Index
 
  Reference for Wiring 1.0 (ALPHA) 0020+. 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  

requestFrom()

   
Examples  
#include <TwoWire.h> 
 
void setup() 
{ 
  Wire.begin();        // join i2c bus (address optional for master) 
  Serial.begin(9600);  // start serial for output 
} 
 
void loop() 
{ 
  Wire.requestFrom(2, 6);    // request 6 bytes from slave device #2 
 
  while(Wire.available())    // slave may send less than requested 
  { 
    char c = Wire.receive(); // receive a byte as character 
    Serial.print(c);         // print the character 
  } 
 
  delay(500); 
} 



Description   The requestFrom() method start read a specified number of bytes from the device specified with a given address.
   
Syntax  
Wire.requestFrom(address, quantity)
   
Parameters  
address   An int number between 0 and 127 specifying the address of the device to be read.

quantity   An int number specifying the number of bytes to be read.

Wire   The hardware TWI port

   
Returns   None
   
Usage   Application