I’m currently using a Panda II to read acceleration values from a ADXL335. This is working so far, but the analog readings deviate 10% or more each reading (without moving the accelerometer, I also checked the voltage with a multimeter and it stays absolutely the same).
I then connected An3 and An5 directly and used An3 to output 0-1023 and An5 to read the value. Here I also got about 10% deviance between the value I write and the one I read. So it seems to be a general problem.
With my Arduino Uno, I never had those problems.
Is this normal or is there anything I can do about it? Any help is appreciated