From diyBMS to Grafana using a Pi3 with Home assistant - Lost!

Starting from zero knowledge i find it very difficult to follow the tutorial
( Visualize data from the diyBMS · stuartpittaway/diyBMSv4 Wiki · GitHub )
because of the part that says: “I assume you have done following”

These addons are really horrible and not intuitive to configure…

After a few weeks of reading, research and stuff i am a bit stuck, no data on grafana…

So what i have done so far…

Diybms controller 4.2 testbench with 1 cell and a 4.0 module

MQTT enabled in integration, user: mqtt-user pw: yes

Pi3 and 32gb sd card

Raspberry Pi Imager Raspberry Pi OS – Raspberry Pi
Specific puspose os, home assistant, home assistant
Addons: Grafana 9.1, influxdbv2 (NOT influxdb), Mosquitto 6.3.1, Node-RED 14.6.2

To create a user in Mosquitto you create a new user in home assistant,
Config, user, add user: mqtt-user pw: yes
Restart HA so the auto-discovery works.

In Config, devices i can configure MQTT and put the right user (again?#@?)
In this config mqtt page i can listen to the Diybms messages
Listen to a topic: # then start listening and it works.

{“voltage”:4.0180,“vMax”:4.0180,“vMin”:4.0170,“inttemp”:25,“exttemp”:-40,“bypass”:0,“PWM”:0,“bypassT”:0,“bpc”:0,“mAh”:0}

Next item on the list is node-red.
“Setup NodeRED server and make a connection to Mosquitto server. You can test that you get data by drawing a connection between the MQTT node and a debug node.”

So i have a mqtt connected to a debug and then what?
in the properties of the mqtt node the options are:
add new mqtt broker ( wtf again?#@?) ip usr pw…
topic diybms/# (WTF does not work without /# i misread the instructions now my bad)
qos 0

so mqtt is working on the debugging window of node-red

In InfluxDBv2 i follow the instructions
Also in grafana
but no data comes up.
I will be adding a few more steps i did because i just now realized that influxdb and influxdbv2 is not the same thing.

Instructions that i used so far…
https://www.youtube.com/watch?v=dqTn-Gk4Qeo for mqtt
https://www.youtube.com/watch?v=fkrbcnp8wpI for node red
https://www.youtube.com/watch?v=eJ-XE2tsD4U for influx

2 years later, let’s try this again. Sad to see that nobody gives a f…

influxdb v2 (not the included influxdb on version 2) Home Assistant Add-on: InfluxDB v2 - Home Assistant OS - Home Assistant Community

I don’t even remember why influxdb v2.0 as instructed does not work or maybe i was wrong all along…

New install of nodered needs ssl disabled or: warning: unable to start service init-nginx

5 more hours to get to this point

an eternity later…

i need to do it all again and on another pi because it keeps rebooting every time i open grafana dash, and the only other thing i have is my inverter on esphome…

What makes you think this? Please remember that almost everyone who contributes knowledge here is doing so because they think it will help somebody. No one is under any obligation to do so. Have you considered that maybe, nobody has successfully done exactly the same thing as you are attempting, so there’s nobody who feels qualified to advise you? I’m sorry to have to say this, but your attitude might just turn somebody away who might have been willing to help.

sorry that was a bit harsh, but this is how i feel about this specific mqtt subject.
I have seen many that made it work and i am just frustrated for not being able to.
Many hours lost for nothing, getting stuck in configurations that should be simple are messing with my head.
I have the most respect for this project, it is why i always share my discoveries and why i started this topic on the mqtt journey.