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[–] 3 points 8 months ago

what’s the point when all you need is to literally run a single application that only toggles I/O ports or does a bit of comms with an external integrated circuit via I2C, Serial or SPI?

None, but sometimes you need far more functionality. A micro-controller is cheaper and less power hungry than a full fledged SOC, which is why you find them in things like e-ink tablets.

I'm not saying it's common, but given the swath of "high end" internet connected adult toys I wouldn't be shocked if there's a handful running linux.

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