When you said about old ladies using them in potentially deadly scenarios, I was reminded of a moment in either "Sound on Sound" or "Future Music" magazine from the 1990s. A power supply for a piece of music kit had a lot of big open vent holes on it, and the author of the review said "It wouldn't pass the "Granny with a Hat Pin" test". This phrase has lived rent free in my mind for the past almost 30 years. Another review described a piece of equipment (Syntechno TeeBee) as having "more holes than a communal love toy". Those were the days!
@AlexanderWright15 ай бұрын
"It wouldn't pass the "Granny with a Hat Pin" test" The IP3X test.
@dcallan8126 ай бұрын
Very clever little chip. We do love a good Granny zapper product, I hope ebay never stop selling bit of tat like this. Interesting video 2x👍
@bigclivedotcom6 ай бұрын
This one came from AliExpress.
@SheldonChambers-ej6wd5 ай бұрын
Granny Zapper; is she any relation to Frank?
@SheldonChambers-ej6wd6 ай бұрын
"Trashy and a bit dangerous but clever." Swipe right.
@wherami5 ай бұрын
ROFL. Thats a keeper
@wiseoldfool5 ай бұрын
I remember girls like that in high school.
@cho4d5 ай бұрын
@@wherami mmmmmmm no. that's a walking talking collection of red flags.
@wherami5 ай бұрын
@@cho4d oh that explains my two divorces lol
@SheldonChambers-ej6wd5 ай бұрын
@@cho4d you have to speculate to ejaculate.
@ChodaBoyUSA5 ай бұрын
"Trashy and a bit dangerous, but clever" describes so many people I know.
@simplydarkhalf39746 ай бұрын
Thank you clive for distracting me through my tireless night. Currently 1:40am
@AndrewJens6 ай бұрын
Perhaps you should Sodastream some alcohol?
@mikemines29315 ай бұрын
@@AndrewJens Or get in a trashy woman.
@bertblankenstein37386 ай бұрын
"I like my circuits, a little on the trashy side".
@bigmouthstrikesagain40565 ай бұрын
He'd have loved some of the suff coming from China in the 70s-80s then.
@garyplewa92776 ай бұрын
Always something new and interesting on Clive's channel
@wyrdlg6 ай бұрын
The wavy track of the plastic repair vid always catches my eyes :D
@wiseoldfool5 ай бұрын
Some things, having been seen, cannot be unseen.
@DavidVR25 ай бұрын
It must be safe because it has a CE mark!😃 100% safe when not switched on! Another great video Clive, have a great day👍
@mbirth5 ай бұрын
CE only means "China Export" in that case.
@SheldonChambers-ej6wd5 ай бұрын
I thought it meant "Crap Electronics" or "Causes Electrocution". Of course, thanks to Brexit, we Brits now proudly display UK CA on all the stuff we import from China.
@hansoverbeeke54425 ай бұрын
Maybe that the EU will adopt a New safety rules/stamp like the Nederland UK approval UKCA that put up on New (electrical) products and not confusing about the 2 CE stamp approval markings
@mernokimuvek5 ай бұрын
@@hansoverbeeke5442 I only remeber seeing UK CA on fluorescent lamps that I collect.
@wisher21uk6 ай бұрын
Very nice unit should be called “ light up your granny “ 😊 thanks Clive
@zebo-the-fat6 ай бұрын
I can't remember the last time I saw a commercial pcb that didn't use surface mount devices!
@waynej96175 ай бұрын
Yes it's nice to see a single layer board with real components.
@piconano5 ай бұрын
You got me at trashy and dangerous. The rest was icing on the cake...
@gvii6 ай бұрын
That tester seemed somehow rather appropriate for demonstrating the device. Though I have to say, the innards of the control box do hit those nostalgia notes right on the nose. Kinda gives me those warm and fuzzies I get whenever I crack open older RF stuff. For all the wonders of the digital age, they do tend to be colossally boring to look at internally even if there is a lot more going on in there. Yeah, it's a silly thing to whine about, but whatever. I'm weird that way.
@Dr.GeoDave5 ай бұрын
Nice color print that you were using. It helps to follow your discussion
@Merv-Bob6 ай бұрын
Very much miss the debauchery (and I use that in a very respectable meaning) of the international food and drink reviews, 'focusing on the drink'. Last one I remembered, the fellows and fellettes enjoyed themselves as I did watching along with a libation in hand. Cheers, Mark
@Merv-Bob6 ай бұрын
OK, grab some snacks and drinks and cohorts and get-to-it !
@farmersteve1296 ай бұрын
I've never been a fan of doing H bridges that way, I much prefer the more conventional 4 wire control so that you can have a guaranteed all off state between phases and avoid shoot through.
@flapjack94956 ай бұрын
Is shoot through an issue with bipolar transistors? I know it is with MOSFETs.
@davidareader6 ай бұрын
In this case, dead time where the two uC pins are both low will guarantee off state also.
@mysock351C5 ай бұрын
Without seeing the other side Im guessing that’s probably why the 470 ohm resistor is there. But, it’s on a low current supply so probably not a huge deal. Plus it’s China. If it was actually right, it would be wrong 😂
@mysock351C5 ай бұрын
@@flapjack9495 it’s really a product of the driver itself if there is not sufficient dead time between transitions.
@davadoff5 ай бұрын
@@flapjack9495yes. If both channels were turned on at the same time, current would flow through the PNP transistor, then through the undrawn 470R + NPN + diode of the second channel, which must be connected to ‘B’ (with the undrawn PNP collector connected to ‘A’). If I understood correctly. I guess the 470R resistors value was chosen for LED current limiting.
@ShawnStafford-19786 ай бұрын
That is sketchy and cool both. I like the LED that works both ways. I read the description that's interesting.
@scottfirman5 ай бұрын
I still remember the fiber optic flowers with a 3 light setup that used a wheel that turned a shutter above the lights, causing the color to change. Modern stuff now days.....goodness!
@marcse7en5 ай бұрын
"Trashy" you say, Big Clive? ... Perfect for your channel, then? 🤣 And if it was pink, it'd be even better! You know I love you, Big Clive! ❤️
@Masonic10166 ай бұрын
If there's room in the case, would it be a good idea to insert a momentary push-to-break switch on the supply to switch modes?
@Elmojomo5 ай бұрын
Thumbs up if you understood less than 10% of Clive's description of the schematic. (I need to know I'm not alone) Still an awesome video, BTW!
@ianmelzer6 ай бұрын
Clive, there is a mystery you might be interested in. Apparently computer RAM sticks with RGB lights are bleaching the back panels of some graphic cards. People are noticing a ghost image on the back of graphics cards that lines up with were there ram sticks are. Blue LED's putting out UV?
@bigclivedotcom5 ай бұрын
Blue light is at the end of the spectrum that can have a bleaching effect on some materials. Even classic 470nm blue.
@thomasmleahy62185 ай бұрын
Where? Their?
@EllAntares5 ай бұрын
Blue LEDs are that evil. Was giving me cringe when I saw 470mn blinding LEDs used as signal lamps on handsfree devices. Bloo tooth sinking into your eyeballs
@DJResR4205 ай бұрын
I have seen royal blue LEDs being used a lot lately that is close to UV and does bleach plastic._
@Fuaarrkk5 ай бұрын
@@thomasmleahy6218Who? Cares?
@devicemodder6 ай бұрын
Dunno why, but I want one
@umbrellacorp.6 ай бұрын
Inuoyasha!. What are you doing out of the Demon World?.😳
@UpLateGeek5 ай бұрын
Off-topic, but I know you're interested in street lighting, and I just watched a crew replace the street lights outside my building. Originally I got a message from the grid operator advising me that they were going to temporarily switch off the power to my place, then they sent me a message saying it was cancelled. That was supposed to happen last week, and then tonight I heard the sound of a hydraulic motor running outside and popped my head out to see a cherry picker and a guy working on the street light. The building's power wire is also connected to that pole, so evidently they worked out that they don't need to disconnect it to work on the street light. Interestingly, the first thing the guy did was switch off the light across the road, which I guess means it's fed from the pole outside my place, and evidently he had to disconnect that before he could disconnect the one he was working on. It looked like he had to replace the cable running from the junction box on the side of the pole to the light, because he did stuff around with a cable for a while before he replaced the light, then he had to feed a new piece of conduit on to cover the wire from the junction box to the base of the light arm (or whatever you call it), and then he finally reconnected it and it lit up. I also noted they replaced the orange tinted presumably fog lights for regular white lights. Not sure why they'd do that, unless the new LED lights somehow don't have issues in fog? Also weirdly, the new lights have a lid on top that flips up. I wouldn't have thought that would be good for water ingress, but I guess it depends how it's implemented.
@NiallWardrop5 ай бұрын
Sounds like the usual first visit to a new job: "Who the #### did that and what were they thinking?"
@eDoc20205 ай бұрын
Depending on the tint of the old lights they might have just been sodium lamps. Sodium lamps are the most efficient old-school lighting technology but put out orange light.
@rolfs21655 ай бұрын
"Old ladies liked them" Yup, my great-aunts had what basically looked like a big duster of glass fibers in a flower vase, with a colour changing light in the base, so the ends of the fibers would cycle through the colours.
@ddzwiedziu6 ай бұрын
I'm not even 60 seconds in and I want to see those LEDs in a chaos board.
@scottgray62765 ай бұрын
The photo of the top of the circuit board looks like a magazine ad for hard candies, from the 60s!
@vonyp60185 ай бұрын
great description. havent done proper discrete electronics on 20 years ( because i now work in IT ) i got it. this would be a great A leve / btec national circuit for theory and fault finding tests because its a basic circuit with a bit of everything in it.
@bikkiikun5 ай бұрын
What is it about the dark-green capactitor sleeves with yellow script that screams: "cheap and soon to blow out its guts", I wonder??
@asdfasdfasdfasdeff5 ай бұрын
The amazon cheap LED lights I replaced in my swimming pool / spa work like that. There is an included remote control but it doesn't work through the water at all, so quickly powering them off and on is how I switch their colors / patterns.
@ShaneH425 ай бұрын
Mmm, tingly flowers
@K31TH3R5 ай бұрын
"Delightfully trashy but also actually quite clever at the same time." As someone cursed with being just intelligent enough to be painfully aware of the blissful ignorance enjoyed by the majority of humanity, but not intelligent or capable enough to really achieve something great, your description of this gismo immediately inspired a strong kinship. Me too.
@BenKonosky5 ай бұрын
That describes my programming skills.
@FirstLast-jl6fr5 ай бұрын
Thru hole... How quaint ! Must have had to dug into the 70's parts bin.
@anthonytidey20055 ай бұрын
Hello Clive I'm looking for a usb tester with usb C and micro connectors. Havent found any yet, do you havre one or any idea's. Thanks for your videos, great technical break down and sarcastic comments.
@bigclivedotcom5 ай бұрын
I think they do exist. You may have to try and decipher the magic keywords on AliExpress.
@amorphuc3 ай бұрын
Wild! Thanks Big Clive.
@TradieTrev5 ай бұрын
Interesting circuit, kinda reminds me of a half baked kids rc car controller. Maybe that's where they got the inspiration?
@T2D.SteveArcs5 ай бұрын
Ha never seen a bridge switched like that. That's pretty clever.. 😃
@snakezdewiggle60845 ай бұрын
Nice one Clive 👍 Think I would have gone with opamps over an mcu.
@Madness8325 ай бұрын
I love your test unit. Let's put 230v through speaker terminals.🤣
@HPD11715 ай бұрын
that is very common in china. I have seen entire production lines with these things. you can buy in little shops what looks like a power strip but its just flimsy plastic like hat you would use to conceal wiring along a wall with a bunch of these speaker terminals glued to it. Inside you will find bare "Copper maybe?" wire connecting line and neutral directly to the speaker terminals with no fuse and about half of the solder joints actually connected. I actually bought a couple just because I love this sort of trashy stuff and its great that you can just buy it off the shelf here.
@johnm20126 ай бұрын
Poundland is selling an Eveready branded RGB smart bulb for £5. It's rated at 8.5W (equivalent to 60W) 806 lumen, adjustable white (2700 - 6500K), 16 million colours, dimmable, controlled by the free Energizer smart app. Worth a look?
@bigclivedotcom6 ай бұрын
Already done.
@HockingVideos5 ай бұрын
interesting little device. is there anyway to run it on DC power ? other than the mains power. would be an interesting thing to use but I don't want to run it on mains power.
@chrisdixon52415 ай бұрын
I had a hard time watching this video... I couldn't stop imagining little old ladies with a blue rinse manically toggling switches and getting a short sharp shock to get the LEDs to match their hair...
@EllAntares5 ай бұрын
I had Xmas tree light thread working on same principle. Some LED died and can't find replacement
@weerobot5 ай бұрын
Danger Will Robinson ..⚡⚡⚡
@alpcns6 ай бұрын
This is, of course, just begging for a new and improved design of the supercomputer!
@twocvbloke6 ай бұрын
It's perfectly safe though, so long as you don't plug it in... :P
@robegatt5 ай бұрын
Very safe if you don't even buy it 😅
@sapereaude3915 ай бұрын
I have a bathroom ceiling light which changes modes when it is switched off and on within a certain time - it's very annoying when you switch it on and it is in brothel mode and you have to find the remote control to put it in boring bathroom light mode. I wish there was a way to disable this 'feature' and just use the remote control.
@V8-friendly5 ай бұрын
It's amazing how they manage to eliminate the very last button to safe a penny. It's similar like with today's electric cars. If the touch screen (as your only interface to everything in your car) fails you literally cannot operate a single thing.
@rolfs21655 ай бұрын
And if you try and operate a touch screen at Autobahn speeds, trying to find the damn wiper speed setting, it might be the last thing you do …
@V8-friendly5 ай бұрын
@@rolfs2165 What's also cool: I have my car now for over 7 years, and I still manage to find new features when digging into the 10th sub-menu of another sub-menu. I also found out, how I can watch DVDs while driving 😎 📺 👀 Sound is like being in the movie theater 🎶 Endless options after jail-break of the entertainment system.
@carlubambi55415 ай бұрын
Fun lighting effects out of a tiny module
@jonno81835 ай бұрын
Aaaaagh - no "One moment please" !!!!!
@robinbrowne54195 ай бұрын
This product proves the old adage that just because you can do something doesn't mean you should.
@gregorythomas3336 ай бұрын
I swear I read GRANNY ZIPPERS in the title and was wondering what kind of zipper it must be for only grannies to use them...damn I need some coffee :)
@dcallan8126 ай бұрын
A really big chunky Zipper for the arthritic hands of Grandad to fumble with. 🤣
@willtucker27746 ай бұрын
I'm 70 years old and can still undo a young woman's bra with just one hand😊 (While she's still wearing it) 😂😂😂😂
@Mitch-Hendren6 ай бұрын
Love it 😉 Proves that years of practice does indeed make perfect
@fatgeekuk5 ай бұрын
I would not bother with detecting when the power is removed. I would simply, at each power up, read the nvm used to store the state to use, and immediately write the next value into it. so that on next power up, it has advanced. it would be simple to test if this is how it works, but turning it off for more time and seeing if it resets to the initial state again or continues with the setting cycle.
@bigclivedotcom5 ай бұрын
That would require non volatile memory. This unit uses a capacitor as persistence memory and a very cheap microcontroller.
@KarldorisLambley5 ай бұрын
it is my 50th birthday today. i became old whilst not paying attention. lol
@naysmith52725 ай бұрын
Happy Birthday - time to get some fancy led lights
@robegatt5 ай бұрын
welcome to the club 😅😮😢
@bigclivedotcom5 ай бұрын
Have a great birthday. 50 is still young these days.
@Wtfinc5 ай бұрын
Anvil? Thats what it’s really called? I thought I made that up. Idk where i would have heard or seen it called that. I always knew it was called that. I always look for it because i can never remember the polarity and the flat side or lead length doesn’t help me
@SwimCoach85 ай бұрын
Is it experience that gives you the idea to cycle the power rapidly or do these units come with instructions? I've often wondered the process. Decades of curiosity or chip data sheets? In any case, I love the videos.....Thank you.
@theonlywoody2shoes5 ай бұрын
@SwimCoach8 Another useful option, if a device has a momentary push button, is to push and hold this to access "hidden" features. A greater than 3 second hold is the most common here, but some other devices have a further option that's accessed by holding for more than 8 to 10 seconds. Have fun!
@SwimCoach85 ай бұрын
@@theonlywoody2shoes Since watching Clive, I always press, double press, try resets, press and hold. I was just curious if he expects these functions or if he stumbled on their availability. My first find (after watching Big Clive) was getting Christmas light to remain a constant color and not flash. Nothing in the instructions about that function! hehehehehe
@bigclivedotcom5 ай бұрын
The listing indicated modes.
@groovejet335 ай бұрын
Hiya Clifford 😊 I've actually missed your "Bearded Ass"😉😋😘 This....genuinely, is the 1st time I've been "AWOL" from 'BIG CLIFFORD' & your tremendously dedicated Content. I just felt that I needed to share my voice, as I've been very quiet......And as Clive knows😮...I'm NEVER Quiet.....😂 .....ALWAYS DAFT..😂 But NEVER 'Closed Lipped' ❤
@TheSlinq5 ай бұрын
aah the MPSA42 and 92, good for driving Nixie tubes.
@bewilderbeestie5 ай бұрын
I wonder how that microcontroller is remembering the setting? It'll be something ridiculously cheap, maybe one of those incredibly simple Padauk jobs --- you can get them for $0.03 a pop (or at least, you could). They start with 64 bytes of RAM and 1kW of program, but no non-volatile storage. Surely this thing isn't using a flash part. Could it be getting away with using the big capacitor to keep the RAM alive for thirty seconds or so and then relying on the user remembering what setting it was on last time once the RAM dies?
@robegatt5 ай бұрын
Exactly, it stays on for some time and detects there is no ac with a pin.
@phils46345 ай бұрын
At least they didn't use SMD. Makes repair or alteration considerably easier (for those of us with not quite so good vision as we used to have!) Nevertheless a neat little device and something I might have an immediate use for!
@davepoul84835 ай бұрын
had this kinda thing in a pool in Chile...
@qwaqwa19605 ай бұрын
Good thing it has all the agency approvals... Phew.
@KeritechElectronics6 ай бұрын
Ladykillers' favorite?
@morelenmir5 ай бұрын
I have one of those power units on its own--bought it nearly ten years ago now. It is exactly the same as yours there--the lowest LED count version. Never used it. Do they still sell them alone?
@bigclivedotcom5 ай бұрын
They do still sell them on AliExpress. The lowest count LED one will still drive much longer strings with reduced intensity. I have a few connected to strings of traditional tungsten lights with all the bulbs replaced with LEDs.
@PrabhakarSharma-qg4ov6 ай бұрын
Very nice information Great work for you Sir ji and Good wark Good morning Sir ji
@d.t.45235 ай бұрын
Thank you, keep working.
@mulhatton5 ай бұрын
Mrs Bucket's lights 😂🍻✌️
@DavidSmith-zx7wz5 ай бұрын
Why would there be a 4148 right next to the CPU? Where the 5.6 resistor is? Thanks for what you do!
@bigclivedotcom5 ай бұрын
Yeah, that's an odd marking on the PCB.
@renowden20105 ай бұрын
Wow - all through hole!
@Slikx6666 ай бұрын
It's like a mini disco. 😀
@michaelmoorrees35855 ай бұрын
"Trashy, a bit dangerous, but clever". I wouldn't expect anything more. Good thing about the capacitor dropper, is that any current draw will limit the DC voltage out, so those MPSA42s and MPSA92s will only a short time, when there's very little current draw. Max current for 240V, 50Hz is ~35mA peak. But at that draw the DC voltage will be low. So extra trashy voltage statistical gambling here. No blinky lights in the shower, please.
@scottzehrung48296 ай бұрын
“Here’s the schematic, fairly logical”!
@PaulSteMarie6 ай бұрын
Odd way to configure an H bridge. I'd expect the bases to be connected together as the input, and the collectors tied together for one side of the output. This looks like they both turn on at the same time, which really isn't what you want.
@robegatt5 ай бұрын
I think that they avoid dead time problems this way. With same command on the bases the two types of transistors have different switching times and a short could be possible.
@andymouse5 ай бұрын
I think it looks odd because a lot is being dealt with in software.
@PaulSteMarie5 ай бұрын
@@robegatt Both transistors are active at the same time in this arrangement. That's the odd part. If A and B are cross-connected for the second pair, i. e. A1 & B2 are connected to one side of the LEDs and A2 & B1 are connected to the other side, i think it would work ok, but you'd still have the potential for a short.
@kimchristensen21755 ай бұрын
@@PaulSteMarie I think that's the reason for the 470R resistor. Just incase the chip loses it's mind and turns all the transistors on at once. The 470R will limit the brief surge current.
@TymexComputing5 ай бұрын
Gloriously pleasingly trashu
@frankowalker46625 ай бұрын
That's pretty cool.
@JM_Tushe6 ай бұрын
Dangerous? Dangerous my 12VDC homemade H-bridge with a LM2596 (40VDC max) whose input was a 28 VAC 180W TRANSFORMER. To this day it hasn't busted in flames (as far as I know).
@SirBoden5 ай бұрын
Very clever
@tenminutetokyo26436 ай бұрын
Think of the disco possibilities.
@markiangooley5 ай бұрын
It’s proper disco tech, that!
@paulsengupta9715 ай бұрын
Disco inferno if some of those components get a bit hot.
@tomweickmann64144 ай бұрын
My cell phone company gives out Bluetooth speakers when you buy a phone from them. Most of the speakers have the same lighting options as your gadget. Perhaps a budget alternative would be to cannibalize an old one. I like the speakers, could care less about the disco lights.
@DISCOTECHS5 ай бұрын
OK as long as the output transistors dont short out, Then Bang !
@bigclivedotcom5 ай бұрын
Not really, since the capacitive dropper limits the current.
@phonotical6 ай бұрын
Inverse parallel led, how do you not blow up one side? Because one always had a path for current to flow? I've not seen those before
@bigclivedotcom6 ай бұрын
Each LED clamps the voltage across the unlit one to 3V max.
@phonotical6 ай бұрын
@@bigclivedotcom so it's still being actively damaged?
@TheAechBomb6 ай бұрын
@@bigclivedotcomso if one goes they both go pop?
@ralphj40126 ай бұрын
Now I have a valid excuse not to send flowers to young ladies.
@LawpickingLocksmith5 ай бұрын
What would Dan say? Super dodgy!
@tonysheerness24276 ай бұрын
Do Chinese manufacturers have Research and Development or is it Trial and error?
@bigclivedotcom6 ай бұрын
Probably both, plus stealing software and ideas from others.
@robegatt5 ай бұрын
It's called Chopped Vegetables Soup Development.
@naysmith52725 ай бұрын
They translate to the same.
@aaron_111116 ай бұрын
I wonder what caused the burned squiggle on the desk? 🙃
@tonynicholson33285 ай бұрын
I believe it was a 1600 watt squiggle maker...
@robegatt5 ай бұрын
Some kind of contraption gone rogue 😊
@Grid565 ай бұрын
It was a test of a temu heated staple gun for repairing plastic. If you search clives vids you'll find it.
@richardmellish23715 ай бұрын
Only a "bit" dangerous? With no isolation between the mains and the LED wiring and sockets, I wouldn't touch it with the proverbial barge pole.
@esecallum5 ай бұрын
what is called ? how much and can you get it on ebay?
@bigclivedotcom5 ай бұрын
AliExpress, and hard to find.
@ShadowzGSD5 ай бұрын
how old is that? looks like a circuit board from 40 years ago.
@SianaGearz5 ай бұрын
There's nothing particularly old looking here, i mean this is how cheapest stuff was constructed 25 years ago and once you start cranking out stuff by the tonnes, it can be counter productive to upgrade. It could have been manufactured last month. Except deep brown PCB colour, that's a little unusual. Paper phenolic PCBs lean brownish, but usually not quite as much. Unclean raw ingredients or copious BFR to make it less likely to catch fire, who knows. At some point in the last 20 years, several of the BFRs were phased out due to potential environmental risks and whatnot.
@hugolandheer70085 ай бұрын
I see 4 transistors on the board... Could you coinnect another set of leds?
@bigclivedotcom5 ай бұрын
I only showed half of the H-bridge in the schematic. All the transistors are needed for a single string.
@hugolandheer70085 ай бұрын
@@bigclivedotcom Would have been interesting too. For me, not beeing an electronics expert.
@smalcolmbrown6 ай бұрын
Thanks :)
@umbrellacorp.6 ай бұрын
That's why my wife throw away these lights after use. They always spark and catches fire after a while. Cheap lights never last after a Christmas season.🎄
@naysmith52725 ай бұрын
Your Christmas’s sound fun
@cbs17105 ай бұрын
No "one moment please"?! I feel cheated.
@jadenhuibregtse5015 ай бұрын
Is it too common to apply resistors to the grounding phase?
@bigclivedotcom5 ай бұрын
There's no actual ground connection in this circuit.
@edyeduard43685 ай бұрын
I think this circuit it's kinda of old, what the data code on the capacitor? Now this circuit it's much simpler and the microcontroler it's a blob!
@chrismoser34816 ай бұрын
642 views in 14 minutes? That pretty good
@TheEmbeddedHobbyist6 ай бұрын
Can I just say with a circuit like this a fool playing around with it can easily be stopped just like their heartbeat.
@fredflintstone15 ай бұрын
your just a cynic 🙂
@TheEmbeddedHobbyist5 ай бұрын
@@fredflintstone1 I've just got BS EN 61010 ingrained in my head. Can't seem to unlearn it due to old age I expect.
@fredflintstone15 ай бұрын
@@TheEmbeddedHobbyist I have BS5839 in head 🙂
@TheEmbeddedHobbyist5 ай бұрын
@@fredflintstone1 I try and avoid thinking about BS EN 60601 medical safety standard, like 61010 but with spiked balls. Also all the avionics standards and Def std's are also not to be thought of at all these days. I work to Teh Def 001 now days, if I like it it's OK 🙂