The battery voltage is sensed using the ADC pin of the ESP32 and calibrated by averaging filtering and software(超详细注释,ADC电压检测)
VK3809IP&TTY6953: Multiple capacitive touch key slider ring chip,I2C interface.
C++ 5
Port the U8G2 display driver library (which includes all drivers, fonts, and function methods) to an ESP-IDF component and provide an example.
C 1