Hey ppl!!
I am exploring PIC controllers and trying to figure out how to get rid of the non linearity issues in the ADC of PIC 18F4620.
My set up goes this way....
I am using a supply of 12V nd bringing it down to 4v using a voltage divider circuit. This goes to the non inverting pin of LM324 such that I get the same applied voltage at its output. This is then passed on to the channel 0 (AN0/pin 2) of the PIC. I am displaying this voltage reading onto the LCD. I need to read it correctly upto 3 decimal places.
Though I achieved it considerably through software. I would really like to know if there is a hardware solution to this?
Pls do let me know.
Thanks!
I am exploring PIC controllers and trying to figure out how to get rid of the non linearity issues in the ADC of PIC 18F4620.
My set up goes this way....
I am using a supply of 12V nd bringing it down to 4v using a voltage divider circuit. This goes to the non inverting pin of LM324 such that I get the same applied voltage at its output. This is then passed on to the channel 0 (AN0/pin 2) of the PIC. I am displaying this voltage reading onto the LCD. I need to read it correctly upto 3 decimal places.
Though I achieved it considerably through software. I would really like to know if there is a hardware solution to this?
Pls do let me know.
Thanks!