One Ring Light To Fool Them All Into Thinking You’re Well-Rested

We know you’re beautiful, but maybe that cheap web camera from 2007 doesn’t always project your best image. Although web cameras are starting to come back down from the pandemic price gouging days, you could just build yourself a ring light and go from there, because better light may be all you need to look great.

Of course, this isn’t going to be cheaper than just buying a ring light, but if you already have a Circuit Playground and 3D printer lying around, you’re about halfway to owning one that’s much cooler than anything you can buy. The only other major hardware is the RGBW LED ring, the slide pots that adjust the light color, and the clicky little button that exits out of Zoom calls.

The business part is made to mount right over the camera, so the only part that has a footprint is the control box. No need to make space for a tripod or another boom. If you’re worried about staring into a bunch of lights, there’s a diffusing ring among the print files. We think this setup looks great, especially since [Southern Fried Science] built a light guide into the enclosure so those LED on the Circuit Playground don’t go to waste.

Do you just wish you had a more satisfying way to leave Zoom calls? If there’s a stud near your desk, it doesn’t get much more satisfying than a pull chain. If the only stud around is you, then use a giant mushroom button.

Via adafruit

SIM Card Connectors And White PCBs Make Huge LED Snowflakes Happen

[Mike Harrison] talked about designing and building a huge scale LED lighting installation in which PCBs were used as both electrical and mechanical elements, and presented at Electromagnetic Field 2016. The project involved 84,000 RGBW LEDs, 14,000 microcontrollers and 25,000 PCBs. It had some different problems to solve compared to small jobs, but [Mike] shared techniques that could be equally applied to smaller scale projects or applications. He goes into detail on designing for manufacture and assembly, sourcing the parts, and building the units on-site.

The installation itself was a snowflake display for a high-end shopping mall in Hong Kong in the 2015 Christmas season. [Mike] wanted a small number of modular boards that could be connected together on-site to make up the right shapes. In an effort to minimize the kinds of manufacturing and parts needed, he ended up using modular white PCBs as structural elements as well as electrical. With the exception of some minor hardware like steel wire supports, no part of the huge snowflakes required anything outside of usual PCB manufacturing processes to make. The fewer suppliers, the fewer potential problems. [Mike] goes into design detail at 6:28 in the video.

For the connections between the boards, he ended up using SIM card connectors intended for cell phones. Some testing led to choosing a connector that matched up well with the thickness of a 1.6mm PCB used as a spacer. About 28,000 of them were used, and for a while in 2015 it was very hard to get a hold of that particular part, because they had cleaned everyone out! Continue reading “SIM Card Connectors And White PCBs Make Huge LED Snowflakes Happen”