Question about LSM303AGR resolution

daekeun · ‎2016-10-04

Posted on October 04, 2016 at 15:22

Hi.

I'm testing LSM303AGR. If I put my sensor module on the my desk, Z value of accelerometer's output is about 1400 LSB. I'm using high resolution mode(12bit) and 16g range. If I calculate this value as mg unit, the output value is calculated as 16,408mg. I expected the output value about 1000mg(Gravity), but the result is quite different. Could you give me some comment about the resolution of this sensor?

#lsm303agr #resolution.

ext-antti · ‎2017-03-16

Posted on March 16, 2017 at 15:38

Are you sure about those values? How do you calculate mg? What are the actual LSB and MSB register values?

16408 >> 4 would amount to 1025mg so something feels fishy here.