I am using the MEM ICM-42670-P in a wearable device. When comparing the step counting functionality, I noticed that the measured number of steps is significantly lower compared to other wearables on the market (e.g., Apple Watch, Huawei Watch).
Specifically, in a real measurement of 100 steps, the ICM-42670-P counted 75 steps, while the Apple Watch counted 106, and the Huawei Watch counted 110. All the parameters of the Pedometer are set to their default values as recommended by the datasheet.
Could you please suggest a combination of parameters for the Pedometer to increase the accuracy of the step counter?
Thank you very much in advance.
Hi,
A production pedometer like apple watch has a much more sophisticated algorithms to tune the IMU and have a reliable result. Our example algorithm is just a showcase of the implementation of pedometer. It is up to user to develop an optimized pedometer algorithm.