You are reading a single comment by @Robin and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Robin
Sat 2019.06.15
Untested but, have you looked into one of those rechargeable stakeable lawn lamps? They are about ~2" in diameter. Have no clue at what voltage the solar cell is, but the device only contains a single rechargeable AAA battery. This means maybe two would be needed or a voltage doubler circuit. Would contain all the parts needed for this project, but one would have to dismantle to find out. Sounds like fun!!