Total newbie here to both electronics and Ardy, so any search keywords will help a lot.
On a basic level how can I have a on/off switch with a built-in LED be controlled manually via the switch and electronically via Ard, in the sense that if I hit the switch on I can turn it off via Arduino, and vise-versa.
While the switch is on there is the LED circuit that picks up the state and powers the LED on the button.
Is it just easier to have a momentary switch that when pressed Arduino could pick up the HIGH/LOW state, so that it changes the LED on/off and the actual switch applications (when a state has been changed, check the current value and switch it to the opposite)?
In the case of the second, I'll need to re-think the switch design that suits as they're only available in 6v or 12v, unless there is an easier way than having a control solid state relay just for a LED.
These buttons will control via a hardware software layer, that then controls solid state relays and finally the application. e.g Button press -> Ardunio pickup -> Software change -> Breakout board change -> SSR -> Device on/off
Thanks in advance for any help.