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jiezhi320 / gruvin9x

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Battery "fuel gauge" using FrSky telemetry with current shunt #24

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Please describe the feature you would like added

Display amount of energy drawn from a battery pack using FrSky telemetry.

Please offer any specific implementation methods you might have in mine

Use one of the A/D inputs on the FrSky telemetry RXes with a current shunt to 
transmit instantaneous current readings to the 9X.  On the 9X, integrate 
current readings over time to show total energy drawn out of a pack.  Maybe add 
the ability to set the pack capacity and trigger an alarm when some percentage 
of the pack's capacity has been exhausted.

Original issue reported on code.google.com by explodin...@gmail.com on 24 May 2011 at 8:51

GoogleCodeExporter commented 9 years ago 
This is a good idea. But it might be better implemented (more accurate) using 
an onboard telemetry hub to insert this data into in a 'user data' serial 
stream.

We're yet to get to that stage with Fr-Sky, since we've been concentrating on 
foundation code for the new circuit boards, etc. But at some point, we aim to 
hopefully utilise some pre-existing telemetry hub for this sort of thing and 
more -- rather than re-invent that wheel, along with everything else. :D

I've heard the Fr-Sky are working on prototype telemetry hub products. Perhaps 
they're on the market already. I'm not sure -- need to look it up again. If 
that happens though, then it will probably make most sense to implement our 
system based around those products.

Original comment by gru...@gmail.com on 28 Jun 2011 at 9:54

GoogleCodeExporter commented 9 years ago

Original comment by bson...@gmail.com on 14 Oct 2011 at 8:01

GoogleCodeExporter commented 9 years ago

Original comment by bson...@gmail.com on 15 Oct 2011 at 7:18

GoogleCodeExporter commented 9 years ago

Original comment by bson...@gmail.com on 15 Oct 2011 at 7:19

GoogleCodeExporter commented 9 years ago 
Interesting ... you found a way to remove labels. Or did you just change an 
existing one, which then caused a -old +new event?

I tried to find documentation on how Google intends this to be used. Could not 
find anything.

Original comment by gru...@gmail.com on 15 Oct 2011 at 10:22