One of my homey challenges is to catch the signals from my alarm system. (Its an older system without smart interface)
Every room in the house has a wireless sensor, would be great if I could use these for presence detection.
I searched for an app that could read the sensors but did not find one. So the challenge is to create one myself (with a little help) have no idea how to start and do not have a lot of software skills…
My sensors are 1way sensors 868.35MHz.
So the interface is probably simple: identifier for the unit & on/off signal.
There could be 2 ways to go:
1 Read the RF signal that is send by the sensor (how?) and build an app that monitors for that signal.
(Trigger a sensor, catch the signal, use that)
2 figure out the the RF coding and build an app around that.
Suggestions on how to start are welcome
(Or maybe I missed an app thet excist)
I found a guy who hacked a 433 system…
Perhaps you could use this technic for hacking your system in some way…
I hope it helps…
Stuff you can read to inform you what you ca do with Homey. It’s also about 868MHz
The video from @Jojje is absolute educational how to use en 10 $ DVB-T USB stick on an Raspberry Pi.
But it will not help you in how to capture the signal the way Homey Analyzes it.
The Links from @JPe4619 from Athom and the GitHub from @HarriedeGroot are absolute the way you should investigate the signal to build your Apps on Homey.
Just in 5 minutes to capture a signal and analyze it with the Athom-Homey-RF-Signal-Analyzer to verify my by hand made signal what cost me a lot of time (some evenings) last year I created my first basic 433 App.
If you’ve got any problem using the tool, please let me know. All suggestions for improvements are welcome.
Im not sure if I have managed to connect successfully.
I used the public IP and added the besrer token.
I pushed the button while listening, but could not see any results anywhere.
Im trying to listen for the Honeywell doorbell signals