POV Fidget Spinner
When fidget spinners were popular in the spring of 2017 (at least that is when I saw them everywhere) I thought it would be fun to make one that used persistance of vision (POV) to display the RPM and other things. I started to do the programming in Arduino but found that the power consumption was more then it should be. I ended up writing the code in c using Netbeans IDE.
I deisgned a circuit and got some PCBs manufactured from OSHPark. Once my boards and parts were in, I laid down some solder paste and set the parts in place. I little time in the toaster oven and everything was soldered.