Reverse Engineer DIN 5-pin connector
How would you approach this?


I would get an oscilloscope and check to see if there were analog or digital signals. I would then find out what the voltage range of those signals are. I would check to see if the signals were periodic. Then I would push the foot switch and observe the change of the signals.

An easier thing would be to pull apart the foot switch to see if there is a microprocessor or only switches and passive devices, and then reverse engineer a schematic to see what the functionality is.