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Boiler integration in Domoticz with Ebusd

Connect a gaz boiler to a Domoticz system using Ebusd

Introduction

The goal of the project is the integration of a Saunier Duval boiler with a Domoticz home automation system.

Ebusd adapter
Ebusd adapter
Ebusd adapter
Ebusd adapter

Hardware

Ebusd adapter
Ebusd adapter
Ebusd adapter
Ebusd adapter

Software

Ebus gateway

Download EspTool :

git clone https://github.com/espressif/esptool.git
Go in the folder :
cd esptool/
Download the latest ebus-ESP firmware for our Wemos :
wget https://github.com/john30/ebusd-esp/blob/master/dist/ebus-v2_d1mini.bin
Plug your Wemos and flash the firmware :
python esptool.py --port /dev/ttyUSB0 write_flash 0x00000 ebus-v2_d1mini.bin
Then reboot the Wemos and :

  • Connect to the “EBUS” wireless network
  • Open a web browser and go to http://192.168.4.1
  • Adjust settings as below :
    Ebusd settings
    Ebusd settings

Your Wemos WLAN Ebus gateway should be ready !

Ebusd : Ebus daemon

Download the Ebusd package (here for Raspberry Pi) :

wget https://github.com/john30/ebusd/releases/download/v3.0/ebusd-3.0_armhf.deb
Install it :
sudo dpkg -i ebusd-3.0_armhf.deb 
Then download the latests configuration files :
git clone https://github.com/john30/ebusd-configuration.git
And copy them :
sudo cp -r ebusd-configuration/ebusd-2.1.x/en/* /etc/ebusd/
Then configure ebusd :
vi /etc/default/ebusd 
Here is my configuration (to be adapted) : /etc/default/ebusd
config file for ebusd service.

Options to pass to ebusd (run "ebusd -?" for more info):
EBUSD_OPTS="--scanconfig -d 192.168.10.14:9999 --httpport=9999 --latency=20000 --loglevel=error"

MULTIPLE EBUSD INSTANCES WITH SYSV
In order to run multiple ebusd instances on a SysV enabled system, simply
define several EBUSD_OPTS with a unique suffix for each. Recommended is to
use a number as suffix for all EBUSD_OPTS settings. That number will then be
taken as additional "instance" parameter to the init.d script in order to
start/stop an individual ebusd instance instead of all instances.
Example: (uncomment the EBUSD_OPTS above)
#EBUSD_OPTS1="--scanconfig -d /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A50285BI-if00-port0 -p 8888 -l /var/log/ebusd1.log"
#EBUSD_OPTS2="--scanconfig -d /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A900acTF-if00-port0 -p 8889 -l /var/log/ebusd2.log"
#EBUSD_OPTS3="--scanconfig -d /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A900beCG-if00-port0 -p 8890 -l /var/log/ebusd3.log"

MULTIPLE EBUSD INSTANCES WITH SYSTEMD
In order to run muiltiple ebusd instances on a systemd enabled system, just
copy the /usr/lib/systemd/system/ebusd.service file to /etc/systemd/system/
with a different name (e.g. ebusd-2.service), remove the line starting with
'EnvironmentFile=', and replace the '$EBUSD_OPTS' with the options for that
particular ebusd instance.

Domoticz plugin

First of all, we need to upgrade to the last Domoticz Beta version:

cd domoticz
./updatebeta
Then go in the Domoticz folder for plugins :
cd plugins/
And download files :
git clone https://github.com/guillaumezin/DomoticzEbusd
Set the right permissions :
chmod ugo+x DomoticzEbusd/plugin.py
Restart Domoticz :
sudo /etc/init.d/domoticz.sh restart
Then configure it with the web interface as below :

With this configuration :

Domoticz settings
Domoticz settings

Domoticz settings
Domoticz settings

All done !

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