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sparkfun / SparkFun_MPU-9250-DMP_Arduino_Library

Arduino library for the MPU-9250 enabling its digital motion process (DMP) features.
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Unsufficient I2C baud-rate #12

Open hbob opened 7 years ago

hbob commented 7 years ago

The baud-rate between the MPU9250 and the microcontroller is not specified explicitly. When trying to sample the DMP at 200 Hz, this caused some drops in the gyroscope readings, which in turn also affected the angle computation. And therefore my balancing controller was unstable Adding the line: Wire.setClock(400000); after Wire.begin(); in the inv_error_t MPU9250_DMP::begin(void) function resolved all issues.

shirish47 commented 6 years ago

this also helps to sample at higher rate like 1000Hz @hbob thank you