Audio Level Meter with RISC-V CH32V003

I show how I made an audio level indicator for my synth project. It replaces LM3915 with improvements while using a minimal number of components. The display consists of 20 orange LEDs. The microcontroller is a mighty RISC-V based CH32V003J4M6 in a tiny 8-pin package. https://github.com/svofski/lepetomane-ringard/tree/master/wch-ch32v003/pio-arduino-ch32v003 #ch32v003 #arduino #electronics #synthdiy