Arduino Pro Mini Compatible ATmega328P Development Board, 3.3V, 8MHz

This ultra-compact development board runs an ATmega328 microcontroller at 3.3V and 8MHz, making it an ideal choice for lightweight, low-voltage embedded projects. Designed for experienced makers and hobbyists who require off-board USB programming and unpopulated headers, it allows full customisation of wiring and connector orientation. Its native 3.3V logic level lets you interface seamlessly with low-power sensors and modules without requiring external level-shifting circuitry.

Compact low-voltage architecture

Operating at 3.3V with an 8MHz bootloader, this board connects directly to 3.3V sensors, GPS units, and accelerometers without complex interface circuits. Its streamlined two-layer design uses surface-mount components to weigh under 2 grams, making it exceptionally portable.

Flexible wiring and connectivity

The module is supplied with unpopulated pin holes, allowing you to solder headers or wire connections in whichever orientation your build requires. It provides 14 digital input/output pins and 8 analogue inputs for extensive hardware interfacing.

Programming and power management

USB functionality is handled off-board, connecting directly to an FTDI Basic breakout for auto-reset support or via a compatible FTDI cable. The on-board 3.3V regulator supports DC inputs from 3.3V up to 12V, with built-in over-current and reverse polarity protection.

What is included

Includes one Pro Mini ATmega328P module.