The only thing on my door is a flashing light activated by switches top and bottom. The purpose of that flashing light is to indicate DONT BACK THE CAR OUT AS THE DOOR IS DROPPING. I want to now add the ability to notify, by buzzer or flashing light in the house, that the garage door is open.
I will add a magnetic wired or wireless door sensor device attached to your garage track. When door is up, sensor will be separated. It sends a notification to you. It can beep or light up another device in your house. The sensor device can be from $1.5 USD up from AliExpress.com. I have myQ device for years. When time it retired, I will convert with door sensor to signal me the door status. Good luck to you.
While I personally would over-engineer this with a distributed peer-to-peer Wifi network build with an ESP32 and a Rasberry Pi, all you actually need is a simple RF link.
Put a magnetic sensor with a wireless transmitter in the garage and a receiver with indicator in the house.
Many ways to approach this but here are a few ideas to get you started. What’s nice about these wireless sensors is they can talk to a “smart hub” in future when the home automation bug bites you. And it WILL bite you trust me.
No affiliated links… just random examples off the web.
Hi…In case you’re somewhat sure with (de-)welding and wouldn’t fret losing the guarantee, you can make the fibaro hand-off modules 12v worked rather than 230v.
Just the info feed however, the switch sources of info will remain 230v worked, so you can’t associate any changes to the module (except if they are 230v obviously)
The yields work fine and dandy and are/remain possible free.