Arduino Nanos also come in handy for prototyping and experimental projects that primarily use a breadboard. Unlike the standard boards like Uno and Mega that come with female pin headers ...

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...

The Mega sells for $65, while the Uno goes for $35. Next up? An Arduino board with built-in Ethernet and microSD. Crazy, we know. %Gallery-103287% ...