The Arduino Pro Micro 8Mhz is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface.
- ATMega 32U4 running at 3.3V/8MHz.
- Supported under Arduino IDE v1.0.1
- On-Board micro-USB connector for programming
- 4 x 10-bit ADC pins.
- 12 x Digital I/Os (5 are PWM capable).
- Rx and Tx Hardware Serial Connections.