Your Battery Holder Is Also Your Power Switch With ToggleSlot

We really like PCB-level hacks, especially ones that show ingenuity in solving a real problem while being super cheap to implement. Hackaday.IO user [Steph] wanted a cheap way to switch a wearable …

2024 Tiny Games Contest: Salsa One Handheld Requires No PCB

If you’re thinking about building a single tiny game or even a platform, you might be tempted to use a single button for everything. Such is the case with [Alex]’s Salsa ONE minimalist …

ATtiny85 Snake Game Is A Circuit Sandwich

If there’s any looming, unwritten rule of learning a programming language, it states that one must break in the syntax by printing Hello, World! in some form or another. If any such rule exis…

Coin Cell Eliminator Does More Than Save Batteries

Coin cells are useful things that allow us to run small electronic devices off a tiny power source. However, they don’t have a lot of capacity, and they can run out pretty quickly if you&#821…

Weather Station Dumps CR2032 Cells, Gains 18650

Despite the fact that we’re rapidly approaching the year 2022, there are still an incredible number of gadgets out there that you’re expected to power with disposable batteries. Sure yo…