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#include <SPI.h>
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#include <MFRC522.h>
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#define SS_PIN 10
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#define RST_PIN 9
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#define CHECK_BIT(var,pos) ((var) & (1<<(pos)))
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MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
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#include <LiquidCrystal_I2C.h>
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//LiquidCrystal_I2C lcd(0x38, BACKLIGHT_PIN, POSITIVE); // Set the LCD I2C address
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LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address
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const int RFIDled = 6;
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const int RFIDSound = 5;
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const int RFIDbin = 3;
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const int signalIN = A0;
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const int TextKnob = A1;
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const int textSound = A2;
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long randNumber;
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void setup()
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{
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Serial.begin(9600); // Initiate a serial communication
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SPI.begin(); // Initiate SPI bus
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lcd.begin(16, 2); // initialize the lcd
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mfrc522.PCD_Init(); // Initiate MFRC522
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Serial.println();
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pinMode(RFIDled, OUTPUT);
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pinMode(RFIDSound, OUTPUT);
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pinMode(RFIDbin, OUTPUT);
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pinMode(signalIN, INPUT);
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pinMode(TextKnob, INPUT);
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pinMode(textSound, OUTPUT);
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}
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void readCard() {
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// Look for new cards
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if ( ! mfrc522.PICC_IsNewCardPresent())
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{
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return;
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}
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// Select one of the cards
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if ( ! mfrc522.PICC_ReadCardSerial())
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{
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return;
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}
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//Show UID on serial monitor
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Serial.print("UID tag :");
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String content = ""; // for tag + sound
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String binary = ""; // for binary + LED
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for (int i = 0; i < mfrc522.uid.size; i++)
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{
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Serial.print(mfrc522.uid.uidByte[i], DEC);
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content.concat(String(mfrc522.uid.uidByte[i], DEC));
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if (content.charAt(i) == '0') {
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tone(RFIDSound, 40, 2250);
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delay(100);
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}
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else if (content.charAt(i) == '1') {
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tone(RFIDSound, 15, 2250);
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delay(100);
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}
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else if (content.charAt(i) == '2') {
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tone(RFIDSound, 25, 1500);
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delay(100);
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}
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else if (content.charAt(i) == '3') {
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tone(RFIDSound, 17, 150);
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delay(100);
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}
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else if (content.charAt(i) == '4') {
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tone(RFIDSound, 30, 1000);
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delay(100);
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}
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else if (content.charAt(i) == '5') {
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tone(RFIDSound, 27, 1590);
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delay(100);
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}
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else if (content.charAt(i) == '6') {
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tone(RFIDSound, 28, 1500);
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delay(100);
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}
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else if (content.charAt(i) == '7') {
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tone(RFIDSound, 10, 1500);
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delay(100);
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}
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else if (content.charAt(i) == '8') {
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tone(RFIDSound, 13, 1050);
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delay(100);
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}
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else if (content.charAt(i) == '9') {
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tone(RFIDSound, 7, 1000);
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delay(100);
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}
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}
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for (int b = 0; b < mfrc522.uid.size; b++)
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{
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Serial.println(mfrc522.uid.uidByte[b], BIN);
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char r = mfrc522.uid.uidByte[b];
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for (int j = 8; j >= 0; j--) {
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if CHECK_BIT(r, j) {
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digitalWrite(RFIDled, HIGH);
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digitalWrite(RFIDbin, HIGH);
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delay(100);
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} else {
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digitalWrite(RFIDled, LOW);
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digitalWrite(RFIDbin, LOW);
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delay(100);
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}
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delay(100);
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}
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}
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Serial.println();
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delay(100);
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}
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//Q-code questions
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const char *Qs[] = {
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"",
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"",
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"QRB?:How far are you from my station?",
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"QRL?:Are you busy?",
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"QRZ?:Who is calling me?",
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"QRH?:Does my frequency vary?",
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"QRI?:How is the tone of my transmission?",
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"QRK?:What is the readability of my signals?",
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"QRM?:Do you have interference?",
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"QRN?:Are you troubled by static noise?",
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"QRQ?:Shall I send faster?",
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"QRT?:Shall I cease or suspend operation?",
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"QRU?:Have you anything for me?",
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"QRV?:Are you ready?",
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"QRX?:Shall I standby?",
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"QSA?:What is the strength of my signals?",
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"QSB?:Are my signals fading?",
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"QSD?:Is my keying defective?",
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"QSL?:Can you acknowledge receipt?"
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};
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//Q-code answers/statements
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const char *As[] = {
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"QRH:Your frequency varies.",
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"QRL:I am busy. Please do not interfere.",
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"QRM:I have interference.",
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"QRM:I am troubled by static noise.",
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"QRO:Please increase transmit power.",
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"QRQ:Please send faster.",
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"QRS:Please send more slowly",
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"QRT:I am suspending operation.",
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"QRU:I have nothing for you.",
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"QRV:I am ready.",
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"QRX:Please standby.",
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"QSB:Your signals are fading.",
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"QSD:Your keying is defective.",
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"QSK:I can hear you between my signals (while transmitting); break in on my transmission.",
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"QSL:I am acknowledging receipt.",
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"QSM:Repeat the last telegram which you sent me",
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"QSY:Please change transmission frequency.",
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"QSZ:Send each word or group twice."
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};
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void loop()
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{
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readCard();
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int textnumber;
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int text = analogRead(TextKnob);
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textnumber = map(text, 1, 1023, 0, 18);
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if (textnumber > 1) { //when the knob is turned from the 'position 0'
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Serial.println(Qs[textnumber]);
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String question = Qs[textnumber];
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lcd.setCursor(0, 0); //Set the lcd cursor to the upper left corner
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lcd.print(Qs[textnumber]); //Display the specific Q-question on the fisrt row of LCD
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for (int positionCounter = 0; positionCounter < question.length(); positionCounter++) {
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lcd.scrollDisplayLeft(); //Q-question scrolls to the left
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delay(230);
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}
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char* specQs = Qs[textnumber];
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// loop over each character of question
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for (int a = 0; a < strlen(specQs); a++ ) {
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char c = specQs[a];
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//Serial.print(c);
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//Serial.print(" ");
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Serial.print(specQs[a], BIN);
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//Serial.println();
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// sonify the bits...
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for (int i = 7; i >= 0; i--) {
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if CHECK_BIT(c, i) {
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tone(textSound, 440, 100);
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} else {
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tone(textSound, 220, 100);
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}
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delay(100);
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}
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}
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}
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// give an answer
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randNumber = random(0, 17);
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int readSignal = digitalRead(signalIN);
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String randomQ = As[randNumber];
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if (readSignal) { //If the module receives a signal via A2 o4 input channel...
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Serial.println(As[randNumber]);
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lcd.setCursor(0, 1); //Set the lcd cursor to the lower left corner
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lcd.print(randomQ); //Displayes a random Q-answer from the answers array
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for (int counter = 0; counter < randomQ.length(); counter++) {
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lcd.scrollDisplayLeft(); //Q-answer dissapears in the left side of the LCD
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delay(230);
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}
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}
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Serial.println();
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delay(1000);
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}
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