Description
This function reads a byte that was transmitted from a peripheral device to a controller device after a call to requestFrom() or was transmitted from a controller device to a peripheral device. read() inherits from the Stream utility class.
Syntax
Wire.read()
Parameters
None.
Returns
The next byte received.
Example
#include <Wire.h>
void setup() {
Wire.begin(); // Join I2C bus (address is optional for controller device)
Serial.begin(9600); // Start serial for output
}
void loop() {
Wire.requestFrom(2, 6); // Request 6 bytes from slave device number two
// Slave may send less than requested
while(Wire.available()) {
char c = Wire.read(); // Receive a byte as character
Serial.print(c); // Print the character
}
delay(500);
}