this post was submitted on 02 Sep 2023
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ErgoMechKeyboards

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Ergonomic, split and other weird keyboards

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¹ split meaning a separation of the halves, whether fixed in place or entirely separate, both are fine.
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Hey there,

Hoping someone could point me to a PCB that is using a Blackpill and a ST7789V OLED display. I have the above and am not 100% on which pins to wire up. GND is obvious. VCC I’m pointing to 3.3V, then there is:

  • CS
  • DC
  • Reset
  • SDA
  • SCL

The smaller screens only have SDA & SCL. Can anyone confirm whether the others are optional, mandatory, whether there are specific/preferred pins?

I’m feeling a little lost at the moment, so hoping for some guidance.

FYI this is the specific display: here

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