Collaborate Disseminate
We like to think that most common electronic components are essentially commodity items. We don´t buy premium wire or resistors. You just assume these electronic components are more or less …read more Continue reading A Fuse is Just a Fuse, Right?
There was a time when buying a new radio was something many hams could never afford to do. Then came the super cheap — and super controversial — VHF and …read more Continue reading Cheap Ham Radio Improves the Low End UI If Not the RF
Sure, there are — or were — Windows phones. But [neozed] wanted something different. An earlier project ran Windows 10 on the Raspberry Pi 4 with some tricks, but those …read more Continue reading Windows 10 the Hard Way: on a Phone
Parsing algebraic expressions is always a pain. If you need to compute, say, 2+4*2, the answer should be the same as (2 + (4 *2)), not ((2 + 4) * …read more Continue reading Pratt Parsing for Algebraic Expressions
Who was [Leonardo Torres Quevedo]? Not exactly a household name, but as [IEEE Spectrum] points out, he invented a chess automaton in 1920 that would foreshadow the next century’s obsession …read more Continue reading The Chess Computer from 1912
We always enjoy [FesZ’s] videos, and his latest about FREQ function in LTSpice is no exception. In fact, LTSpice doesn’t document it, but it is part of the underlying Spice …read more Continue reading Freq Out with LTSpice
There was a time when seeing an actual computer was a big deal. They were in air-conditioned rooms with raised floors and locked doors. Even at a university, you were …read more Continue reading Vintage Computer Festival Southwest: Bil and Al’s Excellent Adventure
If you are a science fiction fan, you probably hate the theory of relativity. After all, how can the Enterprise get to a new star system every week if you …read more Continue reading Demo Relativity for a C-Note
There are few rites of programmer passage as iconic as writing your first parser. You might want to interpret or compile a scripting language, or you might want to accept …read more Continue reading A Browser Approach to Parsing
It is a time-honored tradition: buy some cheap piece of gear and rewrite the firmware to make it work better. [Gissio] managed to do just that for a cheap FS2011 …read more Continue reading An Open Source Firmware for Cheap Geiger Counters