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Archive for the ‘components’ Category

Die photos of the ICs on a EEVBLOG uCurrent

Friday, July 8th, 2016

electronupdate writes, "Managed to destroy one of my EEVblog ucurrent adaptors. Took the opportunity to remove the IC's and de-cap them to study the dies." More details at electronupdate blog. Check out the video after the break. (more…)

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Posted in components | No Comments »

Failure analysis of a dead MOSFET and a power diode

Wednesday, June 29th, 2016

[embed]http://www.youtube.com/watch?v=QWK_uPPZBJg[/embed] This video discusses the failure analysis of a MOSFET and power diode by Electronupdate.

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Posted in components | No Comments »

The SK6812 – another intelligent RGB LED

Thursday, March 10th, 2016

Tim writes: During the last months, a new WS2812 alternative appeared on the market: The SK6812. I finally managed to get my hands on some of them to take a closer look. In most aspects these devices are basically clones of the WS2812. What is interesting however, is that the...

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Posted in components | No Comments »

Dirt Cheap Dirty Reels: cheap component reels from China

Tuesday, January 12th, 2016

Component reels shouldn't be overpriced or difficult to come by. Dirty Reels connects you to cheap Chinese component suppliers in the Huaqiangbei electronics market. Add a reel of resistors to your next DEV shop order for under $4! A dirty reel of 5000 100ohm 5% 0603 resistors from a major Chinese manufacturer like...

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Posted in Chinese Company, components | 33 Comments »

Search Github projects by component, find design references

Thursday, November 12th, 2015

  Search Github hardware by component to find examples and references for your next project. Big schematic and PCB previews mean quick and easy browsing without opening a CAD program. TomKeddie first mentioned this idea at Hacker Camp Shenzhen, and later in the forum and on WeChat. Tom generously shared...

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Posted in components | 1 Comment »

ESP8266: Arduino compatible $5 MCU with WiFi

Friday, April 3rd, 2015

MAKE has posted Alasdair Allan's three part series concerning the ESP8266 MCU. Alasdair highlights the capabilities and limitations of this chip, the installation and use of a supporting version of the Arduino IDE, and how to create a breadboard adapter for the ESP-01 breakout board (pictured above.) Via MAKE.

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Posted in Arduino, components, wireless | 1 Comment »

TAPR/DCC video: System on a Chip – Programming FPGAs for Mixed Signal Systems

Sunday, February 8th, 2015

Here is the first of a four-part video series recently posted from the 2014 TAPR/DCC conference in Austin, TX. This is from the DCC's Sunday Seminar, "a four-hour deep dive" into a single subject, in this case FPGA programming for mixed signal systems. "The presenter is amateur radio operator Chris...

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Posted in code, components, FPGA, Videos, wireless | No Comments »

First impression on the ESP8266 serial-to-WiFi module

Monday, October 6th, 2014

Ray Wang has been experimenting with the ESP8266 Serial-to-WiFi module, which has gained much hype recently. "The module is very compact, easy to interface with, and inexpensive. I wrote an Arduino program to show how to use the Arduino to communicate with the WiFi module and set up a very...

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Posted in components, wireless | 6 Comments »

ESP8266 WiFi chip module

Wednesday, September 24th, 2014

Richard Sloan writes in to highlight his site featuring info on the ESP8266 WiFi module. There is a new IC on the market that is creating a lot of stir, ESP8266 very low cost WIFI chip, available are boards now from China for $5 or less, we are supporting these...

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Posted in components, RF, site, wireless | 1 Comment »

On-chip decoupling capacitors

Monday, September 15th, 2014

Ralph Doncaster writes: In virtually all of my micro-controller projects, I'll use 0.1uF ceramic capacitors between Vcc and Gnd. Depending on the power draw of the MCU and inductance on the power lines, they may not be necessary, at a cost of a penny or less each there's little reason...

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Posted in components, how-to | 4 Comments »

NTSC video signal generation demystified

Monday, September 1st, 2014

Sagar has posted the final installment on his blog series demystifying the NTSC video standard. NTSC progressive scanning mode and simpler sync methods are not well documented and this issue is addressed here. Producing video signals by going to lowest hardware level is fun and satisfying. With the number of...

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Posted in code, components, tutorials | No Comments »

Op-Amp based linear regulators

Tuesday, August 12th, 2014

Warren Young of Tangentsoft writes: Experienced audio DIYers are familiar with monolithic linear regulators like the 78xx series and the LM317. Here’s a simplified block diagram of a standard linear regulator, from National Semiconductor’s Application Note 1148 Let’s see... We have an op-amp, a couple of transistors, a voltage reference, and...

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Posted in components, DIY | No Comments »

Defcon 21 video: Hardware hacking with MCUs

Wednesday, July 9th, 2014

At last years Defcon conference in Las Vegas, NV, hardware hackers Joe Grand, Mark 'Smtty' Smith, LosT, RenderMan and FirmWarez discussed their experiences in using various microcontrollers. Interesting stuff, particularly If you're just getting started with electronics and are trying to navigate the sea of available microcontrollers, microprocessors, and modules.

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Posted in components, Videos | No Comments »

MDO4104B-6 Intro, Probe calibration & license transfer

Monday, June 23rd, 2014

[embed]http://www.youtube.com/watch?v=B1u952AYQos[/embed] KF5OBS writes: Quick overview of the Tektronix MDO4104B-6. Also showing how to properly calibrate the passive probes and debunking the myth that license modules enable theft of options.

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Posted in components | 1 Comment »

DEFCON 21 video: Decapping Chips the Easy Hard Way

Friday, June 6th, 2014

In this presentation from DEFCON 21, Adam "Major Malfunction" Laurie and Zac Franken of Aperture Labs go hardcore with chip analysis. For some time it has been possible to discover the inner workings of microprocessors with the help of a microscope and some nasty chemicals such as fuming nitric acid....

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Posted in components, reversed, Videos | 2 Comments »

DIY NAND Flash reader

Tuesday, June 3rd, 2014

SpriteMods has published their design for a DIY NAND flash reader. When security-testing the 'secure' USB-sticks I got my hands on in the past, I needed a way to directly read the NAND-flash these sticks use to store the data on. For that, I created a quick hack: a NAND-reader...

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Posted in components, DIY, reversed | No Comments »

NEW PROTOTYPE: Premium Make Your Own Keyed Cable Kit

Thursday, May 29th, 2014

How often have you been caught without the right cables? You can salvage an old ugly one from somewhere, or make a last minute part order that delays your project. Never again! The Premium Make Your Own Keyed Cable Kit from Dangerous Prototypes contains enough housing and sockets to make...

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Posted in components, OOMP, Prototypes | No Comments »

GIVEAWAY: Premium Make Your Own Cable Sample Pack

Thursday, May 8th, 2014

Today the Premium Make Your Own Cable Kit is available at Seeed Studio. During development we ended up with tons of connectors, so we kitted them up into a sample pack. 200 cable kit sample packs are now available in the free PCB store. If you'd like to get one now...

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Posted in components, Free PCBs | 142 Comments »

NEW PROTOTYPE: Premium Make Your Own Cable Kit

Thursday, May 8th, 2014

How often have you been caught without the right cables? You can salvage an old ugly one from somewhere, or make a last minute part order that delays your project. Never again! The Premium Make Your Own Cable Kit from Dangerous Prototypes contains enough connectors to make an (almost) lifetime...

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Posted in components, OOMP, Prototypes | 2 Comments »

NEW PROJECT: BGA Reballing Practice Kit, removal, reballing, soldering exercise

Thursday, May 1st, 2014

At Hacker Camp Shenzhen we learned to reball BGA chips at a mobile phone repair school. This technique was developed to repair cell phones with little to no equipment. That means no expensive reballing rigs, no collection of tiny replacement BGA balls. Just simple hand tools. We thought it was...

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Posted in Chips, components, Hacker Camp Shenzhen, Prototypes | 6 Comments »

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Recent Comments

  • coppice: If all you have found so far is fake iphones, the next place you should visit is SEG in Hua Qiang Bei. Get out of...
  • Edward Cooper: Great article and good find on the markets! Any chance you can provide the locations of these places? I'm in Shenzhen at the moment and...
  • Dan: I'm up for one
  • TrickyNekro: Always in for another bunch! :-D
  • mol-1: Maybe this time !