BLTouch
Arduino test scripts
- https://github.com/chepo92/3DtouchTestSimple/blob/master/3DtouchTest/3DtouchTest.ino
- https://github.com/OneSharpChisel/BLTouch-Tester/blob/master/BLTouch_Tester_v1.0.ino
- https://forum.arduino.cc/t/arduino-sketch-tests-a-3d-printer-tl-touch-auto-leveling-sensor/527949
- https://github.com/JimBrown/MarlinTarantula/wiki/How-to-test-the-BLTouch-Z-probe