echelon75
commented
4 years ago Hi,
Here is a single demo code: `// Classic Munching Squares effect.
// #include
include "SSD1306.h" // alias for #include "SSD1306Wire.h"
//OLED pins to ESP32 GPIOs via this connecthin: //OLED_SDA -- GPIO4 //OLED_SCL -- GPIO15 //OLED_RST -- GPIO16
SSD1306 display(0x3c, 4, 15);
const unsigned int WIDTH = 128; const unsigned int HEIGHT = 64;
// 128x64 display unsigned char image[WIDTH*HEIGHT/8];
void munching(unsigned char t) {
for (int i = 0; i < WIDTH/8; i++) {
for (int j = 0; j < HEIGHT; j++) {
const unsigned int idx = j(WIDTH/8) + i;
unsigned char c = 0x0;
for (int k = 0; k < 8; k++) {
const unsigned int y = j;
const unsigned int x = (i8)+k;
if ((x^y) < t) {
c |= (1<<(7-k));
}
}
image[idx]=c;
}
}
}
void setup() { pinMode(16,OUTPUT); digitalWrite(16, LOW); // set GPIO16 low to reset OLED delay(50); digitalWrite(16, HIGH); // while OLED is running, must set GPIO16 in high
Serial.begin(115200); Serial.println(); Serial.println();
display.init();
display.flipScreenVertically(); display.displayOn(); display.init(); }
unsigned char t = 0;
void loop() {
munching(t);
t++;
if (t > 128) t = 0;
display.clear();
// display.drawXbm(0,0,128,64,(const char)image);
// If you receive an error during compilation :
// My_SSD1306_On_TTGO_Oled:59:48: error: invalid conversion from 'const char' to 'const uint8_t {aka const unsigned char}' [-fpermissive]
// display.drawXbm(0,0,128,64,(const char)image);
// uncomment this line herafter
display.drawXbm(0,0,128,64,(const uint8_t)image);
// Swap over to get an interleaved munching squares :)
//display.drawFastImage(0,0,128,64,(const char*)image);
display.display();
delay(2);
}`
Regards
Richard
Hi,
I am trying out this simple helloworld code:
https://techtutorialsx.com/2017/12/02/esp32-arduino-interacting-with-a-ssd1306-oled-display/
Would it be possible to add such example to your repo?
Best