ESP32 Freezer Alarm Keeps Tabs on Tricky Door
https://hackaday.com/2023/07/27/esp32-freezer-alarm-keeps-tabs-on-tricky-door/

Leaving your freezer door open accidentally is a great way to make a huge mess in the kitchen. [Guy Dupont] had a freezer that would regularly fail to close properly, …read more (https://hackaday.com/2023/07/27/esp32-freezer-alarm-keeps-tabs-on-tricky-door/)

Did TETRA Have a Backdoor Hidden In Encrypted Police And Military Radios?
https://hackaday.com/2023/07/27/did-tetra-have-a-backdoor-hidden-in-encrypted-police-and-military-radios/

Encrypted communications are considered vital for many organizations, from military users to law enforcement officers. Meanwhile, the ability to listen in on those communications is of great value to groups …read more (https://hackaday.com/2023/07/27/did-tetra-have-a-backdoor-hidden-in-encrypted-police-and-military-radios/)

Magnetic Gearbox, Part 2: Axial Flux Improves Performance
https://hackaday.com/2023/07/27/magnetic-gearbox-part-2-axial-flux-improves-performance/

The number of interesting and innovative mechanisms that 3D printing has enabled always fascinates us, and it’s always a treat when one of them shows up in our feeds. This …read more (https://hackaday.com/2023/07/27/magnetic-gearbox-part-2-axial-flux-improves-performance/)

A Simple One-Handed Solder Feeder
https://hackaday.com/2023/07/27/a-simple-one-handed-solder-feeder/

Soldering can get frustrating when you’re working fast. It often feels like you don’t have enough hands, particularly on jobs where you need to keep feeding solder in a hurry. …read more (https://hackaday.com/2023/07/27/a-simple-one-handed-solder-feeder/)

A Wigglegram Lens With Variable Aperture
https://hackaday.com/2023/07/27/a-wigglegram-lens-with-variable-aperture/

Wigglegrams are those weird animated pictures you’ve seen that seem to generate a 3D-like effect. [scealux] had built lenses to take such pictures before, but wanted to take things to …read more (https://hackaday.com/2023/07/27/a-wigglegram-lens-with-variable-aperture/)

Exploring Tropical Rainforest Stratification Using Space-Based LiDAR
https://hackaday.com/2023/07/27/exploring-tropical-rainforest-stratification-using-space-based-lidar/

Even though it may seem like we have already explored every single square centimeter of the Earth, there are still many areas that are practically unmapped. These areas include the …read more (https://hackaday.com/2023/07/27/exploring-tropical-rainforest-stratification-using-space-based-lidar/)

Denim Epoxy Table is a Work of Art
https://hackaday.com/2023/07/27/denim-epoxy-table-is-a-work-of-art/

Epoxy has become a hugely popular material in the woodworking and furniture worlds. Who doesn’t love glossy, translucent finishes, after all? [Cam] recently spotted some neat combinations of epoxy with …read more (https://hackaday.com/2023/07/27/denim-epoxy-table-is-a-work-of-art/)