ESP32-S3 POC/Devboard ESP32-S3 based PoC board made to test step-down power supply design, 24v level shifter, crystal circuits and RF circuit IC List ESP32-S3Fx (main MCU) CP2102N (USB to UART) TPS5430 (step-down converter) AMS117 & XC6206 (3v3 LDOs) ULN2003A (transistor array) Top preview Preview 3d render