Can an Arduino be made to replace 5 momentary switches on another circuit board. For example a board that places diffrent sound clips depending on what momentary switch is pressed. Can I hook the leads of the witch into the Arduino and use the remote to mimic the action of the switch?
Without seeing a schematic or knowing anything about the circuit, relays driven by the Arduino are the safest way to go. A relay is an electrically controlled and electrically isolated switch, so there is no electrical connection between the Arduino and the unknown circuit.
Relays generally require a transistor or MOSFET driver circuit, and you can buy relay boards with multiple relays and drivers already installed.
For example a board that places diffrent sound clips depending on what momentary switch is pressed.
Usually, those inputs can be driven high or low directly by the Ardiino. But, don't try it if you don't have the specs. You could end-up frying the Arduino or the sound board.
kminetti:
Can an Arduino be made to replace 5 momentary switches on another circuit board. For example a board that places diffrent sound clips depending on what momentary switch is pressed. Can I hook the leads of the witch into the Arduino and use the remote to mimic the action of the switch?
If the switch only opens or closes a circuit on the other board and the other board is just 5v logic, you probably can just deliver 5volt from an Arduino pin. if you want to isolate it a bit, use a transistor, ever more, an opto, then to isolate it completely, use a relay. but, generally, circuit boards are pretty compatible , voltage wise.