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Trivial example for motion module not working

sigge

This simple example return a zero-vector, ie. no values for for the gravity (returns (0.0, 0.0, 0.0)). Why?

Running on iPad Pro 2019.

import motion

def main():
    motion.start_updates()

    mf = motion.get_gravity()
    print(mf)

    motion.stop_updates()


if __name__ == '__main__':
    main() 
sigge

Insering a sleep for a few hundred ms seems to work. Resolved!