Several electronic devices that I have built. Some claim that these devices might help "medical" conditions. Also included are some devices that I built just for the fun of it.

Many projects for your Arduino that use LED's, such as quiz machine, wheel of prizes, LED arrays, and others

How to build your own CNC machine and some accessories. There are lots of variables to choose from.

How to make several LED based projects including a 4x4x5 LED cube for your Raspberry Pi.

Audio, Video and Lighting Setup, Operation and Repair

How to interface several LCD's to a Raspberry Pi using only Python.