You may or may not be reading this on a smartphone, but odds are that even if you aren’t, you own one. Well, possess one, ...

Using a single GPIO port on a microcontroller to control N bits of arbitrary parallel binary outputs, e.g., a multi-digital display.

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

tap long press drag swipe (a fast drag or flick) pinch without rotation (two scale factors) or with rotation (one scale and angle) Moving gestures (drags, swipes and pinches) can be constrained to ...