“This is a self-contained low-power computer with its own display and keyboard that you can program in uLisp, a version of the high-level language Lisp for microcontrollers”
Time to take a stab at this thing. The LM338k regulator has finally failed on this WhiteStar platform driver board. I wish there was a switching PSU replacement for it like there is for the LM323K used in WPC games.
The regulator is at the upper left corner with a huge heat sink. It runs quite hot!
Direct generation of radio waves using a special generator:
Next super long wave Grimeton #SAQ transmission on 17.2 kHz will be on Alexanderson Day July 6, tuning of the transmitter 8:30 UTC, transmission 9:00 UTC
Since it is in the audio spectrum, It can be received in Europe using merely a long wire and a sound card input! More specialized loop or active antennas are advisable. #hamradio #electronics
On Friday, I had pan-fried, left over, macaroni cheese for dinner. The START / STOP buttons on my microowave have stopped working, so I couldn't reheat it.
I'm trying to fix the buttons now. They are on a flat plastic panel and seem to have contacts that get better contact when pressed, and I think that they now longer "spring" open again.
I learned some days ago how #moisture gets trapped inside #sealed enclosures used for #electronics when exposed to daily cycles of heat and cold.
The cold creates lower pressure inside. If that overpowers the seals, then outside air gets sucked in, carrying moisture. This extra moisture can condense inside and accumulate at the bottom.
In the next warm part of the cycle, if some air is expelled because of the higher pressure, that moisture is not carried out because it is in a liquid state.🧵
Repeat this a lot of times, and you will get the electronic circuit diving inside the enclosure 😂
I want to measure how the humidity and pressure fluctuate inside an enclosure that I'm prototyping for an industrial composting temperature sensor, so I assembled a quick hack with an Adafruit ESP32 Feather V2 running SensorWatcher that will report that every 10 minutes. The sensors are an HTU31D for humidity and a BMP388 for pressure.🧵
I bought a Razer headset on a whim while in the electronics store earlier. I don't think I will do that again. To get the fuil features I paid for I had to register and give more private details than I had to give for working in one of the biggest banks of Europe.
Why does an electronics company want those kind of details from me. Why do they want me to give all that to use what I already paid for?
If you're interested in #electronics and #software, you should follow us here in the Fediverse :-)
We try to share our new developments, discoveries and mistakes with you and look forward to a lively exchange!
From time to time we will also draw your attention to new blog posts on blog.zero-iee.com. If you don't want to miss anything, you've come to the right place! :-)
So I had a look on the sigrok wiki, and I've narrowed it down to a couple but still looking for recommendations for a logic analysier that people have used. Looking for something a little better than the £10 streaming type - in the sub £100 price range. Sigrok compatability ( or works on linux and older versions (11.7) of OS X #electronics#esp32
[SOLVED, thanks!] Electronics help, please. This is a 48vdc to 12vdc converter. There's nothing to tell me which wire is the 48vdc in, 12vdc out, and the ground. Can anyone tell which is which looking at this circuit? It's Chinese made. Thanks!
Making goddamn SURE that any gorilla can yank the cable out of this QWIIC socket and it won't come off the board unless the solder itself fails #electronics#maker
Update on microwave/fan hood lamp replacement. I’d bought an LED for it a while back which wouldn't turn off. Also, same brightness for Half or Full. I figured the circuit didn't work due to low power draw, 1.5 vs 25 watts for incandescent. Went to buy incandescent from homedepot and notice their appliance light section consists of those and LEDs with tiny text saying “non-dimmable”, which is another way of saying "no full/half brightness support”.
Tried incandescent and it doesn't shut off or dim either, which probably means the LED somehow broke the circuit? I'm really curious what they are using to control this, seems overly complicated or not very robust. Curious enough to pull microwave off wall mount and take apart? We shall see! #electronics
I'm looking for recommendations for things to help introduce someone to the world of electronics, both instructional materials and hands-on activities like kit building. I've run into a few people now who are really interested after learning about some project, like console modding or repair, and would love to increase their knowledge.
Die blauen LEDs eines Scheinwerfers flackern oder fallen ganz aus. Defekt ist der dazugehörige Transistor. Nach dem Austausch funktioniert der Scheinwerfer wieder einwandfrei.