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InloveTech

Thursday, 2018-07-19, 2:48 PM

Shift register and LED:



(for basic information on Shift Register, head over to Technopedia section)

Things needed:-
1) Arduino(any model will do)
2) 8 x LEDs
3) 1 x 74HC595N Shift register

Pin arrangement of the shift register is given in the following diagram:-



Connections:
Connect the circuit as per the schematic given below.



Code:-
Binary Counting


//visit http://inlovetech.ucoz.com for more projects
int dataPin = 2;        //Define which pins will be used for the Shift Register control
int latchPin = 3;
int clockPin = 4;

int counter = 0;       //The counter for storing the byte value

void setup()
{
    pinMode(dataPin, OUTPUT);       //Configure each IO Pin
    pinMode(latchPin, OUTPUT);
    pinMode(clockPin, OUTPUT);
}

void loop()
{
    for (counter = 0; counter < 256; counter++)
    {
        digitalWrite(latchPin, LOW);          //Pull latch LOW to start sending data
        shiftOut(dataPin, clockPin, MSBFIRST, counter);         //Send the data
        digitalWrite(latchPin, HIGH);         //Pull latch HIGH to stop sending data
        delay(500);
    }
}

LED Rider:-

//visit http://inlovetech.ucoz.com for more projects.
int dataPin = 2;        //Define which pins will be used for the Shift Register control
int latchPin = 3;
int clockPin = 4;

int seq[14] = {1,2,4,8,16,32,64,128,64,32,16,8,4,2};       //The byte sequence

void setup()
{
    pinMode(dataPin, OUTPUT);       //Configure each IO Pin
    pinMode(latchPin, OUTPUT);
    pinMode(clockPin, OUTPUT);
}

void loop()
{
    for (int n = 0; n < 14; n++)
    {
        digitalWrite(latchPin, LOW);             //Pull latch LOW to start sending data
        shiftOut(dataPin, clockPin, MSBFIRST, seq[n]);          //Send the data
        digitalWrite(latchPin, HIGH);            //Pull latch HIGH to stop sending data
        delay(75);
    }
}

And thats it !!! JUST UPLOAD THE CODE AND HAVE FUN !!!