This is a build log of my DIY Load Cell pedal controller for 3 load cells.
Arduino Pro Micro used with the Joystick library found here:
https://github.com/MHeironimus/ArduinoJoystickLibrary
The PCB board traces are printed on a glossy magazine sheet by a HP LaserJet printer. The drawing and wiring description is here:
https://www.dropbox.com/s/eozvfxt3c9m0kdv/pedal_board_wiring.pdf?dl=1
Arduino sketch here:
https://www.dropbox.com/s/szw3wyjjlp0burx/Joystick_Test.zip?dl=1