Hall sensor readings
Posted: Mon Jan 13, 2020 9:33 am
I have several ESP32-WROOM-32В. Vref of ADC is factory calibrated. hall_sensor_read () returns a value from -19 to +56 (depends of module ).
The question is why are the zero values (only Earth magnetic field) different on this modules?
What are the measurement units of hall_sensor_read (), zero bias and sensivity of hall sensor?
The question is why are the zero values (only Earth magnetic field) different on this modules?
What are the measurement units of hall_sensor_read (), zero bias and sensivity of hall sensor?