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by david-given
3861 days ago
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Can the HDMI port be abused for some kind of networking? There are a whole bunch of extra features tucked away inside HDMI. I know the Pi doesn't support Ethernet-over-HDMI, because it's missing the necessary PHY, but apparently it does support I2C-over-HDMI. I2C isn't very fast (tops out at 3.4Mbit, if you're lucky); is there anything else which could be used hidden inside somewhere? One interesting thing about I2C, though, is that it would be cheap and easy to build a chassis with a whole bunch of these $5 modules wired together via I2C. It's almost certainly not cost effective in any way, but would be interesting, particularly if you could get useful work out of it... |
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