Collaborate Disseminate
Conductive filament isn’t an ideal electrical conductor, but it’s a 3D-printable one and that’s what makes [Hercemer]’s 3D-printed flashlight using conductive filament work. Every part of the flashlight is printed except for the 9 volt battery and LEDs. Electrically speaking, the flashlight is a small number of LEDs connected in …read more
Continue reading 100% Printed Flashlight: Conductive Filament and Melted-in Leads
Kotlin is a relatively new programming language; a derivative of Java with lots of little handy functional bits such as coroutines. [Foalyy] is porting an app to Android and learning Kotlin at the same time, and after wrapping their mind around coroutines, has written up a concise five-part tutorial …read more
Continue reading Grasp Kotlin’s Coroutines With This Short Tutorial
There are more free 3D models online than one can shake a stick at, but what about paid models? Hosting models somewhere and putting a buy button in front of the download is certainly a solved problem, but after spending some time buying and printing a variety of non-free 3D …read more
Continue reading 3D Printering: The World of Non-Free 3D Models Is Buyer Beware
The Bosch BME680 is a super-capable environmental sensor, and [Random Nerd Tutorials] has married it to the ESP32 to create an air quality meter that serves as a great tutorial on not just getting the sensor up and running, but also in setting up a simple (and optional) web server …read more
Continue reading Two-Part, Four-Wire Air Quality Meter Shows How It’s Done
[Kryzer Channel] takes making a DIY RC car to a whole new level with this prop-driven electric car that is made almost entirely out of cardboard (YouTube video, also embedded below.) By attaching an electric motor with a push prop to the back of the car, [Kryzer] avoids the need …read more
Continue reading Prop-Driven Cardboard RC Car Doesn’t Skimp on Performance
Some monitors lack the holes on the back that make them VESA-compliant, so mounting them on a monitor arm can be a non-starter. To handle this, [Patrick Hallek] designed and 3D printed these adapter arms to make flat monitors mount to VESA hardware whether they want to or not.
How …read more
About four years ago, [Russell Graves] created what was, to him, the ultimate work-from-home environment: an off-grid office shed. The shed might look a bit small, but it’s a considerably larger workspace than most people in an office are granted. Four years later, in the middle of a global pandemic, …read more
Continue reading Four Years Later, Off-Grid Office Shed Still Rocks
It’s been just over a year since Valve released Index, their flagship VR system, and it’s worth looking back at this GitHub repository as a fine example of how to provide supporting materials to a hacker-friendly hardware design. The image above shows off one of the hacker-friendly design elements: an …read more
Continue reading Want to Support Hacker-friendly Hardware Design? Follow Valve’s Example
[Chris Mullins] wanted to automate opening and closing the slats of mini blinds in his apartment, and came up with a system to do it as a fun project. Manually opening and closing the slats means twisting a rod. Seems straightforward to automate that, but as usual when having to …read more
Continue reading Automating Mini Blinds the Rental-Friendly Way
Cameras are getting smarter and more capable than ever, able to run embedded machine vision algorithms and pull off tricks far beyond what something like a serial camera and microcontroller board would be capable of, and the upcoming Vizy aims to be even smarter and easier to use yet. Vizy …read more
Continue reading Vizy the AI Camera Aims to Ease Machine Vision