A resistor in the cloud is worth two in the hand.
Using a single GPIO port on a microcontroller to control N bits of arbitrary parallel binary outputs, e.g., a multi-digital display.
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, ...
A lot of making goes on in this community these days, but sometimes you’ve just gotta do some old fashioned hacking. You might have grabbed an old Speak and Spell that you want to repurpose ...