When attempting to reproduce the MagX Demo, although the environment setup and sensor data collection were successfully completed, the calibration results did not display correctly, and the positioning program failed to accurately locate the magnetic ball.

Dear Professor Chen,

I'm very interested in your MagX Demo and believe it has significant practical value. We're attempting to replicate the work from the related paper. We've successfully completed the environment setup, device search, and sensor data collection as per the Readme. These steps went smoothly, but we're encountering issues during the calibration process:

1.No Display After Calibration: After calibrating the magnetometer as described in the paper, the results are unsatisfactory. The left plot shows the scatter plot of the magnetometer measurements before and after calibration from the paper, while the right plot shows our results. We noticed significant deviations in both pre- and post-calibration results, and the post-calibration scatter plot doesn't display at all. 2.Visualization Issue in real_time_pos.py: When executing real_time_pos.py, the visualization only shows eight sensors without locating the magnet ball's position. We've successfully found the device using Codes/read_raw_ble/find_device.py and received data from eight sensors using Codes/read_raw_ble/read_sensor.py.

The readings change as the magnet ball approaches the sensors. However, Codes/optimization/real_time_pos.py only displays the eight sensors and fails to locate the magnet ball.

Could you provide guidance or suggestions to help us resolve these issues?

Thank you for your assistance!

Duan Yu PhD Student, Xidian University

dychen24 / magx

When attempting to reproduce the MagX Demo, although the environment setup and sensor data collection were successfully completed, the calibration results did not display correctly, and the positioning program failed to accurately locate the magnetic ball. #5