Pro Micro (Micro-USB) - 5V/16MHz - Arduino-compatible ATmega32U4

Spice up your DIY keyboard builds with this little microcontroller, which works with the TMK and QMK firmware. It's got 18 pins for you to work with.

CANADUINO Atmega32u4 Pro Micro - 5V 16MHz - Compatible with Arduino IDE : Electronics

Pro Micro - USB-C - 5V/16MHz - ATmega32U4 - SparkFun DEV-15795 Botland - Robotic Shop

Pro Micro ATmega32U4 5V 16MHz Replaces ATmega328 Pro Mini Arduino-Compatible

MICRO/MINI/TYPE-C USB ATMEGA32U4 Module 5V 16MHz Board For Arduino

Supported by Arduino IDE V1.0.1. Micro USB/ Type-C interface programming (optional). Pin header X2.

Pro Micro ATmega32U4 Board 5V 16MHz Compatible with Arduino Pro Micro ATmega32U4

Pro micro atmega32u4 5V/16MHz Development board microcontroller with bootloader IDE and USB C

Pro Micro ATmega32U4 5V/16MHz Mini MCU Leonardo Micro USB - BEEMONG TECHNOLOGY

Pro Micro (Micro-USB) - 5V/16MHz - Arduino-compatible ATmega32U4 – Keebio

Arduino Pro Micro ATmega32U4-AU 5V/16MHz Module with Type-C USB

ATMega 32U4 running at 5V/16MHz Supported under Ard-uino IDE v1.0.1 On-Board micro-USB connector for programming 4 x 10-bit ADC pins 12 x Digital I/Os p Note:When you open the Ard-uino IDE software, pls go to the Tool and choose the board Ard-uino Leonardo - 1. The Pro Micro is similar to the Pro mini except with a ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on board and do away with bulky external USB interface - 2.