About this product
A Pro Micro development board based on the ATmega32U4 with native USB, running at 5 V and 16 MHz. It provides 12 digital I/O lines, five PWM-capable pins, nine 10-bit ADC channels, and a Micro-USB connector, and can implement USB serial or HID devices without a separate USB-to-UART bridge. A 3.3 V and 8 MHz version also exists and must be powered and configured differently.