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1Step 1
Get the components we recommended or some alternatives for them.
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2Step 2
Prepare Arduino Uno board for connection.
Connect RFID device to Arduino board as follows for the code to work:
- 3.3V RFID pin to Arduino 3.3v;
- RST pin to Arduino pin 9;
- GND pin to Arduino GND pin;
- IRQ is not connected;
- MISO pin to Arduino pin 12;
- MOSI pin to Arduino pin 11;
- SCL pin to Arduino pin 13;
- SDA pin to Arduino pin 10.
Connect the LCD interface to Arduino board as follows:
- 5V LCD pin to Arduino 5v;
- GND pin to Arduino GND pin;
- SCL pin to Arduino analog pin A5;
- SDA pin to Arduino analog pin A4;
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3Step 3
Load the Arduino code provided after properly installing the libraries on your system:
https://github.com/adafruit/Adafruit_LiquidCrystal
http://playground.arduino.cc/Learning/MFRC522 -
4Step 4
The device is ready to use by approaching the chip and print on the LCD the required message.
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