Compared to the old 8-bit Arduinos, it’s incredible how cheap modern microcontrollers like the ESP32 have become. But there are even cheaper options out there if you don’t need that …read more (https://hackaday.com/2025/10/23/10-cent-microcontroller-makes-music/)

Announcing the 2025 Hackaday Superconference Communicator Badge
https://hackaday.com/2025/10/23/announcing-the-2025-hackaday-superconference-communicator-badge/

It’s the moment you hard-core hardware nerds have been waiting for: the reveal of the 2025 Hackaday Supercon Communicator Badge. And this year, we’ve outdone ourselves, but that’s thanks to …read more (https://hackaday.com/2025/10/23/announcing-the-2025-hackaday-superconference-communicator-badge/)

2025 Component Abuse Challenge: Nail Your Next Decal
https://hackaday.com/2025/10/23/2025-component-abuse-challenge-nail-your-next-decal/

One of the hardest parts of a project — assuming it makes it that far — is finishing it up in an aesthetically pleasing manner. As they say, the devil …read more (https://hackaday.com/2025/10/23/2025-component-abuse-challenge-nail-your-next-decal/)

A Logical Clock That Pretends To Be Analog
https://hackaday.com/2025/10/23/a-logical-clock-that-pretends-to-be-analog/

[kcraske] had a simple plan for their clock build. They wanted a digital clock that was inspired by the appearance of an analog one, and they only wanted to use …read more (https://hackaday.com/2025/10/23/a-logical-clock-that-pretends-to-be-analog/)

Keep An Eye On Your Air-Cooled Engine
https://hackaday.com/2025/10/23/keep-an-eye-on-your-air-cooled-engine/

There was a time, long ago, when passenger vehicles used to be much simpler than they are today. There were many downsides of this era, safety chief among them, but …read more (https://hackaday.com/2025/10/23/keep-an-eye-on-your-air-cooled-engine/)

Making the Smallest and Dumbest LLM with Extreme Quantization
https://hackaday.com/2025/10/23/making-the-smallest-and-dumbest-llm-with-extreme-quantization/

The reason why large language models are called ‘large’ is not because of how smart they are, but as a factor of their sheer size in bytes. At billions of …read more (https://hackaday.com/2025/10/23/making-the-smallest-and-dumbest-llm-with-extreme-quantization/)

Automatically Serving Up Canned Cat Food
https://hackaday.com/2025/10/23/automatically-serving-up-canned-cat-food/

If there’s any one benefit to having a cat as a pet instead of a dog, it’s that they’re a bit more independent and able to care for themselves for …read more (https://hackaday.com/2025/10/23/automatically-serving-up-canned-cat-food/)

Tommy Flowers: How An Engineer Won The War
https://hackaday.com/2025/10/24/tommy-flowers-how-an-engineer-won-the-war/