Moritz König
GERMANY • + Follow
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Jun 18,2021
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Circoled - Eight tiny OLED displays arranged in a circle

It's a scrolling message display with 8 tiny OLED displays, arranged around a PCB and controlled by an ESP32. https://youtu.be/KZTIBoHtouM
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Published: Jun 18,2021
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Topic
DIY Electronics
LED Displays & Matrices
IoT
esp32 circoled oled moekoe
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  • do you have file for assembly for this pls :(

    Dec 03,20210 Comments
    Reply

  • I have been curious about how you drive all of the screens so well. Looking for the controller chip as the OLED do not have one individually. Maybe I am blind, did not see it in the BOM and there was no top layer Silk. When working with premade units each have a controller chip and the only way to connect more than two is to big bang the whole mess with 3 I2C channels. That makes a lag nightmare. Most say forget the OLE and just use a larger LCD over SPI. But would still like to understand what you have come up with.

    Oct 04,20211 Comments
    Engineer 2021-12-02 18:34:45Reply

    Hey Raymond, He is using a I²C switch to multiple the I²C outputs. You can find one here: https://www.ti.com/lit/ds/symlink/tca9548a.pdf?ts=1638434685150

    Reply
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