But it’s a pretty cool rabbit hole that leads to homebrew neon seven-segment displays on ... which [Mark] did with plus-minus and equal sign modules. All of these went together into a two ...

Most DIY neon signs don't need fancy programming. But if you want to get fancy, you might use an SPI interface. It's like learning to drive stick - not necessary, but it gives you more control.

Explore how each zodiac sign can channel their unique traits into DIY crafts. From Aries’ neon signs to Pisces’ watercolor ...