hello guys
can anyone tell me how to calibrate FSR sensor?
cause right know my Force Sensitive Resistor (FSR) sensor have an error
my current connection is the FSR sensor connected to IC LM324 and am using +9v and -9v as the power input to the IC..
so when am plug in the power, the output from the IC is 0.002v some sort of , even there are no pressure apply to the FSR sensor
the question is how do i can eliminate the error (0.002v) in order to make it 0volt when there are no pressure apply at all?
if the calibration can be done in coding, how am supposed to do that?
thanks in advanced
hope the are answer from you guys 