I am working on the LIS2DH12 chip for accelerometer and temperature readings.
I am facing an issue with the temperature readings. Please find below the steps for reading the temperature value.
Sensor Initialization for Temperature :
1. Initialization of the temperature sensor: TEMP_CFG_REG to 11
2. CTRL_REG4 BDU bit set to 1
Reading the temperature :
3. Reading the OUT_TEMP_L (0Ch), OUT_TEMP_H (0Dh)
4. int16_t temp_Raw = ((int16_t)OUT_TEMP_H[2]<<8) | OUT_TEMP_L[1];
5. float temp_celcious =lis2dh12_from_lsb_nm_to_celsius(temp_Raw);
float_t lis2dh12_from_lsb_nm_to_celsius(int16_t lsb)
{
return (((float_t)lsb / 64.0f) / 4.0f) + 25.0f;
}
6. As per calculation, I am getting temperature as 35,36,37 on one device and another device 401,42,43 which is not correct. Our ambient temperature is 22 to 23 C.
pls, help to get correct temperature readings.
