74LS595 Shift Register
by BARRAGAN <http://barraganstudio.com>

Sends the value stored in the byte variable counter to the shift register. The shift register outputs QA to QH will reflect the value sent.

Created 6 January 2007
 

    
// 74LS595 Shift Register 
// by BARRAGAN <http://barraganstudio.com> 

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 shift register  
  digitalWrite(strobe, HIGH); 
  delay(1000); 
  counter = counter + 1; 
}
   
 
           
           
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