Thanks for such a good tutorial.

How can I set which pins will be used as data pins for the display?

Hi.
Check this I2C tutorial: https://randomnerdtutorials.com/esp32-i2c-communication-arduino-ide/
Regards,
Sara

For the board I’m using, SDA = PIN 14 // GPIO14 (D5) SCL = PIN 12 GPIO12 (D6), how can I modify the SDA/SCL within the code to reflect SDA = PIN 14 // GPIO14 (D5) SCL = PIN 12 GPIO12 (D6) insead of SCL GPIO 5 (D1), SDA GPIO 4 (D2)?

Thank you

found this sample very usefull to display some text on a really cheep oled-display. There is only one problem we found: We have to use a german-charset with some special chars like “ö/ä/ü” to display. How can we fix this problem ? Could you help in this way?

Thanks in advance and greetings,
Manfred

Obrigada.

Hi
Create an OLED object like this (before the setup):
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

Start an I2C communication (replace with the pins you want to use):
Wire.begin(SDA, SCL);

Finally, initialize the OLED:
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false, false)) {
Serial.println(F(“SSD1306 allocation failed”));
for(;;);
}

I hope this helps.

Regards,
Sara

Hi Sara, i know this has been a LONG time since this thread was active, but can you tell me how id go about declaring the GPIOs? For some reason they arent being properly declared as im using a NODEMCU board.. when i use any other sketch that uses the basic setup of clock and data pins it works.

Great!
Thanks for sharing the solution.
Regards,
Sara

I assume you solved your problem as I had the same and I saw yours and wished someone answered so now I will in case someone else stumbles on it.

I just had to update my Arduino IDE to the latest stable version and the error went away.