Collaborate Disseminate
Bluetooth is a good way to connect devices that are near each other. However, it can drain batteries which is one reason Bluetooth Low Energy — BLE — exists. [Drmph] …read more Continue reading A Low Effort, Low Energy Doorbell
It is old news that you can print PCB artwork on glossy paper and use a clothes iron to transfer the toner to a copper board, which will resist etchant. …read more Continue reading Toner Transfer, but Not for PCBs
If you read Japanese, you might have seen the book “Design and Implementation of Microkernels” by [Nu Tian Sheng]. An appendix covers how to write your own operating system for …read more Continue reading Writing a RISC-V OS From Scratch
Many of us used “big iron” back in the day. Computers like the IBM S/360 or 3090 are hard to find, transport, and operate, so you don’t see many retrocomputer …read more Continue reading Retro Big Iron for You
[Stephen Woodward] is familiar with digital potentiometers but is also familiar with their limitations. That spurred him to create the PWMPot which performs a similar function, but with better features …read more Continue reading Try a PWMPot
There are many AI models out there that you can play with from companies like OpenAI, Google, and a host of others. But when you use them, you get the …read more Continue reading Running AI Locally Without Spending All Day on Setup
[Nicholas Carlini] found some extra time on his hands over the holiday, so he decide to do something with “entirely no purpose.” The result: 84,688 regular expressions that can play …read more Continue reading Regular (Expression) Chess
We always enjoy videos from the [Mathologer], but we especially liked the recent video on the Helicone, a toy with a surprising connection to mathematics. The toy is cool all …read more Continue reading The Helicone: Toy or Mathematical Oddity?
We found it nostalgic to watch [ve3iku] fire up an old Loran-A receiver and, as you can see in the video below, he got it working. If you aren’t familiar …read more Continue reading Before GPS There Was LORAN
We like mechanical calculators like slide rules, but we have to admit that we had not heard of the Ott Derivimeter that [Chris Staecker] shows us in a recent video. …read more Continue reading Mechanical Calculator Finds Derivitives