Is there any zwave / zigbee device which can be used to connect hardwired contact , motion sensors ? My house is already fitted with hardwired sensors on each door and window and multiple motion sensors. These are connected to security system. If some how ST can communicate to these sensors it would…

I just did this with a smart shield and wiring directly to the alarm panel. (3 doors and 1 motion sensor to start). I went this way over the pi since the updates are pushed form the Arduino shield in real time instead of polled (which wouldn’t make much sense for a motion sensor). If we get UDP su…

Oooh this is getting good… it really sounds like a shield and Arduino is the way to go. Works for me since I have an extra Uno lying around! How were you able to provide power from the Arduino to the switches - more specifically the motion detector?

This may be a bit of a workaround but there is a Schlage door/window z-wave sensor that has the (undocumented) option to connect to an external relay (or sensor): [image] Z-Wave Door and Window Sensor with Nexia, RS 100, Both White and Brown Cases Included - Household Alarms And Detectors…

Hey @pizzinini , can you share how you hooked up your hard wired smoke detectors? I’ve been wanting to integrate smoke detectors, but I can’t find any z-wave models that are hardwired. Your setup might do the trick and save me from replacing 6 detectors.Thanks! -Brian

You will need a relay for that. I have BRK smoke detectors and used this: BRK RM4 Smoke Alarm Accessory Relay http://www.brkelectronics.com/product/RM4 (I have seen that other manufacturers sell similar relays). The relay comes with a good description on how to connect it to your smoke alarms. Reme…

Thanks! This is perfect, and simple. I have First Alert detectors, and the BRK relay says it will work with them. Score! I appreciate your effort in getting the info so quickly, and for the graphic. Cheers! -Brian

Vijay - how do you want to integrate these? By zone? By type? There are a lot of ways you could do this without an individual sensor for each… Do all the wires come back to central location or are there remote wiring boxes/locations?

In my case, it is an existing 12 volt system and I was getting the existing hardwired devices in to the arduino to then push into the Smartthings ecosystem upon an event change. I just used a voltage divider (and later added an optoisolator to protect the shield) into the pins at 5volts.

Please share how yo u did this?

Hardwired sensors

Devices & Integrations Connected Things

pizzinini (Pizzinini) November 19, 2014, 4:27pm 49

Alerting when Power is out

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Hardwired sensors

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