New Tricks for Old Dogs: A thread to post in when you find a better way to do something
- Thread starter svetz
- Start date
I put those on my wishlist. I really dislike wire nuts.
There are similar fire suppressant devices that can be deployed in vehicles, like under the hood. BigTruckBigRV did a review that can be found here:
However, I think he subsequently removed all the devices after he experienced premature deployment. I can't find the follow-on video.
Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,522
What is its rating?
UL listed?
Extinguishing agent? (may not want it around electrical/electronic equipment)
Nothing new under the sun:
svetz
Works in theory! Practice? That's something else
Data logging directly to GoogleDocs
In an unrelated project, I wanted to get a trendline from some remote sensor data 24x7. So I googled to see what others were doing and was blown away to see that you could setup a GoogleDocs spreadsheet as a web URL and have it act as a data logger repository. From there it's easy peasy to plot the data in a graph. Here's the link that got me going, it's about data logging for SmartThings sensors, but the first part about setting up GoogleDocs should be enough to get someone familiar with JSON going. If you google around you can probably find a better set of instructions.
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svetz
Works in theory! Practice? That's something else
Cheap EndoScope
You've probably read about this one in trying to fix my washer tank or Builder's mark threads, but this thing has been incredibly useful everytime I can't quite see what's going on. I even used it to spy on a wall interior to avoid missing pipes/wires with a sawzall. The other day in the kayak, I started thinking I might be able to use it as an underwater camera... too much lightning today to try... but soon. ?
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svetz
Works in theory! Practice? That's something else
USB Microscope
Saw one of those inexpensive ($30) USB Microscopes with 1600x resolution and thought, what! Turns out they're measuring resoltion differently, here's a video that explains it.That guy also has another video reviewing them, and the one he found the most useful was the $9 one that clipped over the cell phone lens.
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That said, they are fairly inexpensive and can be useful for the right things (e.g., more toys!)
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WoodsieLord
New Member
I have one of the usb microscopes and despite the fact that are cheap and incomparable with the real things... I never had a "real thing" at reach. I grew up with paper manuals at school that had a few printed images of what you would see with a microscope.USB Microscope
Saw one of those inexpensive ($30) USB Microscopes with 1600x resolution and thought, what! Turns out they're measuring resoltion differently, here's a video that explains it.
That guy also has another video reviewing them, and the one he found the most useful was the $9 one that clipped over the cell phone lens.
That said, they are fairly inexpensive and can be useful for the right things (e.g., more toys!)
I am happy this 30 bucks microscope exists for it will actually enhance the learning experience for young generations.
I like taking pictures of smallish animals or bugs that try to eat my plants. (I want to see them big so I can swear to them more clearly)
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svetz
Works in theory! Practice? That's something else
| Roughly Measuring Power Quality This is a cool trick to get an idea as to how much harmonic distortion you have. You know how in AC Vpeak = VRMS x √2? Turns out that's true for a perfect sinewave. So, if your multimeter can read peak as well as RMS voltage, you can use the formula to see how far off true your system is (ref). |  |
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