Alarms after delay

[mathiasgaertner]

Hello all,
I am fairly new to using Signal-K on my boat and I am looking to set up an alarm after an event. That itself is easy but I'd like to have the alarm set after a configurable time after the event happened.
I.e. the wind increases above 20kt and if the value stays above that threshold for 30seconds an alarm should be raised.
Or, the boat is deviating from a set course for more than 2 minutes...
How could I configure that? Signal-K runs on a Linux machine (not RPI).
Thank you for any ideas.
Mathias

[bradharley]

You could use node red to perform that delay and trigger.   I also recently discovered pushover and its plugin which is really superb for mobile device notification. Enjoy!Brad Harley. — Sent from my iPhoneOn Apr 26, 2025, at 22:13, mathiasgaertner ***@***.***> wrote: Hello all, I am fairly new to using Signal-K on my boat and I am looking to set up an alarm after an event. That itself is easy but I'd like to have the alarm set after a configurable time after the event happened. I.e. the wind increases above 20kt and if the value stays above that threshold for 30seconds an alarm should be raised. Or, the boat is deviating from a set course for more than 2 minutes... How could I configure that? Signal-K runs on a Linux machine (not RPI). Thank you for any ideas. Mathias —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[mathiasgaertner]

That is an idea but that would require me to have multiple node-red systems running... Doable but not very nice. Definitely I will consider this

[tkurki]

Node-RED is very well suited for this kind of logic.

Why would you need multiple Node-REDs? And even if you did running one with the Node-RED sk plugin is very easy.

[mathiasgaertner]

I would need another node red because I already have one running on a cerbo gx. That one is quite limited in cpu resources. Installing timed alarms (may need more than one) will slow it down. Having NR on another host may miss the cerbo features that I need too

…

On 27 April 2025 5:03:08 pm AEST, Teppo Kurki ***@***.***> wrote: Node-RED is very well suited for this kind of logic. Why would you need multiple Node-REDs? And even if you did running one with the Node-RED sk plugin is very easy. -- Reply to this email directly or view it on GitHub: #178 (reply in thread) You are receiving this because you authored the thread. Message ID: ***@***.***>

[bradharley]

I don’t run node red on my cerbo(pi in my case) for that exact reason.  I have yet to find anything I can’t do with node red running external to the cerbo.  It might be worth trying and see if there is a limitation.  Brad Harley. — Sent from my iPhoneOn Apr 27, 2025, at 02:51, mathiasgaertner ***@***.***> wrote: I would need another node red because I already have one running on a cerbo gx. That one is quite limited in cpu resources. Installing timed alarms (may need more than one) will slow it down. Having NR on another host may miss the cerbo features that I need too

On 27 April 2025 5:03:08 pm AEST, Teppo Kurki ***@***.***> wrote: Node-RED is very well suited for this kind of logic. Why would you need multiple Node-REDs? And even if you did running one with the Node-RED sk plugin is very easy. -- Reply to this email directly or view it on GitHub: #178 (reply in thread) You are receiving this because you authored the thread. Message ID: ***@***.***>

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

[sbender9]

You can stop the Venus OS node-red and just run it via Signal K. Install the Victron palette there and you have access to Signal K data and Victron data.