The Pro-Micro is a high quality, Arduino compatible microcontroller, which is equipped with the original chip. It impresses with a very good price/performance ratio and its small design. Product features - Model: ATMega32U4 - OnBoard USB interface for power supply and programming - dimensions (L x W x H): 36.6 x 18.4 x 4 mm Technical specifications - supply voltage: 5 - 11 V - operating voltage: 5 V - logic level: 5 V - number of IO pins: 18 - analog: 9 - PWM: 5 - Clock frequency: 16 MHz - Flash memory: 32 KB - EEPROM: 1 KB - SRAM: 2.5 KB https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2022-07-26 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2022-10-22 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2023-09-06 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2024-03-14 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2024-06-30 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2025-02-08 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2025-04-30 https://elecena.pl/product/21327951/ard-pro-micro-arduino-compatible-micro-pro-board-atmega32u4-usb 2026-02-20