Accelerometer readings
Posted: Thu Feb 04, 2021 8:12 pm
I am trying to program the microbit to measure g by having one act as a falling object and another to log the data. I have got the two of them communicating and got data, but I don't understand the values. Why when my microbit is stationary do i get a z reading of approx -1g? Surely when stationary the acceleration is 0? If the -1000 represents the force due to gravity, why does it go up to a positive value when falling? My expectation was that either it would start at 0 and go to +980 ish whilst falling, or start at +980 ish and then fall to 0 in freefall, but neither seems the case
If anyone can help me with how the accelerometer readings actually work then i would appreciate it
If anyone can help me with how the accelerometer readings actually work then i would appreciate it