Here is yet another properboy a.p.c. build, although I have done many with light controlled resistors, this is a first attempt at a solar powered synth.The plan was to create a small drone-unit that I could leave in my window. I wanted this little box to power up every morning and going to sleep at night. Wall-wart connection is included so it can still be played on cloudy days. PCB is by getlofi, solar cell from the shack (way overpriced), enclosure rescued from another project, some components recycled from busted electronics in my workshop.