Posted on September 08, 2015 at 14:18Dear All,
I am writing a firmware that is supposed to detect if a body is moved for a certain time i.e. 3 seconds of continuous motion. I am using LIS3DH Accelerometer sensor. Here is the configuration registers values:
CTRL_REG1 = 0x2F //Enable all axes + ODR = 10 Hz
CTRL_REG2 = 0x00 //Default
CTRL_REG3 = 0x40 //Enable AO1 interrupt on INT1
CTRL_REG4 = 0xB0 //16G full scale
CTRL_REG5 = 0x00 //Default
CTRL_REG6 = 0x00 //Default
INT1_CFG = 0x7F //6D movement recognetion
INT1_THS = 0x02 //Note FS = 16G. (Sensitivity = 0.25G)
INT1_DURATION = 0x1E //0x1E = 30. Note ODR = 10 Hz. (Threshold = 3 Sec)
What I got is that if the body is moved for time
less than
3 seconds, the Accelerometer consider it as an event and interrupt the Micro-controller after 3 seconds. I think by this configurations it has to neglect such motions (which period is less than 3 seconds).
Any one can help me in detecting only motions which period is greater than 3 seconds?
Thanks in advance
#accelerometer #mems-accelerometer
