Arduino Pro Micro ATmega32U4 Dev Board - Embedded Computing Design

While Arduino compatible programming-wise, this board isn?t actually made by Arduino, and can instead be found on SparkFun in both a 3.3V and 5V variants.

Epi 32U4 - An Arduino-compatible USB-C development board with ATmega32U4 MCU (Crowdfunding) - CNX Software

, Description:, Pro Micro ATmega32U4 5V/16MHz Module Board with 2 row pin header for arduino Leonardo Replace, 1. The Pro Micro is similar to

Arduino Micro Pro ATMEGA32U4 5V/16MHZ

NEW ATmega32U4 Pro Micro Controller Board for Arduino Pro Micro Type-C USB 5V

The Micro is a microcontroller board based on the ATmega32U4, developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.

Arduino 5V Micro with Headers

Atmega32U4 Customize Mini-development Board

Arduino Pro Micro ATmega32U4 Dev Board - Embedded Computing Design

Pro Micro - 5V/16MHz - DEV-12640 - SparkFun Electronics

SparkFun 12640 Pro Micro - 5V/16MHz

ATmega32U4 running at 5V/16MHz Supported by IDE v1.0.1 Rx and Tx Hardware Serial Connection 4 x 10-bit ADC pins, 12 x Digital I/Os On-Board Type-C

AITRIP 2PCS Pro Micro ATmega32U4 5V 16MHz Type-C Development Module Board with 2 Row pin Header Compatible arduino Leonardo Replace ATmega328 Pro Mini

I made these little controller boards for CircuitPython that are compatible with an Arduino Pro Micro footprint. : r/electronics

NEW ATmega32U4 Pro Micro Controller Board for Arduino Pro Micro Type-C USB 5V