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ESP32 Differential amplifier pins P and N how to make it work

Posted: Wed Jul 12, 2017 7:24 pm
by electromania
I read that ESP32 has two pins named commonly as SENSOR_VP and SENSOR_VN or ( GPI36, SENSOR_VP, ADC_H, ADC1_CH0, RTC_GPIO0 & GPI39, SENSOR_VN, ADC1_CH3, ADC_H, RTC_GPIO3).

This looks it is a differential amplifier. But to to make it work in Arduino IDE or using Eclipse ?

How to adjust gain ?

Are there any examples available showing use of this preamp ?