No electronics experience here, so hopefully someone can help. Large well insulated home currently has doorbell (just the doorbell switch at the front door) that when pressed connects 12VDC to a truck horn (there is currently no 24AC transformer or other typical doorbell components as part of the setup). Home owner has a Ring doorbell that they would like to install, but when the button on the Ring doorbell is pressed, they want it to cause the 12VDC truck horn to sound for some specified period of time (e.g., 3 seconds, 5 seconds, etc.). I don't know how many amps at 12VDC the truck horns draw, but suspect it is a few. I have purchased a doorbell transformer so that it can be connected to the Ring doorbell and supply the 8-24V AC to keep it charged. Originally purchased FC-32 relay thinking it might help, but doesn't appear to be the right relay for what I'm trying to do. Also purchased a wirewound resistor based on article at
https://support.ring.com/hc/en-us/a...-Transformer-Without-a-Pre-existing-Doorbell- so that Ring doorbell could be charged by doorbell transformer without having other doorbell components.
What I'm struggling with is how to get the press of the button on the Ring doorbell 12-24VAC to trigger a relay with a timer so that the 12VDC truck horn sounds for the specified period of time. Looking online, I think the ELK 930 Doorbell Detector might help, but not sure I understand what an "Open Collector" is and how to connect up the "Open Collector" somehow with a relay that has a timer and that can control the 12VDC truck horn.
Any suggestions for the best components to use and installation instructions would be much appreciated.
Thank you!
Cal
https://support.ring.com/hc/en-us/a...-Transformer-Without-a-Pre-existing-Doorbell- so that Ring doorbell could be charged by doorbell transformer without having other doorbell components.
What I'm struggling with is how to get the press of the button on the Ring doorbell 12-24VAC to trigger a relay with a timer so that the 12VDC truck horn sounds for the specified period of time. Looking online, I think the ELK 930 Doorbell Detector might help, but not sure I understand what an "Open Collector" is and how to connect up the "Open Collector" somehow with a relay that has a timer and that can control the 12VDC truck horn.
Any suggestions for the best components to use and installation instructions would be much appreciated.
Thank you!
Cal