LSM6DS3 problem

[ice]

Posted on July 19, 2017 at 05:24

Hi, i am working with LSM6DS3 sensor, this is the first time i work with type of sensor. i am trying to read out gyro z data, but it very noise when sensor is immobile.Here is my log:

-120

-93

-127

-69

-79

-41

-85

-97

-72

-57

-85

-108

-59

-42

-58

-56

-66

-91

-73

-81

-64

-107

-60

-48

-77

-96

-80

-68

-57

-75

-71

-56

-64

-68

and here is my config:

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL1_XL, 0x61);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL2_G, 0x6c);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL3_C, 0x44);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL4_C, 0x02);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL5_C, 0x00);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL6_C, 0x00);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL7_G, 0x40);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL8_XL, 0x00);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL9_XL, 0x38);

LSM6DS3_WriteReg(LSM6DS3_REGISTER_CTRL10_C, 0x38);

Someone can give me advice? Sory for my bad eglish.

#lsm6ds3

[ice]

Posted on July 19, 2017 at 10:22

I try to caculate angle but it was drifted. here is my code

temp = LSM6DS3_ReadGyroZ();

if (calibration < 200) {

if (temp < GyroLowZ)

GyroLowZ = temp;

if (temp > GyroHighZ)

GyroHighZ = temp;

calibration++;

} else {

if (temp > GyroHighZ || temp < GyroLowZ) {

AngleZc = (float) (temp * k * dt);

} else {

AngleZc = 0;

}

AngleZ += AngleZc;

}

with k=0.07(scale= 2000dps), dt=0.0025.I had used an 

calibration  funtion with 200 times when start but it isnt effective.

[ice]

Posted on July 21, 2017 at 09:07

someone help me please!!!!!

[gg257]

did u found a solution for this issue? I have same problem.