I have the following remote which I want to automate with ESP32.
Basically I need to bridge J3 with J1 or J3 with J2 or nothing.
I was thinking it can be done with two relays (just need to make sure one is closed before opening another one). Still it feels like an overkill are there better ways?
Small DIP relays will work fine.
This style is great.
A transistor is used to energize the coil.
An Opto FET might work too.
We need to see the schematic of your simple PCB switch board and to see if anything else is connected to it.
This is called "make before break" to ensure no open state.
Can you eliminate the physical buttons and use the ESP as the buttons? Are the voltage levels the buttons are passing 3v3?
The idea is to de-solder the buttons and just use those three leads with a two channel relay module.
I'm not sure what the voltage is or how to even measure it but here is the board itself:
The connector is RJ45 style (J12, J8 on the board)
Stick with @LarryD and relays... post a schematic or drawing for best results.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.
