For a while now I wanted to be notified via my mobile phone that my Veritas 8 alarm panel had gone off and was sounding the alarm.I have been looking around for a device that would send a message via wifi to my phone for free and that the device itself was very cheap.I couldn't find any device that would fill my requirements exactly so I decided to build a hybrid one myself.Total cost was £26.43p.
I first bought this wifi sos fob from Amazon
and then bought this relay
I firstly set up the app for the fob so that when I pressed the button the app alerted me.
I then opened the fob up(very easy) by prising it apart.
I then soldered two wires across the internal switch.
I ran these two wires into the COM and NO terminals of the relay.
Finally ran a plus and minus to a 12 volt power supply.
The relay has the feature that as the power is activated it only switches for a second which was ideal for this project.
This was setting 2 on the relay.This way the fob would only send its signal for a second before switching off.
This was now tested by applying 12 volts to the relay and my phone received the notification.
I then taped the fob and the relay together making sure the charging port on the fob was still exposed. I would think the battery should last at least 12 months due to the alarm only ever going off very intermittently.
Finally the finished project was installed into the alarm panel across the bell supply using the positive 12 volt and the bell minus as the terminals. So now when the alarm goes off and the panel sends the 12 volts to the bell then the relay will activate and send a notification to my phone.
I first bought this wifi sos fob from Amazon
and then bought this relay
I firstly set up the app for the fob so that when I pressed the button the app alerted me.
I then opened the fob up(very easy) by prising it apart.
I then soldered two wires across the internal switch.
I ran these two wires into the COM and NO terminals of the relay.
Finally ran a plus and minus to a 12 volt power supply.
The relay has the feature that as the power is activated it only switches for a second which was ideal for this project.
This was setting 2 on the relay.This way the fob would only send its signal for a second before switching off.
This was now tested by applying 12 volts to the relay and my phone received the notification.
I then taped the fob and the relay together making sure the charging port on the fob was still exposed. I would think the battery should last at least 12 months due to the alarm only ever going off very intermittently.
Finally the finished project was installed into the alarm panel across the bell supply using the positive 12 volt and the bell minus as the terminals. So now when the alarm goes off and the panel sends the 12 volts to the bell then the relay will activate and send a notification to my phone.
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