Add DaheimLaden charger

[utsavanand2]

Integration with DaheimLaden charging stations with it's REST API

Description

This PR implements the methods on the skeleton recommended by @andig.
Any recommendations for improvement and making the code more readable are welcome :)

[utsavanand2]

Thanks for the review @andig

[andig]

Ping

[andig]

/rebase

[andig]

LGTM apart from the strange timeout setting- that needs be fixed

[utsavanand2]

Hi @andig :)
Does it look good to you?

[utsavanand2]

Once everything seems good to you, before we do the final merge to master, I'll make sure that I change the BASE_URL back to the production endpoint i.e. https://api.daheimladen.com/v1 instead of https://beta.api.daheimladen.com/v1

[scrub11]

As a request from andig, I apply here for an implementation of my wallbox. I apologize if I posted in the wrong place - if that is the case, please help me out. Thank you in advance.

Current state of my progress:

• Wallbox ready and waiting.
• Running Raspi with evcc v .54
• Some issues with configuring my evcc.yaml

What comes up next?

[andig]

What comes up next?

If you have a working config you can try this binary and add your charger to the config.
evcc.gz

[utsavanand2]

Hi @scrub11 :) I'm Utsav from Daheimladen.
You're at the right place.
I believe you have the daheimladen wallbox?
Do you have an account created at https://daheimladen.com ? If so could you please send me your email address that you used to register so I can provide you with a token that you would need for the evcc yaml config?

[scrub11]

@andig
Ok, I will try and get my config working.

@utsavanand2
Send you an email. :)

[scrub11]

I am on it today and I have two questions:

• What am I doing with the binary, you gave me, @andig ?
• What is my chargingstation-pile-number? Software version? Serial number?

Thank you in advance.
@utsavanand2: Thank you, received your email. :)

[utsavanand2]

I am on it today and I have two questions:

• What is my chargingstation-pile-number? Software version? Serial number?

Hi @scrub11 !
It will be your software serial number displayed on the display of the wallbox, specifically for you it must be ending with: xxxxxxxxxxxx990

[scrub11]

Hi @utsavanand2:
Thank you for your quick reply, I found it.

[utsavanand2]

I am on it today and I have two questions:

• What am I doing with the binary, you gave me, @andig ?

PS: As I have the time to look at this today, I would take the liberty to help out @andig with this question. Please feel free to correct me if I'm wrong @andig ;)

@scrub11 The compressed file ending with .gz that Andreas provided you with when uncompressed will give a binary file that is the executable you will be running on the raspberry pi.
I am assuming you have enough technical know how as you own a Pi ;), if not I would be happy to help in every step of the way.

Probably the next thing to do here would be to add the configuration to the PV system you own. You can check the list of the meters supported here and add them to the evcc.dist.yaml .
Next add the daheimladen charger to the yaml as I described here.
Now you can transfer both the binary and the evcc.dist.yaml file to the raspberry pi.
Next thing to do would be to allow the evcc binary to be executed, you can do that by running:

sudo chmod +x /path/to/evcc

The last thing to do would be to try and run the evcc binary with the yaml configuration you edited.

/path/to/evcc -c /path/to/evcc.dist.yaml

[scrub11]

@utsavanand2: Thank you very much, thanks to your advice I got it up and running so far! :)

[andig]

@scrub11 I undestand the DaheimLaden integration is working and we can merge it now?

[scrub11]

I don't know if I really understand what you mean. I used your zipped binary and put it on my Raspi. As you know from the other discussion, I still encounter some unsolved issues. Due to that I cannot tell you if the complete integration is working... EVCC seems to work, or, to be more precise, it's diagnostic tool seems to work.
More I cannot confirm at this very moment. I hope it nevertheless helps you along.

[ExecuteGK]

Good afternoon,
would it be possible to get a latest test build for x86-64 and a valid token in order to test the implementation? I suffer errors when compiling and I am not really a go expert.

I have a working config for a phoenix contact wallbox and the E3DC PV / Battery / Grid. The daheimladen V1 is not yet integrated, but should join latest when our BEV will arrive.

Best Regards and thank you for the great work.

Sebastian Dietz

[andig]

Binary kommt morgen… Welches OS?

[ExecuteGK]

Ubuntu server.
Hab aber gerade nochmal gebastelt und siehe da hab jetzt ein binary.
Warum das die letzten 2 Stunden nicht wollte, keine Ahnung. War Vermutlich Blindheit..... oder Überlastung durch die Kinder....

Der Api key fehlt allerdings noch von daheimladen.....

[utsavanand2]

Hi @andig ! I just realised that when I run these commands:

git clone https://github.com/evcc-io/evcc.git
git checkout feature/daheimladen

Then it doesn't contain the latest changes that we made. But it does show up in the Files changed tab at the top.
Do you have any ideas what am I doing wrong?

[andig]

Strange. What does git log say?

[utsavanand2]

@andig This is what I see, seems to be in line with what Github is saying in the commit history at the top

[andig]

Looks as expected. What exactly are you missing?

[andig]

Just checked the code- PR looks as I would expect?

[utsavanand2]

@andig Yes the PR looks just fine. I believe we can merge it now based on the user test results?

Looks as expected. What exactly are you missing?
When doing this:

git clone https://github.com/evcc-io/evcc.git
git checkout feature/daheimladen

I was able to see my previously made changes like seeing the timeout set to 0, but in the later commits I had them removed. But I guess its not showing up probably because of some user permissions, the previous ones were showing up because of your rebase (which was your commit), this might be the reason why I couldn't see those changes in git checkout but in my repo.