SparkFun Pro Mini ATmega328 Development Board - 3.3V/8MHz Arduino Compatible For DIY Projects

About This Product

Electronics enthusiasts and makers, meet the SparkFun Pro Mini - your new favorite tiny development board! This compact Arduino-compatible board packs the powerful ATmega328 microcontroller running at 3.3V and 8MHz, making it perfect for projects where space is limited. Measuring just 0.7x1.3 inches (18x33mm), it's SparkFun's minimal approach to Arduino - no built-in USB connector or headers, so you can solder wires or connectors in any orientation your project needs. It features a 3.3V regulator with max 150mA output, over-current protection, and accepts DC input from 3.3V up to 12V via the RAW pin. You get 8 analog pins (A4-A7 are on the back), plus all the standard digital I/O. Programming requires an FTDI Basic Breakout (sold separately) since there's no onboard USB. The slower 8MHz speed compared to Uno's 16MHz is still plenty fast for most projects, and the 3.3V operation means it interfaces perfectly with popular sensors and modules without level shifting. Perfect for wearable tech, drones, robots, or any embedded project where you need Arduino functionality in a tiny package. Note: Connect power to RAW for unregulated input, not VCC. Get creative with this versatile little board!