Rademacher Duofern without fhem, but pyduofern-server

Tutorials & Examples Solutions
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Hi,

I want to share my Rademacher Duofern solution that works without a FHEM installation, but the simpler pyduofern-based pyduofern-server turned into an item via the http binding.

It works via a number item to poll the webhook, a virtual rollershutter to receive the UP/DOWN/STOP events (the http binding does not support rollershutters natively):

Number KleinesZimmerRolladen_Value "Kleines Zimmer Rolladen [%.0f %%]" <Blinds>  { http="<[http://pyduofern-server:8080/devices/400209/position:5000:JS(parseInt.js)]" }

Rollershutter KleinesZimmerRolladen “Kleines Zimmer Rolladen [%.0f %%]”

and two rules to copy value from the number to the shutter item, and to implement the commands: https://github.com/sttts/pyduofern-server/blob/master/openhab/rules/duofern.rules

All the config is available at https://github.com/sttts/pyduofern-server/tree/master/openhab.

At the end, it looks and behaves like a native roller shutter, including blind position visible via the icon:

openhab
openhab.png442×786 41.6 KB

Best regards,
Stefan

1 Like
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Hi Stefan,

thank you for sharing this setup.
I think this coul be an interesting solution. I am still looking how to integrate my Rademacher blinds into OH, and I don’t want to install also FHEM as a second system in parallel.

But now I am stuck with the Duofern stick.
It seems that the Rademacher USB Stick 70000093 Typ 9495-UW is not realy available at any shop. Is it discontinued?
Mainly I see the Rademacher USB Stick Z-Wave 8430, but that seems to be something different, newer generation? Do you know, if that also can be used?

Lg Holger

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Hi Stefan,

Your implementation seems to fit my requirements and would help me getting rid of FHEM | Homepilot.

My goal is to control my 3 Rollotron Duofern devices (2x Plus 1405, 1x Basis 1100) from Openhab 2.5 (Ubuntu 18.04, Python 2.7 / 3.6). I have done a fresh installation of pyduofern, the devices are paired through the Duofern USB Stick, and can be moved up/down using duofern_cli.py

Now I would like to install your pyduofern-server. Unfortunately I’ve little Linux experience and have never used docker before.

Is there a simple recipe I can follow to install this package and it’s requirements?

Thanks for sharing!

1 Like
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Thank you, very interesting! But what steps are necessary to install the underlying software? Is there somewhere an instruction / a tutorial which shows what steps are neccessary? (e.g. install python, docker, etc.).

Thank you!

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Hello Robert,

Docker instructions can be found at https://github.com/sttts/pyduofern-server.

This is how I run it, using k3s on Raspberry Pis:

Best regards,
Stefan

1 Like
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Hi Stefan,

I have no experience at all with Docker and K3S and need some detailed instructions to get my system running.

I use now a Rademacher HomePilot with the Duofern-Stick. As I have openHAB 2 running on RPi4, I want to eliminate the HomePilot and install the pyduofern-server on a RPi3b+ which runs Debian Buster in order to control my 15 rollershutters with openHAB.

On this Rpi3b+ I have installed Docker and Docker Compose.

How should I install K3S?

Where should the pyduofern-server.yaml file be saved and what are the commands to start the server?

I downloaded the zip file on https://github.com/sttts/pyduofern-server

Where should I save the files main.py .gitignore Makefile and requirements.txt ?

How should I do the CleanUp of docker image using all these files?

How does the pairing sequence work in detail?
( $ docker run -it --rm --name pyduofern-server --privileged docker.io/sttts/pyduofern-server:latest --code --device /dev/ttyUSB0 --pair --pair-time 120 )

Are the 6-digit hex Duofern-Codes from the motors needed for the pairing?

Is there anything else I need to install?

Thanks in advance and best regards.

Nico