DESCRIPTION
Add motion, direction and orientation sensing to your Arduino project with this all-in-one 9-DOF
sensor. Inside the chip are three sensors, one is a classic 3-axis accelerometer, which can tell
you which direction is down towards the Earth (by measuring gravity) or how fast the board is
accelerating in 3D space. The other is a 3-axis magnetometer that can sense where the
strongest magnetic force is coming from, generally used to detect magnetic north. The third is a
3-axis gyroscope that can measure spin and twist. By combining this data you can REALLY
orient yourself.
We've carried the LSM9DS0 from ST for a while, and the LSM9DS1 is their latest offering. We
thought this could really make for a great breakout, at a very nice price! Design your own
activity or motion tracker with all the data... We spun up a breakout board that has all the extra
circuitry you'll want, for use with an Arduino (or other microcontroller).
The LSM9DS1 is not the same set of sensors as the LSM9DS0. Here are some of the
differences:
LSM9DS0 accelerometer has ±2/±4/±6/±8/±16
g
ranges. The LSM9DS1 has ±2/±4/±8/±16
g
(no ±6
g
range).
LSM9DS0 magnetometer has ±2/±4/±8/±12 gauss ranges. The LSM9DS1 has ±4/±8/±12/±16
gauss ranges. So the LSM9DS0 has ±2 gauss low range where-as the LSM9DS1 has ±16
gauss high range.
LSM9DS0 and LSM9DS1 gyros
both
have the same ±245/±500/±2000 dps ranges.
There are other differences, for example we noticed the LSM9DS1 has slightly worse accuracy.
The gyro angular zero-rate (±25 for the LSM9DS0 and ±30 for the LSM9DS1 at the highest
sensing range). The accelerometer offset accuracy is ±90 m
g
for the LSM9DS1 and ±60 m
g
for
the LSM9DS0.