dbus-open-evcc

Integrate EVCC charger into Victron Venus OS

Purpose

This script supports reading EV charger values from EVCC. Writing values is not supported right now

Install & Configuration

Get the code

Just grab a copy of the main branche and copy them to a folder under /data/ e.g. /data/dbus-evcc. After that call the install.sh script.

The following script should do everything for you:

wget https://github.com/jlegen/dbus-evcc/archive/refs/heads/main.zip
unzip main.zip "dbus-evcc-main/*" -d /data
mv /data/dbus-evcc-main /data/dbus-evcc
chmod a+x /data/dbus-evcc/install.sh
/data/dbus-evcc/install.sh
rm main.zip

⚠️ Check configuration after that - because service is already installed and running and with wrong connection data (host) you will spam the log-file

Change config.ini

Within the project there is a file /data/dbus-evcc/config.ini - just change the values - most important is the deviceinstance under "DEFAULT" and host in section "ONPREMISE". More details below:

Section	Config value	Explanation
DEFAULT	AccessType	Fixed value 'OnPremise'
DEFAULT	SignOfLifeLog	Time in minutes how often a status is added to the log-file current.log with log-level INFO
DEFAULT	Deviceinstance	Unique ID identifying the charger in Venus OS
ONPREMISE	Host	IP or hostname of EVCC

If you have two load points in EVCC

1. Follow the installation instructions above, but change the commands as follows:

   wget https://github.com/jlegen/dbus-evcc/archive/refs/heads/main.zip
   unzip main.zip "dbus-evcc-main/*" -d /data
   mv /data/dbus-evcc-main /data/dbus-evcc-1
   chmod a+x /data/dbus-evcc-1/install.sh
   /data/dbus-evcc-1/install.sh
   rm main.zip
   

   (Count up dbus-evcc-1 for each loadpoint)
2. Update the dbus-evcc-1/config.ini:
   • The deviceinstance should be different for each loadpoint: Use 43 for the first. Use 44 for the second loadpoint...
   • The loadpointInstance should be different for each loadpoint: Use 0 for the first. Use 1 for the second loadpoint...

If you have more than two loadpoints, the procedure is the same, but the indexes should be counted up.

Useful links

Many thanks. @vikt0rm, @fabian-lauer, @trixing and @JuWorkshop project:

• https://github.com/trixing/venus.dbus-twc3
• https://github.com/fabian-lauer/dbus-shelly-3em-smartmeter
• https://github.com/vikt0rm/dbus-goecharger
• https://github.com/JuWorkshop/dbus-evsecharger