Early on, railways primarily used wheels made of wood or iron. The former were cheap and relatively easy to manufacture, while the latter had far superior wear qualities. It may …read more (https://hackaday.com/2023/06/27/luxury-train-cars-used-to-ride-on-paper-wheels/)

ESPboy Turned Into Functional Walkie-Talkie
https://hackaday.com/2023/06/27/espboy-turned-into-functional-walkie-talkie/

The ESPBoy was first built as a hackable open-source game engine and handheld console for educational purposes. However, it’s also a platform that can readily support all kinds of other …read more (https://hackaday.com/2023/06/27/espboy-turned-into-functional-walkie-talkie/)

Honda Headunit Reverse Engineering, And the Dismal State Of Infotainment Systems
https://hackaday.com/2023/06/27/honda-headunit-reverse-engineering-and-the-dismal-state-of-infotainment-systems/

These days the dozen or so ECUs in an average car are joined by an infotainment system of some type, which are typically a large touch screen on the dashboard …read more (https://hackaday.com/2023/06/27/honda-headunit-reverse-engineering-and-the-dismal-state-of-infotainment-systems/)

Bluetooth Battery Monitors That Also Monitor Your Position, Without Asking
https://hackaday.com/2023/06/27/bluetooth-battery-monitors-that-also-monitor-your-position-without-asking/

These days Bluetooth-based gadgets are everywhere, including for car and solar batteries. After connecting them up to the battery, you download the accompanying app on your smartphone, open it up …read more (https://hackaday.com/2023/06/27/bluetooth-battery-monitors-that-also-monitor-your-position-without-asking/)

Build a Tesla Coil With Just Three Components
https://hackaday.com/2023/06/27/build-a-tesla-coil-with-just-three-components/

Tesla coils are beautiful examples of high voltage hardware, throwing sparks and teaching us about all kinds of fancy phenomena. They can also be quite intimidating to build. [William Fraser], …read more (https://hackaday.com/2023/06/27/build-a-tesla-coil-with-just-three-components/)

An ESP In Your Mini TV
https://hackaday.com/2023/06/28/an-esp-in-your-mini-tv/

When miniature LCD TVs arrived on the market they were an object of desire, far from the reach of tech-obsessed youngsters. Now in the age of smartphones they’re a historical …read more (https://hackaday.com/2023/06/28/an-esp-in-your-mini-tv/)

Custom Keyboard Built For Diablo 3 Action
https://hackaday.com/2023/06/28/custom-keyboard-built-for-diablo-3-action/

Custom mechanical keyboards are a great way to show off your passion and skill for electronics and design. They’re also perfect when you need to optimize your setup for a …read more (https://hackaday.com/2023/06/28/custom-keyboard-built-for-diablo-3-action/)

Earth’s Final Frontier: Exploring The Alien Depths of the Earth’s Oceans
https://hackaday.com/2023/06/28/earths-final-frontier-exploring-the-alien-depths-of-the-earths-oceans/