Help choosing a KNX / Arduino board ?

[Shane24]

Please forgive me if this has been answered.
I have my Arduino Uno controlling a RGB LED.
I want to have the Arduino as a device on the KNX Bus, but I want to be able to turn on and off the LED by pressing another button on a KNX device.

Can the KNX Arduino boards accept an input from the KNX bus and then turn on and off a LED strip ? If it can accept an input from the bus I can program the LED to turn on and off.

Any advice?

Thanks!

[Albatros62]

Solving your problem is actually very simple. You only need an Arduino and a BCU, e.g. this one or a MicroBCU described in the forum. If you install the Konnekting-Lib you will find a suitable demo sketch there, which you may have to adjust a little. More information here.

[Ing-Dom]

The most simple way ist this lib: https://github.com/franckmarini/KnxDevice
With Konnekting you can program group adresses and parameters with a separate tool called Konnekting Suite (like with ETS).
For ETS support you can choose the way more complex solution https://github.com/thelsing/knx (not on Uno).

For 5V Uno I recommend using Siemens BCU

[Shane24]

Can I use one of the KNX Arduino boards?
Thanks !

[Shane24]

So I could use an button press (input) from another KNX device and it could trigger the LED attached to the Arduino and turn on and off ??

[Albatros62]

Can I use one of the KNX Arduino boards?

Which KNX Arduino boards do you mean? I do not know any.

[Albatros62]

Under Konnekting-> Learn you will find the circuit of an Arduino and a Siemens BCU. The description is in German. The Google Translator can help here . The wiki is in English.

If you install the Konnekting-Lib in the Arduino IDE, you will find exactly what you are looking for under "Examples".

[Shane24]

wanted to also say thank you for the advice above. I don’t have the Siemens piece so I have to buy one of the three boards available. Would one of these also accomplish this??


KNX Arduino Shield - ON Semiconductor | DigiKey



Thank you!

[odysee_2002]

You could also use something like this:
https://knx-user-forum.de/forum/proj...chte-luftdruck

It costs ~ 10€ and 8€ for the namo BCU.
You can't get it cheaper..

BR Andreas