strid3r21 / lis3dh

Minimalistic library for motion detection using low cost ST LIS3DH, 3-axis MEMS accelerometer, ultra-low-power that works

LIS3DH Motion detection

Minimalistic library for motion detection using low cost ST LIS3DH, 3-axis MEMS accelerometer, ultra-low-power, ±2g/±4g/±8g/±16g full scale, high-speed I2C digital output, embedded FIFO, high-performance acceleration sensor, LLGA 16 3x3x1.0 package

TODO

• Implement better debug handler
• Add Filter options
• Update Keywords

Low Power configuration

Operating mode	Turn-on time (ms)	@2g (mg/digit)
Low Power 8bits	1	16
Normal Mode 10bits	1.6	4
High Res 12bits	7/ODD	1

Current consumption of operating modes μA

Operating mode (HZ)	Low Power	Normal Mode	High Resolution
1	2	2	2
10	3	4	4
25	4	6	6
50	6	11	11
100	10	20	20
200	18	38	38
400	36	73	73
1344		185	185
1620	100

Interrupt Threshold

Interrupt threshold sensitivity is directly proportional to the Full Scale 2, 4, 8 or 16g chosen:

This value can be anything from 1 to 127

• 16 mg @ FS = ±2 g
• 32 mg @ FS = ±4 g
• 62 mg @ FS = ±8 g
• 186 mg @ FS = ±16 g

REG2 Filters

TODO

Credits

Inspired by SparkFun LIS3DH Arduino Library

Github Shields and Badges created with Shields.io