Pressure sensor reading w/Controllino MAXI Automation

[dlee-upt]

Hello Controllino world,

I have been experimenting around with sensors and the Controllino Maxi Automation and I came across using a pressure sensor. Now I was able to hook everything up and write a simple Arduino code to get the reading of the pressure sensor but now I need help on converting the analog input I am reading into a pressure value (psi, torr, kPa). Could anyone help me or point me to the right direction?

My code is below:

#include <Controllino.h>

const int pressureInput = CONTROLLINO_AI11;

const double pressureZero = 82.0;

const double pressureMax = 921.6;

const int pressureTransducerMaxPSI = 100000;

const int baudRate = 9600;

const int sensorReadDelay = 250;

float pressureValue = 0;

void setup() {

Serial.begin(baudRate);

pinMode(pressureInput, INPUT);

}

void loop() {

pressureValue = analogRead(pressureInput);

//pressureValue = ((pressureValue-pressureZero)*pressureTransducerMaxPSI)/(pressureMax-pressureZero);

Serial.print(“pressure value: “);

Serial.println(pressureValue, 1);

delay(sensorReadDelay);

}

• This discussion was modified 3 years, 2 months ago by  dlee-upt.

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