Comparing strings

Projects Programming
18 
#define RX_PIN 0
#define LED 7
#define LAUNCH_PIN 13

char launchCode[] = "123BOOM";

//message handling variables
#define BUF_SIZE 30
char newMessage[BUF_SIZE];

void setup() {
  pinMode(LED, OUTPUT);
  pinMode(LAUNCH_PIN, OUTPUT);
  Serial1.begin(9600);
 
}

void loop() {
  //check for new messages
  if (Serial1.available()) {
    readSerial();

    Serial.print(newMessage);
    Serial.println();
     
    if (strcmp(launchCode, newMessage) == 0) {
      launchProcedure();
    }
  }
}

void readSerial(void) {

  Serial1.readBytesUntil('\n', newMessage, BUF_SIZE-1);
  
}

void launchProcedure(void) {
  Serial.print("Launch initiated!!");

  // Initiate countdown
  for (int i = 1; i <= 10; i++) {
    //Countdown warning LED blink sequence
    digitalWrite(LED, HIGH);
    delay(500);
    digitalWrite(LED, LOW);
    delay (500);
  }

  digitalWrite(LAUNCH_PIN, HIGH); //Switch voltage to starter to high and ignite rocket motor
  delay (5000);
  digitalWrite(LAUNCH_PIN, LOW); //Switch voltage to starter to low after launch
  newMsgReceivedstate = false;
}