SmartThings Integration With Home Security

If anyone in the UK is considering the Envisalink I have an unused EVL-4 for sale here: For sale: Envisalink EVL-4 (Honeywell / DSC) UK brand new


Is the Envisalink model EVL-4EZR the same as the EVL-4?

So If I buy the Envisalink, what else do I need to purchase? The cabinet for my alarm has a LOT of wires in it since all windows, doors, motion sensors, etc are all wired in there. I want to keep this as simple of an install as possible. Do I need to buy anything else? eg wires or anything like that?

With this solution, I do not have to disconnect the existing alarm system and can use it as normal if I needed to? With this solution allow me to use Smartthings to access any of the sensors and do “alarm” kinds of functions? And also allow me to just use the sensors if I want to use them for workflow stuff?

I may order this today and give it a try if I do not find any roadblocks.

Get the Alarm decoder unit I have linked below. This will handle everything you need to get your system integrated with Smartthings. I have personally used this with a Honeywell Vista20p and it works great. I also have it setup to automatically arm/disarm the system when everyone leaves the house.

With this system you do not need to touch the wiring for your sensors, you just need to connect the AD2Pi system to the same terminals as your keypads connect to. The alarm will also still work with a monitoring company.

Alarm Decoder AD2Pi

I used an existing raspberry Pi so that is why it looks slightly different than the network appliance, but this is my setup. But the bottom board is the entire system, very small and easily fits in the alarm box.

Note: They also have a wiring harness that will connect to your existing alarm battery so you will not need to power the Pi through USB, I still have to pickup one myself.

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Here’s a different approach to integration. Just a different option dependent on your use preferences

Appears so… check EZR vs CG version - EyezOn Forum

If you go this route, you’ll need the EVL, some 4-wire to connect it to the panel and some CAT-5 to connect it to your network.[quote=“djtech2k, post:22, topic:91365”]
With this solution, I do not have to disconnect the existing alarm system and can use it as normal if I needed to? With this solution allow me to use Smartthings to access any of the sensors and do “alarm” kinds of functions? And also allow me to just use the sensors if I want to use them for workflow stuff?


Ok. Thanks all for replying. This can definitely be a confusing topic :).

I just want to make sure I understand everything here.

I think I need to narrow my choices to the ones that more closely match what I want and then compare and decide from those options. Here are the options I think more closely meet my needs. Please correct me if I am wrong.

I want to be able to use the existing alarm components, including keypads, just in case I need to in the future. I also do not want to replace or remove the existing alarm panel. I think this eliminates the Node and/or the ESP8266 and the Arduino methods. So I need to figure out the methods that allow me to do that. I know @redloro solution does that but it does require the software to be running/communicating 24/7. I see now there is a mention from @ritchierich, @raidflex, and @cozdabuch about using the AD2Pi device. Do these require the proxy software to run? What they do or not do that redloro’s solution does not?

Trying to figure out if these things are equal in functionality, install complexity, and requirements.

The AD2Pi is a device you hook up as a keypad to your alarm panel. It’s even addressed as one too and it receives all the keypad messages from your alarm and passes it via serial to another device such as a RPi, Etc. The Alarm Decoder network appliance has one of these already configured with a RPi so you hook it up to your alarm and install the smartapp and device handler and you are good.

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So with this solution, I only need to buy 1 device and that’s it? Anything else? I’m not sure if the AD2Pi is the same or different than the Alarm Decoder network appliance.

How does this solution functionally differ from @redloro ’ s solution?

I do not know what you mean about passing to other devices like Rpi.

Like I said, I want to be able to use the alarm as normal, use smarthings to interact with the alarm if I want to, and be able to use all the alarm devices/sensors with smartthings.

The appliance includes the AD2Pi and a RPi so everything you need. Again this device acts as another keypad so your existing alarm functions as it does today yet you get integration with SmartThings to receive faulted zones and arm and disarm the alarm. Anything you can do on your keypad today you could do from ST

I don’t know anything about Redloros solutions.

Think of the AD2Pi as more a digital keypad with smartthings integration. You can actually connect to the AD2Pi through a web interface similar to a router and from here you get a digital keypad that emulates your physical keypads. So with this digital keypad if you hit a button it register that exact button as if you hit it on your physical keypad.

With Smartthings there is a web app that integrates with the AD2Pi to allow you to get alerts for each zone and also arm/disarm the keypad using the smart home monitor within the android/IOS smartthings app. And with smartthings you can go further like I have and monitor who is home by their phone and have the system automatically arm/disarm based on location.

Can you use all the sensors and sirens in smartthings workflows and stuff like that?

Just trying to figure out what this does not do in comparison to redloro’s solution.

Yes it integrates into the Smartthings Home Monitor so you can arm/disarm the system based on conditions. The devices or (zones) are seen in smartthings as security sensors, sirens or smoke detectors.

Is smarthings home monitor different than the standard smartthings app? Can the sensors be used for things that are not alarm related? For example, when the front door opens, certain lights come on or something like that.

@redloro How does this differ from your solution?

No SHM is part of the smartthings app, it is what manages the “alarm” portion of the app. Yes each zone is its own device and can be used to trigger other conditions like lighting.

Ditto on what @raidflex said…

So is there anything I would get in your solution that I cannot do with this? Trying to figure out why I would or would not go with this one. Looks like the proxy is the main difference but not sure.

Ok. I am still not clear on what I will miss or lose by going with the AD2Pi network appliance but if its the best path, then that’s fine. Just don’t want to go down a path and find out it isn’t the right one.

So if I buy this device, what else do I need to buy? I saw a mention of some wires or a harness? Anything else? Also is there any type of instructions or procedures to set it up and get it working? I know @redloro had a lot of good documentation and videos on his solution.


Ok so I am trying to order that AD2PI Network appliance but have a couple questions.

What firmware should I choose, Stock Ademco or Updated DSC?

Is there anything else i will need to get this setup and controlled by my smartthings? I want to make sure I buy everything I need in one shot. I also need to find some kind of install instructions to get it setup and integrated with smartthings.

Anyone know?