Approximately 20k lines of code later and now my 100% custom wallplotter can draw any complex shape in a continous motion. The optimisation was nessesary to have a constant color application when using csns with spray paint. #arduino #esp32 #maker #3dprinting #esp32 #art #diy #kicad #tech

Here is a WIP of my latest project, my E. Kalimba V3.0. It is a sandwich of two custom (hand solderable) PCBs, with 80 tactile buttons and lots of other stuff going on. Powered by an ESP32 controller, dual analog wave generators, battery powered, programmed with Arduino and everything open source.