New using Arduino, checking Map sensor

Projects General Guidance
1

Hi there! i'd like to know how to test it a GM Map sensor 12223861 i got with arduino.

I tried this and works:

but i'd like to convert values (i dont know what values is showing..right now is showing 214/216), i was wondering how to convert these value to Kpa and Psi if possible.

here some info about sensor.

1060×649 78.8 KB

400×629 25.5 KB

400×629 25.5 KB

Thanks in advance!.

2

If your Arduino is 5volt, the analog reading you have corresponds to 5 * 214 / 1024 volts which is just over 1 volt. There is a formula in the table you supplied to convert volts to pressure units.

3

thanks! do you can help me out to make the code please? Thanks again!

4

Maybe like this assuming the sensor is connected to A0:

float pressure = ( analogRead( A0 ) * 5.0 / ( 1024.0 * 0.0162 ) ) + 0.0179 ;
Serial.println( pressure) ;
5

Thank you a lot!!!!! i will learn more about this. Thanks!