can you take the PCB board from green plastic shell, take a PHOTO of bottom PCB, i want to see pins.
check these point of signal , test whether have signal on these pins, input ------> ESP32 ADC pin.
diagram download: https://www.kincony.com/download/KC868-M...ematic.pdf
check these point of signal , test whether have signal on these pins, input ------> ESP32 ADC pin.
diagram download: https://www.kincony.com/download/KC868-M...ematic.pdf