About Promicro

ProMicro ATmega32U4 5V 16MHz Micro-USB Development Module Boot loader IDE with 2 Row pin Header Compatible with a-rduino Leonardo Microcontroller Board Replace ATmega328 Pro Mini 1. The ProMicro 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

How to use

• Connected to computer. (If this module cannot be recognized by your computer, please refer to this link to install the driver)
• Opened Ard IDE and loaded Blink sketch.
• Set board to Leonardo and selected the appropriate COM port (It showed up in the list already identified as a Leonardo).
• Connected an LED to pin 9 and modified the sketch accordingly.
• Hit upload and within a few seconds having a blinking LED.

Note:

If it can't be recognized by your computer when you use it, please change another USB cable or computers to test, if still no any update, may you need to install a driver , we made a detail tutorial, you can visit: youtu.be/9k5mk-FHF24 if still not solved it, please tell us. We can definitely help you to fix the problem .