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Wire
read()
Description
Reads a byte that was transmitted from a slave device to a master after a call to requestFrom() or was transmitted from a master to a slave. 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 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.read
(
)
; // receive a byte as character
Serial.print
(c)
; // print the character
}
delay
(
500
)
;
}
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See also
Reference Home
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.