I'm starting this topic to group the problems encountered with my rfid2ln interface (the RFID Träume topic is more appropriated for general discussions, not debugging).
First problem was Gerard's, so I'm starting with it, trying to help him.
reading once again your post, it looks to me that all things are OK (from the hardware point of view). It seems also that you are quite comfortable with Arduino and wire connections.GRemmerswaal wrote: with a proper LN interface and made the RX, TD and GND connections to the Arduino with some wires...
I checked it with other software in the Arduino. With this software the Arduino will react as a kind of LocoIO...
I have mounted the RX connection from the LN interface to pin 8 and the TX connection to pin 7.
Unfortunately, since I'm just using someone's else library, I'm not sure where to start.
First idea is to test the examples coming with the mrrwa library. My first tests where done with the LNMonitor sketch. May you test this sketch first?