The ultimate embeddable Arduino for 3.3V projects. The Pro Mini strips away the USB port to give you a tiny, low-cost 3.3V/8MHz board ideal for battery-powered applications and sensors.
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Supplier Link: [SparkFun MPN:11114]
It's thin! It's blue! It's the Arduino Pro Mini! This is SparkFun’s unique take on the Arduino architecture, stripping away everything but the essentials to create a board that is small, affordable, and perfect for permanent installation. This version runs at 3.3V and 8MHz, making it the ideal choice for battery-powered applications or for interfacing directly with modern 3.3V sensors without the need for logic level shifters.
We call it the "Pro" series for a reason. To minimise cost and profile, this board does not come with pre-populated connectors. This allows you to solder wires directly to the board or add your own headers in any orientation your project requires.
To keep the board as small as possible, we removed the USB circuitry. Instead, the Pro Mini is designed to connect directly to the FTDI Basic Breakout board for programming.
As a little pro tip, if you're supplying unregulated power (like a 9V battery), connect to the "RAW" pin. However, if you're supplying regulated 3.3V, connect directly to VCC.
Instead of thinking of the Pro Mini as just a shrunk-down Uno, think of it as an optimised tool! The latest open-source version of the board features:
Supporting the Ecosystem: A portion of every sale is given back to Arduino LLC to help fund the continued development of new tools and the Arduino IDE.
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