New answers tagged rfid
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The MFRC522 on your kit is designed to communicate with ISO/IEC 14443 A/MIFARE and NTAG cards.
Search for Mifare Classic or Mifare Ultralight or NTAG213, NTAG216 ... cards.
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I will skip the RFID part, that is unrelated to the menu.
What you can do is creating two variables:
int menuLevel1 = 0;
int menuLevel2 = 0;
Assuming you have 2 levels, if you have more levels consider an array.
Now you can print the screen based on the values of these two variables (use a switch statement for menuLevel1 which calls new functions, each ...
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Try using this code:
#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h>
#define SS_PIN 10
#define RST_PIN 9
#define SERVO_PIN 3
Servo myservo;
#define ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
Serial.begin(9600); // Initiate a serial ...
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