Serial string sum comparison

Projects Programming
10

I'm newbie here, sorry! lol!!

#include <stdio.h>
#include <string.h>

int i;
int enablePin = 6;
int address;
int addcomp;
char addressch;
String comrx;

void setup()
{
  Serial.begin(19200);        // initialize serial at baudrate 9600:
  Serial.setTimeout(30);      // set serial timeout
  pinMode(enablePin, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(9, INPUT_PULLUP);      // Pin Dip-Switch(1) - address MSB
  pinMode(10, INPUT_PULLUP);     // Pin Dip-Switch(2)
  pinMode(11, INPUT_PULLUP);     // Pin Dip-Switch(3)
  pinMode(12, INPUT_PULLUP);     // Pin Dip-Switch(4) - address LSB
  Serial.println("Boot OK");

  // convert bits from dip switches to an internal address 0-15
  address = byte((!digitalRead(9) * 8) + (!digitalRead(10) * 4) + (!digitalRead(11) * 2) + !digitalRead(12));
  Serial.println(address);
  Serial.println(address, HEX);
}

void loop() {

  if (Serial.available() > 0)
  {
    comrx = Serial.readStringUntil('\r'); // supposed to receive from COM PORT: "Txx\r" where xx = 00 to 15
    Serial.println(comrx);

    for (int i = 0; i <= 15; i++)  {
      char s [10];
      sprintf (s, "TO%d", i);
      printf (" %4s %4s %4d\n", comrx, s, strcmp (comrx, s));
    }

    int  n;
    sscanf (comrx, "TO%d", & n);
    printf (" n = %d\n", n);

    return 0;


    // IF STRING "Txx\r" where xx is the INTERNAL ADDRESS, the unit should report this string out to the COM PORT (RS-485)
    if
  {
    delay(50);
      digitalWrite(enablePin, HIGH);
      delay(10);
      Serial.println("Temp=");
      delay(200);
      digitalWrite(enablePin, LOW);
    }

  }


}