Inside is Arduino Pro Micro and a PMW 3389 optical sensor on a breakout board. ... It may not be very accurate for detailed PCB layout work, but for moving around in a 3D view, ...

Finally, you'll also need an Arduino Pro Micro, either the 5V version or the 3.3V one, I personally went with the 5V version a 10K resistor (Note that this might vary depending on the contact ...

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 ...

Two custom Nixie driver boards are each host to an Arduino Pro Micro, and [Tavis] has made the PCB design available for those wishing to build their own Nixie projects.