Étape 13 : Afficher n’importe quelle Image
Si nous utilisons un tampon d’affichage avec les valeurs définies, nous pouvons afficher n’importe quelle image que nous voulons sur notre écran. Le code suivant montre comment cela se fait :
#include //Include Wire library for I2C communication const int RST = 10; //Assign pin 10 for Reset int i; //Set variable i as integer const unsigned char js[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0x80, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0E, 0x0F, 0x1F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x1F, 0x3F, 0x3F, 0x1F, 0x1F, 0x3F, 0x3F, 0x1F, 0x1F, 0x3F, 0x3F, 0x1F, 0x1F, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x40, 0x80, 0x60, 0x50, 0xA0, 0xA8, 0x50, 0xA0, 0x5C, 0xA4, 0x48, 0xA8, 0x50, 0xA6, 0x58, 0x90, 0x64, 0x58, 0xA4, 0x58, 0x24, 0x98, 0x68, 0xA8, 0x54, 0x68, 0x22, 0x50, 0xA4, 0x48, 0xB4, 0xA0, 0x5C, 0x94, 0x48, 0x94, 0x68, 0xA4, 0x50, 0x58, 0xA4, 0x58, 0x94, 0x24, 0x58, 0xA4, 0x58, 0xA0, 0x58, 0x04, 0x00, 0x54, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x84, 0x00, 0x60, 0x2A, 0x90, 0x64, 0x58, 0xA4, 0x58, 0x24, 0x98, 0x68, 0xA8, 0x54, 0x68, 0x24, 0x24, 0x58, 0xA4, 0x58, 0xA4, 0x48, 0x94, 0x68, 0x90, 0x6A, 0xD4, 0x28, 0x20, 0xD4, 0x68, 0x12, 0x50, 0xA4, 0x48, 0xB4, 0xA4, 0x18, 0x50, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x25, 0x7E, 0x9A, 0xE5, 0x76, 0x59, 0xCA, 0xB5, 0x9D, 0x6A, 0xFD, 0x92, 0xDA, 0x61, 0x60, 0xA0, 0x80, 0xC0, 0x20, 0xC0, 0x40, 0xA0, 0x80, 0xE0, 0x40, 0xC0, 0x40, 0xA0, 0x80, 0xC0, 0x20, 0xC0, 0x40, 0xA0, 0x80, 0xE0, 0x40, 0xC0, 0x40, 0xA0, 0x80, 0xC0, 0x20, 0xC0, 0x40, 0xC0, 0x80, 0x60, 0xC0, 0xA0, 0x80, 0xC0, 0xC0, 0x6D, 0x6F, 0xDF, 0xBF, 0xAF, 0x7F, 0xCF, 0xBF, 0xBF, 0xDF, 0x6F, 0x7F, 0xDF, 0x9F, 0xAF, 0xC0, 0x40, 0x80, 0xA0, 0xC0, 0x40, 0x40, 0xC0, 0xC0, 0x40, 0x40, 0xC0, 0xC0, 0x80, 0xE0, 0x40, 0x40, 0xC0, 0x40, 0xA0, 0x80, 0xC0, 0x20, 0xC0, 0x40, 0xC0, 0x80, 0xC0, 0x00, 0xC0, 0xC0, 0x00, 0xC0, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x81, 0xC1, 0xC3, 0xC2, 0xC2, 0x85, 0x87, 0xC6, 0x87, 0x09, 0x0F, 0x02, 0x0F, 0x05, 0x0F, 0x06, 0x06, 0x07, 0x05, 0x0F, 0x09, 0x05, 0x0F, 0x06, 0x06, 0x07, 0x0D, 0x07, 0x0C, 0x07, 0x05, 0x0F, 0x0A, 0x05, 0x0F, 0x06, 0x06, 0x07, 0x0D, 0x07, 0x0C, 0x07, 0x05, 0x0F, 0x0A, 0x05, 0x0F, 0x06, 0x06, 0x0F, 0xCA, 0xEE, 0xFB, 0xF3, 0xFD, 0xFB, 0xEE, 0xEE, 0xFB, 0xEE, 0xF3, 0xFB, 0xFE, 0xFB, 0xCE, 0x03, 0x0E, 0x0B, 0x0E, 0x03, 0x0E, 0x0A, 0x07, 0x03, 0x0E, 0x0B, 0x0E, 0x03, 0x0E, 0x0A, 0x07, 0x07, 0x0D, 0x07, 0x0C, 0x07, 0x05, 0x0F, 0x0A, 0x0E, 0x0B, 0xB5, 0xEF, 0x6A, 0xFF, 0x7B, 0xEC, 0xFF, 0x69, 0xFF, 0xAA, 0xB7, 0xFC, 0x6E, 0xF8, 0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x78, 0x7C, 0xDC, 0xFC, 0x7E, 0xF8, 0xFE, 0xBC, 0xFC, 0xFE, 0xF6, 0xDC, 0xEC, 0xF6, 0xFC, 0xFE, 0xFE, 0xBC, 0x7A, 0xFC, 0xFC, 0xFE, 0xE8, 0xFE, 0xFC, 0xBE, 0xEC, 0x10, 0x34, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xD8, 0x00, 0x6C, 0xFC, 0xFC, 0xFA, 0xBE, 0xFC, 0xEC, 0xF6, 0xFC, 0xFE, 0xFE, 0x7C, 0x7A, 0xFC, 0xFC, 0x7E, 0xF6, 0xFC, 0xFE, 0xDC, 0xFC, 0xEE, 0xBE, 0xFE, 0xFF, 0xE7, 0xFE, 0x7F, 0xFB, 0x7F, 0x7E, 0x6F, 0x3F, 0x3B, 0x1E, 0x1F, 0x0F, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8, 0xF0, 0xF0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xE0, 0xE0, 0xF0, 0xF0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xF0, 0xE0, 0xE0, 0xE0, 0xF0, 0xF0, 0xF0, 0xE0, 0xF0, 0xE0, 0xE0, 0xF0, 0xF0, 0xF0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x07, 0x03, 0x03, 0x07, 0x07, 0x07, 0x07, 0x0F, 0x07, 0x0F, 0x07, 0x0F, 0x07, 0x07, 0x0F, 0x07, 0x0F, 0x0F, 0x07, 0x0F, 0x07, 0x07, 0x0F, 0x07, 0x0F, 0x0F, 0x07, 0x0F, 0x07, 0x07, 0x0F, 0x07, 0x0F, 0x0F, 0x07, 0x0F, 0x07, 0x07, 0x0F, 0x07, 0x0F, 0x0F, 0x07, 0x0F, 0x07, 0x07, 0x07, 0x0F, 0x07, 0x07, 0x07, 0x07, 0x03, 0x07, 0x07, 0x03, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; void setup() { pin_init(); //Initialize pins initialize_OLED(); //Initialize screen pattern(); //Display image } void loop() { } void pin_init(){ Serial.begin(9600); //Set baud for serial transmission pinMode(RST, OUTPUT); //Set RST as output } void initialize_OLED(){ Wire.begin(); //Initialize I2C interface digitalWrite(RST, LOW); //Set RST pin low delay(100); //Wait 100 ms digitalWrite(RST, HIGH); //Set RST pin high Wire.beginTransmission(0x3D); // Start communication with slave Wire.write(0x00); //Command stream Wire.write(0xAE); //Set display Off Wire.write(0xD5); //Set display clock divide ratio/oscillator frequency Wire.write(0x80); Wire.write(0xA8); //Set multiplex ratio Wire.write(0x3F); Wire.write(0xD3); //Set display offset Wire.write(0x00); Wire.write(0x40); //Set display start line Wire.write(0x8D); //Set charge pump Wire.write(0x14); //VCC generated by internal DC/DC circuit Wire.write(0xA1); //Set segment re-map Wire.write(0xC8); //Set COM output scan direction Wire.write(0xDA); //Set COM pins hardware configuration Wire.write(0x12); Wire.write(0x81); //Set contrast control Wire.write(0xCF); Wire.write(0xD9); //Set pre-changed period Wire.write(0xF1); Wire.write(0xDB); //Set VCOMH Deselected level Wire.write(0x40); Wire.write(0xA4); //Set entire display on/off Wire.write(0xA6); //Set normal/inverse display Wire.write(0x20); //Set memory address mode Wire.write(0x00); //Vertical Wire.write(0xAF); //Set display on Wire.endTransmission(); //End communication with slave } void pattern(){ for(i=0; i<1024; i++){ Wire.beginTransmission(0x3D); //Start communication with slave Wire.write(0x40); //Data stream for(unsigned char x=0; x<16; x++){ Wire.write(js[i]); //Transmit data to be displayed i++; } i--; Wire.endTransmission(); //End communication with slave } }