Raspberry Pi

Hallo Powerlovers ;) ,

komme leider nicht mehr weiter und hoffe hier ein paar Anregungen zu bekommen.

Hatte bisher folgendes Setup in meinem, in die Jahre gekommen Wohnmobil.

Raspberry Pi mit:

• Raspbian
• Node-Red
• eine selbst gebastelte Gasflaschenwaage mit HX711 über die GPIOs (Node-Red)
• Relais Steuerung meines Kompressors für Luftfederung über die GPIOs (Node-Red)
• LED Steuerung über GPIOs (Node-Red)
• RaspAp (Hotspot)
• Huawei USB-LTE Stick

Nun hab ich mir den Victron SmartSolar Charger MPPT gegönnt und dachte ich könnte den problemlos über die USB Verbindung in Node-Red einbinden aber entweder finde ich nicht die passenden "Librarys“ um den Charger in Node-Red nutzen zu können oder es funktioniert nur über die Venus OS?

Nun habe ich Venus OS auf einer frische SD Karte installiert und der Charger wird sofort erkannt. Nun fehlen mir die folgenden Möglichkeiten die ich zuvor hatte.

Ist es möglich die folgenden Anwendungen in Venus OS zu realisieren?

• eine selbst gebastelte Gasflaschenwaage mit HX711 über die GPIOs auszulesen?
• Relais Steuerung meines Kompressors für Luftfederung über die GPIOs anzusteuern?
• LED Steuerung über GPIOs zu steuern?
• einen Hotspot zu generieren?
• Huawei USB-LTE Stick Mobiles Internet über den Hotspot zu verteilen?

Bin über jeden Hinweis Link usw. dankbar

Power UP!

Beatstreet

Hallo!

Ich möchte die Daten meines Victron-Solarcontrollers auslesen und sie nicht nur auf einem Display anzeigen lassen sondern die Daten im lokalen Netzwerk auf einer HTML-Seite hosten. Ist das grundsätzlich möglichen?

Lg jacob

When bulk charging is in effect in Venus OS on Raspberry Pi 4 B with SmartSolar 100/20 MPPT system, the charging line is not animated toward the battery. Instead, the animated line is directed to the upper icon. Does this mean that either the Venus OS or MPPT are not properly configured? If so, what changes do I need to make?

This is a DC only off-grid system in which AC inputs and loads are not present.

[image]

I have an old multiplus compact 12/800/35 with old processor and firmware updated to 1903209 (original is 1903141) connected with mk3-usb to raspberry pi running venus os 2.80~29. no other ve.bus devices connected

The problem is that I cannot control the inverter state or change the input current limit remotely. Even when I connect the mk3-usb to computer and use ve.configure 3 virtual panel, none of the virtual switches work.

If I communicate directly with mk3-usb using commands from this link:https://community.victronenergy.com/questions/1096/mk3-usb-s-state-command-does-not-change-panel-swit.html

I can successfully switch the inverter on/off and change the input current limit.

What I noticed is that the inverter name in venus os is "phoenix multi compact 12/800/35-16" which is not exactly correct as it is not phoenix branded but propably doesn't matter. Also ModeIsAdjustable is zero in dbus which indicates that the remote inverter mode change is not supported?

Should this work or is the multiplus too old? Also I am not sure if I set the dip switches correctly. Now they are set to use the main switch on the inverter as if set otherwise I cannot turn the inverter on.

I have a Rpi 3 B+ running Venus OS 2.66 running on a houseboat connected to a Battery Monitor. Works great most of the time. I've had some situations though where things would stop talking I suspect due to my cell connection going away. I'd like to use the Venus auto 'reboot when no connect feature'. Unfortunately when I enable this and then reboot the RPi (using a 'shutdown now' command from an ssh session to the RPi), when the RPi reboots the date displayed is about 5 days old. This triggers the auto reboot in Venus before the RPi has a chance to sync date/time with the internet. Is there any way to insert a sleep in front of the auto reboot watchdog feature so that after a reboot the RPi will have a chance to sync time/date before the auto reboot kicks off again? Not quite sure why the RPi comes up from a warm boot with the clock 5 days off but it seems to be consistent.

Help please ?

Set-Up is Raspberry Pi 3 with Venus OS publishing to vrm site and there is a USB GPS plugged into the Raspberry Pi 3.

This is in a stationary vehicle. Why do I see a Speed published on the VRM portal ?

[image]

Thanks in Advance
Robert

I have my Raspberry Pi running with a mouse that requires a USB "dongle". This works ok if I insert the dongle after Venus has started and the mouse then works as expected, however if I restart Venus, it doesn't recognise the mouse and I have to remove and replace the dongle.

Any way to overcome this?

I know nothing about Raspberry Pi, but reading and watching lots of vids trying to learn. It seams you can get a lot of bad clones on Amazon or ebay. I found several links with Pi3 boards from Raspberry Pi, so that the quality is there. But none of them seam to have the Pi3 screens. They have all moved onto Pi4.

Where can I find a link for a quality Pi3 screen or combo Pi3 screen and board?

I scavenged a LCD screen from an old laptop for my Venus OS RPi monitor. It is as thin as a picture, so I plan to put it in a picture frame to hang on the wall. I bought a control board for the screen, but I won't get any touch control on the screen. Does anyone have a link for a small track pad to put on the wall with the screen?

Wireless would be a bonus

Hi All,

Apologies if this has been covered but i've not found anything.

I tried with a RP4, v 2.73, and it runs but the Wavestore Hat RS485/CAN doesn't work, I can't get the CAN (MCP2515) to load at all.

I've booted normal Ubuntu and got the CAN interface up, so I know the hardware is ok, it just seems like the overlay or something just won't load.

I've tried loads of different things, like changing overlays, naming, etc, disabled bluetooth, don't seem to be able to get the driver loading.

Anyone got a fix or clue what to look at?

Moin,

seit drei Jahren läuft mein Halbinsel-Setup, basierend auf:

6kWp PV,

Multiplus 5000,

2x smart Solar 250/65

BMV702 und

ca. 30kWh OPsZ Batterie (Hoppecke)

sehr erfolgreich.

Ich habe Venus GX auf einem Raspberry Pi laufen und mein Monitoring hat nach anfänglichen SD-Karten Problemen nun seit über einem Jahr gut funktioniert.

Nun hat man ja immer neue Ideen und, mehr aus Lust an der Sache als auf Basis wirtschaftlicher Erwägungen, habe ich mir nun weitere 3,3 kWp auf einer Dachfläche installiert, die nach PV schreit.

Ich habe bereits vor einiger Zeit einen 48V DC- Heizstab (1500W in zwei Stufen je 750W) in meinen Pufferspeicher für Heizung und WW-Bereitung installiert. Direkter Anschluss an der Batterie über 2 Schütze. Hintergrund ist meine Pellets Heizung, die an warmen Sommertagen zur Brauchwassererwärmung läuft uns damit mein Wohnzimmer weiter aufheizt.

Da ich generell meine Heizungssteuerung auf SPS Basis neu aufsetzen möchte, möchte ich natürlich eine Regelstrategie für die Heizstäbe programmieren.

Ich wende mich an das Forum , da ich möglichst mit der einfachsten der vielen möglichen Lösungen starten kann.

Meine Bedürfnisse:

Datentransfer vom Raspberry Pi ( Venus ) oder den Einzelkomponentenauf die SPS ? (Siemens Logo oder S7, ich habe auch noch einen Wago 750 controller rumfliegen, aber ich würde lieber bei der Siemens Range bleiben.)

- Hier sind folgende Werte wichtig.

MPPT-State (Smart solar Charger)

Batterie Spannung (BMV)

ggf. Netzeinspeisung des Multiplus. Dies ist aktuell möglich, wenn die Anlage jedoch ohne Netzanschluss betrieben wird, ist das keine Option.

Grundsätzlich ist es interessant zu wissen, wann die Solarladeregler nicht alles aus den Modulen herausholen, was aktuell geht. Andererseits kann man auch den Batterie SOC nehmen und ein Zeitfenster festlegen, in dem theoretisch noch die Sonne scheinen könnte. Was ich nicht will ist der Betrieb der Heizstäbe aus der Batterie sondern lediglich (hauptsächlich) aus überschüssiger Solarenergie.

Die einfachste Regelung wäre eine Relaiskontakt am MPPT, der mir sagt, wann er mehr rausholen könnte. Dann könnte ich eine gewisse Zeitspanne für den Heizstab vorsehen. Wenn das Relais in der Zeit nicht abfällt, könnte ich die zweite Stufe auslösen und so lange laden, bis das Relais abfällt.

Gerne würde ich aber in Form eines kleinen Brain-Drain Eure Meinungen hören.

Beste grüße,

Mathis

I've been working on a Nodered integration that includes some Victron Equipment and would like to use the Venus OS on a Raspberry Pi 3b+ to simulate my final configuration for development and testing. Just a side note the Nodered server will be running on another RPi so the "Venus Large" build is not needed.

I've got a lot working, but still a lot that is not.

What works:

• RPi 3b+ with Venus OS 2.73
• Boot via Ethernet cable to connect
• Access to RPi using Victron Connect
• Access RPi using Remote Console either from local network or VRM
• Use remote console to set WiFi parameters and no longer need ethernet cable
• Enable VRM and see demo configs on the portal

What doesn't work that I need some help with:

• Access from local network with SSH. I've enabled Remote Console but still get either connection refused or no response when SSH'ng from my Mac
• Being able to enable VNC to access Linux console
• MOST IMPORTANT: Add additional devices (Inverters, MPPT Chargers, etc etc) to mimic my actual setup

If anyone can point my in the direction of how to enable ssh and/or vnc access, as well as add additional "virtual" devices I'd appreciate it. That way I can work on the other side, configuring my MQTT client to monitor the setup.

Thanks in advance,

Hi, I am new to the forum and I need some advice on a problem that keeps popping up with my SmartSolar 100/20-48 charge controller connected to a Raspberry Pi.

Let me start off by saying that I am running the latest stable firmware on the Raspberry Pi (v2.66). I have also connected my Victron 500A smart shunt and SmartSolar 100/20-48 controller (both are running latest firmware) to the raspberry pi thru a USB adapter on each. The smart shunt works perfectly, and is always connected and transmitting data.

My problem is occurring with the solar charge controller. It will stop sending data to the VRM portal randomly throughout the day and consistently over night. The only way to get data flowing again is to restart the raspberry pi. Then the cycle starts over again.

Could there be some setting I missed in the solar controller that is causing it to stop transmitting data?

Thanks for the help!

I'm trying to read register 800, Serial [char(6)] via Modbus. I'm not sure what this looks like, but I get "Serial: b'508c'" from the following code. Does this look right to you?

from pymodbus.constants import Defaults
from pymodbus.constants import Endian
from pymodbus.client.sync import ModbusTcpClient as ModbusClient
from pymodbus.payload import BinaryPayloadDecoder
Defaults.Timeout = 25
Defaults.Retries = 5
client = ModbusClient('10.186.47.212', port='502')
result = client.read_input_registers(800, 2)
decoder = BinaryPayloadDecoder.fromRegisters \
(result.registers, byteorder=Endian.Big)
Serial = decoder.decode_string(size=6)
print("Serial: ",Serial)

Thank you.

Dear All ,

As far as I understand there is a way to change the inverter lower cut-off values for battery voltage.

when I installed the Inverter I didn't change any of the default settings ( I think, I couldn't get the software to work on my pc ), and now I have an issue with the Inverter not working under 24V when the battery bank gets drained under 24V

The main question is, IF I can change the setting for the lower cut off value from my raspberry pi running the official Generic Venus Device image and uploading data to the vrm of Victron.

and this preferably to be done remotely since I can't physically get to it.

Thank you in advance

The harvester.

I’m monitoring my system with a RPi and keeping the data with MySql. How often should I query my system? Once a minute? Only when there’s a change from the last query? Thoughts?

I've been lurking here for a while and find the idea of running Venus OS (large) on a Pi an attractive option. However, my reading of the history (and documentation) of this impressive project has left me a little bewildered since there are so many options, some of which may now be obsolete.

I have N2K on my boat and have decided to replace some of my ageing electrical installation (from another dutch company :/ ) with the following: Multiplus II (12/3000), 2 x smartsolar MPPT, Smartshunt. My existing LiFePO4 is already protected by my own design BMS which speaks N2k.

It seems that I need to buy a bunch of Ve.direct to USB adapters and a Ve.Bus adapter. For the N2K, its unclear, I assume an available Pi hat - is data flow bi-directional? Will Venus OS pick up my BMS N2K messages and use them or will it prefer the Smartshunt values? Will the smartshunt values make it to the N2K bus so I can use them in my BMS (for comparison and backup)?

Sorry for the variety of questions :) Looking forward to a positive discussion.

P.S. I'm switching my purchasing decision towards Victron due to the open sourcing of Venus. I'm very grateful and find it very freeing to know that I can integrate whatever I want into my system now rather than being stuck with the straighjacket of closed systems offered by competitors

In my RV I am installing VenusOS on a Raspberry Pi 4 and that will go with my equipment. I have another RPI4 that will have a touch screen that I am thinking will also have VenusOS on it to view control the main devices as well as take input from my tanks. Is it possible to see the devices from the 1st RPI on the 2nd RPI GUI? If there are better options on the 2nd device that don't include installing VenusOS and not monitoring the tanks, I am open to that too.

I will have the following devices installed:

- SmartSolar MPPT 150/100

- MultiPlus 12/3000/120-50 120V

- Lynx Distributor

- 2 DIY 12V 310Ah LifePO4 Batteries with JBD BMS.

Hello,

I have one doubt about smartshunt...

I would like to use it in DC only sites, with just an MPPT and maybe a monitoring device (Venus or raspberry). In this situation, if I add a smarshunt to have SOC reading, can I create a bluetooth network and read it trough the MPPT (smart model) or do I need to also connect it via Ve.Direct/ USB to Venus/ raspberry?

Will it appear as a valid Battery Monitor in VenusOS if connected trough bluetooth to the Smart MPPT ?

I am in country with limited product availablity. I ordered for a client two Victron systems. Two BlueSolar MPPT, Two SmartShunts and two LoRaWAN. I realize now I should have purchased SmartSolar MPPT and BVM-712. I promised the client Bluetooth and Internet connection for their hotel. My distributor doesn’t carry SmartSolar, Bluetooth dongle or BVM-712. They do however have a BVM-702 but, doesn’t solve the Bluetooth and limited VE.Direct. I hope that Raspberry Pi could solve this issue. Any suggestions?

Hello,

does the new GX Tank 140 work with the Venus OS on the Raspberry pi? I have Firmware 2.66 on a Raspberry pi 3+ and I cannot see anything that has to do with the GX Tank 140. It's connected via USB.

Hi!
I have the Venus Pi, Smart Shunt 500 and the Smartsolar MPPT 100/30. All updated to the latest firmware and connected with the Ve. Connect USB cable.

When I plugged the solar into the Venus I could see it. Later on it has disappered. I think it happened after reBoot or firmware update. The MPPT has not the solarpanels connected yet, but is connected in the battery side.

The Smart Shunt is working correct

Any clue?

Hi,

I am newbie solar nerd, currently living off-grid with non-victron 24V system 7x285Wp(3S,2S2P) panels, 8x100Ah gel batteries in serial-parallel+2x220 victron gel, but it is time to upgrade because I "need" it.

I have place for 15 panels on my roof, so I am planning to upgrade to 48V with two strings (each 7x 450Wp mono panels) with SmartSolar MPPT RS, MultiPlus II-5000, 6x Pylontech US3000C

My first question :
my usual hourly consumption is only 500Wh, so would be more cost effective to add a smaller inverter before the MultiPlusII just to save some watts ?And yes I need the 4000W for some of the machines, but just for a few hours in a week. So can I turn on the power by automatic request on the MPII? If yes , how to do it setting-wise.
Scenario 1 : I am using my usual 500Wh but I want to do the laundry which eats 3500W at the start, so I need the power of MP-I

Scenario 2 :My batteries are below the low limit e.g.30%, so I want MP-II to turn on to charge them.

My second question :
Is Cerbo needed if I want to read multiple tanks and other measurements or it can be done directly just with RPi via com port?

HI

I am looking to gather the data in my Home Assistant Dashboard for the Orion-TR smart 12-12 30AD c-DC I know that the data is fed with the Bluetooth but Victron don't give us the possibility to connect to I was thinking adding an additional Shut at the output of the DC-DC with the Ve-cable

- It this feasible?

- Will it disturb the overall electrical system?

- If yes, will the additional shut be displayed on the RaspberryPI 7 inch screen?

- If yes, will it be possible the get the information via the MQQT mapping

[image]

I have a small solar remote off grid setup with a Victron 75/15 MPPT. While sun is limited in winter I have a DC timer hooked up for disabling the load during most of the day. To track battery voltage and solar yield, I have Venus OS on a RPi installed. While the RPi also consumes load, it is not connected permanently (so it is placed after the timer). This is no option. It would drain the battery. Same for 4G router, and some small DC equipement. I noticed that when the setup is ‘on’ I can see stats on VRM but that seems to only show data from within the on-time frame. Via VictronConnect I can also connect to Venus OS and the MPPT and within the MPPT environment I can see all 24h data. Do you know why this is not synchronized with VRM?

Or is there an option to do so? Hope someone can help!

12 volt 20ah Lifepo4 battery - 60w panel - DC timer - VRM - RPi - Venus OS - 4G router

hello and good morning,

my first Q on this forum!

have a system with a BMV700, a MPPT 100/30, 600W solar and 4XT105RE Τrojans and a 8KW diesel generator all working fine on a motorboat (there's also an alternator as well charging via Sterling advanced regulator).

Last season I replaced my Phoenix charger with a s/h Phoenix Multiplus 24/3000/70 with a firmware 14XXXX (will confirm that later on today and post a pic) and a single RJ45 socket on the PCB saying control (on it's lefthand side)

Anyway, my local installer helped me with a MK2-USB (as it turns out!) and VEConfig to set it up. All working fine, no issues.

Now, bought and setup a Raspberry pi 3B+ and 2 VE.Direct-USB cables, hooked them all up, setup my VRM Portal account and all's fine.

Having forgotten that he'd used a MK2-USB cable and having gone through all the literature on your site, I wrongly assumed I had a newer version VE.Bus compatible Multi and bought a MK3-USB cable wired it all up and unsurprisingly Venus doesn't read/know of the Multi :-(

So, after all this intro my simple Qs are:

A. is it possible to somehow connect this non VE.Bus Multi to Venus and get the proper functionality/reports?

B. what is the protocol used in this "control" RJ45 socket? any info/board/software that I could play with?

C. if there's no luck with A and B, is there any other (cheap) h/w I can add to the system to monitor AC consumption (well preferably generator in, system out)

I don't care about the remote control functionality, and using the boat installed home automation system I do turn off the multi when boat unoccupied for x hours, so I'm fine in this respect. What I want is monitoring AC usage only.

(I understand that the MK3-USB will either go to ebay or kept for my next Victron piece of h/w most likely a BMS for LiFePO4 in 2021 or 2022!)

cheers

Vassilis

Hi,

I’ve currently got a ‘Blue Sea 7603 - 10A BatteryLink Charger’ and an APC UPS. I purchased the Blue Sea because it can use AC shore power to charge two isolated battery banks with a 3 Stage 10A battery charger but also it can use DC power from the alternator to charge both the Start and the Auxiliary battery through an integrated 65A ACR (Automatic Charging Relay - Automatically combines batteries during charging, isolates batteries when discharging and when starting engines).

The problem with it though is that there is no monitoring or visibility of what's going on apart from a panel mount 'display' consisting of a couple of LEDs. I've recently had a problem with my Auxiliary battery not seeming to hold charge and I'm struggling to troubleshoot and having to use a multimeter, etc.

I recently learnt that the MultiPlus 12/500/20-16 has a second output intended for charging a starter battery albeit limited to 1A. Therefore would a MultiPlus and a Cyrix-ct be a suitable replacement for the Blue Sea and an APC UPS?

I've added a SmartShunt, VE.Direct to USB Interface (for the SmartShunt), MK3-USB (for VE.Bus on MultiPlus) and a Raspberry Pi with Venus OS to meet my requirement of greater monitoring and visibility of what's going on. However how will I know the status of the Cyrix-ct?

Is there a panel mount display which can interface to my configuration?

Thanks in advance for your advice.

Regards,

Paul.

Hi all,

I am using a SmartShunt 500a with a Victron temperature sensor for my battery in a motor home. Now I want to monitor the voltage of the starter battery, too.

Can I connect the SmartShunt to the starter battery in addition to the temperature sensor? If not, what do you recommend?

The temperature is provided via VE.network for a SmartSolar MPP 100/50 controller. Also both are connected via VE.direct USB cable to a Raspberry Pi with Venus OS and 7“ touch screen.

Thanks!