Recent posts

App note: Wi-Fi data logger

An app note from Microchip on Wi-Fi data logger (PDF!): Dataloggers are used in a variety of industries, some examples are: Environmental sensors Motor RPM measurements Location tags using GPS Temperature sensors Light sensors Motion sensors ...
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PWM generator and servo tester with ATtiny45

Jan Henrik wrote this Instructable detailing the build of his PWM generator and servo tester with ATtiny45: This PWM generator also works as servotester, it supports all kinds of servos, which dont need more then 5V Features: Operating...
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DIY pick and place machine

Pete has written an article detailing his DIY pick and place machine build: Above is the back side of the machine.  Along the top is a piece of DIN Rail that extends from the left and right of the ShapeOko frame.  This is where the majority of...
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Free PCB coupon via Facebook to 2 random commenters

Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. More PCBs via Twitter on Tuesday and the blog every Sunday. Don’t forget...
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Week in (p)review April 18, 2014

Here’s a summary of major developments over the last week. Free PCB Friday is coming up soon. NEW PROTOTYPE: Logic Pirate 8 channel, 256K sample, 60MSPS logic analyzer The deal with Dirty Cheap Dirty Boards PCBs Dirty Circuits PCB routing for...
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Programmable VFD display & ticker

Coyt Barringer has been working on a programmable VFD display and ticker project: The goal was to make a small programmable display so I can quickly check the current Bitcoin or Dogecoin price, see the time, weather, etc as I walk into my room....
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RemoteSeven, a 7″ capacitive touchscreen remote

In this video Jason Lopez demonstrates his touchscreen TV remote control, the RemoteSeven.  Code is available on GitHub.

RC servo and PID – ‘Autotune’

Stanley Lio‎ is working on a RC Servo and PID autotune project: The robotic arm built for the magnetic field measurement project leaves several things to be desired. After a new servo is installed, finding the mapping between PWM duration...
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JTAG flashing BCM6348 devices with a Bus Pirate and OpenOCD

Lee of Sodnpoo writes: Having never used JTAG before I thought I’d see what I could do with my new Bus Pirate and one of the old ADSL routers I have lying around – ideally reading/writing to the flash. The v1 BT Home Hub is a Broadcom...
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DIY laser cutter project

Hans Peter of has been working on a Laser cutter project and wrote a detailed explanation on his blog describing the build: Having seen the crazy-fast development of the printers during the time I’ve had mine, I can clearly see...
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