I want an Android notification when my doorbell rings. I've already got the bell rigged up to Linux but I need an app that will give me a notification on, say, a UDP packet. It could use SNMP, it could use a web request, it doesn't really matter so long as I can trigger it from the Linux command-line. Does such a thing exist?

thanks!

Take a look at Pushover.net, ok, so it's a one-time $5 to use it on Android but it has a very easy to use API that can be triggered from the command line with a curl call.

I've been a user for years.

Thanks for the recommendation, but doesn't that work via some internet site? I wouldn't want my doorbell failing to work if the internet was down.

Yes, it does use an external site. However, with any of these things you have to take a pragmatic look at the various points of failure.

Given your use example, assuming your doorbell is wired directly to whatever you're running Linux on, your doorbell would "fail" if:

• That box dies.
• That box looses internal (WiFi) connectivity
• Your WiFi Access Point / Router dies
• Your phone isn't charged
• You've muted your phone
• You mention UDP, that's a stateless protocol so there's no guarantee it gets delivered

So you have to decide which of these failures you're happy with and mitigate accordingly.

If you want to go down the UDP route then look at something like this for your phone: https://play.google.com/store/apps/d...dreceive&hl=en no idea if it can do notifications on when a packet arrives but might send you in the right direction.

Alternatively pick up a (cheap?) usb GSM modem dongle and use a Pay-As-You-Go plan and send SMS to your phone when the door get pressed.

On a more serious note, does sounds like a fun project, let us know what you end up doing.

The box is my router.

The box is my AP (I'm running hostapd)

In which case nothing would work anyhow.

That just never happens.

I've seen independent apps that will un-mute on specific notifications I was planning to use one of those in addition. But there will be a buzzer by the door as well, I'm not just relying on this.

As I said, I don't really care what protocol is used, but for UDP I tend to send several packets (may lead to several notifications but not really a big issue as we don't get many visitors).


I don't think this can work, I've seen big delays in receiving SMS in the past, 30 seconds may be enough for the person ringing to give up.

Absolutely! I may end up having to write the thing myself, not really looking forward to it but if it's the only way....