[Arduino Super Introduction #13] Lighting an External LED | Let's Build Our First Circuit on a Breadboard

Last time, we learned about the anode and cathode of an LED, how to distinguish their orientation, and the role of a resistor ...
EDN

Build Your Own Arduino & Bootload an ATmega Microcontroller – part 1

There are many reasons to build your own Arduino circuit on a protoboard or a custom-designed printed circuit board. At the heart of the Arduino platform is an AVR microcontroller, in usual way you ...
Wired

Belgian Hackers Let You Build Circuit Boards on the Web

The rise of low-cost, hacker-friendly electronics is fueling a new wave of hardware hobbyists. Using programmable boards like the Arduino and dirt-chip computers like the Raspberry Pi, you can build ...
EDN

Fan Speed Controlled by Temperature and Arduino

I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor. I had a few problems with the PWM part mainly because the ...