Quote Originally Posted by erice1984 View Post
AD Res 1024

Lowest voltage = .085v = 100psi = ADVal 18

Highest voltage = .999v = 10psi = ADVal 205

In order to switch everything around all I did differently was subtract my highest voltage (1volt) from lowest voltage (.085volt) and went from there!
Can you give the make and model or data sheet for the sensor?

Maybe show your code too.

If that voltage range is correct I would go with 8 bit resolution and a reference voltage. Are you really getting a lower reading with a higher pressure?