Ok, I am a newbie with all this smartthings stuff. I searched for hours but couldn’t find a solution I could understand. So I am hoping that I can get some assistance and possibly add some useful content for anyone looking for a similar solution. I did see some topics about using a 12v DC output from an alarm panel and hooking that up with either a stepdown converter or a relay to a Z-wave door or water sensor and using that to trigger events. But that was about as detailed as those threads got and that was from a few years ago so I thought I would post this again and see if there were any known 12v DC triggers out on the market yet.
Here is the situation. Our driveway is on the side of our house and there is only one window facing it. If we are not in the breakfast room then we don’t get to see the driveway. We want to know when we get visitors whether it is a delivery driver that doesn’t bother walking around to the front door or a guest. So I found the metal detecting Dual 4k Plus driveway alert system. This kit comes with 1 DAPT-4000 and one RE-4k Plus receiver. The receiver puts out a tone when the sensor detects a vehicle. However, we have a large house and a large outbuilding. I could get several of the receivers and put them all around the property but at $60-$75 each that would add up fast. The receiver also has two NO/NC relays and a 12VDC output terminal. So I thought why not use the Alexa devices to send a notification/doorbell tone to all the dots and echos we already have spread around. Unfortunately, the receiver is not a smart device. So I am looking for some way to use one of the relays or 12v DC output to send a doorbell type tone to our Alexa devices.
So I know how to solder and can do some circuit hacks/bending if needed. I just need to follow a plan to do it. I am also not quite sure how to use a water sensor to send a tone to all the Alexa devices. I searched Amazon for water sensors that work with Alexa and didn’t see any sensors in the results.
Does anyone know of a device or somewhat simple solution that can be used?
Can you walk me through the basics of how to do it?