Emulating All the TRS-80 Software
Even if you didn’t own a TRS-80, the widespread footprint of Radio Shack in malls meant that if you are old enough, it is a good bet you have seen …read more Continue reading Emulating All the TRS-80 Software
Author Archives: Al Williams
Internet Connected Pinball Machine Shows Off Scores
Before video games, there were pinball machines. Not that they don’t exist today, but a modern pinball machine will likely have microprocessors and other fancy things that traditional pinball machine …read more Continue reading Internet Connected Pinball Machine Shows Off Scores
Toroid Transformers Explained
HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered …read more Continue reading Toroid Transformers Explained
Tiny Machine Learning on as Little as 2 KB of RAM
All of the machine language stuff coming out lately doesn’t affect you if you are developing with embedded microcontrollers, right? Perhaps not. Microsoft Research India wants you to use their …read more Continue reading Tiny Machine Learning on as Little as 2 KB of RAM
German Air Force Surplus Teardown
It isn’t clear to us how [mrsylvain59] came into possession of a late-model piece of military gear from the German airforce, but we enjoyed watching the teardown below anyway. According …read more Continue reading German Air Force Surplus Teardown
NASA Help Wanted: Ham Radio Operators Please Apply
NASA’s been recruiting citizen scientists lately, and their latest call is looking for help from ham radio operators. They want you to make and report radio contacts during the 2023 …read more Continue reading NASA Help Wanted: Ham Radio Operators Please Apply
Linux Fu: Sharing Your Single WiFi
If you are trying to build a router or access point, you’ll need to dig into some of the details of networking that are normally hidden from you. But, for …read more Continue reading Linux Fu: Sharing Your Single WiFi
IBM Wants You To Learn Tech
IBM — no stranger to anyone who works in the computing field — has launched a series of training modules on a site called skillsbuild.org. The site targets high school …read more Continue reading IBM Wants You To Learn Tech
Electromagnetic Mechanism Makes Reconfigurable Antenna
Antennas are a key component to any RF gadget. But antennas often only perform well over a narrow band of frequencies. For some applications, this is acceptable, but often you …read more Continue reading Electromagnetic Mechanism Makes Reconfigurable Antenna
Tiny11 Makes Windows 11 Small
If you often spin up a virtual machine just to run Windows, you might be sad that you have to allocate so much space for it. The Tiny11 project provides …read more Continue reading Tiny11 Makes Windows 11 Small