It wasn’t that long ago that projects with cellular connectivity were everywhere, but with 2G no longer universally available, glory days of cheap 2G modules seem to be on their …read more (https://hackaday.com/2025/08/16/walter-is-a-tiny-cellular-modem-for-your-projects/)

How to Convert a Drain into a Hydropower Facility
https://hackaday.com/2025/08/16/how-to-convert-a-drain-into-a-hydropower-facility/

Over on his YouTube channel [Construction General] shows us how to convert a drain into a hydropower facility. This type of hydroelectric facility is known as a gravitation water vortex …read more (https://hackaday.com/2025/08/16/how-to-convert-a-drain-into-a-hydropower-facility/)

Metric, Imperial, and Flexibility
https://hackaday.com/2025/08/16/metric-imperial-and-flexibility/

Al Williams wrote up a seemingly innocent piece on a couple of rules-of-thumb to go between metric and US traditional units, and the comment section went wild! Nothing seems to …read more (https://hackaday.com/2025/08/16/metric-imperial-and-flexibility/)

The Nibbler was Quite a Scamp
https://hackaday.com/2025/08/16/the-nibbler-was-quite-a-scamp/

The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made everyone wanted a piece of …read more (https://hackaday.com/2025/08/16/the-nibbler-was-quite-a-scamp/)

2025 One Hertz Challenge: STM32 Blinks In Under 50 Bytes
https://hackaday.com/2025/08/16/2025-one-hertz-challenge-stm32-blinks-in-under-50-bytes/

Many of us have run a Blink program on a microcontroller before. It’s effectively the “Hello, World!” of the embedded space. However, few of us have ever thought about optimizing …read more (https://hackaday.com/2025/08/16/2025-one-hertz-challenge-stm32-blinks-in-under-50-bytes/)

MorPhlex: The TPU Filament That Goes Soft After You Print It
https://hackaday.com/2025/08/16/morphlex-the-tpu-filament-that-goes-soft-after-you-print-it/

In FDM 3D printing cycles TPU is a bit of a special filament. Not so much because of its properties, but because it’s rather stretchy even as a filament, which …read more (https://hackaday.com/2025/08/16/morphlex-the-tpu-filament-that-goes-soft-after-you-print-it/)

From Smartphone to a Home Server
https://hackaday.com/2025/08/16/from-smartphone-to-a-home-server/

Some people like their homelabs to be as big and fancy as possible, with racks of new or surplus server hardware sucking down power. [Hardware Haven] evidently has the opposite …read more (https://hackaday.com/2025/08/16/from-smartphone-to-a-home-server/)

A Second Chance for the Single Wheel Monorail?
https://hackaday.com/2025/08/16/a-second-chance-for-the-single-wheel-monorail/