Alice-Maria PÎRVULESCU (101523)

Cu ajutorul unor LEDuri, un motor care le va roti si faptul ca ochiul uman nu poate observa mai mult de 10 imagini pe secunda voi crea iluzia persistentei unui cuvant.

* Arduino Uno * DC Motor * +9V battery * Led Band * 1KΩ resistors

 
#include <FastLED.h>

#define LED_PIN     7
#define NUM_LEDS    8

int ledPin =  13;    
int state = 0;  

CRGB leds[NUM_LEDS];

double delayTime = 1; 
double charBreak = 2.5; 


void setup(){
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  pinMode(ledPin, OUTPUT);    
}
  
  int a[] = {1, 6, 26, 6, 1};
  int b[] = {31, 21, 21, 10, 0};
  int c[] = {14, 17, 17, 10, 0};
  int d[] = {31, 17, 17, 14, 0};
  int e[] = {31, 21, 21, 17, 0};
  int f[] = {31, 20, 20, 16, 0};
  int g[] = {14, 17, 19, 10, 0};
  int h[] = {31, 4, 4, 4, 31};
  int i[] = {0, 17, 31, 17, 0};
  int j[] = {0, 17, 30, 16, 0};
  int k[] = {31, 4, 10, 17, 0};
  int l[] = {31, 1, 1, 1, 0};
  int m[] = {31, 12, 3, 12, 31};
  int n[] = {31, 12, 3, 31, 0};
  int o[] = {14, 17, 17, 14, 0};
  int p[] = {31, 20, 20, 8, 0};
  int qQ[] = {14, 17, 19, 14, 2};
  int r[] = {31, 20, 22, 9, 0};
  int s[] = {8, 21, 21, 2, 0};
  int t[] = {16, 16, 31, 16, 16};
  int u[] = {30, 1, 1, 30, 0};
  int v[] = {24, 6, 1, 6, 24};
  int w[] = {28, 3, 12, 3, 28};
  int x[] = {17, 10, 4, 10, 17};
  int y[] = {17, 10, 4, 8, 16};
  int z[] = {19, 21, 21, 25, 0};
  
  int eos[] = {0, 1, 0, 0, 0};
  int excl[] = {0, 29, 0, 0, 0};
  int ques[] = {8, 19, 20, 8, 0};

void displayLine(int line){
  int myline;
  myline = line;
  if (myline>=16) {leds[1] = CRGB(0, 0, 255); myline-=16;}
    else {leds[1] = CRGB::Black;}
  if (myline>=8)  {leds[2] = CRGB(0, 0, 255); myline-=8;} 
    else {leds[2] = CRGB::Black;}
  if (myline>=4)  {leds[3] = CRGB(0, 0, 255); myline-=4;}  
    else {leds[3] = CRGB::Black;}
  if (myline>=2)  {leds[4] = CRGB(0, 0, 255); myline-=2;}
    else {leds[4] = CRGB::Black;}
  if (myline>=1)  {leds[5] = CRGB(0, 0, 255); myline-=1;} 
    else {leds[5] = CRGB::Black;}
  leds[7] = CRGB(255, 0, 0);
    FastLED.show();

}

void displayChar(char ch){
  if (ch == 'a'){for (int i = 0; i <5; i++){displayLine(a[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'b'){for (int i = 0; i <5; i++){displayLine(b[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'c'){for (int i = 0; i <5; i++){displayLine(c[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'd'){for (int i = 0; i <5; i++){displayLine(d[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'e'){for (int i = 0; i <5; i++){displayLine(e[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'f'){for (int i = 0; i <5; i++){displayLine(f[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'g'){for (int i = 0; i <5; i++){displayLine(g[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'h'){for (int i = 0; i <5; i++){displayLine(h[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'i'){for (int it = 0; it <5; it++){displayLine(i[it]);delay(delayTime);}displayLine(0);}
  if (ch == 'j'){for (int i = 0; i <5; i++){displayLine(j[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'k'){for (int i = 0; i <5; i++){displayLine(k[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'l'){for (int i = 0; i <5; i++){displayLine(l[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'm'){for (int i = 0; i <5; i++){displayLine(m[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'n'){for (int i = 0; i <5; i++){displayLine(n[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'o'){for (int i = 0; i <5; i++){displayLine(o[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'p'){for (int i = 0; i <5; i++){displayLine(p[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'q'){for (int i = 0; i <5; i++){displayLine(qQ[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'r'){for (int i = 0; i <5; i++){displayLine(r[i]);delay(delayTime);}displayLine(0);}
  if (ch == 's'){for (int i = 0; i <5; i++){displayLine(s[i]);delay(delayTime);}displayLine(0);}
  if (ch == 't'){for (int i = 0; i <5; i++){displayLine(t[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'u'){for (int i = 0; i <5; i++){displayLine(u[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'v'){for (int i = 0; i <5; i++){displayLine(v[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'w'){for (int i = 0; i <5; i++){displayLine(w[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'x'){for (int i = 0; i <5; i++){displayLine(x[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'y'){for (int i = 0; i <5; i++){displayLine(y[i]);delay(delayTime);}displayLine(0);}
  if (ch == 'z'){for (int i = 0; i <5; i++){displayLine(z[i]);delay(delayTime);}displayLine(0);}
  if (ch == '!'){for (int i = 0; i <5; i++){displayLine(excl[i]);delay(delayTime);}displayLine(0);}
  if (ch == '?'){for (int i = 0; i <5; i++){displayLine(ques[i]);delay(delayTime);}displayLine(0);}
  if (ch == '.'){for (int i = 0; i <5; i++){displayLine(eos[i]);delay(delayTime);}displayLine(0);}
  delay(charBreak);
}

  void displayString(char* s){
  for (int i = 0; i<=strlen(s); i++){
  displayChar(s[i]);
  }
}

void loop()
{
displayString("hello");
} 

https://en.wikipedia.org/wiki/Persistence_of_vision https://hackaday.com/2019/10/29/the-basics-of-persistence-of-vision-projects/