Once you've gotten CircuitPython onto your CLUE or Circuit Playground Bluefruit (CPB) board, it's time to add some libraries. You can follow this guide page for the basics of downloading and transferring libraries to the board.
Libraries for Metal Detector for CLUE
From the library bundle you downloaded in that guide page, transfer the following libraries onto the CLUE board's /lib directory:
There are many libraries with similar names, take care on the selection.
Libraries for Metal Detector for Circuit Playground Bluefruit with TFT Gizmo
From the library bundle you downloaded in that guide page, transfer the following libraries onto the CPB board's /lib directory:
During development, the application was tested on a CLUE using CircuitPython 5.2.0 with libraries from the adafruit-circuitpython-bundle-5.x-mpy-20200501.zip bundle. It should work on subsequent versions, the latest version is recommended for the CLUE.
A small amount of testing was also performed on a Circuit Playground Bluefruit with a TFT Gizmo.