Différences

Ci-dessous, les différences entre deux révisions de la page.

--- projets:afficheur-defilant [2016/11/25 15:39]
admin
+++ projets:afficheur-defilant [2020/12/11 18:45]
@@ Ligne 1: / Ligne 1: @@
-<code c>
-#include <TimerOne.h>
-unsigned char col[8]={2,3,4,5,6,7,8,9}; // pins for columns
-unsigned char row[8]={10,11,12,13,14,15,16,17}; // pins for rows
-unsigned char refreshRow=0; // set index
-unsigned char lastRefreshRow=7; // for the refresh
-unsigned int scrollIndex=0; // render starting column in bigMatrix
-bool matrix [8] [8]; // image of the screen
-bool bigMatrix [112] [8]; // image of complete message
-// character set
-unsigned char carSp[8]={0,0,0,0,0,0,0,0}; // Space
-unsigned char carEx[8]={24,24,24,24,24,0,24,0}; // !
-unsigned char carH[8]={102,102,102,126,102,102,102,0}; // H
-unsigned char care[8]={0,0,60,102,126,96,60,0}; // e
-unsigned char carl[8]={56,24,24,24,24,24,60,0}; // l
-unsigned char caro[8]={0,0,60,102,102,102,60,0}; // o
-unsigned char carw[8]={0,0,198,214,214,254,108,0}; // w
-unsigned char carr[8]={0,0,216,108,96,96,240,0}; // r
-unsigned char card[8]={28,12,124,204,204,204,118,0}; // d
-unsigned char carF[8]={254,98,104,120,104,96,120,0}; // F
-unsigned char cara[8]={0,0,120,12,124,204,118,0}; // a
-unsigned char carb[8]={224,224,124,102,102,102,188,0}; // b
-unsigned char car5[8]={126,98,96,60,12,108,60,0}; // 5
-// fablab_web_5
-void setup() {
-Timer1.initialize(2500); // initialize the timer to refresh the screen (in microsecond)
-test_matrix(10); // do a matrix led test
-// write message " Hello world !" in BigMatrix table
-char2BigMatrix(carSp,0); // [Space]
-char2BigMatrix(carF,8); // F
-char2BigMatrix(cara,16); // a
-char2BigMatrix(carb,24); // b
-char2BigMatrix(carl,32); // l
-char2BigMatrix(cara,40); // a
-char2BigMatrix(carb,48); //b
-char2BigMatrix(carSp,56); // [Space]
-char2BigMatrix(carw,64); // w
-char2BigMatrix(care,72); // e
-char2BigMatrix(carb,80); // b
-char2BigMatrix(carSp,88); // [Space]
-char2BigMatrix(car5,96); // 5
-char2BigMatrix(carEx,104); // !(
-Timer1.attachInterrupt(refresh_matrix); // rely interruption to refresh_matrix function and start the timer
-}
-void loop() {
-  // put your main code here, to run repeatedly:
-bigMatrice2matrice(scrollIndex); // take 8 columns of bigMatrix and send them to matrix
-scrollIndex+=1; // shift one column for next call
-if(scrollIndex>111){ // if end of big matrix reached
-  scrollIndex=0; // return to start
-}
-delay(100); // delay in ms between one column scrolling
-}
-void init_matrix(){ // set power for each rows and columns
-  for (int i=0;i<8;i++){
-  pinMode(col[i],OUTPUT);
-  digitalWrite(col[i],HIGH);
-  pinMode(row[i],OUTPUT);
-  digitalWrite(row[i],LOW);
-}
-}
-void test_matrix(int lasting){ // light up each led alternatively
-    init_matrix();
-    for (int y=0;y<8;y++){
-  digitalWrite(row[y],HIGH);
-  for (int x=0;x<8;x++){
-    digitalWrite(col[x],LOW);
-    delay(lasting);
-    digitalWrite(col[x],HIGH);
-  }
-  digitalWrite(row[y],LOW);
-  }
-}
-void char2BigMatrix(unsigned char character[8],unsigned char colInsert){ // insert a character in specified column of bigMatrix
-  for(int x=colInsert;x<colInsert+8;x++){
-    for(int y=0;y<8;y++){
-      bigMatrix[x][y]=!(bitRead(character[y],7-(x-colInsert)));
-    }
-  }
-}
-void refresh_matrix(){ // draw matrix state on physical leds
-  digitalWrite(row[lastRefreshRow],LOW);
-  for (int i=0;i<8;i++){
-    digitalWrite(col[i],matrix[i][refreshRow]);
-  }
-  digitalWrite(row[refreshRow],HIGH);
- refreshRow++;
- if (refreshRow>7){
- refreshRow=0;
- lastRefreshRow=7;
- }else{
-  lastRefreshRow=refreshRow-1;
- }
-}
-void bigMatrice2matrice(unsigned int colStart){ // copy part of bigMatrix to matrix
-  for(int x=0;x<8;x++){
-    for(int y=0;y<8;y++){
-      if (x+colStart>111){
-        colStart=-x;
-      }
-      matrix[x][y]=bigMatrix[x+colStart][y];
-    }
-  }
-}
-</code>
-lien : http://www.blogule.net/index.php/2016/01/30/scrolling-sur-matrice-a-led/