Memristor is a name of passive two-terminal circuit elements in which there is a functional relationship between charge and magnetic flux linkage. A Memristor could be used to replace the Transistor within devices such as memory, CPU devices, and because of the nonvolatile nature, (do not lose stored data when switched off), Solid State Hard drives. It has been stated that these Memristors could lead to new designs of computers. They may be able to be used in an analogue way that mimics the human brain. They could , of course, also be used in other devices. The Memristor term is short for memory resistor.
Memristor chips require less energy to operate than current alternatives, such as flash memory. They also store data in approximately half the space required by flash chips and are virtually immune to interference from radiation – making them attractive to any manufacturer looking to create ever-smaller but ever-more-powerful devices. A Memistor is the fourth passive device predicted by Prof. Leon Chua in 1971: the resistor, the capacitor, and the inductor and now the Memistor.
Electronics Teacher Electronic Tutorials, Electronic Project Kits, Robotics Guide for Students, Amateur and Professionals. Computer Architecture and Digital Circuits.
Williamson Labs
Tutor animations about electronics. Also other categories.
JPR
Electronics is an independent distributor of quality assured electronic
components and accessories to Manufacturers, Wholesalers and Education
establishments worldwide.
Easby Electronics.
We are a specialist stockist of passive electronic components and distributor of
passives, electromechanicals, connectors and discrete semiconductors. Easby is a
franchised distributor and agent for a wide range of passive electronic
components, capacitors, connectors, relays, resistors and semiconductors from
manufacturers around the world.
Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to take the step from physical prototyping to actual product. We are creating this software in the spirit of Processing and Arduino, developing a tool that allows users to document their Arduino and other electronic-based prototypes, share them with others, teach electronics in a classroom, and to create a pcb layout for manufacturing.
Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to take the step from physical prototyping to actual product. We are creating this software in the spirit of Processing and Arduino, developing a tool that allows users to document their Arduino and other electronic-based prototypes, share them with others, teach electronics in a classroom, and to create a pcb layout for manufacturing.
Improve your Fritzing skills with these short tutorial videos
Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to take the step from physical prototyping to actual product. We are creating this software in the spirit of Processing and Arduino, developing a tool that allows users to document their Arduino and other electronic-based prototypes, share them with others, teach electronics in a classroom, and to create a pcb layout for manufacturing.
Fritzing is a really cool cross platform application that lets you create PCBs from breadboard layouts.
Arduino is
an open-source electronics prototyping platform based on microprocessor, flexible, easy-to-use hardware
and software. It's intended for artists, designers, hobbyists, and anyone
interested in creating interactive objects or environments.
Fri, 03 Feb 2012 20:38:04 +0000 - This is a tiny, easy to make USB Lithium-Polymer battery charger. It’s based on the MAX1555 charger IC. Tiny USB Li-Po battery charger - [Link]
Fri, 03 Feb 2012 20:33:33 +0000 - dangerousprototypes.com writes: Here (machine translation) is a DIY single-layer version of the Arduino Leonardo. The blogger goes into detail on how to build one yourself. Everything is covered from preparing and etching your own DIY board, to fine pitch soldering of the ATmega32u4 IC. Once you have built your board, they show you how [...]
Fri, 03 Feb 2012 20:30:28 +0000 - Here is an interesting electronics gadget. It’s a semiconductor component tester that displays the type, pinout, and some relevant specifications of the device connected to its probes. [via] It doesn’t matter how you connect the test clips to the component, the Atlas DCA can analyse a vast number of different component types including bipolar transistors, [...]
Fri, 03 Feb 2012 20:21:24 +0000 - dangerousprototypes.com writes: We’ve seen some pretty cool projects that use blinking lights on a PC monitor to transfer data to a microcontroller. We did a little research, and here are some example projects we’ve found. This project uses two photo transistors to read a bar code from the monitor. One handles the clock, while the [...]
Fri, 03 Feb 2012 20:15:42 +0000 - The Little Wire is an open source AVR programmer that’s packed full of features: An AVR programer Four digital GPIO pins ADC with 10 bit resolution Two parallel hardware PWM outputs An USB interface A SPI interface Little Wire – minimal AVR programmer and more - [Link]
Fri, 03 Feb 2012 19:37:26 +0000 - Nimbits is a service you can use to record and share data on the cloud. It is a free, social and open source platform for the Internet of Things. Nimbits Server is a free and open source Operational Process Data Historian you can use to create and share data points on a public or private [...]
Fri, 03 Feb 2012 19:28:05 +0000 - Here is an app note from Maxim describing how to implement a digital potentiometer to adjust the output of a boost converter. Digipot is controlled through two push buttons. One controls the direction of the wiper, while the other moves the digipot wiper in the selected direction. [via] The digipot is implemented on the DC/DC [...]
Fri, 03 Feb 2012 19:24:34 +0000 - electronics-diy.com writes: With this Stereo FM Transmitter with BA1404 you will be able to create a mini stereo FM station and broadcast to your entire home, a simple way to have an audio link wireless with ease. With the FM transmitter BA1404 Hifi Stereo you can stream your music from your iPod MP3, satellite receiver, [...]
Fri, 03 Feb 2012 19:13:59 +0000 - dangerousprototypes.com writes: Mashiara designed an I2C controlled 4×4 RGB LED matrix. He uses 3 PCA9635 I2C-to-PWM drivers with 16 PWM outputs. Each IC controls a different basic color of the LEDs. The up-side to this design is that all of the drivers are on-board, and only control signals are needed to manipulate the matrix. The [...]
Fri, 03 Feb 2012 19:09:48 +0000 - Christopher built an ATTiny85 development board. It has all the microcontroller pins broken out to a 2×4 dual row pinheader, a power indicator LED, and a reset button as well. [via] DIY ATTiny85 Development Board - [Link]
Electronic Design Automation (EDA) tools, and traditionally allow you to draw out a symbolic representation of a circuit using
a schematic capture interface, (sometimes) simulate it with a circuit simulator, and then finally lay out the circuit on a printed circuit board (PCB).
Also see Makezine
for more information about this
This hands-on "boot camp" introduction to using oscilloscopes was presented at the historic site of Marconi's 1914 Transatlantic Receiving Station, later home of the U.S.Army's Signal Corps Laboratories at Camp Evans, and now the home of the InfoAge Science and History Learning Center.
The program is presented in three parts:
Part 1: History of Oscilloscopes, by Al Klase, Technical Coordinator for NJARC
Part 2: Basics of Oscilloscopes, by Alan Wolke, Application Engineer at Tektronix Corporation (begins at 15 min. 42 sec. into the program)
Part 3: A Brief History of Oscilloscope Tubes, by Nevell Greenough (begins at 2 hr. 13 min. 35 sec. into the program.)
PCScope A f ully functional PC based digital oscilloscope using sound card. It offers a large viewing area along with easy to use controls. The controls can be aligned to top, bottom, right or left of the window for ease of use.
Dual channels use stereo inputs of the sound card.
View any number of channels simultaneously from CH1, CH2, CH1+CH2, CH1-CH2 and CHxCH2.
Independent manual or auto control of vertical gain, offset and position of each channel.
Horizontal scale and offset allow for zoom-in of the acquired data in auto or manual mode.
Free running (Auto) and triggered (Normal) modes.
Edge trigger on rising, falling or both edges.
Trigger source channel can be either CH1 or CH2.
Adjustable trigger position from 0% to 100% lets you view pre-trigger and post-trigger data.
Selectable record length (Number of samples per acquisition) from 10 to 1M.
Selectable sample rate upto 192 KSPS.
Dual manual horizontal cursors with delta.
Dual automatic or manual vertical cursors with delta.
Single, Run/Stop, number of acquisitions and time duration acquisition modes.
Setup save and recall.
Waveform save in ascii format.
Controls can be aligned to top, bottom, right or left of the window for ease of use.
Can be interfaced to other DspSee modules. Allows automated measurements. digital signal processing of the acquired signals.
The PC based Soundcard Oscilloscope receives its data from the Soundcard with 44.1kHz and 16 Bit resolution. The data source can be selected in the Windows mixer (Microphone, Line-In or Wave). The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards. The low frequency end is limited by the AC coupling of the line-in signal. Be aware, that most microphone inputs are only mono. The oscilloscope contains in addition a signal generator for 2 channels for Sine, Square, Triangular and Sawtooth wave forms in the frequency range from 0 to 20kHz. These signals are available at the speaker output of the sound card. These can be fed back to the oscillocope in order to generate Lissajous figures in the x-y mode.
Trigger modes: off, automatic, normal and single shot
Triggerlevel can be set with the mouse
The signals of the two channels can be added, subtracted and multiplied
x-y mode
Frequency analysis (Fourier spectrum)
Frequency filter: low-, high- and band-pass
Cursors to measure amplitude, time and frequency in the main window
Audio Recorder to save data to a wave file
For multi soundcard system, the used card can be selected in the settings tab
The transmitter circuit uses Microchip's dsPIC33FJ16GS504 for the analog-to-digital conversion of the input signals on two channels. The processed data on the dsPIC are then transmitted to the phone (for waveform display) via the LMX9838 bluetooth SPP module.
Oscilloscope for iOS is a powerful digital Oscilloscope & Signal Generator app. Designed to plot audio signals, monitor equipment, analyze events, and test circuits, it is also an excellent learning tool. Its GUI includes many standard oscilloscope controls, such as: triggering, time and voltage per division, signal measurement cursors, and more.
Feature Highlights:
Real-time waveform display (60 FPS)
Triggering modes: Normal, Auto, Single
Set trigger level and pre-trigger time
Built-in function generator
Reference signal calibration
Pause function to get a screen capture
Measure signal data using cursors
Use "finger pinch" on screen to set voltage and time base
Dave is sick of getting emails asking if the cheap toy DSO nano and PGA/PIC/AVR oscilloscope kits are worth buying.
EEV Blog An off-the-cuff video blog and Podcast of interest to anyone involved in electronics design. Electronics professionals, hobbyists, hackers, and makers will find something of interest here. Presented in Dave's unique non-scriptedoverly enthusiastic style :-
Thu, 02 Feb 2012 22:13:03 +0000 - Dave got fed up not knowing if his Hakko FX-888 iron was left on or not. So hacked the LED to toggle RED/GREEN, so it’s always on. Toshiyuki Kita link
Wed, 01 Feb 2012 21:32:51 +0000 - http://www.pcbzone.net http://iteadstudio.com/ Many people asked to see the PSU PCB’s from Circuit Labs in New Zealand. Here is an in-depth look, compared with the same board from ITEAD Studios
Mon, 30 Jan 2012 23:24:47 +0000 - PART 7: http://www.youtube.com/watch?v=s8b4h_UybLE After some Arduino hurdles, Dave troubleshoots his DAC SPI driver code in “real time”, and takes a peek at an issue with the LCD I2C bus. As well as showing off his PSU PCB for the first time. The PCB is from Circuit Labs in New Zealand: http://www.pcbzone.net
Tue, 24 Jan 2012 23:39:23 +0000 - SIGN UP HERE: http://www.eevblog.com/2012/01/18/ucurrent-request-list/ PART 1: http://www.youtube.com/watch?v=VXE_dh38HjU A follow up to Dave’s popular PCB Design For Manufacture (DFM) tutorial video. This time he updates his uCurrent PCB for production, including panelisation layout and component reel selection. Lots of the same ground is covered as in part 1, but with a specific real project example.
Fri, 20 Jan 2012 12:28:20 +0000 - Dave has changed a few things in the Rev B schematic of his power supply design. Talk on opamp specifications, I2C I/O expansion and AVR microcontroller pin usability. Download the RevB schematic HERE
Wed, 18 Jan 2012 00:36:19 +0000 - The latest batch of uCurrent’s has sold out again! If you missed out, this time I have a list you can sign up to register to get one: This doesn’t guarantee you anything, but I will base the next batch number on how many sign up to this list, so there should be enough for [...]
Sun, 15 Jan 2012 08:14:57 +0000 - Dave got a Makerbot Thing-O-Matic 3D printer. A look at what’s inside the box, plus some bonus rants. if it takes this long to un-box, how long will it take to build?
Fri, 13 Jan 2012 22:49:00 +0000 - PART 1: http://www.youtube.com/watch?v=I55uLRRvLCU What’s inside the FE-5680A Rubidium frequency standard? Available on ebay for about $50 or so.
Fri, 13 Jan 2012 22:42:57 +0000 - TEARDOWN: http://www.youtube.com/watch?v=FRdGsSu5Nec What’s all this Rubidium Frequency stuff anyhow? Dave got an FE-5680A Rubidium frequency standard on ebay. How do they work?, and how does it compare to a regular crystal oscillator, a DTCXO, or an oven stabilised oscillator?
Wed, 11 Jan 2012 09:04:57 +0000 - What about reverse bias protection on the LT3080, does the design need it? Dave does a quick test to find out what happens. Will it smoke?
Fri, 06 Jan 2012 06:54:25 +0000 - Dave goes through the final base schematic for his Open Hardware lab power supply design. Schematic is here: http://eevblog.com/uploads/uSupplyBenchRevA.pdf
Thu, 05 Jan 2012 06:36:13 +0000 - UPDATE: SOLD OUT in about 10 minutes, sorry! More on order, sending to the assemblers today. I have 15 more µCurrent’s available now. To be fair, I will list them on my shop tomorrow, Friday, 6 January at 9AM Sydney time. CLICK HERE for the timezone conversions. First in gets them. I’ve had too many [...]
Sat, 31 Dec 2011 03:45:15 +0000 - Dave, Phil, and Rog battle Murphy to find an elusive short on their ArduCopter ArduPilot IMU (OilPan) board before they can get their CanyonCopter in the air for its first test flight. Or, how to trace down a short on your power rail.
Thu, 29 Dec 2011 07:33:06 +0000 - UPDATE: Sorry, they sold out overnight again! I have new stock of the µCurrent adapter again: http://www.eevblog.com/projects/ucurrent/ http://www.eevblog.com/shop First in, best dressed, sorry, I do not take backorders nor can I “put one aside for you”.
Sat, 24 Dec 2011 01:52:04 +0000 - A tour of the new EEVblog lab, still under construction… The arcade machine is from Wollongong Arcade Machines: The Rubber ESD work mat: http://www.oritech.com.au/productDetail.aspx?productID=20512
Sat, 24 Dec 2011 01:46:12 +0000 - Gavin “The Mechatronics Guy” in a presentation about his Open Source Light Scythe project: https://sites.google.com/site/mechatronicsguy/lightscythe
Wed, 21 Dec 2011 21:52:52 +0000 - Yes, that’s right, there is now a Maker Faire in Australia! Saturday 14th January 2012 at Swinburne University of Technology in Hawthorn, Victoria. Sign up now and get your FREE tickets. Yes, it’s free, but you do have to register for logistical reasons. Or better yet, show of your own stuff, or give a talk [...]
Tue, 06 Dec 2011 22:20:11 +0000 - The 4th installment in the lab power supply design series. This time Dave shows you how to control the supply with a Pulse Width Modulation (PWM) signal, and chose the correct filter values.
Sat, 03 Dec 2011 06:39:41 +0000 - Part 3 of the lab power supply design. This time the prototype build on a breadboard and some basic measurements, checks, and playing around.
Sat, 03 Dec 2011 06:37:12 +0000 - Dave demonstrates a little trap with the “High Resolution” mode on modern digital oscilloscopes like the Agilent 3000X series.
Tue, 29 Nov 2011 02:04:01 +0000 - PART 1 is HERE: http://www.youtube.com/watch?v=CIGjActDeoM Part 2 of Dave’s constant current linear regulated lab power supply design. An in-depth look at the LT3080 datasheet, the LM334 current source, and a few more circuit tweaks before it’s ready to build in the next episode to see if it works! And thanks to John from LT who [...]
Sun, 27 Nov 2011 22:08:10 +0000 - Dave shows you how to design a simple constant current and constant voltage lab power supply that can be either software (PIC/AVR et.al microcontroller) or traditional pot controlled. Starting with the venerable LM317, and ending up with an LT3080 solution, and the some thought processes that go into it all. Part 1 is the conceptual [...]
Sun, 13 Nov 2011 23:00:15 +0000 - Not content with 400 resistors, Dave ups the ante with several thousand genuine OneHungLow resistors, a semi-automated test jig, and some anger and love for the Agilent U1272A multimeter.
Tue, 08 Nov 2011 06:22:55 +0000 - Just how far out is that +/-1% metal film resistor you are using? Is it just random? Does it follow the classic bell shaped Gaussian response? What are the odds of getting one that’s spot on, or right out at the limits? Dave thought he’d find out, the hard way… Original Data can be found [...]
Sun, 06 Nov 2011 01:43:07 +0000 - Whist on the lab headlamp tour Dave found an old Commander phone system, and naturally couldn’t resist doing an impromptu teardown! The Victorinox MiniChamp The Victorinox CyberTool
Mon, 31 Oct 2011 00:02:29 +0000 - Dave feels a tad nostalgic, so takes apart his 25+ year old DIY decade resistance substitution box. And some info on how you can build your own. DIY thumbwheel box: http://www.eevblog.com/forum/index.php?topic=4244.0
Thu, 27 Oct 2011 22:41:45 +0000 - What’s inside a $500 commercial decade resistance substitution box from IET Labs? Dave’s about to find out. http://www.ietlabs.com/decadebox/rsbox.html
Sun, 23 Oct 2011 22:28:41 +0000 - A Krohn-Hite MV106J DC Voltage Standard calibrator landed on Dave’s bench. What’s inside? How does it work? Is it still within spec?, and what’s all this (lack of) Kelvin-Varley and LM299 zener reference stuff anyhow? And no adventure in calibration check is complete without a visit to the TrioSmartCal lab.
Thu, 20 Oct 2011 22:49:17 +0000 - Agilent have today released new 2.0 firmware for the 3000X series oscilloscopes. Dave takes a quick look at the new Arbitrary capability on the function generator, something he complained was lacking in the original review!
Mon, 17 Oct 2011 04:11:53 +0000 - It’s all about the tongue angle when Dave tears down his Tektronix 2225 oscilloscope and tweaks a few of the pots to drag the unit back into cal.
Mon, 17 Oct 2011 04:07:19 +0000 - Dave caught up with Richard Popple from Rohde & Schwarz to talk about the new Hameg oscilloscopes, the Hameg acquisition, and the Rohde & Schwarz Scope of the Art oscilloscopes.
Mon, 17 Oct 2011 04:02:35 +0000 - Dave caught up with the designer of the Cleverscope, Bart Schroder at the Electronex show. He gives us some history on the company (from New Zealand) , the scope, a quick on the spot teardown, and what latest scope design he’s working on.
Thu, 13 Oct 2011 02:27:32 +0000 - Dave visits the Electronex Electronics Expo in Melbourne, Australia’s biggest electronics trade show. What will Altium be in for? :->
Thu, 13 Oct 2011 02:22:43 +0000 - Dave caught up with Karl von Moller at the Electronex expo in Melbourne and asked him about the progress on his Australian documentary State of Electronics.
Fri, 07 Oct 2011 11:38:55 +0000 - Dave’s first Walk Time Rant. The sad death of Steve Jobs at Apple, and how Dave got shafted on his new EEVblog office space at the 11th hour.
Fri, 07 Oct 2011 11:35:35 +0000 - Dave takes a look at the new generation $79 “stripped down” Kindle 4. How does it compare with the current Kindle 3 reader?
Thu, 29 Sep 2011 00:03:43 +0000 - How to design, prototype and test a two cell 18650 Lithium Ion battery pack level gauge using the classic LM3914 dot/bargraph display driver chip. A favorite from Dave’s youth! Dave gives you all you need to know to implement a simple expanded scale voltmeter with the LM3914, without adjustment pots to tweak. This one works [...]
Sun, 25 Sep 2011 00:18:23 +0000 - Dave visits the Melbourne Hacker Space (CCHS) and takes along special guest Colin Mitchell from Talking Electronics fame.
Thu, 22 Sep 2011 00:31:18 +0000 - Dave goes on a tour of EMC Technologies new $1.8M RF Anechoic Test chamber used for automatic and product testing for EMC emissions and susceptibility. Also their other test chambers like the GTEM (Gigahertz Transverse Electromagnetic) test facility. Thanks to Rob Weir (Yes, he’s a New Zealander :->) www.emctech.com.au
Tue, 20 Sep 2011 03:44:37 +0000 - Ever wondered how they test mobile phones for radiation and impact upon the human body? Dave gets a tour of EMC Technologies $1M+ mobile phone (and WiFi) radiation Specific Absorption Rate (SAR) testing facility. Thanks to Jason Cameron from EMC Tech. http://www.emctech.com.au
Sat, 17 Sep 2011 09:35:39 +0000 - If you can read this, then the server move worked and you are now using the new dedicated server! The site and the forum should now both be MUCH faster. Please report any problems. Big thanks to @alangarf for helping with all the penguin stuff when shit hit the fan! Thanks Dave.
Sun, 11 Sep 2011 21:32:36 +0000 - Heads up for Aussies. I’ll be at the Electronex show in Melbourne this Wednesday. If you see me, stop and say HI. I’m the stupid looking guy carrying around the camera gear, hard to miss. In fact, the first person to track me down at the show and shout out the password “Great Scott!” wins [...]
Tue, 06 Sep 2011 03:22:12 +0000 - UPDATE: It didn’t go as smoothly as predicted, so we are back on the old HostMonster server for now. Progress continues in the background as time permits… Feel free to post comments and use the forum and site as usual. ——————————— I’m currently moving the site and forum to a new dedicated server! Please hang [...]
Tue, 30 Aug 2011 14:09:18 +0000 - Part 2 of the Tektronix MDO4000 Mixed Domain Oscilloscope review. This time, a world exclusive tear down. What magic lurks inside the die-cast shielded RF spectrum analyzer circuitry?
Tue, 30 Aug 2011 14:07:33 +0000 - In another world exclusive, Dave reviews Tektronix’s new Mixed Domain Oscilloscope, the MDO4000 series that is released TODAY. Does it live up to the hype of changing the oscilloscope landscape and creating a new oscilloscope category? Also, it is a review of the MSO4000 series Mixed Signal Oscilloscope. How does that compare to the Agilent [...]
Sun, 28 Aug 2011 22:22:44 +0000 - Dave gets out of the lab for some fresh air, and a think about what the Makerbot $10M venture capital funding might mean.
Mon, 22 Aug 2011 00:11:44 +0000 - The first EEVblog “RAW” Dave was assembling and testing some µCurrent kits on UStream and decided to record it. There is talk about his Keithly Instruments Voltage & Current sources, engineering statistics, and an open source hardware DIY Pick And Place machine. http://www.eevblog.com/ucurrent The thermal video is here: http://www.youtube.com/watch?v=GkVRX3h_A30 Around the 8:30 mark
Wed, 17 Aug 2011 04:12:21 +0000 - 30 minutes of Dave twiddling knobs on a 2nd hand 50MHz Tektronix 2225 analog oscilloscope – it’s right here! Who else can get so excited about a 500uV/div vertical scale?
Thu, 11 Aug 2011 23:08:55 +0000 - Open your mind to Open Source Hardware. Dave gives you the low-down on what Open Source Hardware (OSHW) is, how it works, and some benefits of using it for your own projects. LINKS: http://freedomdefined.org/OSHW http://en.wikipedia.org/wiki/Open-source_hardware http://creativecommons.org/licenses/ http://www.ohwr.org/cernohl http://en.wikipedia.org/wiki/LGPL http://www.tapr.org/ohl.html
Sun, 07 Aug 2011 00:23:31 +0000 - Dave recently implemented an Actel Ignoo Nano and Xilinx Spartan 3 FPGA into a design, so decided to share some rather random notes on how to implement the FPGA’s in this scenario. From datasheet specs, traps for young players, global clocks, FPGA fabrics, core power supplies and decoupling, getting the schematic basics, JTAG and flash [...]
Fri, 05 Aug 2011 08:10:37 +0000 - Just a quick one. Dave found the latest LOST easter egg in the Agilent 3000X/2000X series oscilloscope Ver1.2 firmware.
Mon, 01 Aug 2011 09:35:37 +0000 - What’s the easiest way to electronically trigger a mouse trap? Dave has an idea… Just don’t ask why, OK, Dave doesn’t know either…
Mon, 01 Aug 2011 09:33:12 +0000 - The greatest live show ever. World renowned guests, pyrotechnics, performing monkeys, aliens, marching bands, and the changing of the grenadier guards. No? Would you believe just two hours of Dave answering questions and yapping on? Yup.
Mon, 25 Jul 2011 04:06:41 +0000 - What’s more fun that reviewing the new iRiver Story HD Wi-Fi eBook Reader? Tearing it down of course! Dave cracks it open to see what’s inside. Hi-res photos are here: http://www.flickr.com/photos/eevblog/sets/72157627127757905/ And Yes, the JTAG pins are there, right under my nose as labeled test points. Left side of the processor. Doh
Mon, 25 Jul 2011 04:02:18 +0000 - Dave unboxes and reviews the latest iRiver Story HD Google Ebook Reader and compares it to his Amazon Kindle 3. How does it stack up?
Fri, 22 Jul 2011 02:27:39 +0000 - It’s been a while, so the next live show will be this Sunday Sydney time. That’s this Saturday for you Yanks. http://www.eevblog.com/live-show/ Sunday, 24 July 2011 at 00:00:00 UTC That’s Sunday, 24 July 2011 at 10:00:00 AM SYDNEY time.
Thu, 21 Jul 2011 01:26:53 +0000 - Dave tears down the Tektronix TDS2000 series TDS2024C DSO, what’s inside? And he can’t help but rant about the sample memory size and compare it to the venerable TDS210 from 1997 or so…
Sun, 17 Jul 2011 23:30:17 +0000 - Part 3 of the hand soldering tutorial. This time Dave shows you how to drag solder and tack & reflow SMD components, and in particular 0.5mm fine pitch IC’s. Including solder paste and hot air.
Mon, 11 Jul 2011 00:59:37 +0000 - What have Fluke been up to since the infamous GSM mobile phone bricking incident back in Oct? Not only have they fixed it, but they are giving an unprecedented exclusive look at their new pre-production board! Hi-Res photos here: http://www.flickr.com/photos/eevblog/sets/72157627120630430/
Wed, 06 Jul 2011 00:35:52 +0000 - Dave’s off-the-cuff open source hardware multimeter concept. Inspired by the thread on the EEVblog forum: http://www.eevblog.com/forum/index.php?topic=3978.30
Sat, 02 Jul 2011 12:38:01 +0000 - A beginners guide to learning how to hand solder. Remember to watch the first part, which is all about the tools: http://www.youtube.com/watch?v=J5Sb21qbpEQ
Fri, 24 Jun 2011 08:19:03 +0000 - Dave does a quick hack on his Rode Videomic so he can actually see the battery LED when he’s in front of the camera. UPDATE: After further research it turns out the existing LED constitutes the majority of the product current consumption. So I’ll re-wire this new one in series with the existing LED and [...]
Tue, 21 Jun 2011 11:47:49 +0000 - Dave show you how to solder a small 3 axis accelerometer LGA surface mount chip “dead bug” style onto a microcontroller prototyping board. This technique allows you to easily prototype projects using tiny SMD components designed only for reflow soldering.
Sun, 19 Jun 2011 12:26:09 +0000 - Dave takes you through everything you need to know to do good quality soldering. Part 1 is all about the tools you might need. A lot of this was already covered in my general lab tools video.
Fri, 17 Jun 2011 06:37:28 +0000 - Malcolm Faed drives an Mitsubishi MiEV Electric Car into the EEVblog lab to give Dave a look and a test drive. And also talks about his electric ute conversion. Detailed iMiev technical specifications: http://www.autocrc.com/files/File/Mitsubishi%20i-MIEV%20Technical%20Highlights.pdf Australian electric vehicle association: http://aeva.asn.au EV Album: http://evalbum.com Mal’s blog: http://a4x4kiwi.blogspot.com/
Wed, 15 Jun 2011 05:00:43 +0000 - Agilent responded to the U1272A problems within 3 weeks, and have a nice present for all current owners to boot. Mini rant time too – Manufacturers take note, this is how you respond to problems and keep customers happy. Hey Fluke, where is your response? Here is the Agilent notice: http://cp.literature.agilent.com/litweb/pdf/U1272A-02.pdf
Sat, 11 Jun 2011 03:44:51 +0000 - *groan* Yes, I hate Facebook, but some people like it, so just a reminder and small plug there is an EEVblog Facebook page: http://www.facebook.com/EEVblog And I’ve now got it set up so my Youtube videos automatically get fed to the Facebook page. Usually no other content on there, just my video blog posts, so you [...]
Fri, 10 Jun 2011 11:53:18 +0000 - What does every 4 week old baby need? A visit to a NATA certified calibration laboratory, that’s what! Dave takes his baby scales to a NATA cal lab to check it’s performance, because, well, he can… Check out http://www.triosmartcal.com.au
Wed, 08 Jun 2011 23:44:06 +0000 - Want to include a small Lithium Ion or Lithium Ion Polymer battery into your next project? It’s easy! Dave gives you the low down on how they work and how to charge them and select a suitable charging IC. NOTE: For safety you should always use circuit protected cells as per the larger cell I [...]
Sat, 04 Jun 2011 23:41:13 +0000 - Dave talks about the Top 3 winners in the Renesas RX Design Contest he was judging. Check out the winners HERE: http://www.renesasrulz.com/community/rx-contest
Mon, 23 May 2011 01:45:09 +0000 - Dave shows you how he built his own acoustic sound absorption panels for his recording studio using Tontine Acoustisorb 3 material. Data on the material is here: http://www.tontineinsulation.com.au/technical-data
Sat, 21 May 2011 09:38:53 +0000 - A teardown of the Agilent U1272A Multimeter Photos of the Teardown are here: http://www.flickr.com/photos/eevblog/sets/72157626761928610/
Thu, 19 May 2011 02:35:19 +0000 - Dave has rotten luck with test gear for review failing. What’s up with his Agilent U1272A Multimeter? See a follow-up video from a viewer who posted this:
Fri, 29 Apr 2011 23:39:50 +0000 - How to set up your own decent electronics lab, what you need, and how much it’ll cost you. Electronics test equipment, soldering, surface mount, hand tools, and parts. Help support Dave by buying any of these items through HERE
Mon, 25 Apr 2011 06:37:45 +0000 - Dave reviews one of the cheapest hot air rework stations on the market, the Atten Instruments AT858D+ how does it stack up? Also known as the Saike 858D+ Looks like it’s designed for the Asian market only? http://www.atten.com.cn/search.aspx?pageIndex=1&searchType=keywords&filter=858d
Sun, 24 Apr 2011 23:18:37 +0000 - Because Jeri goofed up my video on the live 555 contest show and chopped off the end, here is the full video! Check out Alan’s Adding Machine: http://www.vk2zay.net/article/258
Tue, 19 Apr 2011 22:39:22 +0000 - Dave had a small problem in the lab and fixed it with some electrical tape. Yes, the video is pointless, but why not? Could have been funny if it failed…
Sat, 16 Apr 2011 02:32:30 +0000 - Dave has a play with a German Martin brand Dot Liner automated Solder Paste Dispenser machine. http://www.martin-smt.de/en_p_d_dl06.php?contentInc=dispense All, see the Shanghai Special video for other automated solder machines: http://www.youtube.com/watch?v=9A1j2RkwJOc
Tue, 12 Apr 2011 07:23:56 +0000 - Dave shows how the piezoelectric effect applies to oscilloscope probes. Dave’s entry for the My Tektronix Scope contest: Please VOTE for it here once per day for the rest of April -Thanks! http://mytektronixscope.com/videos/#vote
Fri, 08 Apr 2011 04:53:38 +0000 - No, the 555 Timer doesn’t have an easter egg in it, Dave was pulling your leg. Many people wanted to know how it was done, so here you go!
Wed, 30 Mar 2011 03:44:08 +0000 - One of the more obscure controls on an oscilloscope is the Trigger Holdoff control. A dedicated control on most high end analog oscilloscopes, and a main menu option in modern digital scopes, yet often poorly understood. What does it do and how does it work?
Thu, 24 Mar 2011 22:06:50 +0000 - Who else but Dave can turn what was supposed to be a simple 2 minute AVR ISP hack video into a 30 minute episode on designing and measuring the performance of an LM317 voltage regulator circuit, with a bonus shootout between the Fluke 87V and the Gossen Metrahit XTRA multimeters?
Thu, 24 Mar 2011 06:38:24 +0000 - Check out Karl von Mollers latest trailer for his epic multi-part documentary State of Electronics: The original in here: http://vimeo.com/21424290 Fellow bloggers: Karl needs help in getting as many views as possible in order to help sell the documentary to the big media players, so if you could repost the trailer that would be much [...]
Mon, 21 Mar 2011 02:28:59 +0000 - It’s EPIC FAIL time. There is one thing Dave hates worse than bad product design, and that’s ironically bad product design. What’s have HTC done to make him want to do a facepalm?
Fri, 11 Mar 2011 02:35:23 +0000 - Dave shares an experience with his new prototype PCB’s from ITead Studio. Super awesomely cheap, but beware! http://iteadstudio.com/store/index.php?main_page=index&cPath=19
Thu, 10 Mar 2011 00:59:27 +0000 - The 8th EEVblog Live Show from the 7th March 2011 Almost 2 hours of Q&A, plus a teardown of the Hameg analog combiscope.
Sun, 06 Mar 2011 11:56:58 +0000 - The 8th LIVE EEVblog show will be March 6/7th (yes, that’s like TOMORROW!) Check the Live-Show tab for details. Usual deal. I’ll be taking questions, ranting, and taking stuff apart.
Thu, 03 Mar 2011 06:40:33 +0000 - The Extech EX505 multimeter is IP67 rated, that means immersion in 1m of water for 30 minutes. Dave only knows one way to test that…
Fri, 25 Feb 2011 04:08:24 +0000 - Dave reviews the big brother to the new 2000 series Agilent Infiniivision scope, the 3000 series. What are the differences?
Mon, 21 Feb 2011 06:33:07 +0000 - A teardown of the Agilent 3000 X Series infinivision oscolloscope. What’s inside? How different is it to the lower cost 2000 series?
Mon, 21 Feb 2011 06:31:26 +0000 - What does $12000 magic smoke smell like? Murphy ensures that Dave always gets the outliers on the production bell curve for review! OFFICIAL RESPONSE FROM AGILENT AFTER INVESTIGATION: We have determined that a short on our LAN/VGA module is what caused the EEVblog unit to stop working. The short caused a resister on the acquisition [...]
Tue, 15 Feb 2011 08:36:55 +0000 - In a WORLD EXCLUSIVE, Dave voids the warranty and takes a peek inside the new Agilent Infiniivision 2000 series oscilloscope that is released TODAY. What will he find?
Tue, 15 Feb 2011 08:33:10 +0000 - Dave gets a WORLD EXCLUSIVE, a look at the new Agilent 2000 series oscilloscope being released TODAY. Is it going to change the world like Agilent claim?
Sat, 05 Feb 2011 22:24:36 +0000 - Dustin Welbourne from the Canberra Reptile Sanctuary is putting up $7500 prize money for a video science competition. And yes, engineers being an applied science can enter too. It is however limited to Australia and NZ only.
Thu, 03 Feb 2011 21:57:46 +0000 - Join Dave as he opens a mystery box of magazines from his archives, in search of his old Talking Electronics FM Bugs book. What will he find?, will it be one of his own projects?, and what were Australian Electronics Magazines like back in the 70′s and 80′s? 100% pure nostalgia!
Thu, 27 Jan 2011 00:37:03 +0000 - How much Wh capacity does a typical Alkaline AA battery have? Dave intends to find out with his new Gossen Metrawatt Metrahit Energy multimeter
Sat, 22 Jan 2011 22:20:07 +0000 - Ever wanted to know what battery capacity is? Dave takes you through everything you need to know about amp-hours, mAh, watt hours, internal or series resistance, temperature effects, battery cutoff voltages, and characteristic curves. Part 2 coming soon.
Sun, 16 Jan 2011 20:44:01 +0000 - Join Dave on the search for a single cell to 500mA 5V DC DC boost converter chip. What will he find?, and how long will it take him? What is the Maxim Datasheet FAIL he uncovers along the way? (Yes, it’s over an hour long, because that’s how long searching for this stuff takes, in [...]
Wed, 12 Jan 2011 21:53:49 +0000 - I’m moving the blog back to my old server. This could take a day or so to do and propagate through the DNS system. So please don’t post comments during this time as they will be lost. If the site goes down or otherwise acts strange, this is the reason. Thanks Dave.
Tue, 11 Jan 2011 02:13:08 +0000 - I’ve entered the iiNet Top Geek competition! Please vote here: http://www.topgeek.iinet.net.au/entry/view/255 No need to sign up, just click on the VOTE button! Thanks!
Tue, 04 Jan 2011 11:46:30 +0000 - An excellent tutorial on transformers & wireless power transfer by fellow Aussie VK2ZAY More info here: http://www.vk2zay.net/article/253
Sun, 02 Jan 2011 11:51:21 +0000 - Dave reviews the new design BK Precision 879B handheld LCR meter. How does it differ from the legacy Escort design? BK Precision have confirmed the MIN/MAX bug and now have a fix available: http://kb.bkprecision.com/questions.php?questionid=182
Mon, 27 Dec 2010 11:28:26 +0000 - Dave has run out of space in the EEVblog lab so needs to fit out the cupboard in his study for all the electronics parts and junk.
Wed, 22 Dec 2010 20:55:34 +0000 - Dave investigates the Amazon Kindle 3 reset/lockup problem that countless people have been having with the leather case. Is it the metal tabs shorting something out, or something else?
Tue, 21 Dec 2010 03:52:22 +0000 - More dodgy components, this time from our friends at Maxim (c/o Motorola) The DS2502 datasheet is HERE UPDATE: Maxim have admitted the problem and have fixed everything without fuss. It turns out the firmware is intended for Motorola phone batteries: http://www.freepatentsonline.com/5717307.html
Mon, 20 Dec 2010 04:08:37 +0000 - I wanted to test my RSS feed, so had to post something. This one is from the vault. Winner of the 2008 Earth Prize short film festival. Beware of the dangers of Dihydrogen Monoxide
Mon, 06 Dec 2010 01:55:30 +0000 - Sorry, no chat window overlay, it got corrupted. Mostly almost 2 hours of Q&A, so a good one to listen to instead of watching. Just start watching when you hear something interesting happen!, like when Dave opens up his 1980′s vintage LED clock project.
Sat, 27 Nov 2010 22:48:43 +0000 - It’s been a while since a live show, so why not, lets do another one! UTC: Sunday, 28 November 2010 at 20:30:00 (that’s Monday 29th 7:30am Sydney time) (Sunday, 28 November 2010 at 12:30:00 PM LA/California time) (Sunday, 28 November 2010 at 3:30:00 PM New York time) See my Live show tab for further details. [...]
Sat, 27 Nov 2010 04:56:06 +0000 - Dave cuts loose on all the US airline security and TSA rubbish, their stupid reactionary process to every new security threat, and the new $9 “Security fee” for all packages going into the US of 453g (16oz). How will affect local business who export to the US Thanks to Don McKenzie: http://www.dontronics.com/pdf/APO_US_surcharge.pdf And don’t try [...]
Tue, 16 Nov 2010 03:55:46 +0000 - Sparkfun’s Nathan Seidle gave an excellent talk on Sparkfun’s history at a Google conference. Original, plus extra info here: http://www.sparkfun.com/commerce//news.php?id=476
Mon, 15 Nov 2010 01:53:57 +0000 - A how-to guide to taking your electronics project from prototype through to high volume PCB manufacture. Covers component selection and purchasing, SMD, DFM, PCB panelisation, gerber generation, drill files, pick and place files, and more.
Fri, 12 Nov 2010 09:44:30 +0000 - Win this very nice UEi DM391 Multimeter by entering HERE As tested in my $100 meter shootout (so it’s slightly “reviewed”!), and it gave a very good account of itself. An excellent industrial quality meter. No lame country restrictions, anyone can enter. All you have to do is be a member of the EEVblog forum.
Fri, 12 Nov 2010 05:10:06 +0000 - For those who just want DJ Delorie’s Soup To Nuts talk in a much better quality audio version, here it is. It was originally a power point presentation, but it works well as just an audio version too. A presentation by DJ Delorie (from RedHat) called Soup to Nuts with Free Software. It highlights the [...]
Mon, 08 Nov 2010 00:14:27 +0000 - An interesting fast paced video presentation about the hardware design process by Amanda Wozniak. Primarily targeted to software oriented people. (Warning, contains strong language, for those who care about such things)
Sun, 07 Nov 2010 23:39:33 +0000 - A presentation by DJ Delorie called Soup to Nuts with Free Software. It highlights the current state of free open source software for end-to-end engineering and personal use. Operating systems, EDA tools, office tools etc Recorded at the Renesas Devcon 2010 event.
Sat, 30 Oct 2010 08:35:49 +0000 - Dave dropped by Apex Electronics in Sun Valley just outside LA, the biggest and oldest surplus electronics store in California (and probably the US?) . Come on a tour through the aladdin’s cave of surplus electronics and hardware. It’s actually pretty sad to see all this old technology just lying on the scrap heap
Dave got fed up not knowing if his Hakko FX-888 iron was left on or not. So hacked the LED to toggle RED/GREEN, so it's always on. Toshiyuki Kita: www.toshiyukikita.com
www.pcbzone.net http Many people asked to see the PSU PCB's from Circuit Labs in New Zealand. Here is an in-depth look, compared with the same board from ITEAD Studios
PART 7: www.youtube.com After some Arduino hurdles, Dave troubleshoots his DAC SPI driver code in "real time", and takes a peek at an issue with the LCD I2C bus. As well as showing off his PSU PCB for the first time. The PCB is from Circuit Labs in New Zealand: www.pcbzone.net
SIGN UP HERE: www.eevblog.com PART 1: www.youtube.com A follow up to Dave's popular PCB Design For Manufacture (DFM) tutorial video. This time he updates his uCurrent PCB for production, including panelisation layout and component reel selection. Lots of the same ground is covered as in part 1, but with a specific real project example.
Dave has changed a few things in the Rev B schematic of his power supply design. Talk on opamp specifications, I2C I/O expansion and AVR microcontroller pin usability.
Dave got a Makerbot Thing-O-Matic 3D printer. A look at what's inside the box, plus some bonus rants. if it takes this long to un-box, how long will it take to build?
TEARDOWN: www.youtube.com What's all this Rubidium Frequency stuff anyhow? Dave got an FE-5680A Rubidium frequency standard on ebay. How do they work?, and how does it compare to a regular crystal oscillator, a DTCXO, or an oven stabilised oscillator?
2011 was a big year for the blog... (Sorry for the video quality, I tried to use Youtubes video stabiliser and now it won't let me revert back to my original video! - Another Youtube FAIL)
Dave, Phil, and Rog battle Murphy to find an elusive short on their ArduCopter ArduPilot IMU (OilPan) board before they can get their CanyonCopter in the air for its first test flight. Or, how to trace down a short on your power rail.
A tour of the new EEVblog lab, still under construction... The arcade machine is from here: wollongongarcade.hopout.com.au The Rubber ESD work mat: www.oritech.com.au
The 4th installment in the lab power supply design series. This time Dave shows you how to control the supply with a Pulse Width Modulation (PWM) signal, and chose the correct filter values.
Part 3 of the Open Hardware lab power supply design. This time the prototype build on a breadboard and some basic measurements, checks, and playing around.
PART 1 is HERE: www.youtube.com Part 2 of Dave's Open Hardware constant current linear regulated lab power supply design. An in-depth look at the LT3080 datasheet, the LM334 current source, and a few more circuit tweaks before it's ready to build in the next episode to see if it works!
PART 2 is HERE: www.youtube.com Dave shows you how to design a simple constant current and constant voltage lab power supply that can be either software (PIC/AVR et.al microcontroller) or traditional pot controlled. Starting with the venerable LM317, and ending up with an LT3080 solution, and the some thought processes that go into it all. Part 1 is the conceptual design of this Open Hardware design.
Voltage, Current, and Resistance - three of the most important
electrical properties, are elegantly intertwined by way of a simple
equation; V = IR, better known as Ohm's Law.
Get to know this fundamental tool of electronics engineering - you'll be
glad you did!
TGIMBOEJ, The Great Internet Migratory Box Of Electronics Junk is a progressive lending
library of electronic components. An internet meme in physical form
halfway between P2P zip-archive sharing and a flea market. It arrives full of wonderful (and possibly useless) components, but you will surely find some
treasures to keep. You will be inspired look through your own piles, such as they are, and find more mysterious components that clearly need to be donated to
the box before it is passed on again.
RS Components is the UK's leading supplier of industrial products, helping thousands of you every day to achieve great things.
Allied Electronics is a small order, high service level distributor of electronic components and electromechanical products with 56 sales branches across the United States and in Canada.
Doctronics
Design & Technology and Electronics Resources.
Electronics WISC
online These interactive learning objects focus on concepts that cover a
broad-based electromechanical program
Jameco Electronics is a distributor of electronic components. The company's broad product line includes semiconductors, passives, interconnects, electromechanical, power sources and specialty products.
Superprobe
Test Probe a Measuring Probe with 17 functions using very
few parts. project was designed to see how much could be done with a PIC chip
and just a few parts. This device is designed around a PIC16F870, a 4 digit LED
display module and very little else. From Mondo
Technology an educational site of PIC Projects in various stages of
development along with pictures, source files, object code files, schematics,
and board layouts. More Microcontrollers,
Controllers
Tech-supplies The online shop for all your PICAXE, electronic, robotic and educational technology projects.
A presentation by DJ Delorie called Soup to Nuts with Free Software. It highlights the current state of free open source software for end-to-end engineering and personal use. Operating systems, EDA tools, office tools etc
Recorded at the Renesas Devcon 2010 event.
The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production. Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.
Electronic design automation(EDAor ECAD) is a category of software tools for designing electronic systems such as printed circuit boards and integrated circuits. The tools work together in a design flow that chip designers use to design and analyze entire semiconductor chips.
TAPR Open Hardware License is TAPR's contribution to the community of Open Hardware developers. TAPR grants permission for anyone to use the OHL as the license for their hardware project, provided only that it is used in unaltered form
BlueStamp Engineering (BSE) is a summer enrichment program for aspiring engineers. BSE students build real and relevant products from concept to prototype. BSE was founded on the premise of ‘learning by doing’ in response to several gaps in the education system
Open Hardware Licenses Open (source) hardware is a licensing agreement for electromechanical projects. That is to say, electronics and robotics and other mechanical projects are open hardware if they are documented and published under an open hardware license.
EDA Industry Working Groups. The Electronic Design Automation (EDA) and Electronic Computer-Aided Design (ECAD) one-stop resource on the WWW!
(with an historical focus on HDL's due to our origin and sponsors)
A collection of EDA and CAD stuff. Electronic Design Automation. CAD: Computer Aided Design. Whatever you call it, one of the things I do around here is take care of our tool collection. The emphasis here is on CAD for design of electronic systems, although a few links to traditional mechanical CAD may be present.
EDA Geek publishes news about the electronic design automation and semiconductor industry.
Virtual Breadboard
is an easy to use simulation and modelling tool that can be used in place of a
real breadboard for quickly performing experiments and testing out electronic
and microcontroller
powered 'embedded' applications.
ExpressPCB.
Free PCB software is a snap to learn and use. For the first time, designing
circuit boards is simple for the beginner and efficient for the professional.
So you're thinking of building a super-widget and wanted to use the latest QFN / MLF (micro lead frame) package parts. But then you actually LOOKED at one, realized how tiny it really is (Picture
left), and decided no way can I solder that! Think again!
This instructable will show you how to design and build a circuit using truly tiny SMT devices.
SMD Circuit Mountiing. Join Collin Cunningham as he explores the oh-so-tiny world of surface mount electronics
Follow along as he constructs what may be the world's smallest phototheremin all in super-macro detail - plus learn why adhesive poster putty is so darn useful.
This video demonstrates how to solder a QFN or MLF chip without solder paste or stencils. While solder paste and a stencil will product the most consistent results, this demonstration only uses an iron, flux, hot air and regular solder to get the job done.
DipTrace Free An advanced PCB design software application that consists of 4 modules: PCB Layout with high-class auto-router and 3D PCB Preview, Schematic Capture, Component and Pattern Editors that allow you to design your own component libraries. Besides being very simple to learn, this software has a very intuitive user interface and many innovative features. For instance, a schematic can be converted to a PCB with one mouse click. Advanced manual placement and auto-placement features allow to get acceptable placement in several minutes. The board designer can instantly renew the PCB from an updated version of schematic and keep all previous work without changes. PCB and Schematic can be compared at any design stage to ensure they are identical. Hierarchical and multi-sheet schematics are supported. DipTrace has a powerful automatic router. It can route a single layer and multilayer circuit boards, and there is an option to autoroute a single layer board with jumper wires, if required. DipTrace also provides you with external autorouter support. Smart manual routing tools allow users to finalize the design and to get the results they want in a blink of an eye. Accurate shape-based copper pour system with different possible fill types and thermals is available. Other important features are Electrical Rule Check (ERC), Design Rule Check (DRC) and Net Connectivity Check - the functions that check connections in Schematic by different rules (pin type, short circuit, etc.), the clearance between layout objects, which ensures board accuracy, and connectivity of all nets not depending on how they are connected (with traces, thermals or shapes). DipTrace modules allow you to exchange schematics, layouts and libraries with other EDA and CAD packages. DipTrace Schematic Capture and PCB Layout also support popular netlist formats and spice. Output formats are DXF, Gerber, Drill and G-code. Standard libraries include 100.000+ components
The EAGLE Layout Editor (Easily Applicable Graphical Layout Editor.), An easy to use, yet powerful tool for designing printed circuit boards (PCBs).
KICAD is an open source (GPL) software for the creation of electronic schematic diagrams and printed circuit board artwork. KICAD is an electronic workbench which is free of charges and is open source (GPL, GNU General Public License). It is useful for everybody working in electronic design (schematic diagrams and Printed Board up to 16 layers).
CircuitBee is for your circuit schematics it provides a platform for you to share live versions of your circuit schematics on your websites, blogs or forums.. You upload your Eagle or KICAD schematics, we crunch the numbers and create an online embeddable version of your schematic. You can pan and zoom, and mouse over components in your circuits for more details . Features include full zooming capability, panning, and even mouse over tips about symbols in the schematic. It may be better than blurry screenshot of your your circuit schematics
The
Hardware Book contains misc technical information about computers and
other electronic devices. You'll find the pin out to most common (and
uncommon) connectors available, as well as info about how to build
cables. More
Electronic links
H&R ENTERPRISES Inc. A wholesale electronic component distributor of integrated circuits, semiconductors, and
other lesser electronic components specializing in obsolete and hard to find parts.
Zach's Cool Stuff. Where people come to expand their knowledge of electronics, robotics,
and technology through hands-on projects (i.e., Building Cool Stuff).
ECE 480 Where a Picture is Worth a Thousand & Twenty-four Words.
Repair World
Electronic Repair. Service & Repair Information for Electronic Technicians
Service Manual Archive. Freely created this site to help all people interested in using, maintaining and repairing their old electronic equipment. Service Manual download site All my manuals are stored in a database, together with a lot of information about the manual and the equipment it is for. For example you can see a preview of the first page, the number of pages, the size, the date and some other information. These functions are unique in the world of manual download. Best, all downloads are free! You will find here a lot of service manuals, operator manuals, user manuals, schematics, data-sheets and other documentation for a wide range of electronic equipment.
Tips and tricks for laying out your circuit board in Diptrace with this video tutorial.
Electronics Repair. Service manual and schematic of home and
office for electronics technicians.
Silicon Chip Australia's electronics magazine, and is primarily directed to
professionals, trades people and enthusiasts in the electronics, electrical, computer and related fields.
The Antique
Chip Collectors Page. Perhaps vintage is a better term than antique
although, in Internet years, integrated circuits have been around for more than
120 years. It is absolutely amazing the number and variety of computing devices
that have been created and obsolesced in just 40 years. Integrated circuits are
used for many purposes, but these pages focus primarily on vintage computing
chips from the 60's-80's.
World's first transistor
Dec. 16, 1947, three physicists at Bell Laboratories in
Murray Hill, N.J., built the world's first transistor. William Shockley,
John Bardeen and William Brattain had been looking for a semiconductor
amplifier to take the place of the vacuum tubes that made radios and other
electronics so impossibly bulky, hot and power hungry. They were so
instantly certain they'd found their answer that they didn't speak a word
of it to anyone for six months, until they could experiment further and
apply for patents. Then on June 30, 1948, they held a press conference in
New York City. They showed the world not only a big model of a transistor
but also a TV and a radio with transistors in place of the tubes. Nobody
was talking about anything like computers yet, but it was a first look at
the future we all live in. The world's response? The New York Times ran an
item at the bottom of its "News of Radio" column on page 46.
Advanced Circuits.
Quickturn manufacturer of printed circuit boards.
Alberta Printed Circuits
Ltd. Manufacturer of double-sided, plated-through hole, printed circuit
boards. Specialty is quick-turn, small quantity orders. They also provide an
engineering pre-production run service up to 2000 square inches per order.
Java Breadboard Simulator application was designed to be a small tool which enables students to simulate circuits developed on a breadboard. Students can place chips on the breadboard and these chips should work just as the
real hardware. In order to allow easy extendibility of the system, each chip is a separate class. The user can write new classes for new chips, re-compile the applet and the new chip will be included.
The Electronics Hobby Page. This page has expanded beyond the simple DX'ing page I envisioned. It now covers a lot of different areas of hobby electronics, including DX'ing. Enjoy! (Quite a lot of electonics web site links).
Electronics
in Meccano you will discover how you can integrate electronic
circuits into your Meccano models, or into many other hobbies as well!
HOW
TO WIRE-WRAP Wire wrapping is a means for making connections between circuit
components using 30g Kynar wire wrap wire and a special wrap tool. The tool
forms the wire in a tight spiral around the 0.025 inch square wire post. The
post must be square in cross-section because the corners of the square dig into
the wire to form a gas-tight connection.
Jonard
Industries Precision Tools for Telecom, devices and Instruments.
Including tools to the Telecommunication, Electronics and Computer Industries.
Hand tools, wire wrapping tools, wire strippers, pliers, desoldering pumps, fume
absorbers, fiber optic tools, IC tools, wrenches, force gauges, connector tools,
wire alignment tools, punchdown tools or other specialty tools.
RoSH,
( Restriction
of Hazardous Substances), also known as Lead-Free. RoHS Directive 2002/95/EC
restricts the use of six hazardous materials found in electrical and
electronic products. All applicable products in the EU market after July 1,
2006 must pass RoHS compliance. RoHS impacts the entire electronics industry.
WEEE,
(Waste from Electrical and Electronic
Equipment). WEEE Directive 2002/96/EC mandates the treatment, recovery
and recycling of electric and electronic equipment (90% ends up in landfills).
All applicable products in the EU market after August 13, 2006 must pass WEEE
compliance and carry the "Wheelie Bin" sticker.
Electricity seems very difficult for most people to understand. You
can't properly see it, you can't properly feel it and you can't
taste it or smell it so what is it? It travels quite well through
metals and generally poorly through non-metals. It doesn't behave
quite like anything else.
But this is not quite true: fluid flowing through a system of
pipes can behave in many respects like electricity flowing in a
circuit. The 'obvious' exception to this is that if you pierce a
pipe full of water, the water comes out.
The main difference is that
water will fill any space whereas electricity will 'fill' only a
conductor. Yes - the analogy is not perfect, but it is helpful and
understanding will come not only from the similarities but also from
the differences.
The aim of this
instructable is not to give you a complete guide on breadboard but to show the basics, and once
these basics are learned you pretty much know all you need to so i guess you could call it a complete guide but in a different sense. Anyway
I
will only be using an led and some resistors ..
A Breadboard is a board with which you can insert components without
soldering them. This make them ideal for test circuits'.
When you think - "DIY electronics", one of the first images that likely comes to mind is a bunch of parts and wire soldered to a standard piece of perforated circuit board - and that makes sense.
Perfboard is super-versatile - essentially it's just a grid of potential solder-point connections.
You can trim it down to just the size you need - or leave extra space for future enhancements ... or revisions, if need be
How to look for a bad bulging capacitors, this is a basic quick way to identify bulging capacitors' and shows you a comparison with a good non-bulging capacitor.
The capacitors' may still function but should be replaced by an equivalence good quality capacitor as soon as possible.
The item using these bad bulging capacitors' may have intermediated faults.
A bright light is recommended to look for a welling on the top of the capacitor.
A capacitor could be leaking and these should also be replaced by an equivalence good quality capacitor as soon as possible.
EEVblog is an
off-the-cuff video blog and Podcast of interest to anyone involved in
electronics design. Electronics professionals, hobbyists, hackers, and makers
will find something of interest here. Presented in Dave's unique non-scripted
overly enthusiastic style!
The basics of how inductors work, a demo showing an inductor filtering out high frequency signals, a quick low pass LC filter, and a demo showing the magnetic field created around inductors.
Continued. The basics of how inductors work, a demo showing an inductor filtering out high frequency signals, a quick low pass LC filter, and a demo showing the magnetic field created around inductors.
An example of a 2kHz audio crossover circuit for a woofer is given, where the low frequencies are allowed to pass through and the high frequencies get filtered out.
Underwriters Recognized (logo) UL is the trusted source across the globe for product compliance. Benefiting a range of customers - from manufacturers and retailers to consumers and regulating bodies - we've tested products for public safety for more than a century. This website is not recognised by this services and this is for information only. (There logos is a backwards "R" attached to a "U") and find the "E" plus six digit number underneath it. You can than look this number up.
Database of PSU OEMs, websites and UL numbers. This is a list of manufacturers (or "brands" if they have their own UL) their UL Certification number (if applicable) and a list of brands manufactured by each manufacturer. Please don't expect the list to be "complete.
Wells-Gardner offers replacement parts
for both newer monitor models as well as models which are no longer
manufactured. The following types of replacement parts are available for many
models: Chassis and neck board kit, CRTs, Flybacks, Video Cables, Power Cords,
Touch Panels and Touch Panel Controllers. For Board level replacement components
such as capacitors, resistors, diodes, etc.
More monitor links
CircuitsArchive is a Web-based free content project to list Electronic Circuits (schematics, projects, boards, PCBs). An electronic circuit is an electrical circuit that also contains active electronic devices such as microprocessors, transistors or vacuum tubes.
Data loggers and Data Acquisition. Build Your Own Probeware. A teacher of high school physics and I use a lot of expensive probeware to collect data. The only reason this can be done at my school has been collecting the probes over a number of years, building our collection slowly over time. For those who aren't science teachers, probeware refers to a collection of interfaces used to connect a variety of sensors to a computer or graphing calculator. These interfaces can allow for real time data collection and graphing or can serve as data-loggers collecting data over time.
Jeri shows the basic construction of solenoid actuators and demonstrates the relationship between strenght and hold power relative to current flow in the coil.
Imagine you could draw musical instruments on normal paper with any pencil (cheap circuit thumb-tacked on) and then play them
with your finger. The Drawdio circuit-craft lets you MacGuyver your everyday objects into musical instruments: paintbrushes, macaroni,
trees, grandpa, even the kitchen sink...
Drawdio brings
to life the everyday interconnections between people and environment,
encouraging you to use your sense of touch, and letting you hear
otherwise invisible electrical connections by creating, remixing, and
playing.
A blazing coating lets microscopic carbon nanotubes generate electricity
Engineers at MIT have devised what they call a new way of producing electricity. By coating a microscopic carbon nanotube with
a layer of fuel and igniting one end with a spark or laser, they're able to send a wave of heat shooting through the nanotube's interior.
This
thermal wave pushes electrons in its path, generating a significant electric current. Prototypes already have energy density 100 times
greater than lithium-ion batteries, and they can be stored indefinitely without leaking charge. The researchers are now investigating optimal
fuels and, to make the system reusable, will have to invent a way to automatically apply a fresh layer of fuel after the first burns away.
How It Works:
1. Heat the Tube. One end of a microscopic carbon nanotube, coated with reactive fuel, is ignited by a laser.
2. Herd the Particles. A wave of heat races through the inside of the tube, pushing electrons toward the other end.
3. Harvest the Energy. The movement of the electrons forms an electric current.
Stanford University researchers have developed a new method of attaching nanowire electronics to the surface of virtually any object, regardless of its shape or what material it is made of.
The method could be used in making everything from wearable electronics and flexible computer displays to high-efficiency solar cells and ultrasensitive biosensors.
ABSTRACT
Nanowires and nanocrystals represent important nanomaterials with one-dimensional and zero-dimensional morphology, respectively. Here I will give an overview on the research about how these nanomaterials impact the critical applications in faster transistors, smaller nonvolatile memory devices, efficient...
A video highlighting our experiment using a Sharpie marker on Mendel to print etch resist and make it's own circuit boards.
The marker tip is ~0.7mm. We are reliably printing 0.7mm traces with 0.6mm clearance. Printing the resist took about 1 hour per coat.
Feedrates could easily have been higher. Two coats is giving effective etch resist. We etched with MG ferric chloride acid* outside in 80 something F and it took about 20 minutes.
After etching we washed the board with water to stop the process and removed the marker residue with acetone.
Then off to the drill press for the tons of holes (I think drilling should have been done by Mendel too). This is in no way a substitute for spoolhead or other needed RepRap circuit technologies that are in the works by other RepRappers, but it works, and... Yeah!
How to reverse engineer a schematic from a circuit board. This project is a result of needing to service a domestic electronic item without being able to obtain a circuit diagram. The process proved to be very long and painstaking, but also very rewarding. The steps presented here are not exact, and you will no doubt find your own way of working which is more effective in the case of any particular board. However, the basic procedure is essentially correct for the majority of boards which are too complex to reliably hand trace. Without the need to invent the process, things should progress more quickly.
EEVblog is an off-the-cuff video blog and Podcast of interest to anyone involved in
electronics design. Electronics professionals, hobbyists, hackers, and makers will find something of interest here. Presented in Dave's unique non-scripted
overly enthusiastic style
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