I2C sweep check practically all numbers

Projects General Guidance
12

Hello Vizier,
Try this code. If x03c does not work then try 0x3d ?
Code from sample. I hope this is some help.

#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>

// OLED display TWI address
#define OLED_ADDR 0x3C

Adafruit_SSD1306 display(-1);

#if (SSD1306_LCDHEIGHT != 64)
#error("Height incorrect, please fix Adafruit_SSD1306.h!");
#endif

void setup() {
// initialize and clear display
display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
display.clearDisplay();
display.display();

// display a pixel in each corner of the screen
display.drawPixel(0, 0, WHITE);
display.drawPixel(127, 0, WHITE);
display.drawPixel(0, 63, WHITE);
display.drawPixel(127, 63, WHITE);

// display a line of text
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(27,30);
display.print("Hello, world!");

// update display with all of the above graphics
display.display();
}

void loop() {
// put your main code here, to run repeatedly:

}

  • Top left pixel – x = 0, y = 0.
  • Top right pixel – x = 127, y = 0.
  • Bottom left pixel – x = 0, y = 63.
  • Bottom right pixel – x = 127, y = 63.