Obstacle Avoiding Robot Car Using An Arduino

[@prithwijitgupta391]

Hi Micheal!! My project turned out so well. I am really happy. Your code just works so fine. Keep up the good work!! 👏👏

[@Tch.SouravExperiment]

Superb video! The visuals were clear and the project instructions were spot-on. I appreciate the effort you put into making this so accessible.”

[@a.w.aardiansyah9211]

Amazing project ! Just Additional Information... Ask permission Mr. Michael Klements for those of you who are new to assembling, then there is a problem with the speed of the motor.. the solution is: 1. Change the byte value of motorSpeed 2. check the condition of the battery, is it still good or not 3. check the state of the gear motors (dynamo) Thank you for your attention Greetings from Ponorogo, East Java, Indonesia

[@lilianseverinodasilva94]

What do you suggest to use instead of byte?

[@Sop7anaAllah]

Amazing tutorial Michail! short, precise, complete and simply explained. Thank you very much keep up the good work.

[@MichaelKlements]

Thanks Mohammad

[@ChrisHerrera-kb4lq]

thank you so much , i just learned about the part when you can put a max wait int the pulseIn() function. appreciate it :)

[@heninmuneer8436]

Thank you so much Michael! I'm really grateful ❤❤ Especially when you linked the again products,, you've got my respect man! Not only are you an amazing electronic device maker but also you're an amazing guy for helping us rookies so much 💗

[@MichaelKlements]

Thanks for the feedback and support Henin!

[@GelFireQueensland]

Great project! Thankyou for your work on this. Just changed a few speed settings for mine, works great.

[@MichaelKlements]

That's great to hear!

[@GelFireQueensland]

@@MichaelKlements Hi! I've since noticed it only ever turns one direction, regardless of obstacles location. I can reverse the turn direction by changing AF_DCMotor assignments Left to Right, but I can't get it to decide to best turn direction, it only goes same way each time. The servo was incorrectly looking right first, but fixing that didn't fix the problem. I downloaded your Code again in case I accidently changed something that matters, no go. Also played around with the 'int checkDirection()' in curiosity.. Anyway maybe you can suggest an answer if you have time. Thanks from QLD Australia.

[@rbarr04]

Very nice video. The only thing I am missing is how to access the pins on the top of the motor shield. But this video is exactly what I was looking for.

[@shaneferdz82]

This is simply wow! So well explained

[@himanshumuley5857]

Hey Michael , Loved how you made it look so easy but I need help I'm facing a problem.. I have my trig and echo pin connected to A1 and A0 respectively and I replaced the no. in your code to A1 A0, and when I turn on the car the motors dont run and servo motor is also not moving.. please help me out here:(

[@kanshikuljotsingh5788]

HI Michael Klements , you are very great .

[@9b21karankunbi2]

bro loved the project thank you so much

[@Andeman-kf6kv]

thank you so much for the help, it was very intresting and emosjonell. this expirience was life changeing. I have many of these robots now wich roams my grochery stores. i'am now a proffesional robot maker. i build robots, hand made. im rich now.

[@justanimation]

thanks man it helped in my school project

[@GG-sd2dr]

Thanks for the video, why didn't you just solder the wire to the board directly on pin 13 instead of using a pinhead?

[@MichaelKlements]

Only so that it can be removed if required

[@GG-sd2dr]

@@MichaelKlements oh, ok thanks!

[@fahmidhaque2494]

Oh my god, How can I ever thank you???? My car worked soo well, there's just one thing. The speed is too low, but other than that, everything is working great.

[@fahmidhaque2494]

Can you help me with the Speed issue?

[@MichaelKlements]

The only way to increase the speed is to use a higher supply voltage - but still stay under the maximum voltage that the driver shield can handle.

[@fahmidhaque2494]

@@MichaelKlements Oh okay Thanks for the information.

[@dilhyderstudios8569]

Today i made this in my college... ❤️

[@julkarnain3328]

Does it work I am not getting the code the code is wrong

[@worldVK1704]

@@julkarnain3328 which device you used to code the Arduino...... Pc.. Laptop or mobile..?

[@pranavrk8639]

How

[@romnathbaba3287]

​@@julkarnain3328 Ask it in chat gpt Thank me later😮

[@ravikumara7496]

Total cost

[@user-hp1gd6fr3x]

is it possible by connecting one 9 volt battery to the shield and other to the board pls answer fast

[@YellowBlox7777]

tysm bro video was too good with nice explaination

[@Berghiker]

That's an awesome car dude. Sounds like you from GP.

[@vishnu5763]

hey please anyone tell this work..? please🙏

[@chitobalazo]

Hi Michael, Thanks for your project is well documented, however I got an error message when I tried to compile it to check the code. The error message says the "getDistance was not declared hence can't upload or even compile the code. Hope you can help me. Thanks

[@aarthierusayee1164]

Thanks it is most helpful for me

[@ChineduEmmanuel-en7qj]

Thank you very much for this

[@Greatibekwe]

Thanks for this video. Pls can you make a gps waypoint and obstacle avoidance robot with two Arduinos communicating serially

[@yasmeenalaataima1429]

Great!.. the circuit diagram please 🥺

[@SteveJeffrin-x7k]

Good i am going to bo for my science project

[@tanbirhossain9370]

Thanks a lot brother ❤️❤️

[@MegalaKumar-ct4qr]

Bro which type of battery will use🤔

[@mqtt9294]

this is so cool!!!

[@andrewtorino2320]

How to change the code to adjust the speed of motors?

[@limeshsinha2617]

Sir tell me , how can upload a code

[@MichaelKlements]

Using the Arduino IDE

[@johnwilsong]

Hola, estoy haciendo un automóvil Arduino para un proyecto escolar sigue todos los pasos en el video pero el carro no camina / tengo tarjeta R3 Wifi MCU ATmega 328p / Wifi ESP8266 / Usb ch320g - se tiene que hacer alguna configuración diferente ?

[@anugrahambilad9577]

Can i do this with my old toy Car which can turn right and left with the help of gear motor How can plug that may also in the Motordrive shield

[@techysoham]

Hi Michael, thanks for the project! I did everything and made some changes on my own and the car works good! Just one issue, the servo motor is spinning too fast, so fast that it removes the wiring sometimes. Do you have any idea on how to fix this, like how to slow down the servo?

[@MichaelKlements]

Hi Techysoham, thats great to hear. There are some Arduino libraries that offer servo speed control, the other option would be to create a functional that moves the servo in single single-degree increments with a small delay between each step.

[@Footdkz2007]

Good luck.

[@MartiArtisan]

Would this concept work on a larger scale car/kart?

[@MichaelKlements]

Yes, you'd just need to use larger motors and motor drivers.

[@lilianseverinodasilva94]

How did you solder on pin 13? I’m struggling with this one!

[@jishabenny9183]

My Moter driver Is Not Working But Servo Moter is working on 4 moters Is Not Working, Plzz Reply

[@MichaelKlements]

This could be caused by a number of things; the battery can't supply enough power, the shield is faulty, the connections are faulty, the speed gains need to be turned up, the code is getting stuck somewhere (waiting for ultrasonic sensor) etc.

[@mashmesh-hd1eh]

Hi i need help i want to add gsm module and pir sensor on this project can you help me where to insert the codes

[@Ayush-90]

Hi Michael Kelements, Can we use a 9volts battery in this

[@MichaelKlements]

9V block batteries aren't able to supply enough current to drive 4 motors.

[@aradhyadadriwal]

I am in fifth and I have make this project today very easily It's too easy

[@user-mg3gk8ck2b]

Can you please share tinkercard link of project and bottom part?

[@sakthidharann7026]

What type of battery and it's power you used in this

[@MichaelKlements]

I used a 3 cell, 850mAh LiPo

[@jishabenny9183]

Can I use Arduino UNO R3 SMD Atmega328P Board - Clone Compatible Model

[@MichaelKlements]

Yes you can use an Uno clone board, as long as it has the same pinout as the original Uno it should work with the motor driver shield.

[@luisalbertotorrescarrillo3915]

Hola profe. felicitaciones por su trabajo el único problema que tengo es que no hace los giros, o solo avanza o solo retrocede, gracias por la respuesta saludos de Lima _Perú

[@arhantmovva4867]

revisa el código y los cables

[@bernicesasu1166]

What are the library you installed for the code

[@sairamreddy6642]

Hey, this video was amazing. Actually, I wanted to know how you fit the pins on thr motor driver shield? Thanks!

[@MichaelKlements]

I just soldered them onto the board myself.

[@abhishekrathore9470]

Bro aapka project work kr rha hai?

[@jimmyjummy5132]

@@abhishekrathore9470 yea man fully agree

[@abygv8620]

very good one i did it everything was fine and gd

[@MichaelKlements]

Thats great!

[@diptanshude2525]

How long does your car keep moving if u don't disconnect the power at all ?

[@MichaelKlements]

Around 5-10 minutes depending on how fast it is driving and how many turns it is making.

[@ggplayer2162]

i dont have the 13 slot on my board so where can i put it

[@uh_akai]

where is the servo library link

[@travelwithgishan6666]

I also make a car but it is not working can you help me to make it

[@3LGang2L]

Hi Michael, I understand this project is 3 years old however do you believe with some adjustments to the code an analog servo motor can be used instead?

[@MichaelKlements]

Like and analog RC servo motor or one that requires a different driver?

[@PlexusSkIllz]

Hi Michael, it would be a great help if you tell me what I'm doing wrong here. Even though I copied your code the robot doesn't function correctly. when infront of a wall when activated it checks for spaces to move and once it finds a way it moves and doesn't stop again when it encounters any obstacles. I've seen some other people have the same problem as I. I made sure that my connections are correct so what might be the problem. Thank you very much.

[@PlexusSkIllz]

For anybody wondering. I fixed this problem by adding return; after moveForward() in the if statement that's in the void loop

[@MartyrInside08]

Does anyone have the circuit simulation of this arduino in proteus 8?

[@ganesanudayakumar4628]

where can I find the wiring diagram?

[@artigupta7852]

You can make a video on how to make sensor lights using Arduino Uno and ultrasonic sensor.

[@MichaelKlements]

Thanks for the suggestion, I'll have a look at this.

[@artigupta7852]

@@MichaelKlements Can you give me the website on which you created the 3d model

[@MichaelKlements]

@@artigupta7852 it was drawn in Tinkercad

[@balajigoud249]

Please couldn you provide circuit diagram

[@ZVEKOfficial]

Mate what batteries do you use to power this thing ? I thing that's the most important aspect of this project (you skipped the part where you install the batteries) since many of us who're trying to get this to run use 9V batteries and that simply isn't the optimal power source

[@MichaelKlements]

Either use 4 x AA batteries in a pack or use a 2 or 3 cell LiPo battery (that's what I've used).

[@ZVEKOfficial]

@@MichaelKlements Yeah well I bought a 4 pack and a 6 pack AA holder. The 4 pack doesn't have enough voltage (1.5 x 4) as the L293D driver has a voltage drop of around 1.8V so the motors spin reaaaallly slowly. Nevermind turning left/right. The 6 pack is also meh to be honest. I think I need to buy a high voltage high capacity LiPo battery like you mentioned to run this at its full potential. Or maybe 2x 18650 Li Ion battery

[@charlesmanginsay9230]

hello Mr. Klements, I tried putting a 3 x 3.7V rechargeable battery with a total of 11.1V but when I added 5V to it giving a total of whopping 16.1V, the Arduino Mega 2560 stopped working. Did I supply too much current? is the 11.1V enough for the 4 motors?

[@MichaelKlements]

I'm not sure how or why you added 5V to it, 11.1V is enough to supply both the motor shield and the Arduino. That said, 16.1V also should not have damaged the Arduino Mega since these can typically handle a supply voltage of up to 20V.

[@sachusachi3228]

Hey man where to put the battery

[@suvendu286]

Hello brother, I am unable to understand how you connected the female header pin to pin 13. Can you please explain?

[@MichaelKlements]

I had to solder additional header pins onto my shield in order to plug it in - alternately you could just solder the wire directly onto the shield.

[@jyoti9388]

Is there any batery

[@fpkgoon2561]

hey could we plug the power supply into the Arduino Uno instead of the driver shield?

[@MichaelKlements]

The motor driver pulls too much current to power it through the Arduino, you should power the driver and allow the driver to power the Arduino.

[@kunshsabharwal]

How it will move ? With the help of any application ?

[@MichaelKlements]

The code for the robot car is available from my blog linked in the video description.

[@potatogaming5551]

Sir I cant move my vehicle I am using 9v battery

[@MichaelKlements]

A 9V block battery isn't able to supply enough current to drive four motors.

[@vidaddicts7273]

Hello, great project! I've run into a few problems and by modifying the code a little I managed to find the solutions. Although there is one problem that I can't find a way to fix. The ultrasonic module only detects a wall once, it stops after the 2nd wall, but the engines still continue forward into the wall. Could you help me, please? (My modifications did not cause this problem since when I used the original code it didn't work either)

[@ggplayer2162]

can u copy and paste ur code plz need help

[@tahamoiz1210]

How did you attach the wires to geared DC motors? And did you solder or just inserted the pin heads on pin no. 2 and 13? Thanks

[@MichaelKlements]

They're soldered to the motors, the headers are also soldered to pins 2 and 13.

[@aditya30020]

Can you please share circuit diagram

[@k-popjiminaaaaaa]

Where are these parts available?

[@Presid_offical]

Can we use 18650 li ion battery?

[@MichaelKlements]

You'll need to use 2 to meet the voltage requirements of the shield.

[@devinenimanimanvith4240]

Could you help me out here! I am using a 9v battery as power supply, though it is powering up the arduino board and motor driver it is not helping to drive the motors and servo motor, but when i connect to my laptop to upload the code it is poweringup enough to drive the motors and servo.

[@MichaelKlements]

A 9V battery isn't able to provide enough current to drive four motors. It works when powered by USB as well as it is supplementing the shortfall. You need to use a better battery pack.

[@mdhasanravda4223]

I got a problem , Everything is working fine except dc motors .They are not moving . Please help regarding this problem

[@MichaelKlements]

Try adjusting the motor speed parameters and check that your batteries are able to supply enough current to the drivers.

[@Shalaby2002]

I have a question about the yellow-capped component labeled "PW" on the motor shield. Additionally, I've developed a car using the same procedure and utilizing two 3.7V batteries each. However, I've encountered two problems: 1- When I unplug the USB, the car stops working. 2- The batteries seem unable to power all four motors to move the car. Initially, the setup worked fine during testing, but these issues arose later on. Could you please provide assistance on how to address these problems? and what specific Batteries and how many of them I need and what volatge.Thanks In adavnce

[@MichaelKlements]

I assume you're talking about the jumper labelled "PWR" - mine is black not yellow. This is jumper that either allows the shield to supply power to the Arduino or disables this feature if the voltage is outside of the Arduino's range. If you're supplying power to the shield only then you need to have a jumper on here to power the Arduino as well. Using 3.7V batteries, you would need them to be connected in series and ensure that they can supply enough current to drive the motors.

[@Shalaby2002]

@@MichaelKlements Thank you for your response. Yeah Man , you got me correctly. I was referring to the yellow PWR in my case 😂. From your comment, I gather that I need two batteries, providing approximately 7.2V and 1200mA. In this scenario, I simply keep the PWR turned off as it's. COZ I'm afraid of messing things up

[@MichaelKlements]

You need a supply voltage of at least 4.5V, so either one 7.4V battery or two 3.7V batteries in series would work. If the jumper isn't on then you need to provide the Arduino with it's own power source as well.

[@bencardamone7121]

So I'm a little confused. In the description, you list header pins as a part, but I am unable to find where they are actually used. Could you describe where they are used and also why they are needed.

[@MichaelKlements]

You need the header pins to solder to the motor driver shield so that you can plug the ultrasonic sensor into it. These pins aren't installed on the board when you buy it. You'll also need female pins to make up the cable to the sensor.

[@minroiwijayarathne1965]

@@MichaelKlements do you have a link from which I could buy header pins?

[@Chartered_Edu]

Can I make it 2 wheeled ???

[@iqbal5796]

please help me master... i want to install a buzzer to on the smart car, so that it sounds when sensor reads an object, please help me make the coding. Thank you in advance

[@evounknown3133]

can i use hw battries

[@HavocNavenGaming]

How to customise how near can the distance of the robot be with the obstacle before turning away. I want my robot to be about 10cm distance from the obstacle

[@MichaelKlements]

Just change the parameter stopDist in the code to 10

[@mohamedsabri2075]

The servo and the ultra sonic sensor work perfectly. but only 1 motor is working and the others are not !! is it because am using 9v battery ? and i have attach headers pin on A0 - A1 for the echo and trig instead the pins you are using , what changes i can do in order to use your code but with my current pins ? Thanks alot Mr Micheal

[@MichaelKlements]

It might be related to the 9V battery, these generally aren't able to provide enough current for four motors.

[@laxmikantreddy6567]

bro. will it work if we change header pin to A0 and A1

[@fredykaris4534]

Hey, I request for the code kindly

[@kapilkantkamal9824]

Hello I am new to Arduino And servo motor and ultrasonic sensor are working good But when it's time to move motors their Speed is very low and sometimes not even moving If it is the matter of battery pls suggest Which to use Or some different problem.

[@MichaelKlements]

Hi Kapil, You can adjust the motor speed in the code by increasing the motorSpeed variable. If that doesn't help then your batteries are probably underpowered, I usually use lithium-ion or lithium-polymer batteries for these projects.

[@potatogaming5551]

Hey my car is not moving what shall I do

[@fortamer4064]

Where can we get the 3D print file for chesse

[@rohitsoni4901]

How many pins of Arduino are remains usable after connecting L293D shield means which are those pins which are not connected to shield

[@MichaelKlements]

Pins 2, 13 and A0-A5

[@bhimraoshinde5862]

can you give circuit diagram 😢

[@whitesadheereee]

Could you modify the program for me?, I'm a beginner in robotics and I don't know how to program, I have the same project but I don't have a servo motor, could you modify?

[@bivintechtamil1072]

Hello Bro Can You Please Say Me How To Decrease the speed of motors and if reduced the turning speed also decreases

[@MichaelKlements]

Just adjust the motor speed variables at the begining of the code, the turning speed is scaled from these so will also reduce

[@mageshkumarg7673]

HLO PLEASE SEND CODE

[@user-tv8yg3xv2w]

Yes please give code

[@erican6708]

Where is the switch and battery? And how is it wired in relation to all the components. Sorry I am new to circuits.

[@MichaelKlements]

There is a blog post linked in the video description that has some more detail on the wiring and components used.

[@kerriehoward5549]

Hi Michael, great project. i am relatively new to Arduino and understand most of the sketch. However I would like to understand the difference between calling a function following a void command such as "void stopMove() and the call to distance=getDistance() where the getDistance code starts with the statement "int getDistance()" why isn't getDistance also a void statement? cheers.

[@MichaelKlements]

Hi Kerrie, There are two different types of functions, ones starting with void just carry out the code in the function and ones that start with int (or String, char, Boolean etc.) are functions that return an a variable or “answer” of that type. void stopMove just tells the motors to stop. Where int getDistance returns the distance measured to the object as an int variable type. Hope that helps make it clear

[@Lepo69]

Hi, so I don't quiet understand what did you do to the 12v battery, do you just put it in the middle section and wire it to the board or to the motors?

[@MichaelKlements]

It is connected to the motor shield's power input, the shield then powers the Arduino

[@Lepo69]

@@MichaelKlements Do you suggest any batterypacks that workf or this rc car or no?

[@Yourgaming-7fr]

Can we make a helicopter ????????? lol XD Just asking for fun if u can kindly do it !😀

[@bpSdigiMeter]

what software did you use for the making of the model in 3D?

[@MichaelKlements]

TinkerCAD

[@luisalbertotorrescarrillo3915]

Profesor otra cosita el robot usa una batería o 2 baterías siempre uso 2 pero ahora no esta claro como usar o 1 bat o 2 bat. por favor quería una respuesta gracias.

[@elizacrescini9444]

Hi, I would like to know how did the wheels turn left and right if you did not use servo motor on the wheels?

[@MichaelKlements]

The wheels don't physically steer left or right. The difference in motor speed between the left and right side turns the car.

[@elizacrescini9444]

@@MichaelKlements thank you so much!

[@vlogwithskr9554]

Sir I made the project for my college. And the car is working very well but one problem is that if the front of the car is empty then the car is still rotating.I checked the code many times, checked the hardware connection and found no problem. I don't understand why my car is not working like yours. Sir Please help me to fix it. I have to show this project to the college very soon. Hope you can help me fix it, thanks 😊

[@MichaelKlements]

The motors are not made equally so there is almost always a side of the car that has more power. You need to adjust the variable motorOffset to account for this. If it is turning left all of the time then you need to increase the offset, if it is turning right then decrease the offset.

[@vlogwithskr9554]

@@MichaelKlements Sir, when the front is empty, the servo motor is still rotating, that means the car is turning instead of going straight even on the empty road. It seems to detect some object in front.

[@darewolf6251]

Plz give me a The program code it's not working I can't download it

[@alexandar_kofficial]

Greetings Michael, I have a question regarding the rover. From halt it propagates forward and then at specific stopdistance(which i believe is set to be in cm), and then stops. THe servo moves from 0 to 90 to 180. Then the rover goes backwards till specific distance. But it never turn around. It always goes forwards and backwards. I have used your ocde and modified the tie daelys for some lines but it doesnt seem to turn at all. And yes I have tested the rover in spaces whereleft is more than space on the right etc.. What can I do ? I would really appreciate the help. All the rover turn setting are as such. If Turn left... right motors turn FORWARD, Left motors turn backward...vice versa for Turn Right. I do not know what to do. Please help me.

[@MichaelKlements]

There is not steering mechanism on the car, so to turn left the right wheels run forward and the left wheels run backwards, if the motor speeds are set correctly then the car will rotate on the spot (it shouldn't move forwards or backwards while turning). It sounds like your motor speeds have been adjusted incorrectly, so one side is probably overpowering the other side.

[@niranjanremesh6992]

@@MichaelKlements hi michael could u reply to my query pls

[@mrword4337]

We can do the coting in mobile