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[Solved] SDA and SCL pin locations for this display module—can anyone identify from photos?

Kamel81 366 7
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  • #1 21209246
    Kamel81
    Level 12  
    SDA and SCL pin locations for this display module—can anyone identify from photos? SDA and SCL pin locations for this display module—can anyone identify from photos? .

    I was given such a module as a gift, but unfortunately, I don't know on which ports the SDA and SCL are connected, supporting the display? Perhaps someone has an identical board and is able to help?
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  • #6 21209304
    tos18
    Level 42  
    Dear Colleagues
    The author has a module with a built-in display
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    #7 21209331
    inot
    Level 37  
    I don't know if this is the same model.
    https://draeger-it.blog/arduino-tutorial-61-nodemcu-esp8266-mit-oled-display/
    This one looks the same (dimensionally). Unfortunately without description.
    https://www.banggood.com/NodeMCU-ESP8266-Deve...on-ESP8266-p-1995538.html?akmClientCountry=DE¤cy=EUR&cur_warehouse=CN&createTmp=1&a=1725013615.1263&DCC=PL
    Best to trace the paths to the display.
  • #8 21209358
    Kamel81
    Level 12  
    SSD1306Wire display(0x3c, D2, D1);
    These settings helped this display to work correctly.
    Thank you for your help.
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Topic summary

A user inquired about the SDA and SCL pin locations on an unidentified display module shown in provided photos. Responses suggested trying default ESP8266 NodeMCU pins: D1 for SCL and D2 for SDA, referencing common OLED display wiring conventions. Links to tutorials and similar NodeMCU OLED modules were shared for guidance, emphasizing the importance of tracing display connections and considering library configurations. The user confirmed successful operation using the SSD1306Wire library with the display address 0x3C, assigning SDA to D2 and SCL to D1 pins, resolving the issue.
Summary generated by the language model.
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