Salutare! Am incercat sa incarc in EEPROM-ul extern, symbol.uri cu dimensiunea de 8x8pixeli sau 8x16pixeli si am reusit:
#include <Wire.h>
#include <EEPROM.h>
#include <Adafruit_SSD1306.h>
#define OLED_ADDR 0x3C
#define EEPROM_ADDR 0x50
Adafruit_SSD1306 display(OLED_ADDR);
// byte symbol[8] = {0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09};
byte symbol[16] = {0XFF,0X81,0XC5,0X6E,0X7E,0X3C,0XBC,0X98,0X18,0X24,0X24,0X42,0X52,0XB9,0XFD,0XFF};
void setup() {
Wire.begin();
display.begin(SSD1306_SWITCHCAPVCC);
display.clearDisplay();
/*
//write symbol to EEPROM
for (int i = 0; i < 8; i++) {
EEPROM.write(i, symbol[i]);
}
//read symbol from EEPROM
for (int i = 0; i < 8; i++) {
symbol[i] = EEPROM.read(i);
}
//display symbol
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
if (symbol[i] & (0x01 << j)) {
display.drawPixel(i, j, WHITE);
}
}
}
*/
//write symbol to EEPROM
for (int i = 0; i < 16; i++) {
EEPROM.write(i, symbol[i]);
}
delay(2000);
//read symbol from EEPROM
for (int i = 0; i < 16; i++) {
symbol[i] = EEPROM.read(i);
}
//display symbol
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 16; j++) {
if (symbol[j] & (0x01 << i)) {
display.drawPixel(i, j, WHITE);
}
}
}
display.display();
}
void loop() {
//nothing to do here
}
Dar cand am vrut sa adaug un symbol de 32x32pixeli, nu prea merge imi afiseaza cu totul altceva: pe orizontala 32pixeli, pe verticala doar 16pixeli.
#include <Wire.h>
#include <EEPROM.h>
#include <Adafruit_SSD1306.h>
#define OLED_ADDR 0x3C
#define EEPROM_ADDR 0x50 // eeprom chip 24LC256
Adafruit_SSD1306 display(OLED_ADDR);
// byte symbol[8] = {0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09};
byte symbol[32][4] = { // 32x32pixeli
0X00, 0X0F, 0XF0, 0X00, 0X00, 0X70, 0X0E, 0X00, 0X01, 0X80, 0X03, 0X80, 0X03, 0X07, 0XF8, 0XC0,
0X04, 0X06, 0X0E, 0X20, 0X08, 0X01, 0X81, 0X10, 0X10, 0X07, 0X81, 0X88, 0X30, 0X08, 0X00, 0X8C,
0X24, 0X18, 0X00, 0X44, 0X4C, 0XF0, 0X00, 0X46, 0X54, 0XC0, 0X00, 0X42, 0X54, 0X20, 0X00, 0X42,
0X93, 0X10, 0X00, 0X41, 0X91, 0X98, 0X00, 0X41, 0X90, 0X8F, 0X00, 0X21, 0X90, 0X60, 0X80, 0X19,
0X80, 0X20, 0X60, 0X01, 0X80, 0X20, 0X38, 0X01, 0X80, 0X40, 0X0E, 0X01, 0X80, 0X20, 0X02, 0X03,
0X40, 0X20, 0X04, 0X02, 0X40, 0X18, 0X04, 0X02, 0X60, 0X08, 0X08, 0X06, 0X20, 0X04, 0X18, 0X04,
0X30, 0X04, 0X60, 0X08, 0X10, 0X0D, 0X80, 0X18, 0X08, 0X09, 0X00, 0X10, 0X04, 0X06, 0X00, 0X60,
0X03, 0X06, 0X00, 0XC0, 0X01, 0XC0, 0X03, 0X00, 0X00, 0X78, 0X1E, 0X00, 0X00, 0X0F, 0XF0, 0X00,
};
void setup() {
Wire.begin();
display.begin(SSD1306_SWITCHCAPVCC);
display.clearDisplay();
delay(3000);
for (int i = 0; i < 32; i++) { // [32] reprezintă numărul de linii (pixeli pe orizontală)
for (int j = 0; j < 4; j++) { // [4] reprezinta numarul de octeti necesari pentru a salva valoarea fiecarui pixel
// 32 pixeli necesita 32/8 = 4 octeti
EEPROM.write(i * 4 + j, symbol[i][j]);
}
}
for (int i = 0; i < 32; i++) {
for (int j = 0; j < 4; j++) {
symbol[i][j] = EEPROM.read(i * 4 + j);
}
}
for (int i = 0; i < 32; i++) {
for (int j = 0; j < 32; j++) {
if (symbol[i / 8][i % 8] & (0x01 << j)) {
display.drawPixel(i, j, WHITE);
}
}
}
display.display();
}
void loop() {
//nothing to do here
}
Stie cineva unde am gresit?
