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?