windyhills
- Feb 22, 2023
- 1
- Joined
- Feb 22, 2023
- Messages
- 1
Hello there. I am very noob in this so I need a bit more help.
I have a 50ohm 0.5W speaker inside my apartment intercom device. That speaker connected to the intercom's board with two wires: red and black. The intercom device itself is pretty basic, only two external wires are connected to it.
I want to insert a switch so that I can turn on/off speaker. My idea is to cut the red wire, insert a relay and then control that relay with NodeMCU.
Now, I have NodeMCU and Omron G5V-1 (5VDC). How can I wire up those 3 things to turn on/off the speaker?
I made a "schematic" so if someone could draw wires on top of this image?

Note: please do not make professional schematics, I can't read those. Just draw lines in paint (like I did
)
Thank you very much.
I have a 50ohm 0.5W speaker inside my apartment intercom device. That speaker connected to the intercom's board with two wires: red and black. The intercom device itself is pretty basic, only two external wires are connected to it.
I want to insert a switch so that I can turn on/off speaker. My idea is to cut the red wire, insert a relay and then control that relay with NodeMCU.
Now, I have NodeMCU and Omron G5V-1 (5VDC). How can I wire up those 3 things to turn on/off the speaker?
I made a "schematic" so if someone could draw wires on top of this image?

Note: please do not make professional schematics, I can't read those. Just draw lines in paint (like I did
Thank you very much.