Recent posts

Thermostat remote temperature sensor hack

Alan Parekh of Hacked Gadgets writes: We all have thermostats in our houses but how often are they in a horrible place? You often want to place the temperature sensor in a different location than the control and display unit. There are lots of...
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Gamecube controller to N64 adapter

Scasagrande shared his Gamecube controller to N64 adapter in the project log forum: Today I bring to you my Gamecube controller to N64 adapter. Basically I was playing my N64 and was sad about how the analogue sticks are getting old and loose. So...
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Make your own dual programmer in AVRDUDE

Stephen Wylie tweeted,  “Program two ATmegas w/an Arduino & AVRDUDE without re-cabling in between!” Those of you who have programmed an Arduino through the Arduino or AVR Studio IDE may have noticed the utility that is really...
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Handmade cases for Bus Pirate v3.6 and Bus Blaster

Enrique Murias made these DIY cases for his Bus Pirate v3.6 and Bus Blaster.   Via Twitter.  More cool DIY cases here. You can get a Bus Blaster v4 for $45 and a Bus Pirate for $30.

On-chip decoupling capacitors

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...
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Android USB tethering driver for Mac OS X

HoRNDIS, a USB tethering driver for Mac OS X by Joshua Wise: HoRNDIS (pronounce: “horrendous”) is a driver for Mac OS X that allows you to use your Android phone’s native USB tethering mode to get Internet access. It is known to work...
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Free PCB Sunday: Pick your PCB

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion...
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App note: MIC2039 single input, stack configuration for high current applications

An app note (PDF) from MICREL on their MIC2039 stackable switches with programmable current limiter. Because processors are required to work faster with each successive generation and the consumer electronics market is expanding, the demand for...
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App note: AC switch triggering with 3.3 V power supply

Controlling AC switches from a 3.3V MCU pin, an app note (PDF) from ST. This document focuses on the calculation of gate current consumption of various types of AC switches when using a 3.3 V power supply. Until now, the standard of a 5 V power...
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Realtime GPS+GPRS tracking of vehicles using Arduino

Javier from CookingHacks writes: We made a