I have just started using arduino, so have a lot of doubts coming up.
I am interfacing pro mini with RFID ID-2 with external antenna...
I am using the Wire library.
I wanted to know how do I find out the
address of the RFID; the length ; the reset reader and checksum which is to be given in the code as follows :
Wire.beginTransmission(0x42); // the RFID reader's address is 42
Wire.send(0x01); // Length
Wire.send(0x80); // reset reader
Wire.send(0x81); // Checksum
could you help me out.