Decoding Thingy Motion Raw data characteristic from Thingy 52

[julienS]

Hello,

I am searching the way of decoding the  motion raw data from thingy 52.

Especially, for the accelerometer values.

In the app, I get the next value:

FAFF for accelerometer axis X

F4FF for accelerometer axis Y

F603 for accelerometer axis Z

My thingy was on a table so normaly  I have to get 0g for X/Y axis and 1 or -1g for Y axis.

I thought data were encoding in A2 complement but I don't get correct values.

Is anybody know how to convert the raw data to data in g?

Thanks,

Julien

[Bjørn Kvaale]

I know the Thingy:52 FW code for Android & iOS shows the gravity vector in m/s2 (go to Motion tab & then look at the "Gravity Vector" graph). I believe this data is received from the gravity vector characteristic (see link). Once you figure out how the characteristic value is represented, you could easily convert m/s2 to g by dividing the value on each axis by 9.8.