[GH-ISSUE #1779] NodeMCU OLed display issue #1023

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opened 2026-02-28 00:05:58 +03:00 by kerem · 4 comments

kerem commented

2026-02-28 00:05:58 +03:00

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Originally created by @VeriBotOfficial on GitHub (Aug 6, 2025).
Original GitHub issue: https://github.com/SpacehuhnTech/esp8266_deauther/issues/1779

Have you searched for existing (open and closed) issues describing the same problem?

Yes

I am using ESP8266 nodemcu V3 with built-in oled display. when i try to use the oled with Wire.begin(4, 5); it works great. but when i try to use these scl and sda pins in A_config.h, it doesnt show anything in the display.
i tried some other default scl, sda pins too. nothing worked

Originally created by @VeriBotOfficial on GitHub (Aug 6, 2025). Original GitHub issue: https://github.com/SpacehuhnTech/esp8266_deauther/issues/1779 > Have you searched for existing (open and closed) issues describing the same problem? Yes I am using ESP8266 nodemcu V3 with built-in oled display. when i try to use the oled with Wire.begin(4, 5); it works great. but when i try to use these scl and sda pins in A_config.h, it doesnt show anything in the display. i tried some other default scl, sda pins too. nothing worked

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2026-02-28 00:05:58 +03:00

kerem commented

2026-02-28 00:05:58 +03:00

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@VeriBotOfficial commented on GitHub (Aug 6, 2025):

i found a post that says "go to settings and enable display in web interface". i will try that and let you know

@VeriBotOfficial commented on GitHub (Aug 6, 2025): i found a post that says "go to settings and enable display in web interface". i will try that and let you know

kerem commented

2026-02-28 00:05:58 +03:00

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@VeriBotOfficial commented on GitHub (Aug 6, 2025):

no, it didnt work. it was already enabled

@VeriBotOfficial commented on GitHub (Aug 6, 2025): no, it didnt work. it was already enabled

kerem commented

2026-02-28 00:05:58 +03:00

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@VeriBotOfficial commented on GitHub (Aug 6, 2025):

ok, im stupid... i switched scl and sda. and it worked great

@VeriBotOfficial commented on GitHub (Aug 6, 2025): ok, im stupid... i switched scl and sda. and it worked great

kerem commented

2026-02-28 00:05:58 +03:00

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@deepalarm commented on GitHub (Dec 21, 2025):

ok, im stupid... i switched scl and sda. and it worked great

tried the same board nodemcu v3 with integrated OLED SSD1306
i do all it in source code for my type such as SSD1306 and sda / scl pins out but somehing wrong
web working good...display not working... see a config.h pls

@deepalarm commented on GitHub (Dec 21, 2025): > ok, im stupid... i switched scl and sda. and it worked great tried the same board nodemcu v3 with integrated OLED SSD1306 i do all it in source code for my type such as SSD1306 and sda / scl pins out but somehing wrong web working good...display not working... see a config.h pls