Arduino Micro [ATmega32u4]

Arduino Leonardo can be used as different (different than Serial) USB devices when connected to computer. With UNO this is possible too but more cumbersome.

Arduino Micro basically is Arduino Leonardo, but smaller - 48mm x 18mm only (1.9" x 0.7"). Easy to use with breadboards (thanks to golpins).

• 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 (ATmega32u4) of which 4 KB used by bootloader
• SRAM 2.5 KB (ATmega32u4)
• EEPROM 1 KB (ATmega32u4)
• Clock Speed 16 MHz