Sanity check for LiFePO4 Charger Design
So, there are these great 32700 LiFePO4 batteries that showed up in my local industrial market. For like USD 2$!...
Considering positioning strategies for autonomous mechanum-wheeled robots
Disclaimer: this is not specifically for a commercial product, but various things I design sometimes get commercialized. I mention this so that you may decide whether you want to weigh in. If it’s commercialized, I will probably make very little money but a bunch of university students may get a neat STEM program in the...
A nightlight with orientation control
So I wanted to design a children's toy, where the electronics could last 100 years (ignoring mechanical abuse). I figured some people here might be interested....
Transistor particle detector not functioning as expected (voltage.vn)
What I've done is take a large 2n3055 BJT NPN power transistor, and decap it (it is a large metal-can type). Then I carefully removed any coating from the exposed silicon (it typically has a dab of silicone potting compound on it)....
Since bone is piezoelectric, can I make a working oscillator from it?
I've wondered this occasionally over the years, but never got it working....
Turning something ugly into something beautiful (voltage.vn)
This is a story about something that was entirely unlikely to turn our wholesome, but somehow did....
I can guess what happened here (voltage.vn)
I'm sure someone was complying maliciously here, but I'm not sure who....
Dispose of financial records? You got it, boss.
So I once made the mistake permitting a client to store some (say a dozen) boxes of financial records in my home for a couple of weeks. By 'permit', I mean they just dumped them there, and I didn't physically restrain them from leaving. This is in Vietnam, where you are required by law to keep your corporate records for 35...