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139 posts

Master Geek
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Topic # 224050 30-Oct-2017 22:05
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I'm hoping to consolidate some thoughts and threads that are historical with regards to the options to interface with an Arrowhead alarm system, although the general principals should be relevant to many alarms systems.

 

I've got an Arrowhead Elite S alarm, which seems to be fairly common and standard. I've installed the App Kit, which allows me to check and control the alarm through the (fairly poor) app. Wanting to have better history and integrate with my to-be-implemented home automation system I've just installed the RS232 kit, which is connected to a Raspberry Pi over serial. This outputs codes over serial when sensors are tripped, when alarm is set, etc.

 

I'm looking to control the alarm remotely, get alerts on the alarm being set off, and use the PIRs as motion detectors for other automation things (if no movement in garage for 5 minutes, turn off the lights) etc.

 

I've read this recent thread by @chimera which I hope to be able to achieve without the the Wemos as I can now get data re PIR status over serial. So I suspect I might want something that can read the serial codes, decipher them, and send appropriate MQTT messages to home automation system. I am looking at Open HAB or Home Assistant, and want to be able to ultimately work with HomeKit on iOS via Homebridge. I suspect I have a bunch of reading to do..

 

This older locked thread is closely related, but now with the RS232 module I can get the events into computer - but its the next software bit I am looking for advice. Various people (@danielfaulknor) have indicated the have worked on using the serial output of Arrowhead alarm, and there are various Open HAB plugins for other alarms - but I have yet to find an already finished plugin / software for the Arrowhead Elite S. Does anybody know of one?


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520 posts

Ultimate Geek
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Internet by Design

  Reply # 1892862 30-Oct-2017 23:35
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I have a NodeRED flow that I use to talk to mine, that the sends events and receives commands over MQTT to my Home Assistant install.

 

 

 

It's only half written, I've been too busy podcasting (including the Home Assistant podcast!) lately





3622 posts

Uber Geek
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  Reply # 1892890 31-Oct-2017 07:35
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I've used both a python script and more recently a Paradox SDK based windows service to talk to my Paradox alarm...not relevant to you....but as the other reply, all the data is dumped to mqtt.  That, I find, is the most flexible platform for consuming that data. 

 

I have it read by openhab and notification tools.





Previously known as psycik

NextPVR/OpenHAB: 
Gigabyte AMD A8 Brix --> Samsung LA46A650D via HDMI, NextPVR,OpenHAB with Aeotech ZWave Controller
Media:Chromecast v2, ATV4, Roku3, Raspberry PI temperature Sensors and Bluetooth LE Sensors,HDHomeRun Dual
Windows 2012 
Host (Plex Server/Crashplan): 2x2TB, 2x3TB, 1x4TB using DriveBender, Samsung 850 evo 512 GB SSD, Hyper-V Server with 1xW10, 1xW2k8, 2xUbuntu 16.04 LTS, Crashplan, NextPVR channel for Plex,NextPVR Metadata Agent and Scanner for Plex


 
 
 
 




139 posts

Master Geek
+1 received by user: 2


  Reply # 1893329 31-Oct-2017 21:11
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Thanks both. It sounds like MQTT is the thing to be using, but that leaves me with plenty of options on the hardware end (e.g. RaspberryPi vs ESP8266) and would leave me pretty flexible on the software end (e.g. Open HAB or Home Assistant or other).


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Uber Geek
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  Reply # 1893382 31-Oct-2017 23:57
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Home automation is one of the things on my "to do" list. And the ESP series MCUs seem perfect for use as nodes, who's only purpose would be to collect sensor data or in your case talk to your alarm. And then publish MQTT messages.

 

Also virtually everything I have will be running from a central battery backup system. So low power usage is important. And it seems like a waste to use a RPi just to monitor some GPIO pins and publish MQTT messages.

 

I was originally keen to do a hard wired system. But making it fully reliable and the cost of running data links to outside locations. (My spa pool and water tanks definitely don't need gigabit Ethernet, While there is no cheap, off the shelf hardware available to implement RS422 or CANbus) I have resigned myself to the fact that WIFI is the best solution, despite none of my nodes needing to be portable.








139 posts

Master Geek
+1 received by user: 2


  Reply # 1893385 1-Nov-2017 00:28
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The Raspberry Pi in my setup is doing a few things at the moment - Ubiquiti Controller, Homebridge, some SNMP monitoring etc and will run OpenHAB/Home Assistant (when I get to it), as well as MQTT broker. It is also easy to power and wire in to both my network and to my alarm. At the moment its the easiest option to experiment with, and I also feel a sense of security by having things hardwired!


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Uber Geek
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  Reply # 1893402 1-Nov-2017 06:18
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Wired is useful when possible, especially if you can get Poe.

WiFi is only useful for outlying areas but also only where in coverage. Battery powered sensors are annoying




Previously known as psycik

NextPVR/OpenHAB: 
Gigabyte AMD A8 Brix --> Samsung LA46A650D via HDMI, NextPVR,OpenHAB with Aeotech ZWave Controller
Media:Chromecast v2, ATV4, Roku3, Raspberry PI temperature Sensors and Bluetooth LE Sensors,HDHomeRun Dual
Windows 2012 
Host (Plex Server/Crashplan): 2x2TB, 2x3TB, 1x4TB using DriveBender, Samsung 850 evo 512 GB SSD, Hyper-V Server with 1xW10, 1xW2k8, 2xUbuntu 16.04 LTS, Crashplan, NextPVR channel for Plex,NextPVR Metadata Agent and Scanner for Plex


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