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by galangalalgol 1522 days ago
It seems like all of our modern abstraction layers have lead to a dirth of tinkerers on the edge between metal and software. There isn't any easy gpio on your standard Chromebook or desktop for instance. Yeah you can get a usb to gpio or make one. But being able to sit down at any computer and do something low level was nice.
1 comments
eurasiantiger 1522 days ago
On the contrary, any device which has DDC support and a VGA, DVI or HDMI output will have an i2c pin in the connector. Even DP carries i2c in its aux channel. https://hackaday.com/2014/06/18/i2c-from-your-vga-port/
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galangalalgol 1521 days ago
that is a cool hack, but its just using i2c to talk to an atmega and have it do the gpio. You could just as well use the atmega from usb. Or an esp over wifi.
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