Pro Mini Arduino compatible microcontroller
$7.00
14 Digital input / output ports
2 or 8 analog input ports
TTL level serial transceiver port RX / TX
6 PWM ports
Atmel Atmega168P microcontroller
supports serial download
Supports external 5V ~ 12V DC power supply
Support 9V battery-power
Clock frequency 16MHz
FREE shipping from China warehouse 10-22 days