@ 68gt500
> The above 2.42" Oled with the jumpers set for I2C operation work when the reset PIN is connected to the reset pin of the Arduino.
Thanks, I've managed get it working, my config is slightly different:
My board is black one: Diymore 2,42" 128x64 OLED Display Module with I2C and SPI support
- I2C: R4 smd resistor (4.6 kOhm) moved to R3
- R5 jumpered
- Reset pin connected to ESP8266 reset pin
- driver settings: U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
In my case display didn't respond (I thought it could be already dead) until I've connected reset pin to ESP8266 reset pin. If I disconnect it while it is working the screen turns off.
Also, somewhere was mentioned that instead of connecting reset pin to reset you could connect display reset pin to GND via resistor (10 kOhm or greater) and than to some digital pin of your board, so get reset pin low on startup and manually set pin high before lcd init cal)
Not sure what is better for R5: shortcut or resistor (4.6 kOhm similar to others), but shortcut works ok and it is easier to make.