Bed level tramming using slide potentiometer

My take on bed level tramming. Using a variable slide potentiometer and a suitable Arduino I was able to display all 4 corner bed height readings on a 0.9" OLED display. See video below.

https://www.youtube.com/watch?v=igpE1Km8cso

Update I found a slide pot with less friction so a spring return could be used so have included a bracket which can be clamped to the stepper and easily removed. If using this then glue the slide pot to the side of the bracket such that the stylus is below the nozzle by a few mm. Also I printed a guide that screws onto the bottom screw hole of the slide pot and supports keeps the stylus straight when moving. If your printer has bed tramming on the menu and you are familiar with Marlin 2 config.h compiling then you can alter the positions of the stylus on the bed here are mine and I commented out the centre test.

#define LEVEL_BED_CORNERS

#if ENABLED(LEVEL_BED_CORNERS)
#define LEVEL_CORNERS_INSET_LFRB { 0, 60, 40, 0 } // (mm) Left, Front