I have buy PR22 and compass module, then I download source code from Cytron and all working well.. However in term of degree angle, there have some error, different between actual angle and reading angle is quite far, for example:
~ actual (0 - 90), reading (0 - 40)
~ actual (90 - 180), reading (40 - 100)
~ actual (180 - 270), reading (100 - 300)
~ actual (270 - 360), reading (300 - 360)
The reading is still complete in 360 deg, but sometime increase slow and sometime fast. When I pressed button for calibrate/offset, the value become more unstable. I have try for 2 compass module and both give the same result. Is there any idea to reduce this error?
Thank You
