I have a problem with setting LIS3DH module to detect movement.
To be more precise, I want the device to set the INT1 pin down when the it experiences 32mg acceleration change for 0.5 second.
Here are my settings:
CTRL_REG1 = 0x20 //10Hz, normal power mode, ZXY enable
CTRL_REG2 = 0x00 //no HP filters
CTRL_REG3 = 0x40 //IA1 enable
CTRL_REG4 = 0x10 //scale 4g
CTRL_REG5 = 0x08 //interrupt 1 pin latched
INT1_THS = 0x01 //32mg threshold
INT1_DURATION = 0x05 // 0.5s to activate interrupt
INT1_CFG = 0x7F //6D direction mode enabled, all directions enabled
Now, when I read INT1_SRC register it always shows 0x00 and INT1 pin never goes down...
Funny thing is that when I set INT1_THS to at least 0x0A it works but it is too much for me!
Could soemone help me with this case?