Septian Dwi Chandra

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Breakout board for $11 LCD module with small pitch

[Ibrahim] picked this little LCD module out because of its price point and resolution. In single units you can grab one of the 128×32 pixel displays …

Arduino

How does a transistor work?

[Video Link] This is a good six-minute video that explains how transistors work. I liked the description of N- and P-type doping. <i>(Via Adafruit)</i>

DIP switch adjusted voltage regulator

It couldn’t be simpler but you have to admit that a small adjustable portable power supply like this one will be really handy.<p>The main part of the …

Arduino

Simon Says learn how to program ARM chips

This breadboard version of a Simon Says game is a great way to try your skills on a new microcontroller platform. The eight-pin chip seen in the …

Convert Battery Powered Electronics to Run on AC

8 Transistor Stereo Amplifier<p>Large Motors Class<p>Thanks for the Instructable. I would like to power a door lock this way but I still want to keep …

Arduino

Solder Safely with this USB-Powered Fume Extractor

Soldering creates some nasty fumes that smell bad at best, and cause chronic asthma over time. If you do it often, you can keep yourself safe though …

Polyphonic Drum Machine

Sebastian Tomczak’s DIY Polyphonic Drum Machine and Rhythm Looper is powered by a Teensy micrcontroller.<p>I’ve made a simple drum machine / looper. It is for Teensy but it can be easily ported to Arduino.It has four sounds, a 16-subdivision pattern, variable sample rate and can playback all four …

Controlling LEDs with Charlieplexing

MAKE contributor Andy has created a great tutorial to introduce you to the utility of “Charlieplexing,” a method for controlling multiple LEDs without the use of multiple microcontroller pins. With Charlieplexing you can turn on or off one LED at a time. To light more than one LED at a time, you …