Homemade ultrasonic distance sensor + theory
ฝัง
- เผยแพร่เมื่อ 28 ก.ค. 2018
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I show you with more details how the ultrasonic distance sensor works. Then, using that theory, we create our own module, we amplify and send a 40KHz pulse, we receive the bounced wave, amplify it and then create the code. I hope that you will learn something new with this project.
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LINKS
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Tutorial website: www.electronoobs.com/eng_ardui...
Part list: www.electronoobs.com/eng_ardui...
Schematic: www.electronoobs.com/eng_ardui...
Code: www.electronoobs.com/eng_ardui...
LCD test code for second Arduino: www.electronoobs.com/eng_ardui...
EXTRA
SR04 schematic: lh3.googleusercontent.com/-mn...
Oscilloscope view: www.electronoobs.com/images/Ar...
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Great project and well explained. As a former teacher who painstakingly took time to develop material to explain things in a clear and concise manner , you rock!
You always amaze me with your projects. I have did some programming in the past and always found it difficult, but you make it look like a piece of cake. All you projects are just fantastic especially the Rc Radio Transmitter and receiver. I hope i could support you on patreon in near future.
As always great project by Electronoobs.......👍👍👍
What a great video! I'll use this as reference for my college assignment, thankyou so much
Hey man! Love your videos alot..
Thanks and keep up the good work .
Very good implementation! Thanks!
Is it possible to swap the transducers? I mean, can one transducer act as transmitter and receiver?
Hi, Great video.
I tried to use HC-SR04 Ultrasonic sensor for my water tank level monitor. But during rainy season the transducers of the module gets wet and started to malfunction. So, I purchased sealed waterproof ultrasonic transducer pair and put it into the HC-SR04 module by replacing the existing transducers on the module, but it doesn't work, I tried it with new HC-SR04 module and it also doesn't work. It is measuring the distance of 0 always.
Do you have any idea on building an driver for different ultrasonic transducers?
Also is there any other ways to measure the water level without contact?
Really great work, dude! 😊
Thank you for the videos, one thing I'm starting to love from you is that you first explain how it works with a simple circuit and then included it on the complex one. I think is a good thing to do since last time I did a complex one it did not work and I had to test each component one by one to see who is the thing that is not making the whole system work. On the other hand on this video. Wouldn't it be more cheap just to desolder a module to get the speakers instead of buying ones?
Excellent video. Just one question. Have you tried using the 16mm waterproof ultrasonic transducers in this homemade version?
Nice video , very easy to understand 👌 Thanks 😉
Thanks for the explanation, what do you think is limiting it to 1.5 m? The cheap commercial ones all go past 4m...
Great video man! 🙂
Question: how do you program the smd version of the atmega IC? (The one in your custom pcb.)
hariharan S.J using an FTDI module.
*Your videos Rock!!!! Both in content and presentation. You really deserves 1 million subs. Best of luck.*
brother can please u explain me duration between 3:24 to 5:15
i did not understand anything
Thanks for this. It was very helpful.
Hey Electronoobs, dogs can still hear this sensor, so it can possibly annoy them. Congrats for the Incredible, amazingly instructive video!
First, I enjoy your accent and your videos are well-produced. Second, I just want to use the ultrasonic transducer to play an ultrasonic sound. Can I do this by connecting it directly to the Arduino outputs, or would I need some components in between?
Nice project I wetting for next video.
Great video! Excuse me ¿The amplifier is the LM234 or the 324?
Such a great project! Appriciate the theory explanation! Would be interesting to see if this can be used for an ultrasonic flow sensor?
Nice work, Ive, used murata transducers, transmitter made an inductive flyback with a neon in parallel with the sensor, gives the ceramic a nice sharp short kick. much easier to see multiple reflections.
I always learn something new
Keep up the great work
is there any way to increase the distance range this sensor can measure or developing sensors with that facility?
Nice video!
Sir firstly great video. Thanks for doing such Projects and helping us enhance our knowledge through your channel.
Anyways, I am trying to implemented the home made sensor as in the schematic diagram but after all the connections are done the Arduino Serial monitor is not displaying proper values, the distance reads as 0 all the time and one random value pops up out of the blue and again the reading goes back to zero.
Can someone explain what might be causing this issue Please.
Good explanation. Keep up.
Very interesting video, I tried it but the recieving circuit resistor potentiometer calibration failed with me , please suggest fixed value to start with them
Have you tried to make sonar with only one piezo, like MaxSonar EZ0? I tried to do that 5 years ago, but faced with big Q-factor of piezosensor, so oscillations in sensor continue even when reflected sound return to it. Take a look to it's schematic - it's public, but firmware is not.
Hi Sir.
Is it possible to plot the shape of the object by using ultrasonic sensor and arduino?
Great project
Do you perhaps have the simulation using proteus for this project?
Hello, i've tried your code and see the output using oscilloscope. Why it doesnt show the square wave?
Hello Electronoobs! Great video, I had a question though. At 2:10 you connect your oscilloscope to the transmitter and receiver of the ultrasonic sensor so you can see the waveforms for the transmitted and received signal. What are the exact connections you made so you could see these waveforms? I’m doing a similar project where I need to get the waveforms of the transmitted and received signals of an ultrasonic sensor, and I don’t have a microphone that can read ultrasonic frequencies so I wanted to use this method. Thank you for your help!!
Please
I have this question too. I've used the oscilloscope but the output isn't square wave
Nice printer as always.
Can you use a single sensor for transmit and receive?
Their exist SoC solutions that can do this job using a single sensor
Hi, can you please use this for anti crash system for drone with apm
1:28 What video editor are you using to do that floating text overlay layer? That is a really cool video effect. I know my crappy main computer can't handle that kind of processing as it has half the RAM as my phone (sad), but if I find my long lost rich uncle who died and left me a fortune I'd like to be able to play with that effect your using here.
I've done all of my videos on a phone using apps like Sketch (like MS paint) and the $5 version of the Power Director app. It works well enough to make small stuff using a Samsung Galaxy S3, S5, or S7. It's really pushing the limits of a phone though. I have to edit 3-5 min blocks in detail with no music, compile them, then stitch the blocks together into a final complete video. If a block has too much detail like a bunch of images and overlay text or is too long it overloads the cpu/ram and crashes.
What kind of computer hardware are you using to create these?
-Jake
Upcycle Electronics I'm using after effects. You'll need a lot of ram and good graphics. Keep up!
Hey one more thing, as a suggestion to think about. When creating an example like this with code, you might want to create a version without the delay function.
I'm I've been building one of my first really complicated code based projects on an Arduino over the last 2 weeks. I've found lots of examples of different parts of the project I am trying to put together, but most of them become almost totally useless when I try to integrate them into what I'm doing because of things like the delay function.
It's just a suggestion, and something to think about. If you really want to help people learn to do this stuff, they need to be able to build upon what you teach them.
My current project uses a rotary encoder with a button, and functions built for short press, long press, and double click, along with an acceleration function for the rotary encoder. I'm trying to run several LED strips with PWM and using an LCD for a settings menu, and room temperature/light temperature monitoring//general clock. All of those are rather basic code elements for an Arduino project, but they are rather difficult to combine when they use delay instead of a flag routine. So far I've grabbed a few examples and spend ages figuring out every line of code then rewriting something from scratch a few times before I have something useful.
Even if you just added a few comments about core principals or elements that would help someone adapt the code/process it could help someone like me tremendously.
Oh and Sorry GS snubbed the general community of other smaller TH-cam'rs like yourself. Your working just as hard if not harder than him at this and trying to make a career out of this. I respect that. I wish I could do that. There's certainly enough room for everyone. It's ashame more people don't try to build a community here on YT. We don't get to interact with very many people with these kinds of interests in real life. Why waste the opportunity here? :)
-Jake
I used to do video in 2001 with a computer I picked out of a dumpster. Athlon 700 and 256MB RAM, and Ulead Pro on Windows 98. Also did some effects in Blender like took a photo, painted a depth map in Photoshop 6LE that came with a Canon scanner or camera, made a mesh and offset it with a depth map, animated a movement inwards. I'm sure of your computer is newer than 10 years, you can find something that works.
As to interrupt based Arduino with disambiguation, maybe I can lend a hand?
And I'm out of the loop, what did GS do?
Siana Gearz
GS just had the opportunity to mention other CC's in his last upload and didn't mention anyone smaller than himself.
I can guarantee you that anyone making quality YT content is both passionate about what they are creating content about and is a bit of a photography nerd too. I imagine most CC's also watch a lot of YT in general. I know several CC's extra account names, and know several that just use one account like I do. Everyone that is really passionate about something, is going to explore what other people are doing within their area of interest. It's easy to highlight and talk about others that have a larger following than yourself. When a person fails to help or take a moment to spotlight others that are walking in their own footsteps, in my opinion, that's reflective of their own insecurities. It isn't helping to build a real community by snubbing others. An open and friendly community will grow a larger potential audienc, will draw more people into the hobby, and onto this platform. It also gives everyone the chance to build upon each other's creativity and innovations.
....but that's just how I see it.
I have no dog in that fight. Personally, I will upload something I find useful and think others might find useful too, but so far, I'm just not in the right physical condition with my disability (messed up back from battling with cars on a race bicycle). I don't really care to entertain people. I do dumb things like upload video titles and descriptions in 14 languages, don't talk in videos, and try not to use much English text because I'm curious about how search engine optimization works with these things.
As to my code. I think I need to sort this one out as a learning experience. I just got this project all laid out and organized into blocks. I'm afraid to share it at this point, as it probably wouldn't make any sense to anyone but me (and sometimes not even me). I tend to be an intuitive thinker which unfortunately means I'm not very conventional when I get started on something like this. I appreciate the offer though ;)
I also had to put the code part on hold to spend a couple of days working on the hardware stuff while I feel up to it.
The main challenge I had was tring to integrate a nice LCD menu example from the YT channel EEEnthusiast with a rotary encoder example from a library called ClickEncoder. I liked the idea of different button functions as they were used but I was having trouble getting everything to work in the layers of a complex menu. I think my main problem was a lack of overall organization though. We'll see... now that I have everything broken up in blocks to code, it should make more sense and I won't get too carried away ;)
My laptop... it's ancient junk. I got it for $100 4 years ago on eBay. It only has 2 gb of RAM when my phone has 4bg. The main reason I do stuff on a phone though is because I can do stuff on a phone all day long while stuck in bed laying flat. I would need a $10k medical type zero gravity station to work on a computer more than a few broken up hours a day. I just can't sit up or stand for very long before I hit a pain threshold that makes me pretty much braindead.
-Jake
Hi i tried this circuit on bare board but transmitter part is generating variable frequency pulse not generate a proper 40khz pulse 2nd things my receiver do not receive signal so the output distance show 0. I think my Tx and Rx distance is not proper because i am using bare board so please give me a suggestion how i can make ultra sonic sensor module?
Muy instructivo, gracias
can we use such way to build a sensor that can mesure ultrasonic speed in diffirent medieum?
Nice to know the theory behind it, but i think in a DIY or BUY dilemma i will stick with the BUY option.🙂 Well made video btw.
It will be nice if you add the ultrasound module under the Arduino-based drone project, in order to improve the landing.
Videos muito bom como sempre.
is it possible to me made using sr04t sensor as i need water proofing, i tired but can't get it working
Do you have the code that you use to test the commercial unit
Useful video
Hello
can you help me?
I need to reduce the 40khz ultrasonic sensor to 22khz ...
How can I do this?
pretty cool!!! thanks
Depending on the application, I strongly advice implementing cross correlation and filters to ensure that you only pick up the intended signal. Some problems you may run into - The dead zone of the transducer and the spacing and direction of the transducers, so the receiver doesn't sporadically pick up the transmitted signal =)
But the two signals have a different offset, you can't just cross correlate them. Luckily both transducer and receiver have a strong 40k resonance acting like a filter so that does most of the job.
very good stuff
How much harder would it be with a single transducer for tx and rx....?
What is the resolution of this circuit ?
Hi, great video, well presented.
But shouldn't you be measuring from the start of the transmitted pulses to the start of the echo pulses?
In the video at 2:44 you are measuring the end of the transmitted pulses and the start of the echo pulses.
Tom George I thought the same. But we send 8 cycles for a reason. If you look at the bounced wave without amplification, the one that is rounded, you can see the maximum amplitude after 8 cycles and after amplification, due to the set threshold, that will be the first square pulse. At least that's what I've seen with the commercial one so I've done the same. Keep up!
Time to dissasemble my ultrasonic cleaner. Clear explanation
Hi, I cannot get this project to work. Is there anyway you can help me?
Could you do this exact same thing but with two Arduinos so you can have a separate transmitter and receiver? The idea would be for them to communicate with one another.
Nice video sir
I hope Q N A VIDEO COMES SOON.
good job man, keep it up. could you please touch on IOT(internet of things) and home automations controlled by Arduino.
great video
one question, how waterproof Ultrasonic sensor works, because it have only one Ultrasonic speaker
Cool! Since you are using Arduino as the driver of the sensor, why not make it output the measured distance over i2c? Thus it would be a complete sensor with i2c interface
Hi..
Iam just confused
So please can u send me a cicuit diagram to build ultrasonic sensor with list of components
Great project ! However, I still have 2 unanswered questions:
- why is one transducer marked with T and the other with R, I mean how are they different from each other ?
- the advertised frequency is 40KHz. But the microcontroller is reponsible for making the oscillations. So what if you change the applied frequency ? Is 40KHz just the optimal resonance frequency at which you get the most aplitude/ output power ?
I m ur big fan
the speed of sound is not constant
universally it is 331 or average
but due to cold or hot temperatures the sensor reading might give faulty data
so it is best to improve the sensor by adding a temperature sensor and calculate the speed of sound every time it tries to send a sound wave
so it will send a highly accurate data
Can you try using a single transducer to do both send and receive? It can help make the sensing assembly much smaller when needed to be used in spots that you need to keep clear. There really isn't much difference between sending and receiving transducers, only the efficiency or signal to noise may be reduced somewhat.
Great idea!
weldone bro
can i use 3.3 V instead of 5V?
Cool but its not a cost effective way to make an ultrasonic module but still its quite useful to explain somebody the basics of how it works. Keep it up
Please make tutorials on gas sensor
Which sensor module is good for measuring the distance excluding ultrasonic module?
IR distance sensor!
Electronoobs thanx bro
after long research we have a new technology to send data over dc lines so no need to connect 4 wires of ultrasonic module just use same dc line between module and MCU to supply module & get data
Can we use only Arduino UNO for entire work?
can you make portable ultrasonic cleaner??
Why did you use 100nF capacitors for MAX232? The datasheet shows that 1uF (1000nF) needs to be used.
Unsubscribed!
Excellent video with detailed comment. However... it's a little hard to determine the size of the components because of the missing banana.... ;-)
How to make Detecting concealed PVC water pipe with ultrasonic sensor?? Please give a video... humble request..
Speed of sound is not constant, it fluctuates depending on air temperature.
Can you make a big ultrasonic sensor
please!
Wow do best
have you checked the frequency range of those TX and RX buds?... i have a project in mind, and yes, the TX or RX cost way more than a bounch of RS04 modules, so worth desoldering (this is a classic in china marketing btw, kinda silly)
LM324 actually... not LM234 :)
please please
explain lm567
tone decoder
Want to help my workshop: www.patreon.com/ELECTRONOOBS
Thank you so much!
8:00 Why don't you use a loop? Also, your code is a bit messy. Fortunately, there's an easy solution for that: press Ctrl+T or ⌘T in the Arduino IDE, and your code is "automagically" formatted!
Can we make it with out bread board
nice
Good afternoon. Does the 10 nF capacitor must be ceramic? I only have one AXIAL FILM CAPACITOR :(
Omg me too
Pls Mr Electronoob watch this
It is urgentttttt
Tnx, loved your channel btw
Wanna have one when I graduate
can anyone explain to me how the circuit works more deeply?
Very nice video bro, I want to learn Arduino coding where can I learn that ????
If you are an electronics hobbyist, simply go check out the Arduino webpage, it's very well documented and has a strong community of enthusiasts ready to help. If you want a deeper learning experience of how to really control hardware, start off by learning assembly and C by reading books and documentation.
But the most important thing - Learn by doing (hands on!) start with simple projects and then gradually built it up, make sure you have a goal project before you start. After a few years of programming you can simply read documentation and learn from that. It will get frustrating and it will be hard! have fun :)
Søren Pørksen thnx
Recently I am working on a project it require earthing but I don't know which is the earthing wire from green ,blue ,brown
Measure the voltage between the wires, when you get ~0V across 2 wires you HOPEFULLY have neutral and ground, or simply short it to ground and look at what happens :D
Usually green/yellow is the earth and blue is the neutral ... USUALLY ( Always check )
Great video, I’m a virgin to all this - would it be possible to create a version of this that works 360 degrees (meaning it can sense objects that arent only directly facing the sensor)?
Also, would it be possible to make a sensor detect a sensor?
I’m not sure if that makes sense but if anyone could answer I would love them forever!
Are you using a comparator? That schematic is not very useful.
You make the circuit without arduino
Konain Haider
I had done it😍
With 555 timer s
Midhun M-Tech 63 can you see me ? Tell me...
Here is a full design, range over two meters distance. I recommend. th-cam.com/video/Ctsr890sZ8M/w-d-xo.html
If I click the like button "like crazy", that will just like and then unlike it, if I'm not wrong. so I took creat care how many times I clicked it 😁
Bai hm sa to ni chla ya 😐😐
Sir giveaway
Can you send an oscilloscope to India please basic one I need one please
Какой то у вас Русский акцент)