Pro Micro ATMEGA32U4 Arduino Pins and 5V, 3.3V Explained

Arduino Pro Micro

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Pro Micro ATMEGA32U4 Arduino Pins and 5V, 3.3V Explained

With ATmega32U4, running at 5V/16MHz. Supported under IDE v1.0.1. 12 x Digital I/Os (5 are PWM capable). Rx and Tx Hardware Serial Connections.

diymore Arduino Pro Micro 16MHz 5V with 2-Row Pins Header Module Board ATmega32U4 Module Board Micro USB Pro Micro Development Board Microcontroller

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What is Arduino Pro Micro: a Comprehensive Introduction for Novices