Arduino Pro Mini comes with unsoldered headers in a package. Arduino Pro Mini is very close to Arduino Mini board respect its features. However, Arduino Pro Mini has a different pin array than Mini board. It is not possible to use one instead of the other one.

Package content:

• Arduino Pro Mini ( 3.3V / 8 Mhz)
• Male Headers

Arduino Pro Mini is a microcontroller board based on Atmega328. There are 16 digital I/O pins (6 of them are PWM out), 8 analog input pins, a 16 MHz crystal oscilator and a reset button on the board. This board is designed for the places with very limited dimensions and to use it on a breadboard. Pro Mini has no a usb socket and programmer chip. To program this board it is possible to use USB-Serial Converter or any other usb-serial converters.

There are two different versions of Pro Mini board; 3.3 V / 8 Mhz and 5 V / 16 Mhz

Features:

• Microcontroller: ATmega328
• Operating voltage: 5 V or 3.3 V (Depends on the model.)
• Supply voltage (recommended): 5-12 V (3.3 V model) or 7-12 V (5 V model)
• Number of digital I/O pins: 14
• Number of PWM pins: 6
• Number of analog input pins: 8
• Max DC current for each I/O pins: 40 mA
• Flash memory: 32 kB (ATmega328, 0.5 kB is used by bootloader)
• SRAM: 2 kB (ATmega328)
• EEPROM: 1kB (ATmega328)
• Clock speed: 16 MHz (5 V model) or 8 MHz (3.3 V model)

Power pins are like that: