DIY Automatic Alcohol Dispenser ($3 No Arduino Needed)

Build the simplest $3 Automated Alcohol Dispenser without using Arduino. Keep your hands clean by filling it with liquid soap, hand sanitizer or with rubbing alcohol. By reducing physical contact, an automated dispenser keeps virus from spreading around in communal areas.
INSTRUCTABLE TUTORIAL:
www.instructables.com/id/DIY-...
THE DESIGN:
I've seen several Arduino automated liquid dispensers circulating the web. I find using Arduinos a bit overkill for this specific project. Arduinos are far too expensive. I figured using a simple transistor or MOSFET would do the job, which would also drastically reduce the costs. Obviously, the absence of a micro controller removes control of over spilling, but then, I did find out that using a smaller nozzle would physically limit the flow of liquid. There are several two transistor RC circuits that would solve the over spilling problem but the single transistor design works well, given that you choose the proper nozzle size.
#FIGHTCOVID19 #COVID19 #DIY #CoronaVirus
__________________
COMPLETE KIT! (E-Gizmo/ Philippine Order)
www.e-gizmo.net/oc/index.php?...
__________________
Parts & Materials:
- Proximity Sensor ($0.6 - bit.ly/3ape7I2 )
- DC Water Pump ($1.8 - bit.ly/3ayT5qJ or $3 - bit.ly/3aouip4)
- TIP32C PNP Transistor ($0.2 - bit.ly/39oAZpO )
- Aquarium Tubing
- Old Glass Jar
- Old Ballpen
- Sanitizer/ Rubbing Alcohol
__________________
Schematic Link: ( bit.ly/2UljPVM )

[@CrezymedJohn]

An example of EXCELLENT VIDEO TUTORIAL: short, to the point, clear, no BS. Keep very good work! SUBSCRIBED.

[@clemensmbao]

Agree

[@miekkb]

and like also....dont forget that

[@127rushikeshpatane8]

I agree too

[@tejasbichave6740]

The wire used here is aluminium or copper ??

[@overcooldude9211]

Agreed.

[@TheKarpinTechy]

Nice! simple and effective!winner!love the simplicity!

[@mdalibmaris5175]

Your explanation is very clear and I hope to try out this project since the components are easily available. Thanks.

[@OtisAdonisChad]

Loved the simplicity of the project. Subscribed!

[@daniellepesci]

The best minimal design so far! Great job!!!! Unlike others, I love how you didn't use an arduino to overkill this project.

[@saeed6811]

Now you can upgrade this by inserting a small perfume ball valve near the discharge port of the pump so that the fluid doesn’t go back to the tank everytime you it goes off. This will act as a gravity one way valve or a check valve. Fluid output will be smooth as sanitizer. You can find the metal 2-3mm metal balls in so many place. Bike hubs, perfume bottles etc. Nice project.

[@bryan_aka_bryab]

I just made one for my year end project, IT WORKS!!! THANK YOU SO MUCH

[@kenter89]

Great tutorial! Hoping you can teach us to make our old AC powered conventional study lamps into DC powered rechargeable lamps. More power to this channel!

[@TechBuilder]

I'll add that to my list :)

[@Thinkdifferentsagnic]

Great bro . I wish to make a project with you someday

[@TitaArlet]

Lol im not sure why im watching when the only materials i recognized were pen, nescafe bottle, and hot glue 😂 but woah that seemed simple and amazing!

[@TechBuilder]

Hahahaha! Thanks! :))

[@princendukwe1627]

😂

[@eat-myshorts]

amplify

[@dreedshegui4559]

Remember me we were in the same bench in school 😂😂

[@islandvctr]

Made my day

[@ASPIRE_80s]

Made this, thanks for sharing, a great DIY project!

[@iamarpanghosh]

You are a genius...I can't think about this without Arduino....and you did that in real life :) Amazing.

[@allsaintsmitcham1312]

Ya you !! Love the no Arduino aspect. Of course you are right. !! Well done !!

[@TechBuilder]

Thanks!!!

[@eddiemaglasang1059]

@@TechBuilder Hey!, I love your DIY project very good , nice and helpful. Could pls. a vid using this with a solar panel or a solar powered DIY contact less alcohol dispenser? hoping foe your response - willing to learn and an avid fan😊

[@gakwavudavid1394]

I'm not understanding how this works, help me out please

[@AshLynx-rr9wy]

@@eddiemaglasang1059 Please help can I use 1k 1W resistor or 1/4 W is compulsory ...please help

[@Bob_V]

That was really cool, Thank You !!!!

[@aairadhafwatulaisy7718]

I'm student of biomedical engineering.. now I'm still searching for my project and thankfully i see your video. I think i want to try your idea. Thank you very much✨✨

[@gordslater]

This is great - I made a bedside vodka dispenser using this design: Industrial pump, 25 litre vodka container and tube straight into my mouth, activated by blinking my eyelids. I tried activating it by waving my hand but after the first litre or two I couldn't even lift my arm. With the eyelind blink activation I can now get vodka as soon as I wake up. I used the leftover tubing for a catheter which neatly solves the problem of no longer being able to walk after the first 30 minutes

[@enimativd9106]

I just did this !!! man I feel like I'm now worthy for some NASA projects ;)

[@akshitaddanki3607]

I tried doing this but my motor is not turning on at all!. I have tried this many times , could you please help me out?

[@dnyaneshjalamkar4257]

@@akshitaddanki3607 first ckeck your ir sensor by just giving it dc 5v supply. Then proceed for other connections.

[@akshitaddanki3607]

Dnyanesh Jalamkar yes I have checked it and it is working absolutely fine..but my motor is not turning on :(

[@abuhasnath5666]

My motor work automatically when i connect the power. I used TIP 122NPN Transistor and 6v motor

[@dnyaneshjalamkar4257]

@@akshitaddanki3607 I made it today and it is working perfectly fine. You might have fried the transistor while soldering. Try with another transistor (attach a small heatsink to it while soldering).

[@xyrileinzencarin2793]

Hi! You're probably not gonna see this comment. But I just wanted to say that the style of your videos reminds me of the late Grant Thompson, I surely do miss his vids and it's kinda nice that I was reminded of him again. Also salutations from a fellow countrymen! Stay safe y'all P.s. love your vids!

[@kishoreysn7801]

Yes your right.

[@siroedhiekreasi]

Very briliant idea, good job brother

[@estefaniaquinteros2184]

Excelente tutorial!! Felicitaciones y gracias por compartir.. saludos desde Argentina 🇦🇷

[@FunnyFantasticFail]

The industry of automatic alcohol dispenser will hate this trick.

[@cholav9745]

True sure they will

[@alfonsovidal6142]

This invention is magnificent, I did it to automate the faucet of the washbasin.

[@hoobastanky]

yes they are charging in portugal 230 euros for 1 ...

[@MRSINGH-xb4fh]

I M FROM THE INDUSTRY AND I M LOVING IT IT WILL SAVE MORE MONEY HAHAH

[@omkr0122]

Disclaimer: DIY Automatic Alcohol Dispenser is for washing hands only. For all other purposes, visit your refrigerator for a beer!

[@WasiMaster]

Lol

[@MagicSpamDragon]

the deception was real :( i thought oh this will be neat then it just went oh

[@dr4jm]

Just a few more tweaks and my whisky dispenser is set. Next is how to calibrate for double shots.

[@SirDella]

@@dr4jm GreatScott! made a cocktail machine, but it's a lot more complicated than this

[@praveendeshmukh192]

This is a fabulous project

[@asgardodin5743]

Thanks buddy I was searching something like this for my summer project, thanks buddy.... :) Be safe

[@phinok.m.628]

Neat idea I guess... The only problem is that people are used to holding their hand under the dispenser and waiting for it to dispense it's preset amount. It isn't intuitive to have to remove your hand to stop it from dispensing, as this may lead to spilling. Since the IR sensor's output will remain high for as long as you hold your hand under it. I suspect users may hold their hand under it for quite a while until they realize it doesn't stop automatically. This would waste quite a lot of alcohol.

[@x9x9x9x9x9]

Hey I love the channel being active again. These projects are great and just in time for lockdown. I am going to be the pronunciation police here though. Isopropyl its pronounced like eye-so-pro-pull. At least in American english. If I recall you are in the philippines so I fully get not knowing this and it does not bug me but I know if I was saying a word wrong I would want someone to tell me how its pronounced.

[@TechBuilder]

Thanks! My bad, got it! Thanks for this :)

[@zeno2712]

Very simple and elegant!

[@Norsofiana]

I'm gonna try this! Thanks buddy!

[@megsman4749]

For those concerned about the wires and pump being immersed in alcohol, you can probably put the pump outside of the bottle then just insert another tube into the bottle for the source.

[@LakhanSingh-nc3ss]

Yes

[@kanna7013]

I made this but whenever I try to put the battery, it automatically starts pumping; after that it functions normally. Can you tell me what's the problem?

[@razurio2768]

using a peristaltic pump would be probably better with some alcohol tolerant tubing

[@namannitant]

Can 5v mini peristaltic motors give enough flow rate .. ??

[@namannitant]

And what will b alcohol tolerant tubing

[@drabhirambhoyar84]

I tried this . But dont know what I messed As the pump is running continuously on turning on power Also the proximity sensor I got had 4 terminal namely AO DO GND VCC Plz help

[@alexelwebman]

Nice one. I am gathering all the elements to make one. Thanks for sharing, it is inspiring and makes me want to take the same steps!

[@alexelwebman]

I actually managed to recreate this project. Really fun. Thanks for sharing!

[@arajoydavid]

I actually did this last week! Very cool though because it worked. Loved it. Thanks!

[@nblbil]

u make it and it works....... can I know that did u use the same parts and materials on the video?

[@gortnewton4765]

Nice. Can be used to dispense all kinds of things, whisky, rum, gin etc.

[@edinsanjose2856]

yes of course my friend. have a nice day

[@rajavelr8111]

super.. bro.. good idea.

[@AshLynx-rr9wy]

Please help can I use 1k 1W resistor or 1/4 W is compulsory ...please help

[@techyswami4649]

is there any other transistor we can use ? which one is easily available like pnp BC557

[@jamescook9592]

Good job. You should be proud. Keep going👍

[@mr.colbie]

You're the man Sir,keep it up👏👏👏

[@masshysteria1589]

I have a suggestion to improve the design. Connecting a capacitor and resistor to the transistor can help make a cheap timing circuit. This is good if you're only trying to dispense a small amount of liquid like rubbing alcohol on your hand. It also helps alleviate some problems when glitches on the sensor module might occur or when you point an autofocused camera to the sensor that might cause it to unintentionally go off and dispense large amounts of liquid.

[@cordcradleco.2429]

what kind of capacitor?

[@JceeB]

Can you teach us on what type of capacitor is needed? And where to put the capacitor? Because my main problem is the current is slow when you try to activate the pump(we tried it on the breadboard) so the main problem that I have is the slow flow of the current to the pump

[@edgarsdiytv5535]

Can we add a timer ic here. Timer will do pump motor to run precisely. And prevent over spilled.

[@jamesfarnarkler]

Yeah, time a shot of your favourite spirit.

[@alexstone691]

This could be made nicely using a 555 timer

[@easysteps6726]

It's fantastic...low cost automatic hand sanitizer..නියමයි...හරිම අපූරුයි..

[@dr.aniruddhapatil9418]

Super simplified bro. Thanks

[@Farmelle]

One note. Beware on the wire colour in the USB cable. Often times they don't follow standard colouring, so it's worth checking the polarity with a multimeter if you have one.

[@TechBuilder]

Agree! Although it barely happens, I've had the same enounter before. It damaged my project. I did however check it on the actual video, the clip was removed to shorten the video length.

[@wilmercb]

@@TechBuilder Can I use a IRF 520 transistor? Thanks

[@matthewsantos505]

Notif gang rise up

[@bikramsaraf4337]

This is so cool bro...thumps up for ur creativity

[@sanjuansteve]

I love it. Liked and Subscribed from México. :D

[@pixiedustin6380]

This is great! Just wondering, won't the wire inside the tubing rust eventually?

[@gurpreetdol6511]

try using stainless steel wire, they dont rust

[@TheTubejunky]

Good idea..... however I think after a bit of time the alcohol will corrode that motor (oxidizing the metal shaft) and possibly the glue/adhesive that holds it's housing together. There is also the chance of ignition of the alcohol from the small arcs those DC motors make when powered. Perhaps run this for months and see what the outcome is.

[@TechBuilder]

Thanks! I've been running this project for almost 2 years now, the older one that is. This one's just a documented remake. I had exactly the same concerns, so far so good. As for the arcs, as long as there are no oxygen or air to feed the fuel from sparks, I doubt it would ignite.

[@namannitant]

Dis does look risky , may using a brushless submersible pump or peristaltic pump is safe option ... Can a 5v peristaltic pump give such a result ??

[@alifasaurus4521]

Thank you, man. i’m gonna use this for my science exhibition, wish me luck😁

[@danielvibin6144]

me too

[@rajavelr8111]

very nice bro.. simple and easy.. congrats...

[@jaredbradley2223]

I love this DIY and I am looking to use it for a different application. Would it be possible to use this with a 3000 l/h water pump? will I need to use a traditional power outlet cable, will that melt, or will the usb be strong enough?

[@TechBuilder]

you need a relay :)) Just replace the load with a 5v relay

[@txnart-putrasatria]

@@TechBuilder hey man do you have ig ? Please help me make the diagram using 5v relay

[@theidealisticman]

Hey there. Great DIY project. I have an issue with mine. The pump is failing to pump the sanitizer all the way up the tube. The sanitizer gets stuck somewhere along the tube. Any advice on what I could do to solve this issue?

[@sanathshet6945]

what kind of pump is being used?

[@vishwanathryadav1287]

thank you very very much for your fabulous project superb man

[@dattebayo10]

Very nice cost-effective

[@SachinBhangale]

Thanks for video, just one concern, alcohol based sanitizer are extremely flammable, just one spark or heat that dc motor can cause big accident!

[@ahlamanvarlal2989]

Is that really true?

[@eeeeee132]

The performance of the sensor (IR tx + IR rx) seems to alter on the variation of light.

[@ethicalhacker1]

Use an ultrasonic hr304 sensor instead then

[@resjandonero2221]

@@ethicalhacker1 requires micro controller like arduino to work.. use e18-d80nk sensor.. works outdoors

[@nguyenyennhi5997]

Very interesting and useful. Thanks very much!

[@adityahi-tech1893]

Great.. It's simple and amazing project

[@MUSTAFA-dq4gs]

Excellent.... May Allah reward you I would like a link to buy the parts because one of the links inside the description box is not working رائع ... ..... جزاكم الله خيرا اريد روابط لشراء القطع لأن احد الروابط داخل صندوق الوصف لا يعمل

[@erwinjaudines6747]

Same invention with us. We just used Ultrasonic HC-SR04 sensor.

[@-_HerezGrishmarWienanta]

He use 100V 3A transistor but why he use only 5V dc water pump ?

[@fiqazhar3565]

Is that mean u do not need a transistor?

[@-_HerezGrishmarWienanta]

Fiq Azhar no, you need itu to be a gate for electricity. Sensor give electricity for base transistor to flow electricity form emitter to collector to pump. It’s be a swticher

[@fiqazhar3565]

So, can use which transistor?

[@-_HerezGrishmarWienanta]

Erwin Jaudines already said, pnp 32 transistor. Check in his description

[@princendukwe1627]

Bro i love all your tutorials😉 self taught.

[@TechBuilder]

Thanks man!

[@sciencetube5452]

*COVID 19 hate this video, But we love TechBuilder*

[@Mahendrasingh-ol5qs]

Could you make some unique. Projects like just you maded that BB8 from star wars? 😃😃

[@TechBuilder]

I have some big new unique projs. Stay tuned! :)

[@amitsinha657]

Motor aur IR sensor donon Ek Sath work kar raha hai uske liye kya karna padega bhai batao yaar

[@saitouyuuji2290]

This would gonna big fenomenal in Russia.

[@adamsmith2719]

...gonna be big......:-) and I agree, meaning согласен :-)

[@hunny333]

what’s wrong with hand sanitizers? Though the occasional use of a hand sanitizer isn’t going to hurt you, regular use over time can cause a lot of problems: 1. DRY SKIN We told you about the dangers of alcohols in skin care in a previous post. The alcohols used in hand sanitizers include isopropyl, ethanol, and n-propanol. These are the drying alcohols we told you about. They irritate the skin, strip away it’s natural oils and acid mantle, dehydrate cells, and increase risk of contact dermatitis. 2. ACCELERATED AGING All those drying effects can lead to increased appearance of fine lines and wrinkles, as well as calluses, cracks, and flakiness. Over time, alcohols can disrupt the natural barrier function, reducing skin’s ability to protect itself, and leading to increased dehydration. 3. DAMAGED SKIN Scientific studies have shown that alcohols can actually damage skin cells. 4. ANTIBIOTIC RESISTANCE Many hand sanitizers these days are made with triclosan (more about triclosan in this post). This antibacterial has been found in animal studies to disrupt hormone function. It’s also connected to the rise of so-called “superbugs”-bacteria and viruses that can resist antibiotics. The CDC announced in 2013 that the rise of superbugs (as a result of overuse of antibiotics) was a serious threat to human health, and had caused at least 23,000 deaths that year. 5. UNKNOWN CHEMICALS Many hand sanitizers are made with chemical fragrances. Since manufacturers are not required to list fragrance ingredients on the label, you don’t know what you’re exposing yourself to. Many fragrances are irritating and have been linked to allergies and hormone disruption. 6. WEAKENED IMMUNE SYSTEM We think we’re reducing our risk of getting sick when we use hand sanitizers, but they can actually weaken the immune system. Studies have shown that ultra-clean environments-particularly early in life-can contribute to reduced immune defenses later on. 7. THEY JUST DON’T WORK AS WELL The FDA states that currently, there is no evidence that antibacterial soaps (and sanitizers) are any more effective than regular soap and warm water in helping to prevent the spread of germs. A 2000 study found that sanitizers do not significantly reduce the amount of bacteria on the hands, and may actually even increase it. Researchers added that the products strip the skin of its natural oils-and since those oils usually prevent bacteria from coming to the surface, the sanitizer can actually reduce the skin’s own defenses.

[@aishakhan4072]

kzbin.info/www/bejne/foGpe6NoetZgiMk

[@itscloveryt4691]

@@hunny333 nothing in this world is perfect, not even the healthiest veggies could have a little harm on you.

[@lightofhopeph]

Thank you Angelo for this awesome build. will spread the word to fight COVID19 👍

[@ibsblive8577]

Best project sir!!

[@edifierbass7821]

Nice much cheaper, I've also seen the first version cool now to build this No problem for me I can Diy this easy cause I know electronics but for a simple person with less or No knowledge they can't do this but they can try though; Or maybe I'll just build one or two and donate it to a Hospital thanks god bless

[@faridayasmin3882]

I can't find tip32c transistor. Can I use bc557 instead??

[@princening679]

If u use alcohol it may evaporated because nozil is open.

[@prest4tym577]

I have needed a similar set up for an invention I am designing. This is a PERFECT MATCH FOR MY DESIGN!! YAY!!!! When I hit $1M ... I'll tip u off

[@somapoker7779]

What a nice project! I am going to try this with my kids.

[@TechBuilder]

Thanks! Have fun!

[@pyrojason]

I keep looking for this "Like and Subscribe" button but I can't seem to find it anywhere! :P

[@ishigamiyu1991]

I hate how some people just love slapping an Arduino on everything

[@lisuraoi]

hahaha. You are right sir.

[@TechBuilder]

Hahahahaha, agree! This just made my day!

[@TheTubejunky]

Slaps an Arduino on an esp8266 then a Raspberry Pi 1,2 3 and 4 then a lattepanda, then a pager then a Tiger hand held game then a bucket of sand then a singularity......then boom time machine made! 🎰📠

[@an_orange8911]

Yeah seriously like they are getting it for free. Arduinos aint cheap especially for students like us

[@chetansharma6344]

@@an_orange8911 Chinese clones are $3 a piece, and they are supposed to be used for prototyping.

[@gpadepedro]

I built it successfully. Thanks man.

[@madsoncampos]

Awesome!!! it worked perfectly!! thanks a lot

[@prc8433]

Nice project. But you should not use submersible pump. It is not safe to pump alcohol by these kind of pumps. You should use dosing pumps specially made for alcohol & other volatile liquids. Rest for your electronic parts you deserve 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

[@Ziaulqamar1000]

Why put motor in alcohol?? Also possible fixed tube to input side for injection. Any issue in this please???

[@TechBuilder]

@@einherjar5311 Exactly! :) I also found out the specific pump I used has a non reactive plastic enclosure with alcohol.

[@namannitant]

@@TechBuilder - kindly suggest the motor which u have used

[@adityabiyani387]

thanks for the idea

[@electronic7979]

Excellent project

[@TechBuilder]

Thank you!

[@BigHesh81]

Is there any way to control how long the pump is activated for once the sensor detects a hand?

[@onebacon_]

In this configuration no, because the proximity sensor shuts off immediately when nothing is detected. It will run as long as something is in front of it. This could be limited to prevent abuse with a second transistor and a rc circuit which cuts the connection when the capacitor is fully loaded and resets after a short decharging period.

[@TechBuilder]

I agree with @oneBACON . You can use a two transistor circuity or perhaps use a 555 timer to add intervals, although the 555 wouldn't give you the cut you need.

[@davey2k12]

Why not use small relay and delay it with capacitor and diode

[@Jczeph317]

@@onebacon_ I understand the principle behind what you said, but could you elaborate on what type of transistor, resistor and capacitor I would get and how that would be wired together?

[@solino2002andrea]

A little bit "punk", but in the end it works great.

[@Positivity2Prosperity]

Very innovative, liked and subscribed

[@danielgarcia3895]

You are amazing bro, thanks for this video

[@user-yz8qf1ty9u]

It really releases too much alcohol each time.

[@herolive4114]

You can choice 1.5k resistor or more. I do that. kzbin.info/www/bejne/nauUnqyCidtjn80

[@GenuwineG]

Chinese lady- hurry up and buy Chinese man- I don’t want any trouble, just get out.

[@omkr0122]

What'd you say about my mama?

[@GenuwineG]

omkr 01 Chinese man- I don’t wan corona....just get out.

[@deevishnd]

tried it.. works beutifully.. thanks

[@ojas8578]

AMAZING PROJECT wow wow

[@Schjoenz]

Once again, a very cheap build. Dami ko nakita gumagawa puro arduino ang board. But this one is way cheaper and can even be compact if it has its own housing with a rechargeable battery pack..

[@haroldmamacydeasis8369]

san kaya maka bili ng censor?

[@nette3825]

@@haroldmamacydeasis8369 may nakita po ako sa shopee around 36pesos lang po

[@resjandonero2221]

lazada at shoppe kaso indoors lng yan guys.. pag may sinag ng araw kahit hindi directly from the sun bsta maliwanag.. aandar ang motor at tuloy2 ang labas ng alcohol..

[@GamingNKim]

Paps. Ano alternative transistor ang magamit dito?

[@Schjoenz]

@@GamingNKim try mo yong MJC32C na transistor.

[@kingjames-fn8ib]

Right now buying sensor and motor online is impossible. Nice try though!

[@muppetpaster]

Nope, just ordered 5 "sets"

[@erollin77]

Ordered got within 2 days

[@nivedithasuresh8378]

I tried it and the result was amassing.

[@tushardheer777]

How about using a cell battery at the end?

[@fushdrop]

U SAVED MY LIFE IN ROBOTIX CLASS THANK YOU !!

[@Harvz78]

That’s useless I can’t find anymore alcohol.

[@cybermenindia]

We have a lockdown in India cannot buy any of these .

[@tkangwei]

Okay

[@amitkamalsharma1305]

If you follow lockdown then there is no need, only simple soap will work at home

[@MadebyMickey]

thank you for this...

[@akosijelsonyt2209]

nice build

[@diablo09090909]

@techbuilder Rather than using the flow thinner at delivery end, put it at the intake end. This way the flow would be reduced without increasing force at delivery end.

[@ramdesignlabs9595]

A good application of switching function of a transisistor

[@akashbiswas5826]

Thank you. It is very easy, I will definately try it...

[@TechBuilder]

Sure! Thanks too!

[@Googleaccounty]

Great video amazing sir keep making more videos we support you

[@Siege_master35]

Thank you I made it and it’s really cool 😃

[@alandiloshan4005]

Was very helpful

[@jamesemmanuelgonzales9087]

Nice and informative. Keep it up 😊

[@deepak9111]

Excellent, good work