It should be bridged for 5V Pro Micro. Without the solder bridge cheap Pro Micro spit out only 4.6V instead of 5V at both VCC and RAW pin in my test. This is due to forward voltage drop of protection ...

In this tutorial, we are going to build a handheld game console using Arduino Pro Micro, Arduboy package, and a handful of hardware. For those who don’t know, Arduboy is an 8-bit, credit-card-sized ...

Arduino support is mainly targeting DIY projects. If you want a more integrated alternative using ATMEGA32U4 (with pictures, simhub device format) device please look ...