Slow Sundays. As usual I was awoken by the Magpies, who have successfully raised a screeching and slightly demented but otherwise identical copy of themselves, but in another tree after abandoning the one outside my bedroom window. They didnt like the...
Mental illness isnt funny, dont let anyone tell you otherwise.Some people are just loopy, and deliberately say things that disturb others' ordered trains of thought. Most of them make it onto a stage at some point, or at least earn a comfortable living...
About Soldering Iron Hey guys,this is Candy, from Guangxi Crossing Aircraft Group. I am an RC fan. Basically, as long as my friends around me organize competitive flying activities, I will participate. But in a competitive flying competition, all...
Some background... The main purpose of my Intel HEX project was to: Check how difficult it is to create non-CPU controllers using microcodeImprove my microcode compiler based on real projectGive me a tool for priming memory of FPGA-based computers when...
Although women represent nearly half of the world's population, the number of technology companies that address their specific health care needs is but a small fraction of the global technology market. In 2019, the Female Technology, “femtech,”...
Philips MiniVac A couple of years back a bought a Philips FC6149 MiniVac vacuum. The performance of the vacuum quickly diminished and currently it is barely operating. I found a nice post of Jasper Sikken where he upgraded his vacuum. Although the post...
I have more than 400 stars and have purchased hundreds and hundreds of items on eBay.I have had some occasional troubles and lately, more than before.But even though the last story is worth a laugh (at my expense but only some tens of USD and at least...
The RPiRENA-based active dosimeter This particle detector works on the same principles as previously assembled dosimeter prototypes. Here, the detection system draws its power from the 3.3 V and 5 V...
Introduction to TransformersA transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil, and the iron core (magnetic core). The main functions...
I've led an incredible life, one too incredible to keep telling, so I'm putting it all here in brief. Buried among the rest of my stuff it will tell my story until I'm ready to write my book. One day I will, but until then. Born Jan 1967, same year as...
This article shows the basics of capacitor safety. 1. My Story When I was a teenager we used to Soviet mains powered have film projector. This project had a small AC motor, that was used to roll the film. It had a capacitor or varistor connected in parallel...
The novel coronavirus has caused nearly more than 80 thousand confirmed cases nationwide, and the respirators and respirators are in short supply in recent months. Not only that, but the situation abroad is also not optimistic. The cumulative number...
No, this isn't like the sound of one hand clapping. Several popular ham antennas depend on multiple sections of coax, which act alternately as radiators and delay lines. The velocity of propagation in the delay lines is well known, being 66% for solid...
Requirement low power : 3V3 or lower, not 5V powered at least 7 GPIOs, 9 preferred. We don't want to read the status of the switches with an ADC. as small as possible cheap easy to solder Availability : 2nd sourced PlatformIO / Arduino support...