Collaborate Disseminate
A monochromator is an optical instrument that permits only a narrow selection of wavelengths to be transmitted from a source, and the particular model [Doug] obtained renders visual light monochromatic …read more Continue reading Vintage Monochromator Makes Monochromatic Light, Mechanically
Flipper Zero is an open-source multitool for hackers, and [Pavel] recently shared details on what goes into the production and testing of these devices. Each unit contains four separate PCBs, and …read more Continue reading How the Flipper Zero Hacker Multitool Gets Made and Tested
There are a lot of good reasons to have a better understanding of one’s household power use, and that is especially true for those that do their own solar power …read more Continue reading Live Energy Monitor Helps Plan Power-Hungry Appliance Use
A camera dolly can be fantastic filmmaking tool, and [Cornelius] was determined to create his own version: the “Dope” DIY Dolly. The result not only upped his production quality, but …read more Continue reading DIY Camera Dolly Costs More Time than Money
Old electrolytic capacitors are notorious for not working like they used to, but what exactly does a bad capacitor look like, and what kinds of problems can it cause? Usually …read more Continue reading Faulty Electrolytic Caps Don’t Always Look Bad
Want to display a PNG file on a display attached to an Arduino or other microcontroller board? You’ll want to look at [Larry Bank]’s PNGdec, the Arduino-friendly PNG decoder library …read more Continue reading PNG Image Decoding Library Does it With Minimal RAM
In lamp design, bulbs are usually given generous clearances because they get hot during use. LED bulbs however give off comparatively little heat, which opens a few new doors. [Mark …read more Continue reading Big 3D-Printed Lamp Tries Some New Features
[Ken Shirriff]’s analysis of a fascinating high-tech paperweight created by GE at the height of the space race is as informative as it is fun to look at. This device …read more Continue reading High-Tech Paperweight Shows off Working 60s-era Thin-Film Electronics
[Mikst] has been working on wearable electronics and sensors for a long time, and shared the results of a different kind of bend sensor that fits directly onto the skin. …read more Continue reading Skin-Mounted Wearable Bend Sensor Gets Close and Personal
For devices that are destined for momentary and infrequent use as well as battery power, some kind of power saving is pretty much a required feature. For example, when [PJ …read more Continue reading USB Power Bank’s Auto-Off Becomes Useful Feature In Garage Door Remote