[RndTbl] Ras Pi Help needed.

[Jason Loughead]

Check this tutorial out for creating a systemd unit: 
https://linuxhandbook.com/create-systemd-services/


Jason

On 1/9/24 23:31, Adam Thompson wrote:
>
> I haven’t booted my Pis in a while, but didn’t Rasbian follow Debian, 
> and switch to systemd?  If so, the instructions on that page will 
> probably work for now, but will have to get translated to a systemd 
> “unit” at some later date.  Not a blocker issue today, just something 
> to keep in mind.
>
> Many people have created alarm systems using Pis as intelligent 
> controllers; many people have reinvented the wheel, too!  I suggest 
> you have a look at these existing projects:
>
>   * PrivateEyePi/JemRF Project
>     <https://projects.privateeyepi.com/home.php>
>   * bkbilly/AlarmPI: 🚨 Home Security Intrusion Detection for
>     Raspberry PI or any other linux OS (github.com)
>     <https://github.com/bkbilly/AlarmPI>
>   * Konnected Alarm Panel connects a wired alarm system to your smart
>     home <https://konnected.io/>
>   * Home Assistant (home-assistant.io) <https://www.home-assistant.io/>
>
> One of the more contentious aspects of inter-building communications – 
> assuming you truly meant that the barn and the house have independent 
> internet connections – is that of communication between the two 
> sites.  If both have residential-grade service, you’ll have dynamic, 
> NAT’d IP addresses at both locations, which makes establishing a VPN 
> difficult (although not impossible).  You can use web-based “broker” 
> servers, whether running your own or using someone else’s – Google, 
> MS, etc. have proprietary-ish options, or you can run your own MQTT 
> (or whatever you want, really) server in the cloud pretty cheaply – on 
> the order of $5/month.
>
> Apparently network-connected MQTT-enabled alarm **sensors** exist, 
> which might eliminate the need to a Pi at the barn entirely.  Or if an 
> Android app will suit instead of an alarm blaring, you might be able 
> to skip the house end entirely.
>
> There’s a million ways to solve this problem, most of them wrong 😊, 
> but many of them right, too.  Having said that, unless you’re doing 
> this as an exercise to learn how to use a Pi at a low level (GPIO pins 
> monitoring alarm signals, building your own GUI, etc.) I **strongly** 
> recommend you stand on the shoulders of giants, so to speak, and pick 
> an existing framework and work with that instead.  I’m a firm believer 
> in not re-inventing the wheel unnecessarily!
>
> -Adam
>
> *From:*Roundtable <roundtable-bounces at muug.ca> *On Behalf Of *John Lange
> *Sent:* Tuesday, January 9, 2024 7:32 PM
> *To:* Continuation of Round Table discussion <roundtable at muug.ca>
> *Subject:* Re: [RndTbl] Ras Pi Help needed.
>
> I should think the instructions here are what you are looking for?
>
> https://thepihut.com/blogs/raspberry-pi-tutorials/tutorial-how-to-run-a-program-from-boot
>
> John
>
> On Tue, Jan 9, 2024 at 6:43 PM Andrew Popowich 
> <Andrew at ebytesonline.com> wrote:
>
>     Without going into TOO much detail,
>
>     We are using 2 Rasp Pi Gen 4
>
>     We are trying to run them connected via the internet.
>
>     1 is at a barn. To be used when a sensor is triggered, it sends
>     that alarm to the 2^nd ras pi, via the internet to a house 10 kms
>     away.
>
>     ALARM will not stop until someone can press a key on ALARM sending
>     machine in Barn. Alarm does NOT play in barn, just at 10km house.
>
>     We are at the stage to just see if we can get Terminal to start up
>     automatically when the rasp pi’ s  turn on, and if it can auto
>     start terminal, run a script to just say Hello world.
>
>     We have tried many “working google solutions” and all have failed.
>     Is there anything we can try to see if getting terminal to
>     autostart at bootup and to write hello world ?
>
>     Please any ideas would be appreciated.
>
>     Andrew
>
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>
> -- 
>
> John Lange
>
>
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