The MT6701 is an easy to program magnetic rotary position sensor with a high-resolution 12-bit analog, PWM, UVW, ABZ. With SPI and I2C output is 14 bit. They should provide magnetic button ...

ESP31B SDK based on FreeRTOS. For ESP32 please see http://github.com/espressif/esp-idf - espressif/ESP31_RTOS_SDK ...