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.