At the heart of this build is an Arduino Pro Micro and 20 of the loudest key switches ever made — Cherry MX blues. ... Built by [jangxx], this little board is about as simple as it gets.

PD Micro is the first Arduino-compatible board with USB Type-C Power Delivery, which allows your project to make use of voltages from 5-20 V. It’s ...

PD Micro is the first Arduino-compatible board with USB Type-C Power Delivery, which allows your project to make use of voltages from 5-20 V. It’s ...

Update April 2022: also works on clone of SparkFun Pro Micro (except no LED-BUILTIN is fitted) End Update. Here is ‘blink’ modified to work TXLED and RXLED as well as LED-BUILTIN. int RXLED = 17; // ...

Inside is Arduino Pro Micro and a PMW 3389 optical sensor on a breakout board. [Ben] was going to use flexible 3D printed panels as mouse buttons, but then had an epiphany — why not use keyboard ...