Arduino Pro Micro ATmega32U4-MU 5V/16MHz Module with Micro USB

Description

The Pro Micro is an Arduino compatible board based on the ATmega32U4 and the smallest member of the Arduino family. It is similar to the Arduino Micro, but it is even smaller. It is breadboard friendly and the small size allows you to place the Pro Micro into your breadboard rather than jumpering from the board over to a breadboard. The small size also makes them useful for embedding into a permanent project.