LIS2DH12 Reaction speed

[党靳.1]

I used the step counter of LIS2DH12 and MMA8542 to make a comparison. I found that LIS2DH12 is a bit slow. For example, we use a step machine to test the bracelet of MMA8542 in 8 hours. The test has more than 60,000 steps, while the number of steps tested by LIS2DH12 Only more than 48,000. During the test, we also found that the response is a bit slow. Our step counting algorithm is the same. May I change the parameters in that respect to make the response faster.

[党靳.1]

This is our code to read the data:

int MMA845X_Run(void)

{

#if TEST_WAKEUP

return 0;

#endif

uint16_t vector_filter;

uint8_t statusReg, timeout;

short accel_3d[3];

timeout=100;

do

{

statusReg = MMA845x_ReadReg(MMA845X_STATUS);

}

while(((statusReg & 0x08) != 0x08) && (timeout-- > 0x02));

if(0 != onMMA845xReadAccel(accel_3d))

{

return -1;

}

uint16_t vector_temp=(uint16_t)sqrt(accel_3d[0]*accel_3d[0]+accel_3d[1]*accel_3d[1]+accel_3d[2]*accel_3d[2]);

vector_filter = filter(vector_temp);

Algorithm_Step_Judge(vector_filter);

return 0;

}

[niccolò]

Hi @党军 �?�​ ,

do the 2 sensor have the same configuration?

odr, full scale, filters and so on, if you want the same response you should configure them the same way

Niccolò

[Eleon BORLINI]

Hi @党军 �?�​ ,

do you have any updates about this issue?

-Eleon