I want to wire up some I²C devices using GX16-4 connectors, also known as 'aviation connectors'. Which pins should go to which I²C wires? If possible I would like to follow existing wiring / pinout conventions.
(Which I am calling "WSTYPE-4106", which is short for
Looking at the front of the male GX16-4 connector,
pins are numbered counterclockwise starting from the bump, 1, 2, 3, 4,
None of these use aviation connectors.
SDA(red, black, yellow, green, respectively).
Some people like to use GX12-4 or GX16-4 for USB keyboards. They seem to have standardized on the following pinout:
This matches the pinout (by number) of regular USB connectors.
These are a thing, and apparently use GX16-3 connectors with pin 1 carrying the positive voltage, and pin 2 the negative (maybe the third pin is used for ground?). See this electricunicycle forum post or this page about charger customization.