Package Included: 2 X Pro Mini ATmega328P 3.3V 8M Development Board with Pin Headers
Specifications:
DC input 3.3V up to 12V
3.3V regulator
8 analog input ports A0~ A7
6 PWM ports, D3, D5, D6, D9, D10, D11
Max 150mA output
Atmel Atmega328P-AU microcontroller
1 TTL level serial port transceiver port RX / TX
14 digital input / output ports RX, TX, D2~ D13
Size: Appro 33* 18mm
ATmega328 running at 8MHz with external resonator
(0.5% tolerance)