“This article will explore the hardware design of Starfish, a control board for a pick and place machine built around the Raspberry Pi RP2040 microcontroller and Trinamic TMC2209 motor drivers.
This control board shares some similarities with 3D printer control boards but it has some unique problems to solve- including controling solenoids and talking to vacuum sensors. I’ll take you through the background, schematics, and layout, along with the decisions made. Starfish is open source, so you can check out the original source files on GitHub.”