Arduino Pro Mini ATMega328 3.3V Board

The Arduino Pro Mini ATMega328 3.3V Board is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six pin header can be connected to an FTDI cable to provide USB power and communication to the board.

The Arduino Pro Mini is intended for semi-permanent installation in objects or exhibitions. The board comes without pre-mounted headers, allowing the use of various types of connectors or direct soldering of wires. The pin layout is compatible with the ArduinoMini.

Please note that we currently sell two versions of this board, a 5V/16MHz version (HCARDU0059) as pictured above, and a 3.3V/8MHz version (HCARDU0081).

This product is manufactured by Deek-Robot and is derived from the SparkFun(TM) Pro Mini reference design which was released under the Creative commons Attribution-ShareAlike 3.0 licence.

Summary
Microcontroller: ATmega328
Operating Voltage: 3.3V
Input Voltage: 5 – 9.6 V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 6
DC Current per I/O Pin: 40 mA
Flash Memory: 32 KB (of which 2 KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 8MHz

The Arduino Pro Mini is manufactured by Deek-Robot, based on the SparkFun Pro Mini open-source design, released under the Creative Commons Attribution-ShareAlike 3.0 license.

This board comes without pre-soldered headers, giving users the flexibility to use custom connectors or direct wire soldering, making it a top choice for advanced makers, students, and professional developers.

🔗 Learn More: Official Arduino Pro Mini Documentation