gyroscope

I used three gyroscopes and one accelerometer to measure three axes in my electronic design. How should I calibrate the rotating table that rotates on three axes? According to my research, first, the IMU should be placed in the centre of the rotating table and left undisturbed for 1-8 hours...

I have a mini project I'm trying to accomplish using an arduino nano and an mpu-6050. What my code does is basically trying to find the speed of the racket on impact and perhaps the impact force on the ball. What I have at the moment is that it it detects the interval of the tennis stroke and...