Index
 
  Reference for Wiring 1.0 (ALPHA) 0017+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
Name  

onReceive()

   
Examples   
#include <TwoWire.h> 
 
void setup() 
{ 
  Wire.begin(4);                // join i2c bus with address #4 
  Wire.onReceive(receiveEvent); // register event 
  Serial.begin(9600);           // start serial for output 
} 
 
void loop() 
{ 
  delay(100); 
} 
 
// function that executes whenever data is received from master 
// this function is registered as an event, see setup() 
void receiveEvent(int howMany) 
{ 
  while(1 < Wire.available()) // loop through all but the last 
  { 
    char c = Wire.receive(); // receive byte as a character 
    Serial.print(c);         // print the character 
  } 
  int x = Wire.receive();    // receive byte as an integer 
  Serial.println(x);         // print the integer 
} 








	


	

		Description
		 
	
	
The onReceive() method set the function that executes whenever data is received as a slave device. Every time a master writes to this device the specified function is executed.
	

           
 
            
             
             
          


	

		Syntax
		 
	
	

Wire.onReceive(function)

	

           
 
            
             
             
          


	

		Parameters
		 
	
	


function

 
The name of the function to be called whenever data is received in slave mode





Wire

 
The hardware TWI port




           
 
            
             
             
          


	

		Returns
		 
	
	
None
	

           
 
            
             
             
          


	

		Usage
		 
	
	
Application