I wish more UA-camrs were willing to step through a schematic like this. It’s so useful for someone that doesn’t have the time or funds for an electrical engineering degree.
Isoparaffin is a petroleum-based product that gained popularity originally as a laxative. It's specifically quite low in the carbon chain length, at 13-14 carbons. If you're familiar with petrochemistry you'll notice this is just above petrol (gas) (C4-12). Indeed isoparaffin is considered a high quality fuel for certain motors. What's interesting is that these products *used* to come from crude oil distillation (fractionating column diagrams are a simple way of looking at it). But now as we adapt to the need for a circular economy, we're getting these light hydrocarbons from a lot of other sources. Tyres and other sources of rubber, old cars... lots of fun stuff. That we're all rubbing on our faces and sniffing with delight.
Longer term breathing of oil mist can cause asthma and extrinsic allergic alveolitis, something that was discovered in machine shops quite a number of years ago.
Very interesting, all that for sending nice smelling aromas into the air. The reversal of the mosfet was a clever move. Many years ago I was at Ferranti in Dalkeith, I stayed for weeks at a time in the Old Waverley Hotel. They gave me the same turret room overlooking the Burns Monument. The best part was I timed it right for the Fringe and it was a fantastic time to be in Edinburgh.
Imagine what these engineers could achieve if they directed their genius to something beneficial to the world, and not nasty allergen distribution systems.
True. I can't even walk in the cleaning products aisle of the grocery store or my nose starts running. I would definitely not want one of those air "fresheners" in my home. But they do provide almost endless material for Big Clive videos. 🙂👍
How do you know that these individuals didn’t do that? They have the engineering degrees, occupational experience and they’re in appliance design. It’s likely they would have either directly and/or indirectly worked on more conventional appliances such as a timer, microwave or coffee maker. merely one appliance designed, built and shipped to a customer that functions as intended for a good length of time in my opinion metaphorically and literally exceeds the amount of work some people may have done in their lifetime. This outweighs everything else.
@Ea-Nasir_Copper_Co Well, according to Darwin and The Theory of Evolution, its You who are the Anomaly. Your dna must go, removed from "The Pool". Or is that an inconvenient truth.?
My favorite part of this design is that clever little... bootstrapping(?) boost converter circuit? I don't even know what that would be called, but it's very cool.
I put a mechanical heat recovery system in our house. I think it's much more effective at keeping the air fresh than all these air freshening devices. It saves on heating too. But not all houses can be easily retrofitted, as the vent pipes can take up space you don't have. Still like Clive's reviews of air fresheners though.
I did not try to reverse engineer the PCB myself, but something in the schematic seems off. The SI2301 (A1SHB) is a P channel MOSFET. Sure, it can conduct in both directions when turned on, but due to the internal parasitic body diode, you would have no way to turn it off if used like shown in your schematic. EDIT: The only purpose of the MOSFET seems to be to stop the zener regulated supply from backfeeding into the battery and avoiding the voltage drop of a diode between the battery and the MCU, but NOT to disconnect the battery supply. So, the circuit makes sense, but has a different purpose.
Remarkable the amount of multidisciplinary engineering (electrical, mechanical. chemical, software) that goes into these silly contraptions. Thanks for the investigation Clive, its very interesting!
Thanks for another well presented and informative video BC. It's indeed a very good design and such an accolade to get your approval too. In fact, I shall be getting one of these as soon as I see them on the supermarket shelves. Lets hope that they continue to make the refills! On the matter of refills, I wish to point out that if one decides to make one's own, it is essential not to use hydrocarbons as a base fluid. Liquid hydrocarbons are very injurious to the lungs, and can cause both acute and chronic symptoms along with permanent lung damage.
That's surprising Clive. A little disappointing but I'm sure that they've got the necessary approval for the oil they're using. It's a reputable firm after all.
It would be nice to be able to add a little aroma to my home, but these things are deadly to birds, and I have two parrots that would be devastating to loose!
As ever, a great explanation of how the components within the circuit work.. I soooo wish I had the in depth understanding of how these things work.. I still have to figure out what went wrong with my radio.. the rj45 8pc8 cable has 2 of the pins crossed over on one side and straight through on the other, which the remote head was not happy with,. So stopped working.. I still believe there is probably protection circuits to stop the main unit getting damaged, but I can't hold the thing steady enough to get the meter in there... Anyway take it easy up in Edinburgh. I walk want to visit Scotland again in the near future,, but I like to travel further north,.. problem is, it takes hours to get from the midlands to the Highlands,
Many years back I used to experiment with smoke generators for model boats , we started with ones similar to the ones in electric model trains, They worked by heating an oil mixture, not wanting to pay the price of the fluid from the model shops we experimented and found that a mixture of Baby Oil and Varol (Paint thinner/cleaner) worked well. Some of us experimented with straight water misters. Personally I went to strait live steam.
I wonder whether the SENSE line is used to estimate the phase difference between the current going through the piezo and the voltage used to drive it? From that phase difference it is possible to find the resonant frequencies of the system (which will be slightly different for every bottle, because of small changes in the mass loading on the diaphragm).
I wonder what types of oil and "oil" one can actually use in these and would there be any "beneficial" effects of using the "right" type of oil... But a great circuit nevertheless...and very clever use of the first P-channel FET to switch to a lower power level on the MCU while in standby, but using the 12V to better drive the Piezzo circuitry. Thanks Clive - great video as always! We can't wait for you to get back to your bench... and probably you too! 🤣🤣
I can't believe all the comments acting like this little device is a big fog machine. They run for 4 to 6 seconds depending on the setting and the mist quickly dissipates. The aroma doesn't spread far or linger in the air like cigarette smoke. You probably inhale more "product" when using any aerosol spray can.
The sense resistor is used to detect the rate of change of current going through the inductor. The idea is, at magnetic saturation, the current through the inductor no longer increases with time and instead of just burning power as heat, this signals that it is time to switch the mosfet off. Self oscillating flyback drivers use exactly the same method to drive the core to magnetic saturation, this ensures maximum energy storage hence maximum output voltage without wasting energy as heat.
Good teardown video. Enjoyed watching someone else do it for a change 😀 Interesting device. I took a Glade air freshener and removed the PCB that only allowed 9,18,36 min sprays and replaced it with a ESP32C3 micro-controller a MX1508 motor controller and a 3.3 vdc regulator board. Flashed the micro-controller with ESPHome which allowed me to controller the MX-1508 motor controller to have it spray when i want it to. ESPHome allows me to integrate it with Home Assistant a home automation program and with the aid of mmWave sensor can now have it spray only when i'm in the room and when i enter a room, etc.
Great video, Clive, and an interesting circuit diagram. I can't help wondering how it would be possible to power this from 5V USB or from a regulated 12C DC supply? Maybe a 5V USB supply would be simpler? Could this circuit be the starting block for building a 'giant' version with a much larger piezo element or elements like those used in foggers?
I like that they're using clips and not adhesive. Not like this is something anyone would repair, but disassembly for recycling would be relatively easy. An especially enterprising individual could probably put in their own micro (or, because I can hear someone's keyboard, a 555) to change the behavior of the unit too. Not like Air Wick would mind selling _more_ oils... 👍
This is going to coat everything in the room with a thin layer of oil. This is something that the captain of the Exxon Valdez could only dream about....
I was looking at what's available for jFETs and MOSFETs recently and noticed that a lot of the datasheets for basic switching jFETs say that they're "drain-source interchangeable". Perhaps that's why the markings for the optional through-hole substitution for Q1 are reversed?
As always fascinating. The unsung engineers/designers who make unusual circuits out of common parts always impresses me. What I would like to add is that oil based air fresheners are dangerous for certain pets, birds especially. Something about atomized oil getting into their lungs is very bad for their health. Not sure about the science around it but bird experts do advise against oil based atomizers. There’s some evidence that cats don’t respond well to certain air freshener ingredients so it’s better to avoid with cats in the house. Dogs seem impervious but I don’t know for sure. Recently I had a stay at a motel where the built in oil based air freshener was out of control and filling the air with a sickly-to-me berry odor. No other rooms were available. The staff (one person) was unable to disable it and I was unwilling to climb to ceiling and disassemble it. Remembering the many ionizer disassemblies Big Clive has done, I got the car ionizer (rental cars can be odorous) and set it up in the room. Berry odor defeated in less than an hour and the rest of my stay!
0:17 I have to check a lot of households. Usually, people using those smelly devices also tend to burn candles. How about testing this device next to a lit candle?
Broken glass top in your 230 Volt kettle ( ? ) ...do not throw away ... retain the base and supply with 24 Volts AC / DC ( ? ) .... you now have a simple , low tech aromatherapy emitter table ( tried - n - tested ) .... for garden shed use , I recommend creosote 😝for that authentic " new fence " aroma ...... DAVE™🛑
When the batteries are low, or the bottle refill is empty the LED starts to flash to inform you that something is wrong also Clive, possibly that is why the sense circuit is also there?
Nice videos,would love to see, maybe at the end, a quick scope trace of the drive signal to the piezo, specially when you see unusual circuits like these….
I actually had a FMD chip in a set of cheap power tools i got from a cheap store. I think the FMD stands for Fremont Micro Devices which is a chip manufacturer. I think they just relabeled the chip to make it lead to nothing because the number is probably the firnware version
They likely use av highly refined paraffin like baby oil, many are sold under the name of "Isopar" followed by a type, some are are also used in certain flame projectors, Groupe F use Isopar K.
Are you sure that switch has one common and five independent contacts? The slide switches of that sort I've seen usually connect adjacent pins, for example 1+2, then 2+3, etc.
i've ruined so many of these for less than savory devices that spray out alcohol clouds into high voltage, interesting to see how they have evolved, half tempted to buy 1 just to see what frequencies it likes on a regular amplifier
Hello, I was wondering about these diffusers if it is possible to reuse the atomizer continuously to make a mist to make a kind of fog in manufacturing decorations. If so, can you tell me in a few words how to connect these atomisers please? For example, the electric pietzo "tablet" has a cable with a red and a black wire. Is it possible to connect it directly to 12v and atomise a liquid such as water?
@BigClive I know about these modules, but I actually wanted to know if THIS component in THIS device can be reused by plugging it into a 12v power supply ;o)
I don't get why they switch over the mcu power with the mosfet bit! Why not run it directly from the 3xAA cells? Why waste more power with the Zener bit?
@@bigclivedotcom I think that could've been fixed with a large multi-layer ceramic cap (10uF-47uF) for C2 and maybe also a 0.1uF in parallel. If the cells can't provide mA's to the mcu and prevent it from brown-out, how can they run the boost converter? I don't know what this mcu is, but it's not that sophisticated if it doesn't even have an internal RC oscillator and has to use a 32kHz external crystal. Granted, the RC oscillator is not that accurate and drifts with temperature and voltage, but since the mcu is not communicating with anything, precise timing is not really required.
Hi Clive! Great video as always, just a note that this background/material texture you use here is very bad for UA-cam on mobile, especially for lower resolution
I used to do a lot of work in hospitals, we used to grab a latex glove and stretch it out to smoke detector size. Never leave the room with the glove in place.
I remember being in school near the end of the school year, and some major construction was beginning. Lots of dust etc in one small area of the building. So blue nitrile gloves went up on the smoke detectors that would have been triggered. Just happened to be in the same hallway as the nurses office. Well, one or more teachers thought some kids had stolen some gloves from the nurse and were playing some end of the year prank, so they would take the gloves off the detectors. Until we had had something like three alarms in a morning... Well then, the students who were looking for an end of year prank suddenly had an idea...
I don't know if White spirit is the same in the UK as what we have in France but if it's the same thing you should definitely not breathe its fumes. Why not using a proper essential oil diffuser that only requires water if it's ultrasonic or nothing apart from the essential œil if it's using a vibrating air pompe ?
I just jump the back fence and grab some Eucalyptus leaves, or Wattle. Theres Old English Lavender in the neighbors garden, but 5 miles away. Clive, not sure if you missed something, that circuit won't work as described.
Weve tried these and justcthink they are a gimmick.. The vapourised mix of oil is heavier than air and although breifly is ejected upwards it dosent disapate above but sinks down and over time makes the surrounding area sticky...
If it's spraying out vaporised oil, don't let it ANYWHERE NEAR a projector! Fog machines (as used at raves, nightclubs, discos and similar places where beautiful young things go to get laid, drop pills and / or boogie all night) were the bane of my life when I fixed digital projectors for a living. The oil gets sucked inside, coats the optical and cooling systems and requires a major dismantling job to clean out. Things that diffuse oil must be kept WELL AWAY from projection systems or you'll be in for a VERY expensive repair job!
It DEFINITELY does not like being knocked into a sink full of really hot water, I’ll tell ya that. Edit: my bad. Mine was the first model. Perhaps this one enjoys a good spa day. I doubt it though
That doesn't have a label on it that says, "May cause cancer on lab rats in California, USA" does it? or "Not legal in California, USA, pursuant to air pollution index laws?" Just asking?
Hi Clive. I can't understand how, having so many ecig batteries, you don't teach in every case like this how to put one and a TP4056 in the battery compartment (or tell us why it's not possible). Your videos could be more practical. Your subscribers like nothing more than saving money by messing around. ☺ And another question. Looking at the liquid bottle, would it be possible to fill it with a syringe with anti-mosquito liquid and make it cheaply portable?
I still think items like these need to be used for practical jokes with unpleasant odour dispersal (other than the ones the manufacturers offer!) in places they can't be seen or gotten to... :P
@@bigclivedotcom Have you ever had a look at the Dyson stick vacs? Or a water flosser? I've got one. Very cheap on eBay. I suspect the pump they use to squirt the water out is similar to ones you've looked at in the foam pumps. Just a lot faster/stronger.
I wish more UA-camrs were willing to step through a schematic like this. It’s so useful for someone that doesn’t have the time or funds for an electrical engineering degree.
Diodes gone wild..
I really appreciated that detailed description of the circuitry. Every time I watch one of your videos, I learn a little more.
Nice to see that it apparently tunes for resonance of the piezo
I'm not sure if it actively seeks the resonant frequency or if it's set in software.
Isoparaffin is a petroleum-based product that gained popularity originally as a laxative.
It's specifically quite low in the carbon chain length, at 13-14 carbons. If you're familiar with petrochemistry you'll notice this is just above petrol (gas) (C4-12). Indeed isoparaffin is considered a high quality fuel for certain motors.
What's interesting is that these products *used* to come from crude oil distillation (fractionating column diagrams are a simple way of looking at it). But now as we adapt to the need for a circular economy, we're getting these light hydrocarbons from a lot of other sources.
Tyres and other sources of rubber, old cars... lots of fun stuff.
That we're all rubbing on our faces and sniffing with delight.
I'll just stick to huffing petrol cheers.
Longer term breathing of oil mist can cause asthma and extrinsic allergic alveolitis, something that was discovered in machine shops quite a number of years ago.
Very interesting, all that for sending nice smelling aromas into the air. The reversal of the mosfet was a clever move. Many years ago I was at Ferranti in Dalkeith, I stayed for weeks at a time in the Old Waverley Hotel. They gave me the same turret room overlooking the Burns Monument. The best part was I timed it right for the Fringe and it was a fantastic time to be in Edinburgh.
What I love about your videos is they never stink
Imagine what these engineers could achieve if they directed their genius to something beneficial to the world, and not nasty allergen distribution systems.
I don't think the benefit-to-the-world-industry is big enough to employ all geniuses.
True. I can't even walk in the cleaning products aisle of the grocery store or my nose starts running. I would definitely not want one of those air "fresheners" in my home. But they do provide almost endless material for Big Clive videos. 🙂👍
How do you know that these individuals didn’t do that? They have the engineering degrees, occupational experience and they’re in appliance design. It’s likely they would have either directly and/or indirectly worked on more conventional appliances such as a timer, microwave or coffee maker. merely one appliance designed, built and shipped to a customer that functions as intended for a good length of time in my opinion metaphorically and literally exceeds the amount of work some people may have done in their lifetime. This outweighs everything else.
@Ea-Nasir_Copper_Co
Well, according to Darwin and The Theory of Evolution, its You who are the Anomaly. Your dna must go, removed from "The Pool". Or is that an inconvenient truth.?
@robinbrowne5419
You are describing a normal response to abnormal situation, and rightly so.!✅
My favorite part of this design is that clever little... bootstrapping(?) boost converter circuit? I don't even know what that would be called, but it's very cool.
Very interesting! Probably the best Air Wick atomizer to date. Thanks for the detailed description.
I put a mechanical heat recovery system in our house. I think it's much more effective at keeping the air fresh than all these air freshening devices. It saves on heating too. But not all houses can be easily retrofitted, as the vent pipes can take up space you don't have.
Still like Clive's reviews of air fresheners though.
Very nice unit. Quite amazing to see the effort that goes into these kinds of device.
I did not try to reverse engineer the PCB myself, but something in the schematic seems off. The SI2301 (A1SHB) is a P channel MOSFET. Sure, it can conduct in both directions when turned on, but due to the internal parasitic body diode, you would have no way to turn it off if used like shown in your schematic.
EDIT: The only purpose of the MOSFET seems to be to stop the zener regulated supply from backfeeding into the battery and avoiding the voltage drop of a diode between the battery and the MCU, but NOT to disconnect the battery supply. So, the circuit makes sense, but has a different purpose.
The diode orientation is effectively blocking the 5V supply from back feeding to the batteries.
Excellent once again Clive. Thanks!!❤
How did I miss this! That enclosure would make a very neat little desk top ioniser, especially with the opportunity to have an illuminated background!
Remarkable the amount of multidisciplinary engineering (electrical, mechanical. chemical, software) that goes into these silly contraptions. Thanks for the investigation Clive, its very interesting!
That Air Wick looks like it is well made !
Thanks for another well presented and informative video BC. It's indeed a very good design and such an accolade to get your approval too. In fact, I shall be getting one of these as soon as I see them on the supermarket shelves. Lets hope that they continue to make the refills!
On the matter of refills, I wish to point out that if one decides to make one's own, it is essential not to use hydrocarbons as a base fluid. Liquid hydrocarbons are very injurious to the lungs, and can cause both acute and chronic symptoms along with permanent lung damage.
Sadly, the product does contain a hydrocarbon carrier oil. That's why I only use these occasionally as a novelty.
That's surprising Clive. A little disappointing but I'm sure that they've got the necessary approval for the oil they're using. It's a reputable firm after all.
It would be nice to be able to add a little aroma to my home, but these things are deadly to birds, and I have two parrots that would be devastating to loose!
As ever, a great explanation of how the components within the circuit work.. I soooo wish I had the in depth understanding of how these things work.. I still have to figure out what went wrong with my radio.. the rj45 8pc8 cable has 2 of the pins crossed over on one side and straight through on the other, which the remote head was not happy with,. So stopped working.. I still believe there is probably protection circuits to stop the main unit getting damaged, but I can't hold the thing steady enough to get the meter in there... Anyway take it easy up in Edinburgh. I walk want to visit Scotland again in the near future,, but I like to travel further north,.. problem is, it takes hours to get from the midlands to the Highlands,
Lots of volatile organic compunds in the indoor environment. Yum
Yup
@@bigclivedotcom hmm, wonder if flammable? 😈😜
Many years back I used to experiment with smoke generators for model boats , we started with ones similar to the ones in electric model trains, They worked by heating an oil mixture, not wanting to pay the price of the fluid from the model shops we experimented and found that a mixture of Baby Oil and Varol (Paint thinner/cleaner) worked well. Some of us experimented with straight water misters. Personally I went to strait live steam.
The 12V boost circuit is clever. It sort of feeds back into it's self to keep the micro controller powered, which then keeps the boost IC on.
I wonder whether the SENSE line is used to estimate the phase difference between the current going through the piezo and the voltage used to drive it? From that phase difference it is possible to find the resonant frequencies of the system (which will be slightly different for every bottle, because of small changes in the mass loading on the diaphragm).
I wonder what types of oil and "oil" one can actually use in these and would there be any "beneficial" effects of using the "right" type of oil...
But a great circuit nevertheless...and very clever use of the first P-channel FET to switch to a lower power level on the MCU while in standby, but using the 12V to better drive the Piezzo circuitry.
Thanks Clive - great video as always! We can't wait for you to get back to your bench... and probably you too! 🤣🤣
Maybe when you are back home we can see a vapourised oil flame test?
Search my channel for kerosene to see an atomiser doing that.
I can't believe all the comments acting like this little device is a big fog machine. They run for 4 to 6 seconds depending on the setting and the mist quickly dissipates. The aroma doesn't spread far or linger in the air like cigarette smoke. You probably inhale more "product" when using any aerosol spray can.
The sense resistor is used to detect the rate of change of current going through the inductor. The idea is, at magnetic saturation, the current through the inductor no longer increases with time and instead of just burning power as heat, this signals that it is time to switch the mosfet off. Self oscillating flyback drivers use exactly the same method to drive the core to magnetic saturation, this ensures maximum energy storage hence maximum output voltage without wasting energy as heat.
Good teardown video. Enjoyed watching someone else do it for a change 😀 Interesting device. I took a Glade air freshener and removed the PCB that only allowed 9,18,36 min sprays and replaced it with a ESP32C3 micro-controller a MX1508 motor controller and a 3.3 vdc regulator board. Flashed the micro-controller with ESPHome which allowed me to controller the MX-1508 motor controller to have it spray when i want it to. ESPHome allows me to integrate it with Home Assistant a home automation program and with the aid of mmWave sensor can now have it spray only when i'm in the room and when i enter a room, etc.
Do you think it would work well with hash oil??
No. Not unless they reduced it to a pure oil soluble chemical.
Clive REALLY loves this work accomodation.
Does that oil get deposited all over the place like nicotine? What about breathing it in? I never had an oil mist air freshener. Interesting video!
It doesn't deposit. I think it diffuses into the air.
This sort of device might be interesting in a halloween display if you filled it with typical hazer/fogger fluid.
You can get better results with a larger ultrasonic humidifier with glycerine added to the water to make a haze.
Time for a PilesofStuff Big Clive colab video!!
Thanks as always!
What does the silk-screened TEST pad do? :)
The PCB has test pads for most functions. I'd guess they are bulk tested on a jig in the factory.
Great video, Clive, and an interesting circuit diagram. I can't help wondering how it would be possible to power this from 5V USB or from a regulated 12C DC supply? Maybe a 5V USB supply would be simpler? Could this circuit be the starting block for building a 'giant' version with a much larger piezo element or elements like those used in foggers?
It could probably be powered from USB with at most a diode to nudge the voltage down if necessary.
Breathing VOCs, fun for all the family!
I like how that circuit board is from 2022.
I like that they're using clips and not adhesive. Not like this is something anyone would repair, but disassembly for recycling would be relatively easy. An especially enterprising individual could probably put in their own micro (or, because I can hear someone's keyboard, a 555) to change the behavior of the unit too. Not like Air Wick would mind selling _more_ oils... 👍
Where do you find the random electronics on your channel?
Is there any keywords you use to search?
I continually search for interesting products online and in local stores.
@@bigclivedotcomThanks for the info!
Literally the first thing I thought when I saw this on TV was “How long before Clive dismantles one?”
This is going to coat everything in the room with a thin layer of oil. This is something that the captain of the Exxon Valdez could only dream about....
I was looking at what's available for jFETs and MOSFETs recently and noticed that a lot of the datasheets for basic switching jFETs say that they're "drain-source interchangeable". Perhaps that's why the markings for the optional through-hole substitution for Q1 are reversed?
I have the guts of something like this. I'm interested in that 12v step up part from 4.5 volts but I doubt it can handle much amps.
As always fascinating. The unsung engineers/designers who make unusual circuits out of common parts always impresses me. What I would like to add is that oil based air fresheners are dangerous for certain pets, birds especially. Something about atomized oil getting into their lungs is very bad for their health. Not sure about the science around it but bird experts do advise against oil based atomizers. There’s some evidence that cats don’t respond well to certain air freshener ingredients so it’s better to avoid with cats in the house. Dogs seem impervious but I don’t know for sure.
Recently I had a stay at a motel where the built in oil based air freshener was out of control and filling the air with a sickly-to-me berry odor. No other rooms were available. The staff (one person) was unable to disable it and I was unwilling to climb to ceiling and disassemble it. Remembering the many ionizer disassemblies Big Clive has done, I got the car ionizer (rental cars can be odorous) and set it up in the room. Berry odor defeated in less than an hour and the rest of my stay!
I love waiting for. One moment please. First class though.
That you understand this blows my mind. I can make it work, (with the help of engineers).
I just don't know all the "mechanics". Very elusive to me.
0:17 I have to check a lot of households. Usually, people using those smelly devices also tend to burn candles. How about testing this device next to a lit candle?
Broken glass top in your 230 Volt kettle ( ? ) ...do not throw away ... retain the base and supply with 24 Volts AC / DC ( ? ) .... you now have a simple , low tech aromatherapy emitter table ( tried - n - tested ) .... for garden shed use , I recommend creosote 😝for that authentic " new fence " aroma ...... DAVE™🛑
should see how flammable the mist is
But can it do weed.
Kewl. Thanks Big Clive. I kind of like the aroma of a couple of these older ones yet, like you perhaps, not so thrilled about oil in the air.
I work in heavy engineering, Oil in the air is perfectly normal, Especially from Pneumatics.
@@dogwalker666 Probably not so great for our lungs though - coming from a guy that has COPD. :-D
@@amorphuc oh definitely unhealthy. Does not taste very nice either.
When the batteries are low, or the bottle refill is empty the LED starts to flash to inform you that something is wrong also Clive, possibly that is why the sense circuit is also there?
I think it may be based on time in use.
Nice videos,would love to see, maybe at the end, a quick scope trace of the drive signal to the piezo, specially when you see unusual circuits like these….
I should do that, but I'm wary of the fact it's quite a spiky high voltage.
@@bigclivedotcom A simple potential divider might work there
My grandmother (a Douglas) was from Edinburgh.
yay its here lol nice new Airwick - which is nice but pity the light couldn't really be turned off at night etc.
It runs for 8 hours and sleeps for 16.
My concern that the area around the device would be coated with oil ruining wall paint or paper, rugs or even wood.
The oil is volatile enough to completely evaporate.
Does the piezo have a hole thru it? Just wondering how the oils get to the other side and into the air.
The metal disk has micro perforations.
is the vapour flammable? if it is i am getting one and putting in an ignition circuit 😆💥
ua-cam.com/video/H16NYnHZ_s0/v-deo.html
I actually had a FMD chip in a set of cheap power tools i got from a cheap store. I think the FMD stands for Fremont Micro Devices which is a chip manufacturer. I think they just relabeled the chip to make it lead to nothing because the number is probably the firnware version
Doesn't the "incorrect" gate, source, and drain apply to the through-hole option on the top of the board?
It doesn't seem correct. The internal diode would pass current.
They likely use av highly refined paraffin like baby oil, many are sold under the name of "Isopar" followed by a type, some are are also used in certain flame projectors, Groupe F use Isopar K.
Will my room and all of its contents become coated with a film of sticky oil?
The oil is fine enough to be volatile and theoretically not settle unless used excessively.
_"Oh sticky, yes, quite a nice smell I have to say"_ 😉
Super minimi, minmi, miniature...
No outtakes or editing here, pure Clive and nothing else.
Are you sure that switch has one common and five independent contacts? The slide switches of that sort I've seen usually connect adjacent pins, for example 1+2, then 2+3, etc.
I tested and it did seem to bridge one contact to the common at a time.
i've ruined so many of these for less than savory devices that spray out alcohol clouds into high voltage, interesting to see how they have evolved, half tempted to buy 1 just to see what frequencies it likes on a regular amplifier
❤ am I going to get arc eye watching this vid Clive...?
No.
Would like a behind the scenes shot. A big bearded Scotsman sitting on his hotel room floor pulling an air freshener apart
Two unused pins on the microcontroller. Need to add hyper-maximum and spectaximum settings for even more white spirit breathing.
Hello, I was wondering about these diffusers if it is possible to reuse the atomizer continuously to make a mist to make a kind of fog in manufacturing decorations. If so, can you tell me in a few words how to connect these atomisers please? For example, the electric pietzo "tablet" has a cable with a red and a black wire. Is it possible to connect it directly to 12v and atomise a liquid such as water?
You can get atomiser modules on eBay that can be run with water for long times. Look for USB humidifier.
@BigClive I know about these modules, but I actually wanted to know if THIS component in THIS device can be reused by plugging it into a 12v power supply ;o)
Is white spirit no flammable?
Yes. As is the oil in most of these units.
Thanks :)
I don't get why they switch over the mcu power with the mosfet bit!
Why not run it directly from the 3xAA cells? Why waste more power with the Zener bit?
The cell voltage may drop or be noisy when the boost circuit and atomiser are running.
@@bigclivedotcom I think that could've been fixed with a large multi-layer ceramic cap (10uF-47uF) for C2 and maybe also a 0.1uF in parallel.
If the cells can't provide mA's to the mcu and prevent it from brown-out, how can they run the boost converter?
I don't know what this mcu is, but it's not that sophisticated if it doesn't even have an internal RC oscillator and has to use a 32kHz external crystal.
Granted, the RC oscillator is not that accurate and drifts with temperature and voltage, but since the mcu is not communicating with anything, precise timing is not really required.
Hi Clive! Great video as always, just a note that this background/material texture you use here is very bad for UA-cam on mobile, especially for lower resolution
It was temporary while I was working away from home. The alternative was dazzling reflections from the shiny desk.
@@bigclivedotcom no bother!
I used to do a lot of work in hospitals, we used to grab a latex glove and stretch it out to smoke detector size. Never leave the room with the glove in place.
I remember being in school near the end of the school year, and some major construction was beginning. Lots of dust etc in one small area of the building. So blue nitrile gloves went up on the smoke detectors that would have been triggered. Just happened to be in the same hallway as the nurses office. Well, one or more teachers thought some kids had stolen some gloves from the nurse and were playing some end of the year prank, so they would take the gloves off the detectors. Until we had had something like three alarms in a morning... Well then, the students who were looking for an end of year prank suddenly had an idea...
Yeah. You can also get little elasticated hoods for them on eBay.
Has wifi or bluetooth connectivity?
None.
They've decided to take an Apple-style approach and have it as _"Ultra-Max"_ ! Next time they might consider _"Ultra-Max Pro 2"_ !!
A VOC bot… Dr Who fans will get my drift
That vaporized oil has to go somewhere... 😆
I don't know if White spirit is the same in the UK as what we have in France but if it's the same thing you should definitely not breathe its fumes.
Why not using a proper essential oil diffuser that only requires water if it's ultrasonic or nothing apart from the essential œil if it's using a vibrating air pompe ?
Pump, not pompe, and oil, not œil, you can thank my new phone's automatic corrector for these mistakes.
U-M might mean "user-manual" as in constant on, until shut off by the user.
Big Clive sets off smoke alarm and evacuates hotel ... Followed by pa announcement that says "one moment please" 🙂
Well now I want a bag of Revels.
I just jump the back fence and grab some Eucalyptus leaves, or Wattle. Theres Old English Lavender in the neighbors garden, but 5 miles away.
Clive, not sure if you missed something, that circuit won't work as described.
Which bit? I'll have a look later.
Now put it in a transparent box, along with a sprite burner, candle or spark generator.
Weve tried these and justcthink they are a gimmick.. The vapourised mix of oil is heavier than air and although breifly is ejected upwards it dosent disapate above but sinks down and over time makes the surrounding area sticky...
U M - Un Managed, that's how I read it. Which to me would mean direct from power supply. Ultra Max does sound more awesome though!
If it's spraying out vaporised oil, don't let it ANYWHERE NEAR a projector! Fog machines (as used at raves, nightclubs, discos and similar places where beautiful young things go to get laid, drop pills and / or boogie all night) were the bane of my life when I fixed digital projectors for a living. The oil gets sucked inside, coats the optical and cooling systems and requires a major dismantling job to clean out. Things that diffuse oil must be kept WELL AWAY from projection systems or you'll be in for a VERY expensive repair job!
last thing I am gonna trust is something that spray a nice smelling mist from some multinational corp...
They are very concerned about my health vs 💰
Listen.... wish my mum gave me a detailed instruction with schematic after assembly on the production line
It DEFINITELY does not like being knocked into a sink full of really hot water, I’ll tell ya that.
Edit: my bad. Mine was the first model. Perhaps this one enjoys a good spa day. I doubt it though
That doesn't have a label on it that says,
"May cause cancer on lab rats in California, USA" does it? or
"Not legal in California, USA, pursuant to air pollution index laws?"
Just asking?
I don't have the packaging, but I wonder if they even sell them there.
We asthmatics avoid polluting the air for obvious reasons. We can be thought of as the coalminers canary for everyone else.
Hi Clive. I can't understand how, having so many ecig batteries, you don't teach in every case like this how to put one and a TP4056 in the battery compartment (or tell us why it's not possible). Your videos could be more practical. Your subscribers like nothing more than saving money by messing around. ☺
And another question. Looking at the liquid bottle, would it be possible to fill it with a syringe with anti-mosquito liquid and make it cheaply portable?
In India they use vaporisers with transfluthrin in kerosene. So it might work in one of these.
Smelly Home Devices are a MUST! 🤗😊
I still think items like these need to be used for practical jokes with unpleasant odour dispersal (other than the ones the manufacturers offer!) in places they can't be seen or gotten to... :P
No wonder you never sleep, that'll be the white spirit version.
That orange looks like it's spraying toxic nitrous oxide
Can you tell the invention I made after doing these videos. They share a common theme.
Is this how you herd your cats?
You are so knowledgeable. You make me feel stupid. That is OK because it means I still have lots to learn! 😄🥰😍🤩
We never stop learning.
@@bigclivedotcom Have you ever had a look at the Dyson stick vacs? Or a water flosser? I've got one. Very cheap on eBay. I suspect the pump they use to squirt the water out is similar to ones you've looked at in the foam pumps. Just a lot faster/stronger.