Hi! I am trying to understand the calibration status codes of BNO055. In the data sheet, p. 67, I can read out that there are four status code, SYS Calib Status, GYR Calib Status, ACC Calib Status and and MAG Calib Status. A value of 3 seems to be fully calibrated and 0 not calibrated. Specifically, I want to understand the relation between SYS Calib Status and the individual sensor's calibration statuses. I assumed that SYS Calib Status was a summary, but during testing I have observed the below cases: Mag: 3, Acc: 3, Gyr: 3, Sys: 2 Mag: 0, Acc: 0, Gyr: 3, Sys: 3 How can SYS Calib Status be 3 when there is a completely uncalibrated sensor, or less than 3 if all sensors are fully calibrated? I have tried to search for a longer description of SYS Calib Status, but have not found any.
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