So I have been trying to make a very easy setup to test the
chip.
The setup is:
To find by clicking
here so I don't screw up the topic
Code is below but I'm not getting a single blink...
/*
Shift Register Example
for TPIC6B595 shift register by Jens C Brynildsen
This sketch turns reads serial input and uses it to set the pins
of a TPIC6B595 shift register.
Hardware:
* TPIC6B595 shift register attached to pins 7, 8, 11 and 12 of the Arduino,
as detailed below.
* LEDs attached to each of the outputs of the shift register
Based on the example created 23 Mar 2010 by Tom Igoe
*/
//Pin to clear the register
const int clearPin = 7;
//Pin connected to latch pin (ST_CP) of 74HC595
const int latchPin = 9;
//Pin connected to clock pin (SH_CP) of 74HC595
const int clockPin = 10;
////Pin connected to Data in (DS) of 74HC595
const int dataPin = 11;
int counter = 0;
int numLedsInUse = 8;
void setup() {
//set pins to output because they are addressed in the main loop
pinMode(clearPin, OUTPUT);
pinMode(latchPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(clockPin, OUTPUT);
Serial.begin(9600);
Serial.println("*");
// delay a little and then set
delay(100);
// Always start by sentting SRCLR high
digitalWrite( clearPin, HIGH);
}
void loop() {
// Display LED's running
if( counter >= (numLedsInUse-1) ){
counter = 0;
} else {
counter++;
}
// write to the shift register with the correct bit set high:
registerWrite(counter, HIGH);
delay( 100 );
}
// This method sends bits to the shift register:
void registerWrite(int whichPin, int whichState) {
// the bits you want to send
byte bitsToSend0 = 0;
// write number as bits
bitWrite(bitsToSend0, whichPin, whichState);
// turn off the output so the pins don't light up
// while you're shifting bits:
digitalWrite(latchPin, LOW);
// shift the bits out
shiftOut(dataPin, clockPin, MSBFIRST, bitsToSend0);
// turn on the output so the LEDs can light up:
digitalWrite(latchPin, HIGH);
}
