Categoria: Hackaday (https://hackaday.com/)
38C3: Xobs on Hardware Debuggers
If you just want to use a debugger for your microcontroller project, you buy some hardware device, download the relevant…
Beam me Up: Simple Free-Space Optical Communication
Let’s think of the last time you sent data without wires. We’re not talking WiFi here, but plain optical signals….
Full Color 3D Printing With PolyDye and Existing Inkjet Cartridges
The PolyDye system installed on an Elegoo Neptune 2 printer. (Credit: Teaching Tech, YouTube) Being able to 3D print FDM…
Circuit Secrets: Exploring a $5 Emergency Light
Who would’ve thought a cheap AliExpress emergency light could be packed with such crafty design choices? Found for about $5,…
38C3: Towards an Open WiFi MAC Stack on ESP32
At the 38th Chaos Communications Congress, [Frostie314159] and [Jasper Devreker] gave us a nice update on their project to write…
A Low-Cost Spectrometer Uses Discrete LEDs and Math
A spectrometer is a pretty common lab instrument, useful for determining the absorbance of a sample across a spectrum of…
Let it Snow with a sub $100 snowmaking machine.
[Mattmopar] figured out how to get a white Christmas even if the weather isn’t frightful. He built a simple DIY…
Playing Around with the MH-CD42 Charger Board
If you’ve ever worked with adding lithium-ion batteries to one of your projects, you’ve likely spent some quality time with…
20 GHz LNB Testing and Teardown
Many things have combined to make very high-frequency RF gear much more common, cheaper, and better performing. Case in point:…
Lathe Gears Make a Clock
When you think of making something using a lathe, you usually think of turning a screw, a table leg, or…
