I have bought a RFID writing and reading module. Unfortunately, it is for an Arduino. The following link will show the manual: http://www.produktinfo.conrad.com/daten ... ND_WRI.PDF.
Now I am trying to find a way to connect the device to my Raspberry Pi 3 Model B V1.2. How do you guys find out which connection on the RFID device belongs to which GPIO on the Raspberry?