ESP8266 Community Forum

- Fri Jan 01, 2016 5:53 pm #37650 Hi!
I ordered the wrong OLED screen by a mistake. I accidentally bought one with an SPI interface instead if i2c. I got it working with an ordinary Arduino using u8glib, but how can I get this OLED screen to work with the ESP8266? I haven't found any working code yet. I've tried with the Adafruit GFX library, but it requires an OLED screen with the reset pin broken out (mine doesn't). Does anyone know how I can get this screen up and running?


This is the OLED screen I bought

- Fri Jan 01, 2016 6:49 pm #37654 Mine is I2C, but I2C constructor also requires a RESET pin. I've simply put a dummy zero, in such case, it doesn't not try to do a reset.
You should try that with your SPI version.

- Fri Jan 01, 2016 7:11 pm #37656 Where did you put in a dummy zero? In the constructor?
mine looks like this, and arguments represents GPIOs:

Code: Select allESP_SSD1306 display(OLED_DC, OLED_RESET, OLED_CS);

- Fri Jan 01, 2016 8:17 pm #37660 Yes !
that would becomes :

Code: Select allESP_SSD1306 display(OLED_DC, 0, OLED_CS);