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20 Mar 2020 00:28:30 UTC
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Inside a solar latte milk frother.
A look inside a random kitchen gadget for frothing milk using solar power. Right after making this video I tried to remove the solar panel and it immediately shattered into fragments!
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=JTRc0BGD7VI
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=JTRc0BGD7VI
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GIFTS
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I was given several interesting gifts at the Glasgow meetups. I thought I'd show you some of them before flying back to the Isle of Man and normality.
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1 month ago
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INSID
inside-an-autonomous-drone-with-beard
Many years ago I was visiting the Terminator T2-3D attraction at Universal Studios in Florida, and in one scene Arnie grabs a drone from the air and smashes it against a pillar. Aside from the drone looking suspiciously like a Danfoss commercial refrigeration fan in disguise, it stuck in my mind that self powered drones like that might actually happen one day.
They did. And here's the spookiest I've come across yet. It's a toy drone that you literally toss into the air and it then darts about randomly, stopping dead-still in the air occasionally and "scanning" the surroundings before moving off again. It can also detect objects to the sides and below it for avoidance purposes.
Note that it does need an ordinary room to work properly, as wall to wall shelving is a bit of a drone trap. (Useful knowledge if you're being hunted by an armed drone.)
Here's a generic eBay search link for them:-
https://www.ebay.com/sch/i.html?_from=R40&_nkw=smart+mini+drone&_sacat=0&_sop=15
Make sure you get the type with four propellers, as there are listings showing flying disco ball variants. Target price is around $12.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=WvvBm5gZoy4
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1 month ago
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VIDEO
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make-a-super-simple-led-tester-and
As part of some recent competition prizes I included a little hand-made LED tester and some LEDs. For those who wish to make one themselves, here's how it's made.
You'll need a PP3 battery snap - It's usually best to get a pack of them. A 330 ohm resistor - the standard quarter watt type is fine. A bit of heatshrink sleeving to cover the resistor and a two pole socket connector of your choice to stuff the LED leads into. I used a Molex style connector, but you could use a two pole Dupont one too. Remember to make sure you get the inserts for your connector as they are often sold separately.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and LEDs at:-
http://www.bigclive.com/coffee.htm
...
https://www.youtube.com/watch?v=HtCdQpamipQ
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MORE
more-oled-stuff-including-the-cause-of
I repaired the other OLED display. The fault had been accelerated corrosion of a plated through hole due to moisture being trapped in that area.
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1 month ago
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inside-a-poundland-9v-alkaline-battery
If you repurpose the internal cells then check polarity. The shell may be positive and pip negative.
Someone recently asked if they could use the internal cells that make up a 9V battery as an alternative to AAAA sized cells. Well there's only one way to find out. Let's open one and measure them.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=jMfmjqMIT3A
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1 month ago
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TEST
test-of-the-yihua-502d-usb-bench-power
I tested this on 110V and it delivered the same output voltages with load. (Just thought I'd mention that.) But this power supply has a few issues as shown in the video. It's a shame as otherwise it's quite a neat little device.
The 1A printed on the label may be the fuse rating. I'm guessing the power supply is rated for the full 2A at 5V continuously.
The hot optoisolator issue is probably because it's operating in its linear region and being part of a shunt regulated supply it is effectively a resistor. In hindsight it would have been interesting to bump the opto's LED current up to 6mA or more to see if it turned the transistor on harder and reduced the dissipation.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=rz-ndgC6BJ4
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1 month ago
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VIDEO
PARKS
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Slightly weird circuitry. This took longer to reverse engineer than expected, but yielded new information on the thermal sensing of Hakko-style soldering irons.
The default temperature of 500C (932F) is quite dramatic for a soldering iron, but there is a way to hack it to a lower temperature if desired.
The circuitry is a bit weird, in that the main control chip may have a stand-alone comparator section, but also monitor its activity externally and override it to shut the iron down. At least, that's my first guess at what's happening. Alternatively it could be ensuring the MOSFET is forced off in sleep mode, although the sleep current draw is very low at about 1uA.
The hack to set a lower bit temperature or allow it to be adjusted is to remove the zero ohm link shown and either solder a fixed value resistor in the two outer holes of the bypassed preset position, or put in a 100 ohm multi-turn preset. If using a single turn potentiometer I'd suggest a value of 56 ohms. I tested with various resistors and got the following results:-
Existing zero ohm link 500C.
10 ohms 460C
22 ohms 410C
33 ohms 360C - common standard electronic soldering temperature.
47 ohms 315C
56 ohms 277C
100 ohms 77C
The construction of the soldering iron seems quite robust, and the default bit temperature will probably make it ideal for automotive wire repairs or fast soldering.
The iron wins lots of points for using the very common soldering iron bit sold in bulk on eBay.
Supporting the channel with a dollar or two on Patreon helps keep it independent of YouTube's quirks, avoids intrusive mid-video adverts, gives early access, bonus footage and regular quiet Patreon live streams.
https://www.patreon.com/bigclive
#ElectronicsCreators
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https://www.youtube.com/watch?v=KPJJBa6-TVQ
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FILLI
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This year we have ten snow machines being used to set a scene for an act. This video shows me filling one and getting a faceful of foam in the process. Note the wind. There's a lot of wind on this job. These machines create a very realistic snow effect by aerating a very weak solution of water and tiny amount of pure surfactant that makes it foam. Like a shampoo, but extremely weak.
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https://www.youtube.com/watch?v=2PDne_RzROM
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VIDEO
DUTCH
dutch-rookworst-smoked-sausage-versus
This experiment involved exposed electrical connections, and should not be copied as it poses a high risk of electric shock. Let me do the dangerous bit while you watch from a safe distance.
It turns out that the smoked sausage available at the local Shoprite is from the Netherlands, where it's known as Rookworst - which literally translates to smoked sausage.
It's ingredients are mainly mechanically separated chicken and pork, formed into a sausage paste.
Let's see if it can beat the German Bratwurst's 957 Watts.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=a5qDoQv_wog
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1 month ago
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video/mp4