A small competitor of Arduino, a module with a microcontroller from the ATtiny family. It will find its application in compact projects that do not require many pins. It has a bootloader on the Micro USB port. This device is compatible with Arduino and it is possible to program it from the Arduino environment. Technical data Power supply 5V or 7V to 25V 6 I / O ports LEDs indicating the power supply and the status of the PB1 port - pin 6 of the processor The module is compatible with Arduino IDE 1.0+ for Windows, OSX and Linux Built-in 5V 500mA stabilizer The board is made on a 2mm PCB Leads in through technology, 2.54mm pitch, on the perimeter of the module PCB size without USB plug: 17.5 mm x 19 mm Useful links Instructables.com - Descriptions, bootloader upload etc. https://elecena.pl/product/22624295/attiny85-mini-micro-usb-module-compatible-with-arduino-avr-digispark-avr-control-module 2023-02-23 https://elecena.pl/product/22624295/attiny85-mini-micro-usb-module-compatible-with-arduino-avr-digispark-avr-control-module 2025-10-28