I have MK3/4 controller and TNG software.
I would like to connect four SPST-NO momentary switches to four inputs on the MK3/4 board (IN1, IN2, IN3, IN4). Each switch would have its own function.
Switch 1 - Load program from a folder on the Desktop.
Switch 2 - Activate machine
Switch 3 - Homing (machine touches the home switches)
Switch 4 - Cycle start
One more requirement is that the machine wouldn't move until it is homed.