PiHomeGuard
Posts: 4
Joined: Mon Oct 10, 2016 8:45 am

Pi HomeGuard - the low cost security monitor.

Thu Oct 13, 2016 6:40 am

Hi,
I just wanted to give you a heads up about Pi HomeGuard, I feel this is an excellent self build project for learning.
The idea was first featured on the Pi Blog and my Indiegogo campaign has recently been mentioned on the MagPi

The project currently has sensor solutions for:
Power usage, Temperature, PiR motion detection, Door Open/Close, Toilet Flush, Flood, Ext Temperature & Humidity, Rain Gauge and Wind speed.

The wireless sensors are self build but because the complexity is handled in the firmware they only need several components with minor soldering to complete. I feel the learning potential here is vast and once complete students will have a useful low cost system to monitor their family or property.

Each of the sensors has had its own challenges, an example is the Door sensor. To ensure detection, the open door event has to be held ON for several transmit cycles. On my first version I used a 555 timer delay circuit to hold the signal ON for at least 30 seconds. This added cost, complexity and the 555 circuit was not easy to build. This is now all handled in the firmware and we now only need two components, the sensor transmitter board and a magnetic door switch !

It would be great if my Indiegogo campaign was successful, let me know if you need any more details.
thanks,
jamie
See Live demo at: http://pihomeguard.com

PiHomeGuard
Posts: 4
Joined: Mon Oct 10, 2016 8:45 am

Re: Pi HomeGuard - the low cost security monitor.

Thu Dec 26, 2019 7:04 am

Update:
I started this journey with Pi Homeguard many years ago when I built a Pi system to monitor my late mother. The system has now progressed to Mi Homeguard which now uses PiZeroW with ready built sensors. You can read more at http://mihomeguard.com and watch a video demo at: https://youtu.be/82-SuJARFPE
regards,
jamie

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