Hi, totally new to electronics.
I have am making a simple game controller mod soldering connections from a pcb to buttons. For example: **broken link removed**
However, I want add superbright led's/el wire to light up on button presses. These will be powered by 4AA batteries. They have to be on a seperate circuit (electronically isolated from the pcb circuit).
I know an optocoupler is an IC that couples two sides of the electrical world by a light beam, this way they avoid all chances of data or signal accident/interference.
Is there a cheaper alternative IC to an optocoupler that can do this (considering bulk)? I would like to know if a more expensive option exists too btw.
If there is no other solution can you tell me which optocouler would be best suited. I'm guessing a low current 4-pin optocoupler? Will a 6-pin work aswell (they seem more common and cheaper)? Also which resistor do you reccomend so that it doesn't short? **broken link removed**
I have am making a simple game controller mod soldering connections from a pcb to buttons. For example: **broken link removed**
However, I want add superbright led's/el wire to light up on button presses. These will be powered by 4AA batteries. They have to be on a seperate circuit (electronically isolated from the pcb circuit).
I know an optocoupler is an IC that couples two sides of the electrical world by a light beam, this way they avoid all chances of data or signal accident/interference.
Is there a cheaper alternative IC to an optocoupler that can do this (considering bulk)? I would like to know if a more expensive option exists too btw.
If there is no other solution can you tell me which optocouler would be best suited. I'm guessing a low current 4-pin optocoupler? Will a 6-pin work aswell (they seem more common and cheaper)? Also which resistor do you reccomend so that it doesn't short? **broken link removed**