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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 !!! |
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