Fits neatly both on a perfboard and on a breadboard. Operation is based on the ATMEGA328 chip. Programming interface is miniUSB. Equipped with pin headers.

• chip operating voltage 5VDC
• 20 digital I/O pins (5VDC), of which twelve can be used as analog inputs and seven as PWM outputs
• pin row spacing 15,24mm (= 600mils)
• The USB connection of the Leonardo can be used to emulate, for example, a USB keyboard or mouse
• RESET button and ICSP programming connector