Seplos BMS and Victron Venus OS connected via CAN. Very easy setup (almost).

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I finally did it, guys! The Seplos BMS is now talking to Victron Venus OS through CAN bus. The setup is very straight forward but for some reason it did not work for me with the Waveshare CAN Hat for the Raspberry Pi. At least this is what I thought.
I tried two different CAN Hats for the Pi and had immediate success with the isolated version but not with the 'normal' CAN Hat 🤷‍♂️. After a bit of experimenting, I found a workaround and now both CAN Hats are working with the Pi.
We now have the Seplos BMS showing as the battery monitor in Venus OS, connected via CAN bus. Unfortunately, the second Seplos battery (or better: the second BMS) did not work with this method. It has only a so called 'RS485 BMS' (10D version) and the CAN port is non-functional.
Kevin Windrem's Github site with all the great projects he's working on:
github.com/kwindrem
His VeCANSetup page:
github.com/kwindrem/VeCanSetup
Waveshare CAN Hats for Raspberry Pi:
off-grid-garage.com/bms-commu...
How to connect your BMS to Victron Venus OS. Easy setup and works with JK, JBP, DALY and Heltec.
• How to connect your BM...
All working RS485-USB adapters to connect your BMS to Victron's Venus OS:
off-grid-garage.com/bms-commu...
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15 сен 2022

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Комментарии : 176

@sergea1138 Год назад

The canbus port is not functional on the 280Ah battery bcoz it is not a CANBUS port but a RS485 port (to connect to voltronic like inverter for example) since it is a RS485 bms version, even if it labeled as CANBUS. ;-). they didn't modify the label on the pcb, and didn't produce 2 different front box panel.

@philipboniface4112 Год назад

oh my god what a lot of work for something that should be so simple basically keep it simple keep it easy why make the software so hard to install I don't see the point

@ranig2848 Год назад

So basically you have one BMS that CAN and one that CAN’t 😂

@tedhamilton2362 Год назад

I plan to leverage this video to install a 3rd party inverter/charger as well as two solar charge controllers using the RS485 port on the CAN HAT that mounts on the RASPI. Looking forward to making it all work. I will also be adding my Daly 500amp BMS as the 'battery monitor' using the other video for that.

@matthewsmith4219 Год назад

Just as an update to this Can hat driver page link has changed from video and been updated work with Venus 2.91-2.92 v with rpi4 Waveshare can hat 2 ch isolated none FD

@hummmingbear Год назад

Does the BMS not automatically throttle the Charge Controller/Inverter when there are critical states it reports to VenusOS via Canbus? i.e. cell voltage too high, would that stop charging, or do you manually need to configure that in NodeRed?

@shashikanthg5866

Hi, i'm using canalystii module to read Battery BMS , but unable to get the values from the register, do you have any idea related to it.

@hermannbischof8320 Год назад

Off Grid rocks again - even with SEPLOS. Day could not start better !

@tujuprojects Год назад

That’s dirty. No sign of package management like rpm packages. I feel filthy from only watching this.

@BOGGarage Год назад

Unrelated but does your weptek 21a power supply ever spark when connecting it to a battery even when output is off or set to zero? Mine does and I think there is something wrong with it.

@223Sako Год назад

Thanks for your hard work Andy and Kevin. I recently bought a pair of Pylontech batteries. I have a Cerbo GX but its connected to a 12V system and I want to move to 48V with the Pylontech and a 48V inverter. I bought the Waveshare can hat you linked too and whilst the Kevin's VECanSetup program isn't the most user friendly program to install and setup it works superbly.

@martijnheeroma5492 Год назад

I have my EEL diy battery box (Seplos BMS) connected with the Rasp, really happy with that. Andy (and Kevin) thank you so much for you're help.

@Zools_tube

I thought I'd chip in here. Kevin's latest VeCanSetup works straight out of the box with the single waveshare Can/RS485 Hat as shown, choose option 5. The hard bit to find (anywhere) is the required Hi/LO can connections. Looking at the contact side of the RJ45 connector Pin 4 (typically blue on a std network cable) is Hi, Pin 5 is Lo (typically light blue or blue/white). This works on the Seplos BMS - assuming you have the bluetooth version which can be set for Victron.

@DannyCsaszar

Yahoo! my JK is talking to my venus os. User Data 2 says "Always be thankfull for Andy" I couldn't of done this without you!

@ciciedee5474 Год назад

Another outstanding video!!! I now know what the forums meant when they said said select can in the top right of the screen. Kudos!

@edwardvanhazendonk Год назад

Thanks for sharing the collected knowledge enhanced with your off grid view and wittyness. Great it works.

@maxmeyer7299 Год назад

Andi, it's good that I always look to the end...👍👍👍

@alanfalck1184 Год назад

Thanks for demystifying the Geek & Linux stuff, I've been trying to do this for a while, immensely helpful video (thanks also to Kevin) :) BRAVO !!!

@excillisbank2611 Год назад

Merci ANDY pour ta contribution exceptionnel.👍

@Pey5531 Год назад

This could be a classic example of language barrier. Since I speak Mandarin, my communication with them is always been clear. They know exactly what I am looking for and I know exactly what they can offer. Of all the BMS I purchased so far it has worked as expected.