Coding For PIC 18f4520

[sudhag]

im using voltage value of my sensor as input to microcontroller pic18f4520.max level-311V to min value-100V..voltage value varies according to the person.. im trying to convert the voltage value to percentage. this percentage is the oxygen level of the person. send me the coding

 

[internetuser2k12]

Your 100v has to be represented as 0v dc and your 311v should be represented as 5v dc. I asked is the sensor o/p linear? Scale down your voltage to 0vdc to 5v dc.

Let us say, you min value 50V is equal to 0v dc and max value is 350 = 5v dc. send me the raw adc value that your sensor gives for min and max values. I will write the code.