Problems with LIS2H12TR accelerometer
hello everyone:
I encountered an issue with inaccurate readings when using the LIS2HH12TR Please take a look.
First of all, my application scenario: installed on a device, FPGA reads the current position through IIC at all times, without any sudden vibration or interruption
My testing environment: I installed the board with an accelerometer on a three-axis platform. Firstly, it was horizontal, and the X reading was 0.1 °. Then, the three-axis platform rotated thirty degrees around the X axis (with an accuracy of 0.01 °), and the reading angle was 30.1 °. But after being powered on and off again at this position, the reading angle is 31.1 degrees.
My question is, every time I power on or off again, the angle read is normal. Why does the angle deviate as the turntable rotates.
Exclude a few issues: 1. The turntable rotates very slowly, and the stopped reading also takes a long time to eliminate the impact caused by the acceleration of the turntable;
2. I also use mean filtering in the program, so there should be no deviation
3.There is no problem converting acceleration to angle formula
PS：My accelerometer configuration (1) CTRL1=3Fh (XYZ enabled, ODR100Hz)
（2）CTRL4_ DATA=8'h00; That's enough.