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It turns out that the power supply unit, or PSU, of a standard desktop computer is the perfect device to energise most of your DIY electronics projects. With rails for 12, 5 and 3.3 volts, it suits a wide range of hobbyist gadget demands. The following guide will show you how to transform a decommissioned PSU into a tweakable DIY power source.
Smart watches are fine, but they really don’t capture the DIY spirit. Over on Instructables, user benhur.gonvalves shows you how to build a smart little watch using an Arduino that comes packed with a pedometer, temperature reader, compass and more.
Timelapse photography is great, and it’s certainly something we’ve seen DIY solutions for before. Over on Make, they show off another way to do it, using an Arduino.
If you’ve ever wanted to magically unlock a door with a quick tap on your wrist, this DIY project is for you. Using an RFduino and some special door components, Marc Jensen, James Squires and Shawn Roske at Make came up with an interesting use of the Apple Watch.
The Arduino is a cheap, fun way to get into building your own electronics, but it can seem daunting to get started. Here, we’ll show you how to get a start-to-finish Arduino primer with a killer project: building a sweet robot arm.