I2C Clock speed change on Photon

Im trying to work out I2C on the Photon, it appears the CLOCK_SPEED_400KHZ isn’t defined

Any ideas how to set the clock speed to 400khz? cant seem to read DMP data fast enough from a MPU6050

This will be fixed in the next release - the release is ready we are just waiting for some other supporting infrastructure to be ready.

For now, please add

#include "i2c_hal.h" 

to the top of your sketch.

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Thanks, i think that did the trick!

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