I guess the two solder pads near the “Meas ubat” print will work?
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Hi everyone,
Since we are doing a custom log analyzer, we had the idea to include the following feature:
“Bin” the driven speed in several sections (10-15kmh, 15-20, 20-25,…) so the user can analyze in which “speed regime” they travel most efficient and if there is an unexpected step somewhere.
Current status looks like this:
We are analyzing both power / efficiency as well as motor RPM and from that calculate propeller slip.
What do you think about this feature? Which data would you like to add, that is not analyzed currently?
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this is epic, would battery draw be an option and reading in from a second vesc over uart ?
What exactly do you mean by battery draw? The consumed Wh, added up, per bin?
2nd VESC would be possible through CAN-bus I believe… but then again for most use cases I would assume both VESCs will see the same load or at least close enough that the statistics would not differ…?
ah sorry, i would like to see what the current comeing from the battery/ consumed Ah
i would hope the 2 vesc’s are doing the same thing but i have a feeling mine are not and it would be great for troublshooting.
You can see current from battery and current to motor in the “normal” overview/graphs, like in all common log viewers (metr/voyage/…). Do you need them per speed-bin as well? I personally don’t see the benefit there, the main purpose of that speed-bin view is to get an indication about efficiency vs speed.
Ok, also that would mainly be needed in the graph view, not the speed-bin view I guess… At the moment BREmote V2 only communicates with one VESC via UART… I will put 2 vesc readout on the to-do list. Until then I know for sure VESC Express (can buy that off AliExpress for 9 Euro) can log multiple VESCs at the same time. Althoug I find the usage of VESC Express rather finnicky and furstrating at times…
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I also have recently included a feature, that will make measurement of remaining battery % (SOC) very accurate. To use this you have to configure the exact battery type (manufacturer and model).
I will prepare the most common cells for everyone to use.
For that I would be happy if you could respond with a few cell types that you think are most common in eFoil and boogie at the moment?
For sure I will do:
- Sony VTC6
- Samsung 30Q
- Molicel P45B
Which other cells are a must?
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Samsung 40T (40T3) are the cells I have used
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Hello, Samsung 50E, 5000 mah for 15amp max is a good one
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How’s it going with the Nano version?
I want to hold the remote like this
But I don’t want to do it exactly like this.
My beta testers sadly are a bit slow testing 
But I myself have tested it thoroughly and Jasmin already ordered PCBs for it, so it is coming soon!
You can have a look at the bulid video here already, files will be added to git soon as well.
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I use Sony VTC6A (21700)
When comparing prices the BAK and EVE cells are quite interesting as well.
Examples I could find on NKON:
- EVE 40 P and PL
- EVE 50 PL
- BAK N21700CGP
- BAK N21700-45D
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i am using the tenpower 50me - 15amp
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Could not find discharge curves
Only found curves for EVE INR21700_50E
Will be added
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Samsung 50S - I use 2 battery 14s10p of them.
I can only find data for Samsung 50E, not 50S
