//**************************************************************// // Name : shiftOutCode, Hello World // Author : Carlyn Maw,Tom Igoe, David A. Mellis // Date : 25 Oct, 2006 // Modified: 23 Mar 2010 // Version : 2.0 // Notes : Code for using a 74HC595 Shift Register // // : to count from 0 to 255 //**************************************************************** //Pin connected to ST_CP of 74HC595 int latchPin = 8; //Pin connected to SH_CP of 74HC595 int clockPin = 12; ////Pin connected to DS of 74HC595 int dataPin = 11; void setup() { //set pins to output so you can control the shift register pinMode(latchPin, OUTPUT); pinMode(clockPin, OUTPUT); pinMode(dataPin, OUTPUT); } uint8_t numerot[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; void loop() { // count from 0 to 255 and display the number // on the LEDs for (int numberToDisplay = 0; numberToDisplay < 99; numberToDisplay++) { nayta(numberToDisplay,500); } } void nayta(int numero, int viive) { digitalWrite(latchPin, LOW); shiftOut(dataPin, clockPin, MSBFIRST, numerot[numero%10]); shiftOut(dataPin, clockPin, MSBFIRST, numerot[numero/10]); digitalWrite(latchPin, HIGH); delay(viive); }