Experiment: Waterproof Ultrasonic Transducer JSN-SR04T-2.0

[@cristian-bull]

I am working on concept test for a bigger project, I need to measure several underwater distances and you good lady just prevented me from screwing everything up xD

[@Mr_Pr3sid3nt]

This is really good. I wanted a sensor that will be useful in extremely humid conditions and the HC-SR04 wasn't going to last very long there. This video has been helpful.

[@agermangineer]

Rats... my IT friend and I are thinking about combining our professional skills to design a more sophisticated ROV project in regards to my present „Touch muh hull“ design. Sonar would have been nice but watching this leaves us just as humbled; understanding that useful sonar will be much more cost intensive. But thank you so much for that fine video and for sharing your research! I will keep an eye out for further updates!!! 😀

[@shndsgsg3736]

The minimum range of this sensor in water should be around 80 cm at least ( since speed of sound is around 4 times bigger in water). 3 feet is around 90 cm and perhaps it was 10 cm deep into the water. You could make the same experiment in 4, 5 or 6 feet depth and see what happens.

[@KetansaCreatesArt]

I saw this in a shop and I wanted to build a safe distance sensor for vehicle, with an onboard sound or LED levels indicator, so I came over to check tutorials here. Then seeing your video, I find that I am trying to utilize this module for just a mere purpose compared to what it is capable of.

[@ChristianRodriguez-tv4ct]

"TL;DR: it doesn't work underwater"...I still watched the video. Your website is cool.

[@paulmeynell8866]

It's nice to see when things don't work, because that is real learning. Although the v2 sensor is far less accurate that the version 1 board in air.

[@006aranganathan8]

VERY VERY THANKS TO YOU SISTER FOR YOUR HONESTY FOR SHARING THIS MUCH INFORMATION AND TAKING EFFORT TO MAKE ME UNDERSTAND LOVE❤️ FROM INDIA🇮🇳

[@DanielVitiello]

It works well outside the water and it measures the distance between the sensor and the water. So that it works within the water and it measures the depth you must modify the frequency of the sensor since the water in denser than the air.

[@axle.student]

Hi, thanks for the video :) This is great stuff. I am about to undertake some budget experiments in underwater communication based upon piezo transducers at 18kHz and 40Khz. Finding any information on marine transducers and depth sounders is quite difficult. Interesting enough is that piezo based hydrophones appear to work very well. I really think this may be a coding/driver issue rather than the transducer as I have seen others create/or discussing small sounders like this in some Arduino forums. Something I have discovered from initial research is that temperature plays a significant roll in speed of sound calculations for under water, and that some amount of discrimination/filters may be required as well as dealing with side echo . Also note that piezo transducers are natively AC sine wave, and Arduino is DC square (They will work, but are very noisy sound, not clean pings) so maybe look at a DAC to transducer, and ADC for the return (If you aren't already). I have subscribed and bookmarked your channel, so will post my findings back to you when I get to it (If you are still interested :)) Thanks again Axle

[@albinjanzen]

Hi Axle! I'm aswell about to do the same thing! Would you like to discuss this and maby learn from each other?

[@axle.student]

@@albinjanzen Hi, I would be happy to exchange ideas. I must admit that I am still setting up my electronics bench and am still a few weeks off making a start. I will post some info up on my KZbin and Google sites in the coming weeks =) This will include some study and info on underwater transducers and hydrophones =)

[@albinjanzen]

@@axle.student This is my trash mail, send me your contact info and I will give you mine! [e-mail]

[@Deathcreator666]

Excellent video.A bit late to the party but this is NOT an underwater sensor PROBABLY. I did similar experiments all of which failed miserably. What I THINK the culprit is: Bubbles forming in front of the sensor probe. Some notes taken from the comments. 1. Minimum range in water is 80 cm (water speed= 4 * air speed) 2. Maybe energy is not enough for sound wave produced to travel in water(too much attenuation?). 3. Maybe different(higher) carrier frequency is needed for a sensor like this to work in water. Extra note: Yes this sensor will most likely work in humid environments (outside water). HOWEVER, depending on the conditions, humidity and/or temperature might be needed to be taken into account to get accurate measurements. Good luck everyone.

[@chemeng-industrialacademy]

I get a lot of help from your video, realy thanks .you have demonstrated in a good way and save from misconception about this sensor.

[@wileecoyoti]

Documentation of your process was very useful! I was curious about the durability and waterproof-ness of the sensor and yours seemed to have survived full immersion, even in some funky water. I /suspect/ it didn't actually /function/ underwater are for two reasons: 1 being the time of return, if minimum bounce time is 20-25cm in air, it would be 80-110cm in water. But then part 2 becomes a problem: ringing enough energy to sense in to water is harder, maybe 80+cm is just too much for it? Either way I'm going to pick one of those up and experiment! Thanks!

[@asifsayyed4791]

hey man have you tried it i am just curious i have taken this as a project

[@MrWygandas]

Hey! Cool video :) I bought this too and thought I'll use it as underwater echo-sonar... After I've got it, touched it and watched your video it's clear that this sensor is for car parking system lol :D It even looks the same. And the thing is for waterproof - rain. Simple as that :)

[@aliasfen]

hello,your mistake is that you are considering the tranducer as the receiver,but it is not,the receiver is on the board and if there is no something betewen them the board is measuring properly.I use the same device on the bait boat and it is measuring fine

[@muslimwarlord]

the speed of sound depends on its medium. The speed of sound in air is not the same as in the water. In air, the speed of sound is 343m/s while in water the speed of sound is 1480m/s. maybe you can change these value in your code..

[@asrulyanuar101]

Thanks for sharing the experiment

[@johnrobinson1950]

HI Becky I have just been playing around with board AJ-SR04M which i think is the same as JSN-SR04T-2.0 i have got this to work under water just needed to fit one componant on the board that way you can switch between sound in air or looking into the water won't to use it for sonar for a 12ft submarine i have got have a look on youtube and type in videos of 12ft Gato submarine made this 30 years ago. Have just finished doing lidar radar for it and it will transmit back to bankside and show on laptop what the sub is looking at All the best Subjohn in uk

[@ric7702]

Thanks Becky Marshall for that very complete testing on the sensor, I own one of that one too I am same dissapointed as well, It's everything but accurate.

[@shreybhardwaj3871]

Ma'am I am working on pool skimmer. I have made a prototype of pool skimmer but I m not able to make it automatic. I want it to move and detect dirt,leaves,floating solid waste in pool and work accordingly with the help of sensors. I m from India and in area I live have very limited resources for knowledge relating to such projects. It will be very kind of you if can help me out. With regards.

[@ianhu943]

Hi Becky, awesome video you have been uploaded. May I ask you a question about how can I make the sonar to be a underwater tracking?

[@bsuryasaradhi6816]

I believe what went wrong is, The sensors chip should have a comparator which was configured to the voltage recieving from the sensor when operated in air, I believe a more good experiment to conduct would be to make a reciever with another one of those and probe it using a scope

[@firstsurvival1316]

I wonder if you understand the impact you're having on people like me.😂 I'd nominate you for the Nobel Peace Prize for the chaos you have prevented by actually DEMONSTRATING not only the Wins, but the Failures!!!

[@robocraze5552]

Nicee .. You did do some nice and rigorous tests .. Love the efforts you put in !! Do you know if there is any waterproof sensor which has less than 20cm distance? (according to 0:43)

[@BeckyMarshallDesign]

I did not find one-- I believe that would be a much more expensive sensor.

[@paulmeynell8866]

The 20cm comes from the fact it is a single sensor(. Speaker) used for transmit , then for receive ( the speed you can switch between uses is the limiting factor)

[@Unstoppableankit]

DYP-A02YY has that feature, but it's costly.

[@DonsfirstYou]

Liked the determination.

[@BeckyMarshallDesign]

lol, it was tragic.

[@sergioandressuarezvelez3993]

Awesome video, thanks for sharing your tests👏👏

[@enriquegutierrez1230]

You saved me a lot of time and some money, thank you!

[@nickcassidy2760]

I am working on converting the depth into sound for a music performance. So moving the sensor around a tank or pond outside the building, allowing it to find the distance then somehow convert it to sound.

[@TheTurmanDreams]

Do find some sensor that worked underwater?

[@Rybakdv]

Hello! Tell me, please, at what maximum depth under water does this sensor take measurements?

[@ArunMPEdison]

It's an awesome video to watch, you took us through a whole journey. I have also have recently experimented with the water proof and the other one. I feel the focus at which it emits the ultra sonic sensors are not straight. But it worked for me to find the level of the liquid. Is this sensor sufficient for liquid level monitoring?

[@sadakah3855]

good work becky ...I'm trying to run this transducer on Labview but without any success. Any comments/remarks are welcome

[@BeckyMarshallDesign]

Ahmed, all of the code, and the diagram for the hardware, is on my website! www.beckymarshall.com/depthSensor.html

[@danielberger7763]

A thorough investigation, great job!

[@Taran72]

Thank you for making the video...I saw it on Amazon but wasn't sure what it was for. :)

[@dionseptianpratamaputra6631]

So the point is whether the JSN-SR04T sensor is more accurate than the ultrasonic HCR-04?

[@hkfnchsmh]

HI, did you realize that 20 cm minimum range in air means 5x20 cm minimum in water ?

[@kamrannt]

But ut can read under water too..if the frequency is higher specifically calculated frequency with the nature of water.

[@muhammadnaufal5766]

hey nice video, i want to use this sensor for sewer height measurement because my area often get flooded on rainy season it is a nice thing that this sensor is waterproof so don't have to worry it will broke.

[@vouvi1]

Thanks for tying it! It is very helpful

[@mikebalbes6631]

Would it sense objects as small as 1 mm?

[@freddiekrueger589]

Hi there sunshine. HAve you found module for underwater sonar????

[@furkan2724]

ı need to working ultrasonic sensor under water. someone help to me on this ?

[@grindel80]

Good work, thumbs UP!

[@Laimagination]

😂😂😂oh the pains of experimenting. Thanks for sharing

[@billglass5160]

Thanks for the information and the video. I'm looking for an HC-SR04 equivalent ultrasound distance sensor, but water-resistant. It has to detect 20cm

[@bioloco4748]

Iba a comprar un sensor ultrasonico igual para un proyecto menos mal mire tu video , thanks a lot for this video ,.

[@almazul-fpv]

Hi! Great vídeo and experiments, thank you for posting!

[@thomasjinu6923]

Really I love your presentation 😍...you are awesome ...

[@batuhan06tr]

Is it possible to detect objects under water with this sensor ? For between 20-30 centimeters

[@xierxu]

Make your own sensor?

[@H4dy99]

im working on a project regarding Ground Penetrating Radar (GPR). Can u give me suggestion for sensors that i need to use? thank you!

[@fgfgfgfgfghghghgh4216]

Is it possible to detect iron in concrete using the radar program?

[@JoseDiaz-et5zx]

Hi! Im from mexico and im going to use this sensor, but in a launchpad. Hopefully with your help i might succed. Thanks!

[@rockyrakeshreddy9167]

can i know which sensor is works under water

[@zombiecampos]

Nice video, tell your cat I said pspspsps

[@sergeydrobyshevskiy7359]

Very interesting, but disappointing! But, do we know the sensors, which will actually work in Water? I am trying to find these for more than a week, and what I've found - cheap chinese complete devices, or very expensive factory OEM modules....

[@sanchittakalkar9941]

good work

[@cgv3767]

thank you very much

[@lucasfelipekunz8039]

thanks for the tests !

[@Sailingon]

This is cool, going to have a play with one from a reversing sensor kit

[@tanyabauer568]

Could you please help me ,I am targeted individual ,my house has sensors in yard , direct sound coming out off them ,could you please help how I can block the sound do you have a email where I can get hold off you ,great video 🇭🇲🇭🇲🐨🌏🙏🤗💟

[@SomethingNewToDo]

Do you think an ultrasonic transducer can go through the metal of a propane tank to detect propane usage? I was thinking of attaching it firmly to the bottom of the tank and it would have to go through the metal to measure the propane.

[@BeckyMarshallDesign]

Definitely not. The sensor will only sense the metal.

[@yam6973]

Yes, definitely no way! I used for measure the gas in an tank, (a simple Prinzip) the weight, with a load cell an an HX711, this works werry well an accurate!

[@jahzabelilla2278]

Cool video

[@user-mk2hk1iw2k]

Hi guys, has anyone tested this sensor underwater? I searched a lot of information on the Internet, someone works, someone does not, I tested it does not work for me. I started research in this area, can anyone help, which sensor to take an inexpensive one, preferably from Aliexpress, so that it works under water. The purpose of my project is to measure the speed of sound underwater, in a sewer pipe with a diameter of 11 cm and a length of 1.1m, I need your help in recommending a sensor.

[@tnsocialist1257]

I haven’t found anyone using a Marine transducer salvaged from a cheap fishing with Arduino or raspberry pi.

[@BeckyMarshallDesign]

This would 100% be the way to get data underwater!

[@shreybhardwaj3871]

Great video

[@PauloRicardo-pp4ml]

I need to develop a system for swimming kids that warns the distance through a sound in the ear.

[@r-c2082]

Looking to make a project for college and low and behold I found your video

[@conradstanley1027]

Thanks, you are my kind of scientist. That's saying something!

[@jameshouten3531]

Man, I had to laugh at some points :D...beside that, very nice and helpful video, thanks!

[@silviofurtadodasilva8261]

I loved everything, I need an ultrasound to measure rocks underground

[@razidaufaa9626]

excuse me mom, can this sensor be used outdoors??

[@BeckyMarshallDesign]

Yes darling, I believe that’s its intended use

[@jamesteo324]

Nice keep up the Good Work.👏👏👏

[@BeckyMarshallDesign]

Thanks James :) :)

[@contra4044]

lol check out russian youtubers, you find the solution: your program work with the coefficient for air. Since the speed in the air is about 320m/s and in the water 1450m / s, it is enough to change this coefficient!!

[@jarcdday]

this is the way everyone should test a "not water but distance ultrasonic sensor" xD

[@bassome3000]

thank you tha was awesome!

[@snowcycle7]

You're awesome haha

[@rafaelgonzalez1647]

Thanks

[@furkan2724]

I need to working ultrasonic sensor under water. someone help to me on this ?

[@batuhanndf7719]

Furkan buldunuz mu ?

[@MicrosiMe]

That's not an underwater sensor anyways

[@tnsocialist1257]

Thank you for the great video. My friend wants me to build him a boat that he can control with his android phone able to bait fish and send back depth.

[@santiagomedina5918]

7:05 😂

[@MiguelAguirre]

plot twist

[@jalilamirza]

try this code under water #define TRIG 11 #define ECHO 12 void setup() { Serial.begin(9600); pinMode(TRIG, OUTPUT); pinMode(ECHO, INPUT_PULLUP); } void loop() { digitalWrite(TRIG,LOW); delayMicroseconds(2); digitalWrite(TRIG,HIGH); delayMicroseconds(20); digitalWrite(TRIG,LOW); int distance = pulseIn (ECHO,HIGH,26000); distance = distance/50; Serial.print("Distance "); Serial.print(distance); Serial.println("cm"); delay(1000); }

[@WouterGrimmie]

OMG :P

[@maycodes]

Thanx , but it wont do the job for me. ur cute .

[@robertmetivier5641]

volume

[@mohammad99375]

thanks