ESP32-S3 Custom PCB – Schematic + PCB review requested I’m a beginner working on a project that uses scales to log a weight and if the weight changes then a buzzer sounds and a light flashes. I managed to prototype successfully on a breadboard, but since designing the custom PCB in KiCad it’s just not working at all. My hardware: MCU: ESP32-S3-WROOM-1 module Function: Reads load cells (HX711), drives LEDs + buzzer, simple display Power: Battery-powered (3.7V Li-ion via TP4056 + regulation) USB-C used for programming + power I’m not sure if the PCB powers (PSU is a 18650 battery, chargeable via USB-C). The ESP32 does not boot or enumerate over USB/no serial output is detected. I also can’t upload code via Arduino IDE. I think I’ve made a critical error by not adding a boot and IO button to the ESP32 module for testing. I’m not sure if there’s an incompatibility from the footprints designed on KiCad and the available components supplied by PCBWay.…