Do you remember those levitating lamps that were all the rage some years ago? Floating light bulbs, globes, you name it.

Regular Christmas trees don’t emit light, nor do they react to music. If you want both things in a holiday decoration, consider this build from [dbmaking]. An ESP32-D1 mini runs the show here. It’s ...

Abstract: We report the monolithic realization of on-chip temperature sensing design using four transistors (4T) in gallium nitride (GaN) technology. The temperature sensor consists of a voltage ...