Leonardo R3 Pro ATmega32U4 Micro USB Arduino Compatible

Leonardo R3 is a microcontroller board based on the ATmega32U4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs),
a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller;
simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

Features:

Microcontroller:ATmega32U4
Operating Voltage:5V
Input Voltage (recommended):7-12V
Input Voltage (limits):6-20V
Digital I/O Pins:20
PWM Channels:7
Analog Input Channels:12
DC Current per I/O Pin:40 mA
DC Current for 3.3V Pin:50 mA
Flash Memory:32 KB of which 4 KB used by boot loader
SRAM:2.5 KB
EEPROM:1 KB
Clock Speed:16 MHz

Package included:

1 X Arduino Leonardo R3 ATmega32U4