Index
 
  Reference for Wiring 1.0 (ALPHA) 0019+. 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  

shiftOut()

   
Examples   
int data = 0; // Wiring pin 0 for data 
int clock = 1;  // Wiring pin 1 for clock 
int strobe = 2;  // Wiring pin 2 for the strobe (latch) 
byte counter = 0; 
 
void setup() { 
  pinMode(data OUTPUT); 
  pinMode(clock, OUTPUT); 
  pinMode(strobe, OUTPUT); 
} 
 
void loop() { 
  digitalWrite(strobe, LOW); 
  shiftOut(data, clock, LSBFIRST, counter);  // writes counter to the register  
  digitalWrite(strobe, HIGH); 
  delay(1000); 
  counter = counter + 1; 
}

Description   The shiftOut() method writes a byte of data one bit at a time. It can start from the most or the least significant bit of the byte (starts from leftmost or rightmost bit). This method is very useful to manage shift registers, which are devices that convert data from serial to parallel using one pin for receiving data, one for the clock, and one for the strobe (latch).
   
Syntax   
shiftOut(dataPin,clockPin,bitOrder,data)
   
Parameters  
dataPin   int: the pin used to send out the data
clockPin   int: the pin used as clock
bitOrder   MSBFIRST or LSBFIRST: the bit order to use. MSBFIRST stands for most significant bit first (leftmost bit), LSBFIRST stands for less significant bit first (rightmost bit).
data   byte: the byte to send out.
   
Returns   none
   
Usage   Application
   
Related   MSBFIRST
LSBFIRST