Id like to use a KNX input from a wall keypad to start/stop code on the Arduino Uno.
There are three Arduino KNX shields available (TP-UART, SPI) but I have no clue which might work.
I have a few LED programs that display different LED animations, so a short press from a KNX keypad could initiate one LED program, the second short press, the next LED code, and the third short press could stop it.
I am very familiar with KNX, but adding the Arduino is new to me.
Help is greatly appreciated.