Ideas for Areas to Explore

  • Vary the coil size and windings to see how this affects the sensitivity.
  • Improve the magnetometer value as it currently only makes use of the z dimension.
  • Add a recent peak feature to the voltage bar graph and magnetometer circle.
  • If you are using the CPB without a screen:
    • Add some audio cues as time passes when the left button is depressed to give an indication of the current menu option.
    • Conditionally disable the screen update code for a faster main loop or for better voltage stability from increased sampling. The TFT Gizmo screen is not designed to be detectable but the approach outlined in Adafruit Forums: Is it possible to detect presence of Gizmo? is likely to work.

Related Projects

Further Reading

This guide was first published on May 13, 2020. It was last updated on May 22, 2024.

This page (Going Further) was last updated on Mar 08, 2024.

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