Xbee, 2 analog sensors and 1 push button help

I am pretty new to arduino and currently I am working on a school project involving arduino to arduino wireless communication with xbee. I am trying to send data from 2 analog sensors and a push button state from one arduino to another arduino. The sender arduino side would only have the two analog sensors and the push button; the receiving side would have the LEDs. In the end result, I want to remotely lit up an LED on pin 13 via push button, have an LED on pin 3 adjust its brightness according to the analog sensor, and have the LED on pin 8, 9, 10 lit up according to the second analog sensor.

I have the code of all the input and output on the same arduino. Now I need to do this wireless, but I am having trouble figuring out how to send data with serial communication in a way that they are “labeled” in correspondence to the specific analog sensor and push button state on the sender side, or that the receiving end can “differentiate” the data that is coming in and match each data with the right pin output. My lingo is probably quite confusing, pardon me.

Any help would be great, thank you.

// constants won't change. They're used here to 
// set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin

int analogOne = 0;       // analog input 
int potVal = 0;          // reading from the sensor

const int analogInPin = 1;  // Analog input pin that the GSR is attached to
const int analogOutPin = 3; // Analog output pin that the LED is attached to

int sensorValue = 0;        // value read from the pot
int outputValue = 0;        // value output to the PWM (analog out)

// variables will change:
int val;                        // variable for reading the pin status
int buttonState;                // variable to hold the button state
int lightMode = 0;              // Is the light on or off?


void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);   
  
  pinMode(8, OUTPUT);   // sets the pins as output for Force Sensing Resistor
  pinMode(9, OUTPUT);   
  pinMode(10, OUTPUT); 

  Serial.begin(9600);           // Set up serial communication at 9600bps
  buttonState = digitalRead(buttonPin);   // read the initial state  
}

void loop(){
  potVal = analogRead(analogOne);   // read the potentiometer value at the input pin
  Serial.print(potVal);

  if (potVal < 341)  // Lowest forth of the potentiometer's range (0-340)
  {                  
    digitalWrite(8, LOW);
    digitalWrite(9, LOW);
    digitalWrite(10, LOW);
  }
  else if (potVal < 682) // Middle forth of potentiometer's range (341-681)
  {
    digitalWrite(8, HIGH);
    digitalWrite(9, LOW);
    digitalWrite(10, LOW);
  }
  else if (potVal < 800) 
  {
    digitalWrite(8, HIGH);
    digitalWrite(9, HIGH);
    digitalWrite(10, LOW);
  }
  else
  {
    digitalWrite(8, HIGH);
    digitalWrite(9, HIGH);
    digitalWrite(10, HIGH);
  }
  
 val = digitalRead(buttonPin);      // read input value and store it in val

  if (val != buttonState) {          // the button state has changed!
    if (val == LOW) {                // check if the button is pressed
      if (lightMode == 0) {          // light is off
        lightMode = 1;               // light is on!
        digitalWrite(ledPin, HIGH);
        Serial.print("H");
      } else {
        lightMode = 0;               // light is on!
        digitalWrite(ledPin, LOW);
        Serial.print("L");
      }
    }
  }
  buttonState = val;                 // save the new state in our variable
  
  // read the analog in value for GSR:
  sensorValue = analogRead(analogInPin);            
  // map it to the range of the analog out:
  outputValue = map(sensorValue, 0, 1023, 0, 255);  
  // change the analog out value:
  analogWrite(analogOutPin, outputValue);
  Serial.print(sensorValue);  

}

Now I need to do this wireless, but I am having trouble figuring out how to send data with serial communication in a way that they are “labeled” in correspondence to the specific analog sensor and push button state on the sender side, or that the receiving end can “differentiate” the data that is coming in and match each data with the right pin output. My lingo is probably quite confusing, pardon me.

The term you are looking for is protocol. It is a definition of how data is to be exchanged. You get to define the protocol.

Do you need to send data from both sensors and the switch in each packet? If so, you might send something like “<189, 357, 0>”, where the first number is the reading from the first sensor, the second number is the reading from the second sensor, and the third number represents the state of the switch. Reading and parsing this on the receiver is simple.

If you want to send data separately, you might send “<3,0>” or “<2:357>” or “<1 189>”.

Use whatever delimiters you like. Spaces, colons, and commas are common, though. Using start and end of packet markers (the < and >) makes it easy to know when a packet has started and when it has ended (search for “started && ended” in the forum for some code), and allows for handling complete packets and discarding incomplete packets.

Thanks paul for your help and all your posts regarding "started && ended". It's working now.

Can you post your code please I am working on a similar project, Thanks