Electricity flow is generally invisible, silent, and not something that most humans want to touch, so understanding how charge moves around can be fairly unintuitive at first. There are plenty …read more (https://hackaday.com/2024/07/01/modeling-home-heating-systems-with-circuit-simulation-software/)

FreeCAD Foray: Shells For All Our PCBs
https://hackaday.com/2024/07/01/freecad-foray-shells-for-all-our-pcbs/

Are you the kind of hacker who tries to pick up FreeCAD, but doesn’t want to go through a tutorial and instead pokes around the interface, trying to transfer the …read more (https://hackaday.com/2024/07/01/freecad-foray-shells-for-all-our-pcbs/)

Casting Concrete With A 3D-Printed Mould
https://hackaday.com/2024/07/01/casting-concrete-with-a-3d-printed-mould/

We’re accustomed to covering the use of 3D printing in casting, usually as a lost-PLA former in metal casting. That’s not the only use of the technique though, and perhaps …read more (https://hackaday.com/2024/07/01/casting-concrete-with-a-3d-printed-mould/)

Split A USB-C PD Port Into Three Port-ions
https://hackaday.com/2024/07/01/split-a-usb-c-pd-port-into-three-port-ions/

There’s no shortage of USB-C chargers in all sorts of configurations, but sometimes, you simply need a few more charging ports on the go, and you got a single one. …read more (https://hackaday.com/2024/07/01/split-a-usb-c-pd-port-into-three-port-ions/)

A DIY Proximity Sensor, Using Just Scrap Parts and Software
https://hackaday.com/2024/07/01/diy-proximity-sensor-using-just-scrap-parts-and-software/

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors. …read more (https://hackaday.com/2024/07/01/diy-proximity-sensor-using-just-scrap-parts-and-software/)

SIMD-Accelerated Computer Vision on the ESP32-S3
https://hackaday.com/2024/07/01/simd-accelerated-computer-vision-on-the-esp32-s3/

One of the fun parts of the ESP32-S3 microcontroller is that it got upgraded to the newer Cadence Xtensa LX7 processor core, which turns out to have a range of …read more (https://hackaday.com/2024/07/01/simd-accelerated-computer-vision-on-the-esp32-s3/)

So Much Going On In So Few Components: Dissecting A Microwave Radar Module
https://hackaday.com/2024/07/01/so-much-going-on-in-so-few-components-dissecting-a-microwave-radar-module/

In the days before integrated circuits became ubiquitous, providing advanced functionality in a single package, designers became adept at extracting the maximum use from discrete components. They’d use clever circuits …read more (https://hackaday.com/2024/07/01/so-much-going-on-in-so-few-components-dissecting-a-microwave-radar-module/)