Adafruit METRO 328 with HeadersThe Adafruit METRO (with headers) is an Arduino UNO R3compatible ATmega328P board running at 16MHz with Optiboot pre installed. Power it via micro USB or 79V DC, with built in USB serial, debugging LEDs and full shield support. The Adafruit METRO Arduino Compatible (with headers) is a fully assembled and tested microcontroller board with through hole headers already fitted, ready to drop straight into your next project. The METRO works with the
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