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The Pro Mini is a microcontroller board based on the ATmega328 for . With 14 digital input / output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. Six pin header can be connected to an FTDI cable to provide USB power and communication to the board.
Using Atmega328P-AU MCU
TTL level serial port transceiver RX / TX
Six PWM ports D3, D5, D6, D9, D10, D11
Supporting serial download
Supporting external DC 2.4V ~ 12V power
Supporting 12V (or below) battery power
Operating Voltage: 3.3V
Input Voltage: 3.35V ~ 12V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 8
DC Current Per I/O Pin: 40mA
Flash Memory: 32KB (of which 2KB used by bootloader)
Clock Speed: 8MHz
Size: 33.3 x 17.6mm
3 x 3.3V 8MHz Pro Mini(With Pins)