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by ThrowawayR2 955 days ago
USB GPIO dongles are a cheap addon to any x86 PC, e.g. "Adafruit General Purpose USB to GPIO" at https://www.adafruit.com/product/2264
1 comments

These tend to have buffer underrun issues causing latency in the order of seconds, requiring deeper knowledge in the embedded field to mitigate.

Most educational content that involve the Pi tend to use system GPIO libraries and integration, making other SBCs or USB expansion boards difficult to use for newcomers. The Pi is a platform other than the hardware, their forum should be more welcoming though.