Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and GND to the ground rail. For the data connections, wire SDA to Pin 10, SCK ...

Next you will prompted which ASCII character you want to view, enter a ASCII character or simply press enter to start at start of ASCII table The chosen segment will now be displayed step thru it by ...