Pro Micro USB ATMEGA32U4-AU Dev I/O Board 5V 16MHz Fit For Arduino Windows Linux

About this deal

The Pro Micro is a compact Arduino-compatible development board built around the ATMEGA32U4 microcontroller. The USB transceiver built into the 32U4 provides on-board USB connectivity without the need for a separate USB-to-serial chip. It includes 32KB of flash memory, 2.5KB of SRAM, and 1KB of EEPROM for program and data storage. The board offers 12 digital I/O pins, 5 PWM pins, and a 10-bit ADC, making it well suited to makers, hobbyists, and developers. Because the board uses the ATmega32U4's native USB interface, no additional driver is needed on modern Windows or Linux systems. It is particularly popular for USB-based projects such as custom keyboards, game controllers, and other HID devices. The chip comes pre-programmed with a bootloader, so you can upload new code without an external hardware programmer. In the Arduino IDE, select the Arduino Leonardo board profile to programme it correctly.