I'm making this circuit:
I've bought an Omron G5LA-1 non-latching SPDT relay. It looks like this (from the datasheet):
I'm struggling to figure out how I wire this up though. I believe I need to ignore a pin, but I'm not sure which. I also don't know what gets wired to which pin.
I have the circuit wired up with the power, tumbler switch, and capacitor so far.
The keyboard just looks something like this, where 2 of the 26 contacts would be connected:
Any guidance with figuring out what goes to which pin is much appreciated!