Afficheur MAX7219 8×8 LED Panneau
20.00 د.م.
44 en stock
Description
Tutoriel : Utilisation Arduino Matrice LED MAX7219
Je vais essayer de simplifier au maximum les choses et te donner les clés pour tes réalisations.
unsigned char i; #define Max7219_pinCLK 10 #define Max7219_pinCS 11 #define Max7219_pinDIN 12 void setup() { pinMode(Max7219_pinCLK,OUTPUT); pinMode(Max7219_pinCS,OUTPUT); pinMode(Max7219_pinDIN,OUTPUT); delay(50); //Initialiser Init_MAX7219(); } void loop() { Write_Max7219(1,0x10); Write_Max7219(2,0x30); Write_Max7219(3,0x50); Write_Max7219(4,0x10); Write_Max7219(5,0x10); Write_Max7219(6,0x10); Write_Max7219(7,B10101010); Write_Max7219(8,B01010101); delay(500); Write_Max7219(8,B10101010); Write_Max7219(7,B01010101); delay(500); } void Init_MAX7219(void) { Write_Max7219(0x09, 0x00); //decoding :BCD Write_Max7219(0x0a, 0x03); //brightness Write_Max7219(0x0b, 0x07); //scanlimit;8 LEDs Write_Max7219(0x0c, 0x01); //power-down mode:0,normal mode:1 Write_Max7219(0x0f, 0x00); //test display:1;EOT,display:0 } //Ecriture sur une rangee void Write_Max7219(unsigned char address,unsigned char dat) { digitalWrite(Max7219_pinCS,LOW); Write_Max7219_byte(address); //address,code of LED Write_Max7219_byte(dat); //data,figure on LED digitalWrite(Max7219_pinCS,HIGH); } // Ecriture sur un 8x8 void Write_Max7219_byte(unsigned char DATA) { unsigned char i; digitalWrite(Max7219_pinCS,LOW); for(i=8;i>=1;i--) { digitalWrite(Max7219_pinCLK,LOW); digitalWrite(Max7219_pinDIN,DATA&0x80);// Extracting a bit data DATA = DATA<<1; digitalWrite(Max7219_pinCLK,HIGH); } }
Avec librairie
#include <avr/pgmspace.h> #include "LedControl.h" const byte scarabe[][2][8]={ { { B01001000, B10010001, B11111010, B11111100, B11111100, B11111010, B10010001, B01001000} , {B00000000, B11111000, B10010111, B00001101, B00001101, B10010111, B11111000, B00000000} } , { { B10010000, B10010000, B11111011, B11111100, B11111100, B11111011, B10010000, B10010000} , { B00000000, B11111000, B10010111, B00001101, B00001101, B10010111, B11111000, B00000000} } , { { B00100000, B10010001, B11111010, B11111100, B11111101, B11111010, B10010000, B00100000} , { B00000001, B11111000, B10010111, B00001101, B00001101, B10010111, B11111000, B00000001} } , { { B01001000, B10010001, B11111010, B11111100, B11111100, B11111010, B10010001, B01001000} , {B00000000, B11111000, B10010111, B00001101, B00001101, B10010111, B11111000, B00000000} } }; // afficheur numero 2 const char font5x7 [] PROGMEM = { //Numeric Font Matrix (Arranged as 7x font data + 1x kerning data) B00000000, //Space (Char 0x20) B00000000, B00000000, B00000000, B00000000, B00000000, B00000000, 6, B10000000, //! B10000000, B10000000, B10000000, B00000000, B00000000, B10000000, 2, B10100000, //" B10100000, B10100000, B00000000, B00000000, B00000000, B00000000, 4, B01010000, //# B01010000, B11111000, B01010000, B11111000, B01010000, B01010000, 6, B00100000, //$ B01111000, B10100000, B01110000, B00101000, B11110000, B00100000, 6, B11000000, //% B11001000, B00010000, B00100000, B01000000, B10011000, B00011000, 6, B01100000, //& B10010000, B10100000, B01000000, B10101000, B10010000, B01101000, 6, B11000000, //' B01000000, B10000000, B00000000, B00000000, B00000000, B00000000, 3, B00100000, //( B01000000, B10000000, B10000000, B10000000, B01000000, B00100000, 4, B10000000, //) B01000000, B00100000, B00100000, B00100000, B01000000, B10000000, 4, B00000000, //* B00100000, B10101000, B01110000, B10101000, B00100000, B00000000, 6, B00000000, //+ B00100000, B00100000, B11111000, B00100000, B00100000, B00000000, 6, B00000000, //, B00000000, B00000000, B00000000, B11000000, B01000000, B10000000, 3, B00000000, //- B00000000, B11111000, B00000000, B00000000, B00000000, B00000000, 6, B00000000, //. B00000000, B00000000, B00000000, B00000000, B11000000, B11000000, 3, B00000000, /// B00001000, B00010000, B00100000, B01000000, B10000000, B00000000, 6, B01110000, //0 B10001000, B10011000, B10101000, B11001000, B10001000, B01110000, 6, B01000000, //1 B11000000, B01000000, B01000000, B01000000, B01000000, B11100000, 4, B01110000, //2 B10001000, B00001000, B00010000, B00100000, B01000000, B11111000, 6, B11111000, //3 B00010000, B00100000, B00010000, B00001000, B10001000, B01110000, 6, B00010000, //4 B00110000, B01010000, B10010000, B11111000, B00010000, B00010000, 6, B11111000, //5 B10000000, B11110000, B00001000, B00001000, B10001000, B01110000, 6, B00110000, //6 B01000000, B10000000, B11110000, B10001000, B10001000, B01110000, 6, B11111000, //7 B10001000, B00001000, B00010000, B00100000, B00100000, B00100000, 6, B01110000, //8 B10001000, B10001000, B01110000, B10001000, B10001000, B01110000, 6, B01110000, //9 B10001000, B10001000, B01111000, B00001000, B00010000, B01100000, 6, B00000000, //: B11000000, B11000000, B00000000, B11000000, B11000000, B00000000, 3, B00000000, //; B11000000, B11000000, B00000000, B11000000, B01000000, B10000000, 3, B00010000, //< B00100000, B01000000, B10000000, B01000000, B00100000, B00010000, 5, B00000000, //= B00000000, B11111000, B00000000, B11111000, B00000000, B00000000, 6, B10000000, //> B01000000, B00100000, B00010000, B00100000, B01000000, B10000000, 5, B01110000, //? B10001000, B00001000, B00010000, B00100000, B00000000, B00100000, 6, B01110000, //@ B10001000, B00001000, B01101000, B10101000, B10101000, B01110000, 6, B01110000, //A B10001000, B10001000, B10001000, B11111000, B10001000, B10001000, 6, B11110000, //B B10001000, B10001000, B11110000, B10001000, B10001000, B11110000, 6, B01110000, //C B10001000, B10000000, B10000000, B10000000, B10001000, B01110000, 6, B11100000, //D B10010000, B10001000, B10001000, B10001000, B10010000, B11100000, 6, B11111000, //E B10000000, B10000000, B11110000, B10000000, B10000000, B11111000, 6, B11111000, //F B10000000, B10000000, B11110000, B10000000, B10000000, B10000000, 6, B01110000, //G B10001000, B10000000, B10111000, B10001000, B10001000, B01111000, 6, B10001000, //H B10001000, B10001000, B11111000, B10001000, B10001000, B10001000, 6, B11100000, //I B01000000, B01000000, B01000000, B01000000, B01000000, B11100000, 4, B00111000, //J B00010000, B00010000, B00010000, B00010000, B10010000, B01100000, 6, B10001000, //K B10010000, B10100000, B11000000, B10100000, B10010000, B10001000, 6, B10000000, //L B10000000, B10000000, B10000000, B10000000, B10000000, B11111000, 6, B10001000, //M B11011000, B10101000, B10101000, B10001000, B10001000, B10001000, 6, B10001000, //N B10001000, B11001000, B10101000, B10011000, B10001000, B10001000, 6, B01110000, //O B10001000, B10001000, B10001000, B10001000, B10001000, B01110000, 6, B11110000, //P B10001000, B10001000, B11110000, B10000000, B10000000, B10000000, 6, B01110000, //Q B10001000, B10001000, B10001000, B10101000, B10010000, B01101000, 6, B11110000, //R B10001000, B10001000, B11110000, B10100000, B10010000, B10001000, 6, B01111000, //S B10000000, B10000000, B01110000, B00001000, B00001000, B11110000, 6, B11111000, //T B00100000, B00100000, B00100000, B00100000, B00100000, B00100000, 6, B10001000, //U B10001000, B10001000, B10001000, B10001000, B10001000, B01110000, 6, B10001000, //V B10001000, B10001000, B10001000, B10001000, B01010000, B00100000, 6, B10001000, //W B10001000, B10001000, B10101000, B10101000, B10101000, B01010000, 6, B10001000, //X B10001000, B01010000, B00100000, B01010000, B10001000, B10001000, 6, B10001000, //Y B10001000, B10001000, B01010000, B00100000, B00100000, B00100000, 6, B11111000, //Z B00001000, B00010000, B00100000, B01000000, B10000000, B11111000, 6, B11100000, //[ B10000000, B10000000, B10000000, B10000000, B10000000, B11100000, 4, B00000000, //(Backward Slash) B10000000, B01000000, B00100000, B00010000, B00001000, B00000000, 6, B11100000, //] B00100000, B00100000, B00100000, B00100000, B00100000, B11100000, 4, B00100000, //^ B01010000, B10001000, B00000000, B00000000, B00000000, B00000000, 6, B00000000, //_ B00000000, B00000000, B00000000, B00000000, B00000000, B11111000, 6, B10000000, //` B01000000, B00100000, B00000000, B00000000, B00000000, B00000000, 4, B00000000, //a B00000000, B01110000, B00001000, B01111000, B10001000, B01111000, 6, B10000000, //b B10000000, B10110000, B11001000, B10001000, B10001000, B11110000, 6, B00000000, //c B00000000, B01110000, B10001000, B10000000, B10001000, B01110000, 6, B00001000, //d B00001000, B01101000, B10011000, B10001000, B10001000, B01111000, 6, B00000000, //e B00000000, B01110000, B10001000, B11111000, B10000000, B01110000, 6, B00110000, //f B01001000, B01000000, B11100000, B01000000, B01000000, B01000000, 6, B00000000, //g B01111000, B10001000, B10001000, B01111000, B00001000, B01110000, 6, B10000000, //h B10000000, B10110000, B11001000, B10001000, B10001000, B10001000, 6, B01000000, //i B00000000, B11000000, B01000000, B01000000, B01000000, B11100000, 4, B00010000, //j B00000000, B00110000, B00010000, B00010000, B10010000, B01100000, 5, B10000000, //k B10000000, B10010000, B10100000, B11000000, B10100000, B10010000, 5, B11000000, //l B01000000, B01000000, B01000000, B01000000, B01000000, B11100000, 4, B00000000, //m B00000000, B11010000, B10101000, B10101000, B10001000, B10001000, 6, B00000000, //n B00000000, B10110000, B11001000, B10001000, B10001000, B10001000, 6, B00000000, //o B00000000, B01110000, B10001000, B10001000, B10001000, B01110000, 6, B00000000, //p B00000000, B11110000, B10001000, B11110000, B10000000, B10000000, 6, B00000000, //q B00000000, B01101000, B10011000, B01111000, B00001000, B00001000, 6, B00000000, //r B00000000, B10110000, B11001000, B10000000, B10000000, B10000000, 6, B00000000, //s B00000000, B01110000, B10000000, B01110000, B00001000, B11110000, 6, B01000000, //t B01000000, B11100000, B01000000, B01000000, B01001000, B00110000, 6, B00000000, //u B00000000, B10001000, B10001000, B10001000, B10011000, B01101000, 6, B00000000, //v B00000000, B10001000, B10001000, B10001000, B01010000, B00100000, 6, B00000000, //w B00000000, B10001000, B10101000, B10101000, B10101000, B01010000, 6, B00000000, //x B00000000, B10001000, B01010000, B00100000, B01010000, B10001000, 6, B00000000, //y B00000000, B10001000, B10001000, B01111000, B00001000, B01110000, 6, B00000000, //z B00000000, B11111000, B00010000, B00100000, B01000000, B11111000, 6, B00100000, //{ B01000000, B01000000, B10000000, B01000000, B01000000, B00100000, 4, B10000000, //| B10000000, B10000000, B10000000, B10000000, B10000000, B10000000, 2, B10000000, //} B01000000, B01000000, B00100000, B01000000, B01000000, B10000000, 4, B00000000, //~ B00000000, B00000000, B01101000, B10010000, B00000000, B00000000, 6, B01100000, // (Char 0x7F) B10010000, B10010000, B01100000, B00000000, B00000000, B00000000, 5 }; const int numDevices = 1; // nombre afficheur const long scrollDelay = 75; // vitesse scrooling unsigned long bufferLong [14] = {0}; // ledcontrol(DataIn,CLK,LOAD,nombreafficheur) LedControl lc=LedControl(12,10,11,2); LedControl lc2=LedControl(7,5,6,numDevices); const char scrollText[] PROGMEM ={ " Bienvenue chez RETRO ET GEEK ! \0"}; char abonne[]={" Abonne toi ! \0"}; /* we always wait a bit between updates of the display */ unsigned long delaytime=500; void setup() { Serial.begin(57600); //recupere le nombre de matrice int devices=lc.getDeviceCount(); //boucle d'initialisation des boucles for(int address=0;address<devices;address++) { /*mise en route des afficheurs*/ lc.shutdown(address,false); /* Reglage luminosité */ lc.setIntensity(address,15); /* nettoyage matrice, vider */ lc.clearDisplay(address); } int devices2=lc2.getDeviceCount(); for(int address=0;address<devices2;address++) { lc2.shutdown(address,false); lc2.setIntensity(address,8); lc2.clearDisplay(address); } } void loop() { animation(); scrollMessage(scrollText,1); // scrollFont(); scrollMessage(abonne,0); } void animation(){ //Serial.println(scarabe[0][0][0]); //Serial.println(scarabe[0][0][2]); //Serial.print("taille"); // Serial.println(sizeof(scarabe)/sizeof(byte)/16); for( int a=0; a<(sizeof(scarabe)/sizeof(byte))/16; a++){ //for( int a=0; a<3; a++){ for( int b=0;b<2;b++){ for( int c=0;c<8;c++){ Serial.print("A"); Serial.print(a); Serial.print(" B"); Serial.print(b); Serial.print(" C"); Serial.print(c); Serial.print(" Tot "); Serial.println(scarabe[a][b][c]); lc.setRow(b,c,scarabe[a][b][c]); } } delay(500); } } //////////////////////// void scrollFont() { for (int counter=0x20;counter<0x80;counter++){ loadBufferLong(counter); delay(500); } } // Scroll Message void scrollMessage(char * messageString, bool memoire ) { int counter = 0; int myChar=0; do { // read back a char if( memoire == 1){ myChar = pgm_read_byte_near(messageString + counter); } else{ myChar = messageString[counter]; } if (myChar != 0){ loadBufferLong(myChar); } counter++; } while (myChar != 0); } // Load character into scroll buffer void loadBufferLong(int ascii){ if (ascii >= 0x20 && ascii <=0x7f){ for (int a=0;a<7;a++){ // Loop 7 times for a 5x7 font unsigned long c = pgm_read_byte_near(font5x7 + ((ascii - 0x20) * 8) + a); // Index into character table to get row data unsigned long x = bufferLong [a*2]; // Load current scroll buffer x = x | c; // OR the new character onto end of current bufferLong [a*2] = x; // Store in buffer } byte count = pgm_read_byte_near(font5x7 +((ascii - 0x20) * 8) + 7); // Index into character table for kerning data for (byte x=0; x<count;x++){ rotateBufferLong(); printBufferLong(); delay(scrollDelay); } } } // Rotate the buffer void rotateBufferLong(){ for (int a=0;a<7;a++){ // Loop 7 times for a 5x7 font unsigned long x = bufferLong [a*2]; // Get low buffer entry byte b = bitRead(x,31); // Copy high order bit that gets lost in rotation x = x<<1; // Rotate left one bit bufferLong [a*2] = x; // Store new low buffer x = bufferLong [a*2+1]; // Get high buffer entry x = x<<1; // Rotate left one bit bitWrite(x,0,b); // Store saved bit bufferLong [a*2+1] = x; // Store new high buffer } } // Display Buffer on LED matrix void printBufferLong(){ for (int a=0;a<7;a++){ // Loop 7 times for a 5x7 font unsigned long x = bufferLong [a*2+1]; // Get high buffer entry byte y = x; // Mask off first character lc2.setRow(3,a,y); // Send row to relevent MAX7219 chip x = bufferLong [a*2]; // Get low buffer entry y = (x>>24); // Mask off second character lc2.setRow(2,a,y); // Send row to relevent MAX7219 chip y = (x>>16); // Mask off third character lc2.setRow(1,a,y); // Send row to relevent MAX7219 chip y = (x>>8); // Mask off forth character lc2.setRow(0,a,y); // Send row to relevent MAX7219 chip } }
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