Water level monitoring system using Xbee

Projects General Guidance
38

AWOL:
See reply #4

Ok so i think i converted the numbers into int. But why is it that this statement is not satisfied?

if (dataNumber >= 50 )
{
digitalWrite(relay, HIGH);
}

else
{
digitalWrite(relay, LOW);
}

delay(3000);

Here's my full code:

// Example 4 - Receive a number as text and convert it to an int
#include <SoftwareSerial.h>
SoftwareSerial XBee(10, 11); // RX, TX
#define relay 5

int relayPin = 4;  // Pin of Relay Module
const byte numChars = 32;
char receivedChars[numChars];   // an array to store the received data

boolean newData = false;

int dataNumber = 0;             // new for this version

void setup() {
  XBee.begin(9600);
  Serial.begin(9600);
  Serial.println("<Arduino is ready>");
  pinMode(relay, OUTPUT);
  digitalWrite(relayPin, HIGH);
}

void loop() {
  recvWithEndMarker();
  showNewNumber();
}

void recvWithEndMarker() {
  static byte ndx = 0;
  char endMarker = '\n';
  char rc;

  if (XBee.available() > 0) {
    rc = XBee.read();

    if (rc != endMarker) {
      receivedChars[ndx] = rc;
      ndx++;
      if (ndx >= numChars) {
        ndx = numChars - 1;
      }
    }
    else {
      receivedChars[ndx] = '\0'; // terminate the string
      ndx = 0;
      newData = true;
    }
  }
}

void showNewNumber() {
  if (newData == true) {
    dataNumber = 0;             // new for this version
    dataNumber = atoi(receivedChars);   // new for this version
    Serial.print("This just in ... ");
    Serial.println(receivedChars);
    Serial.print("Data as Number ... ");    // new for this version
    Serial.println(dataNumber);     // new for this version
    newData = false;
  }
}

void runningtheRelay() {
  
   if (dataNumber >= 50 )
  {
    digitalWrite(relay, HIGH);
  }

  else
  {
    digitalWrite(relay, LOW);
  }

  delay(3000);
}

thanks!