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[Feature Request] Option to send battery voltage as telemetry data #111
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adam (Adam Wojcieszonek)
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Reference: adam/LoRa_APRS_iGate#111
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For adding an iGate in a remote-ish location, would it be possible to send the battery voltage as telemetry? This means that services like APRS.fi will graph the data over time, I understand it is sent in the comment field at present, but a telemetry packet would be great.
Thanks,
George, M1GEO.
Hi George,
we've been talking about it for a while:
it will need a second packet Tx for just sending the Battery Data, are you aware of it?
There is another form of telemetry data which is embedded in a comment.
See https://github.com/wb2osz/aprsspec/blob/main/APRS12b.pdf near bottom of page 68.
73,
John WB2OSZ
Hi John , thanks for the info: but the example is pretty confusing:
could I write you over telegram or signal to do some test and try to test it?
Apparently telegram and signal are some sort of chat systems.
I don't know anything about them.
I'm still stuck in the e-mail age.
I will send e-mail with clarifications.
Hi @richonguzman
Sorry, I'm quite new to the project. I'll be honest, I haven't looked in detail at the code, so I'm not sure what else would need to be added. Telemetry packets aren't any more complex than the location/comment packets you already have, they just carry a different payload. Some notes here.
I have access to some interesting towers but will need to run the iGates via Solar (no easy power on tower). I'm quite versed in solar power systems, but a way to monitor battery voltage (inferring battery health) from that is very useful. Having the ability to easily see a graph on APRS.fi is super helpful.
No worries if it's out of scope for the current development; just thought it would be a nice-to-have and wasn't aware that it was a popular topic! :)
Best wishes from Cambridge,
George M1GEO.
+1 for battery via telemetry. Very useful to monitor the performance of solar igates/digipeaters.
hi @g3cwi and @m1geo , @wb2osz pointed me the way to add this to the same single gps packet of igate/digi but I havent done the testing as im finishing a personal job idea and next week I will endeavor into the web installer for the tracker
but sure enough I will return to this ;)
Thanks @richonguzman - it would be awesome to have it on the iGate as well as the tracker.
Keep up the awesome work! It's truly appreciated!
George. M1GEO.
Just to add, @richonguzman - it would be nice to be able to send the internal and external voltages. For me, I use an MPPT LiPo charger and use the external sense to observe the solar MPPT input and the internal sense to observe the battery voltage. Thanks again!
Good idea, a graph can be useful in controlling what happens to battery/solar panels...ok, it's another packet and more energy consumption, but you don't need to send telemetry every minute, a packet every 5 or 10 minutes is enough, and you can use a switch in the gui to choose to send it or not...
Anyway, great piece of code, thank you so much!
@wb2osz finally got it working and I'm testing it
sending packets at 10min rate got 2 ok and the somehow the next ones were ignored and only preocessed a 30min packet (and the rest at 10 min rate somehow got not processed)
Ok, so no less than 15 minutes between packets to be sure that every packet will be processed, the graph will be smooth enough.
I got it working!! now I have to adapt it to the igate firmware, but its working even with fast data rate
Nicely done!
thanks to @wb2osz info I got it working and was recently added for Release V2.0 on WebInstaller ;)
With the configuration items as below, the iGate does not send any telemetry data; I have observed over the past 24h, and restarted it a couple of times to be sure.
if the igate is sending Wx data , the telemetry cant be decoded from the comment part of the packet
please confirm the Blue+L symbol is active on your igate
Yes, the device is also sending weather telemetry with a BME280.
That explains it. Thanks.
For anyone else, it appears you cannot have weather telemetry and voltage telemetry at the same time.
sadly I discovered this to, this is why I recommend to not having the "send encoded telemetry" switch on the station with Wx data
Fair enough. I have boldened the comment in my earlier post. Shame, but that's life. :)
Hope you can found a workaround as this will be very usefull for remote solar powered wx stations. Thanks