I'm currently working on a school project. My goal is to develop a Tic Tac Toe like game using nine RFID Readers and an Arduino YUN. The idea is to hold a tag on the RFID sensor and a X or an O will appear on the monitor at the right place.
I have pretty much finished this project, but I still have one big problem. All the readers hardly ever work, although it worked twice, most of the time only 5 to 6 of them are functioning.
I have no clue what the problem is. The readers are not defect i tested them and my Arduino has enough power. I used the MemoryFree library to determine whether the controller had enough ram.
I would be really glad if somebody could help me.
I attached the circuit and my Code for the arduino. Note that I used an Arduino YUN the one in the image is and Arduino UNO, the only difference is that I had to use other pins for the serial connection.
_9rfid_readers-optimiert.ino (1.51 KB)