# Ceiling Module |  I2C OLED Display 128x64 blue/yellow

[![grafik.png](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/scaled-1680-/iQrRXdL4puxe0g9J-grafik.png)](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/iQrRXdL4puxe0g9J-grafik.png)

The used OLED displays for [Smart Stepper](https://old.stadtfabrikanten.org/display/TH/Smart+Stepper+-+Overview) have wiring order GND-VCC-SCL-SDA. We figured out that there are nearly identical modules on the market which have another order. The following photo shows another OLED display with order VCC-GND-SCL-SDA. We need to check out that before replacing!

<table class="confluenceTable" id="bkmrk-new-oled-display-sma"><colgroup><col></col><col></col><col></col></colgroup><thead><tr><td class="confluenceTh">**NEW OLED display**</td><td class="confluenceTh">**Smart Stepper OLED display**</td><td class="confluenceTh">**Smart Stepper OLED display**</td></tr></thead><tbody><tr><td class="confluenceTd">[![grafik.png](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/scaled-1680-/VRWt87GKqtKNPtlQ-grafik.png)](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/VRWt87GKqtKNPtlQ-grafik.png)

</td><td class="confluenceTd">[![grafik.png](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/scaled-1680-/02AhDi3l6gbZbMnS-grafik.png)](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/02AhDi3l6gbZbMnS-grafik.png)

</td><td class="confluenceTd">[![grafik.png](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/scaled-1680-/Zq08Vp8hnBparOFC-grafik.png)](https://wiki.stadtfabrikanten.org/uploads/images/gallery/2026-06/Zq08Vp8hnBparOFC-grafik.png)

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