TM7711 ADC for pressure sensors

Simple platformIO example to use the TM7711 ADC converter used in cheap pressure sensors.

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Hardware :

Module :

• Bridge : MPS20N0040D-S
• ADC : TM7711 www.titanmec.com/search?keywords=TM7711

Board:

• ESP32-C3 Mini

  

Connections :

• module GND - GND
• module VCC - 3v3
• module SCK - GPIO5 (esp32c3 pin 5)
• module OUT - GPIO4 (esp32c3 pin 4)

Getting started :

Download the folder, and open it in VSCode/PlatformIO

Calibration :

Please adapt the mapping from RAW values in TM7711.cpp Note that the pressure sensor can output negative values if pressure is negative.