Connecting 6 push buttons with ESP32 with 1 common pin

[StealthRT]

Hey all I have 6 buttons that have the following voltage:



I want to hook up a 4N25 to each one of these so I can use the ESP32 as a "virtual push" to each of these buttons. When the button is pressed the 3.2vdc goes to ground.



To minimize the amount of wire going to each one I have come up with the following:



Is it possible to just hook 1 of the buttons left/bottom pins to all of the 4N25 chips so that I dont have to run 2 wires per button? Or is there a better way of doing this that will minimize the amount of wires?

 

[StealthRT]

Would the AQW282S do fine since its an SSD Relay?

 

[Nigel Goodwin]

Would the AQW282S do fine since its an SSD Relay?

You could only try it and see, unlike a proper relay though it's not guaranteed to work.

You should be aware that SSD relays are very poorly named, they certainly have their uses, but as a 'relay' they are a very poor imitation of a real relay. Even worse, from recent posts on the forums, it's not uncommon for the SSD you receive to be entirely different internally to the datasheet.

 

[Pommie]

I've found the leakage current of SSDs to be very problematic.

Mike.

 

[For The Popcorn]

The datasheet for the TM1650 says there is 2k in series with the switch circuit so a little leakage current could be a big problem.