Tag Archives: KNX

Raspberry Pi: EIB/KNX IP Gateway and Router with knxd

Hi,

in my previous posts EIB/KNX Router with an USB Interface and KNX/EIB Router with a TPUART module I described how to use a Raspberry PI as EIB/KNX Router with eibd.

eibd is no longer in development so I decided to give knxd, a fork of eibd, a try:-) The script attached at the end of the post is written for raspbian but should also work an all debian system with systemd imit system.

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Raspberry Pi: eibd with a KNX USB Interface

Hi,

a reader of my post asks me if it possible to connect the eibd bus with a KNX USB Interface instead of the TPUART board.  These interfaces are available by several vendors(Siemens, Gira, Merten etc.).

I have no KNX USB Interface for testing and therefore Bastian Herzog did that part and supports me to improve the script. Very special thanks to him. Together we have get this started.

As descripted in the previous post setup your Raspberry Pi with raspbian:
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Raspberry PI: EIB/KNX IP Gateway and Router

Hi,

this Post is a tutorial to build an IP EIB/KNX Gateway based on a Raspberry Pi completely from the scratch. The core components are the eib daemon from the bcusdk in conjunction with the TPUART EIB Bustranceiver module.

The Hardware

3 components are needed:

  • A Raspberry PI
  • A EIB Buscoupling Unit
  • Adapter Board to connecting both

You can use A or the B Model of Raspberry Pi. The eibd daemon has minimal hardware requirements.

There are two possibilities for connecting a computer to the EIB/KNX Bus over a RS232 serial interface. Both are supported by eibd.

  • Buscoupler 2 with FT12 protocol
  • TPUART module

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EIB/KNX: Upstart startup script for eibd

Hi,

as a follow up of the 2 previous posts(compiling eibd and SysV startup script) here is a sample Upstart script for the eibd daemon. Some Ubuntu based distributions uses the upstart start mechanism.

Login as root at your machine where eibd is installed and add a user under  which the eibd process should run.

useradd eibd -s /bin/false -U -M

Create the upstart conf file /etc/init/eibd.conf

#######################################################################
# eibd - startscript for the eibd daemon
description "eibd daemon Upstart script"
author "Michael Albert info@michlstechblog.info"

start on (filesystem or resume)
stop on (suspend or runlevel [!2345])
expect fork
normal exit 0

pre-start script
route add 224.0.23.12 dev eth0 2>&1 > /dev/null || true
end script

script
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/bin/eibd
DAEMON_OPTS="-d -D -T -R -S -i -u --eibaddr=1.1.128 ipt:192.168.56.1"
exec start-stop-daemon --start -c eibd --exec $DAEMON -- $DAEMON_OPTS
end script

post-stop script
route delete 224.0.23.12 2>&1 > /dev/null || true
end script
#######################################################################

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