CODEWITHSUNDEEP
raspberry-piraspberry-pi3knx
Simon Ber
Simon Ber

Reputation: 43

Reading KNX using Raspberry Pi 3 GPIO

My dad wants me to make kind of a smart home.

I would like to interface with KNX (a home automation protocol) using the GPIO on a Raspberry Pi 3. Ideally, I would like to build a web interface for it, but I don't have a clue how to interface with KNX in the first place.

Any suggestions?

Upvotes: 3

Views: 6356

Answers (4)

Fernando Miranda
Fernando Miranda

Reputation: 9

KNX Hat for pi3 and a bunch of other single boardies

Upvotes: -1

Thomas Zeman
Thomas Zeman

Reputation: 910

It wont make sense for you to interpret and understand the KNX bus communication protocol directly. There is a massive specification behind the KNX bus which deals with so many problems from device addresses to collision detection. It would take years to master it and unless you develop KNX devices you really should not spend your time on it. You will be better off by doing the following:

Upvotes: 3

Christoph Bimminger
Christoph Bimminger

Reputation: 1018

I see two options for you:

A) use an IP interface (e.g. the ones from MDT) and access the IP interface from your raspberryPi (e.g. with http://calimero-project.github.io/)

B) use a TPUART controller, which makes KNX TP telegrams accessible (r/w) to UART - see http://www.konnekting.de/konnekting-lernen/l1-knx-mit-arduino/

Upvotes: 0

Cecilio Pardo
Cecilio Pardo

Reputation: 1717

You can't connect the KNX bus to anything on the pi. The KNX bus has its own electrical specs, and you need specialized hardware to connect to it. Such hardware is available, but probably a KNXnet/IP device (such as the Siemens N148) is a better option.

Upvotes: 0

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