Ergonomic, split and other weird keyboards
Posts must be of/about keyboards that have a clear delineation between the left and right halves of the keyboard, column stagger, or both. This includes one-handed (one half doesn't exist, what clearer delineation is that!?)
i.e. no regular non-split¹ row-stagger and no non-split¹ ortholinear²
¹ split meaning a separation of the halves, whether fixed in place or entirely separate, both are fine.
² ortholinear meaning keys layed out in a grid
No excessive posting/"shilling" for commercial purposes. Vendors are permitted to promote their products/services but keep it to a minimum and use the [vendor] flair. Posts that appear to be marketing without being transparent about it will be removed.
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I just build my redox keyboard and I found a problem about the right hand side is not working when connecting via the TRRS cable
Im not familiar with the redox, but i see you got two unpopulated resistor footprints around the trrs connector.
Are you sure the resistors are optional?
I think this is the answer, there might be more issues with the state of the soldering but the build guide says it needs them (indicating they're using i2c for split comms).
OP needs to add 2x 4.7kOhm resistors on one half of the keyboard.