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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/)
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/)
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/)
[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/)
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/)
[ZXGuesser] has pulled off a true feat of Meccano engineering: building a Meccano Hellschreiber machine. The design is a close replica of the original Siemens Feld-Hell machine as documented here. …read more (https://hackaday.com/2024/07/02/meccano-based-hellschreiber-machine/)