Arduino autonomous Robot Project: A DIY obstacle avoiding robot using an SG90 servo

[@Educ8s]

I hope you find this video useful. If you want to support the channel see how here: educ8s.tv/support-educ8s-tv/

[@iamdeepakbhandari]

Bro can you publish a video in which we can switch autonomous to manual controlled.

[@DhadamRobotics]

Good job

[@shreyaskarsingh1835]

I m getting error while uploading the code its says faltal error AFmotor.h: no such file or directory

[@pulkitandpalaksharma6200]

@@shreyaskarsingh1835 i found same error while uploding what i do

[@pulkitandpalaksharma6200]

i found error while uploding the code the directory not found can i uplod with out files

[@danielkonat8535]

Thank you! Good explanation and nice pics. The video helped a lot ! I would like to suggest a few edits please. 1- The wiring for the Ultrasound Sensor needs to be corrected. The trigger and Echo pins in the diagram and in the code are inverted. The code has Trigger pin in A4, while the diagram has it in A5. 2- If you have issues with motor not running, may be you want to remove the input MOTOR12_1KHZ from lines 7&8. See updated code below. What I found is that for most of the battery operated motors, the MOTOR12_1KHZ will create an error and a humming noise in the motor. AF_DCMotor motor1(1); // Removed MOTOR12_1KHZ AF_DCMotor motor2(3); // Removed MOTOR12_1KHZ

[@alanpowell328]

Hi Nick, I've had the parts for some time but just got around to building it today. Worked first time, with one motor going slightly faster than the other. I should be able to fix this by playing with the motor offset value. Thank you for your work - I have learned a lot from your channel. Kind Regards Alan

[@jesperkleemann1333]

Wow! I have never seen so many people without any knowlegde about Arduino trying to build an Arduino-robot.Please! To all you beginners, try and go to the Arduino site and learn a bit Arduino before making big projects and you will have more fun instead of frustration.(Sorry for bad gramma and spelling)

[@alexkatsis2386]

Ευχαριστω, Finally someone explains arduino with simple terms!!! please keep this great work of yours for it helps people!!!

[@artha555]

This code seemed to work for me. Just change the Trig And Echo pins to math your setup. //including the libraries #include #include #include //defining pins and variables #define TRIG_PIN A5 #define ECHO_PIN A2 #define MAX_DISTANCE 200 #define MAX_SPEED 200 // sets speed of DC motors #define MAX_SPEED_OFFSET 20 //defining motors,servo,sensor NewPing sonar(TRIG_PIN, ECHO_PIN, MAX_DISTANCE); AF_DCMotor motor1(1, MOTOR12_8KHZ); AF_DCMotor motor2(2, MOTOR12_8KHZ); Servo myservo; //defining global variables boolean goesForward=false; int distance = 100; int speedSet = 0; void setup() { myservo.attach(10); myservo.write(90); delay(2000); distance = readPing(); delay(100); distance = readPing(); delay(100); distance = readPing(); delay(100); distance = readPing(); delay(100); } void loop() { int distanceR = 0; int distanceL = 0; delay(40); if(distance=distanceL) { turnRight(); moveStop(); } else { turnLeft(); moveStop(); } } else { moveForward(); } //reseting the variable after the operations distance = readPing(); } int lookRight() { myservo.write(180); delay(500); int distance = readPing(); delay(100); myservo.write(90); return distance; } int lookLeft() { myservo.write(0); delay(500); int distance = readPing(); delay(100); myservo.write(90); return distance; delay(100); } int readPing() { delay(70); int cm = sonar.ping_cm(); if(cm==0) { cm = 250; } return cm; } void moveStop() { motor1.run(RELEASE); motor2.run(RELEASE); } void moveForward() { if(!goesForward) { goesForward=true; motor1.run(FORWARD); motor2.run(FORWARD); for (speedSet = 0; speedSet < MAX_SPEED; speedSet +=2) // slowly bring the speed up to avoid loading down the batteries too quickly { motor1.setSpeed(speedSet); motor2.setSpeed(speedSet+MAX_SPEED_OFFSET); delay(5); } } } void moveBackward() { goesForward=false; motor1.run(BACKWARD); motor2.run(BACKWARD); for (speedSet = 0; speedSet < MAX_SPEED; speedSet +=2) // slowly bring the speed up to avoid loading down the batteries too quickly { motor1.setSpeed(speedSet); motor2.setSpeed(speedSet+MAX_SPEED_OFFSET); delay(5); } } void turnRight() { motor1.run(FORWARD); motor2.run(BACKWARD); delay(300); motor1.run(FORWARD); motor2.run(FORWARD); } void turnLeft() { motor1.run(BACKWARD); motor2.run(FORWARD); delay(300); motor1.run(FORWARD); motor2.run(FORWARD); }

[@TaRg3t222]

Use the ultrasonic sensor to warn you with a light and a piezo sound generator. Of course you need to controll it wirelessy so the feature comes in use :) Great video!

[@FranciscoRodriguezCasal]

Please don't stop doing this videos!

[@mog99lie]

I have built this robot and it is fantastic!! The code compiled first time and I had a working robot.Thank you for the project.. One small problem is when the robot comes to a wall at a very shallow angle it does not see the obstacle. How about a right and left sensor so it can move away. I am trying to add sensors with the Ping libary but I can't make it work.. I will keep trying!! This is one fantastc project with lots of options..... THANK YOU!!!

[@shivajibhardwaj8636]

can u plz tell tat which batteries r u using and how much

[@mk_annan22]

I was quite successful in building it with my custom PVC board. My first success in using the Sonar Sensor. Many thanks from Bangladesh and do please, keep uploading more. Can you please upload a project on Motion/Gesture control Arduino Robot using 433MHz RF module Transmitter and Receiver plus 6-DOY GY521 Gyro Accelerometer

[@TheNoobVishu]

I have coded same code but my motor is not working

[@TheNoobVishu]

Please help

[@SteveH-TN]

Thanks for sharing this video and your insights

[@valdeilsonsouzasilva3781]

Vc Usou Pilhas Recarregáveis nesse Projeto

[@edeepakn]

Could you make a video of Obstacle avoiding car with the access to bluetooth .My son loves to make robots with arduino he was triying to find a video at that point he saw this video.He said that he would wish to get this video with bluetooth module.

[@satrah101]

yes more robot vids, connect the small vacuum clean you built, many thanks for these videos.

[@MrKosxrem]

Nice robot my friend!! Why not trying to rotate the sensor 360 degrees, in order to map the surroundings, and then deciding the exit strategy? All you need is some memory, a sampling procedure to determine the distance on each side, and basic trigonometry to determine if you have enough space to pass.

[@MitzpatrickFitzsimmons]

Great project! One feature that would be great (since winter is coming) is to add a snowplow :) heheh

[@adwaitsworld2361]

Nicely explained.thank you

[@GetRealwithMike]

How can I get this to follow me like a puppy when it senses me in the room? Maybe using an IR camera for that instead of the/ or in addition to sonar? Can you write the code for that? Thanks

[@saivigneshathipalli]

hello i am vignesh.......loved ur project....great thing.....i also did the same as you did it...but the motors r perfectly working....but my sensor is not detecting.....pls help me out from this plsss...thanks

[@GetRealwithMike]

How can I change the code to make it chase my cat? I don't want it to hurt him, just chase him around so he gets exercise. Thanks

[@RixtronixLAB]

Nice info, thank you for sharing it :)

[@MaxBrainDevices]

Great work. I loved to build this kind of robot on my channel

[@geoffreyprodapro2245]

Sir I have a doubt what should the board name be given and what serial port did u connect it too

[@swikaradhikari1623]

u dont need such big motor shield just looks more messy expensive . You can use l293d motor driver ic for superb clean finish anyways nice video

[@elve44]

French retired I discover electronics. this tutorial is really great. can we have the sheme of connection of the LCD screen as well as modofications for code Encore thank you

[@harshvardhankumar9403]

You said in the video that we need 330 uf capacitors but in the list you have 100 nf and 300 uf capacitors. I am confused.

[@AliAbbas-vn1qh]

Hi, thanks for the amazing tutorial. After uploading the program, the car isn't moving. Can you please help?

[@paulsharpe7740]

hi great project and video how about return to home to charge it's battery. that would make it more useful and self safitiont and be a good base for other projects

[@durgeshshinde3967]

Arduino: 1.6.10 (Windows 7), Board: "Arduino/Genuino Uno" Sketch uses 3,830 bytes (11%) of program storage space. Maximum is 32,256 bytes. Global variables use 89 bytes (4%) of dynamic memory, leaving 1,959 bytes for local variables. Maximum is 2,048 bytes. C:\Program Files\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM10 -b115200 -D -Uflash:w:C:\Users\admin\AppData\Local\Temp\build68c293821abaf1b41f3093fa58d7e362.tmp/pd2.ino.hex:i An error occurred while uploading the sketch This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. this type of error occuring can you help me please

[@Roscovanul2]

Well ..I've got a problem with the Super Sonic Sensor. When I run the New Ping Example it would just show me some squares ...or occasionally some letters when i gently press its "eyes". However when i run the code that you gave us in the super sonic sensor tutorial (the one without any library) it works just fine. So I guess the problem would be at the New Ping library ? As the sensor works fine when i'm not using it. The problem is , I guess i will need the New Ping library in order to make this robot work ( for lookright() function and lookleft(function))

[@geekfpv374]

You are not supposed to touch the tx and the rx... You could damage the sensor touching the grid..

[@jackmanjls]

I have watched several of your vids...they are top notch. IDEA==>could you take this same platform and make a vid on using a remote control?

[@Educ8s]

Sure, that's coming!

[@abdulhaseeb3895]

I have uploaded the Similar code but the sensor senses late ...until it senses the robot collides with the obstacle...

[@Educ8s]

You can change the min distance that will make the robot to stop or update the loop function faster.

[@victoralfa5446]

I want to attach a harrow behind it that will need stepper motor for its angular movement. how can I go about it?

[@prabhavshankar606]

I use everything as per shown but my L293D produce beeping noise. I am using absolutely new 9V battery . Please help me

[@BigerBoy]

Where did you got the other red and black cables for the switch

[@Educ8s]

+Biger Boy I just cut off the pieces from the battery holder wires.

[@BigerBoy]

Ohh ok I did the same . And how do I resolve the reverse polarity. And hi from Puerto Rico

[@senthilkumarraju2187]

This project is perfectly working for me👍🏽👍🏽👍🏽. Thank you. 😀😀😀😀

[@SuperSpuddo]

Great video as always. How about some sound, lights and remote control. Would be a fun Christmas present for a small child as an introduction to electronics.

[@mariocontreras82]

Beautiful proyect and so well explained, thanks

[@muhammadasri1093]

sir i have an idea, what about the robot follow the direction of the user..the robot follow wherever the user goes..what sensor can be use to make this idea work?

[@chemgreec]

2) the wheels are not spinning properly. left wheel works as it should be but the right wheel only works with the reverse command..i checked the motor it works fine on both directions but when i connect it to the shield only the backwards command works..i reversed the red and black cable on the motor..now the motor spins forward when the command is backwards which means the problem is not with the motor but with the shield or the algorithm..what do you think?

[@Educ8s]

The code is correct. You probably have a received a faulty motor shield.

[@chemgreec]

ok just to update on this..the first motor shield was faulty i got one that works but then i had another problem..if the batteries are brand new the robot works correctly but as soon as they start to loose some power the robots behaves weirdly..specifically it stops goes back and looks left and right all the time even without an obstacle in front of it. I have done two things 1) added a second 9V battery to power the arduino seperatelly from the barrel jack. 2) I added two capacitors between 5v and ground on the motor shield next to the pins that feed the ultrasound sensor. I believe that when th epower drops from th batteries, the power to the sensor fluctuates which creates a false signal from the sensor to the arduino. Now with the two capacitors and the seperate power supply for the arduino. everything works much better for longer. DO you agree with me on my diagnosis for the continuous triggering of the sensor or is there a more fondamental error that I missed?

[@gourishbajaj]

actually I'm using 3 ultrasonic sensors ! can u help me with the coding plzzz.... ?

[@robobillgr]

Hello, first of all this is a great video. I would like to ask about a problem of mine. For some reason sometimes it does not go straight forward. IT seems that a motors starts some ms before the other motor, Any ideas how to solve this? When i place it to move forward to seems to have a drag left or right...it does go straight.

[@spaceisfuture169]

Good project. Sir I Need A little bit Help from your Side. Will You give me the Schematic Diagram of this project. Thanks you Sir.!!!!!!!!!!!!!!!!!!!!!!!

[@croreco4795]

Hello, can you please help me, the robot works fine but after he passes the first obstacleand goes to the other he just goes backwards and stops, it doesnt go anywhere but the motors do sounds

[@petrcaha6214]

As I am mechanical hobby technician, this video was very helpful for me and IP:) (Idiotic Proof), but I would need to connect more powerful el. motors, like for 12 or even 18 V DC for some grass mover, etc. Can you help with some details how to realieze it? Many thanks

[@BruGaleen]

A question. The motors I'm using may require a higher voltage than I'm using. I'm assuming that's why I can't get my code to run correctly. The sensor seems to work just fine on a test rig but does nothing on the robot. I copied and pasted the code directly from the website and connected everything correctly as in the video, and it doesn't seem to work. What might I be doing wrong? Thanks for reading. :)

[@irfanaslam5859]

sir can you make more robot videos

[@DaveLynks]

Hi, Excellent video. Is it possible to implement the project so that the robot is autonomous and create routes through mapping through a device (laptop, tablet, smartphone....)?.... How would it be? Thank you

[@royal6439]

How did you make the circuit design and what parts did you use? Thanks in advance and keep the great work!

[@athngeo]

The motor shield sends only 1,7 V at the right motor and it doesn't work. Meanwhile the left motor receives about 3,2 volts and runs normally. Is it a shields problem or simply there 's not enough power? I put 4x AA new batteries and the multimeter shows 5,9V. The servo and the sensor work just fine.

[@athngeo]

DemSkittlesDoe You are right! I changed the motor and it works without problems.

[@claud.8676]

hello sir, can you be able to limit the distance of the sensor to let say 30cm then the robot will detect obtacle thus it will move away

[@YashChavanYC]

How can I add a remote control to it? I want to control this via Bluetooth on a smartphone, how do I interface it with the smartphone in order for the smartphone to act as a controller?

[@HX2003]

Awesome project! How much weight can this carry?

[@mysterymanyo]

Awesome!!!!!!!!!!!!

[@tonibusljeta1325]

Hello, is it possible to install a Bluetooth device in a robot like this, and transmit information from the ultrasonic sensor back to the pc in real time, something like parking sensors in cars, and if can what software do i need for visualization?

[@tomherd4179]

Being new to this I have a question about the code. Once uploaded to the UNO will the UNO store and hold the code. I am confused about the power connection. The USB cable provides the power and the code transfer - so how once power is removed does your robot remember the code??

[@jesperkleemann1333]

Hi! Please go to the Arduino site and learn to use Arduino before you make bigger projects.

[@ignacevandevelde2733]

Dear, I'm looking for a smaller ultrason sensor but I cann't find it on the internet. Please smaller then the HC04, the HC04 is to large for my project. Thanks a lot for your video's and tips etc... Hope someone can help me with a link to look at a smaller ultrason sensor.

[@KnewLight]

Great sir, one can just sense a lot of humility and knowledge in your voice! ... you are not intimidating.

[@TRfromTO]

I have the Adafruit Motor Shield Ver.2 Should I be using #include Adafruit_MotorShield.h instead of #include AFmotor.h ?

[@kevinbarrios077]

You could try but most likely it won't work due to different power ratings, i suggest you buy the old motor shield v1 and install the old library AFMotor shield library

[@satheeshaj8239]

A nice project, but when I made it everything was working properly only thing was that one motor was not running Pls help

[@EngineeringNibbles]

Don't you need a diode for motors or are these small enough for it to not be a problem ?

[@mekiteu]

Diode for what purpose? Do you mean as a safety measure like used on relais? (In that case: The motors get their polarity switched by the motor shield in order to go backwards and forwards.) If you didn't mean this never mind me ;)

[@EngineeringNibbles]

mekiteu w I meant for inductive spiking But I hadn't though about the fact that that would prevent reverse gear, so a diode isn't an option

[@kiranshankar1354]

motor on one side is only moving plzzzzz help....

[@senthilkumarraju2187]

Then add capacitor

[@zabi4142]

great project....................

[@prateekrana1387]

could you pls just tell me from where did you got the code which you wrote in the programming

[@jishabenny9183]

my Motor Driver(L293D) is not working , what i do now ,plzz reply

[@pablor123]

One question, how u correct the desviation caused by the aling error of the motor.

[@dsmith5167]

Create a sloL and sloR variable. Then in the forward void subtract the sloL or R variable from the speed variable. Not perfect but will keep the bot relatively straight for short distances. See my code here. www.gertweb.com/SmartCar.html

[@hnbee730]

what does the booelan goesforward=false is represted to,int distace=...,and #define maxspeed offset=....(need the functionality of these codes )??????? plz help me thanks

[@angie96blizz]

Good day! How obstacle avoiding robot code can be converted to maze solving robot? Can u give me some suggestions about it? I'm working to convert my obstacle avoiding robot into a maze solving robot using left hand rule

[@Educ8s]

I will build a project like this in the near future, stay tuned!

[@samilcanselklc7232]

hi, do u solve the problem your project. I remember that u asked a problem MertArdunioHowToMake before.

[@angie96blizz]

I still don't have the solution for it until now. I tired to code but it don't work.

[@alwinwilson9355]

can these robots be used to help humans?how?

[@namankasliwal1725]

hello, can i make this with a relay instead of a sheild

[@rushabhsahare6299]

I'v connected 330uF capacitor as you have shown in the video, still my robot isn't working. :( Main problem is the weird behaviour of servo motor. Servo motor is not moving as expected. It is just, heading left side. When i connect, the robot to my laptop the servo is working fine, moving as it supposed to be. I'v checked all thing 330 uF Capacitor, Code and all wiring. Now i'm not getting whats the problem!PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!! Thank you.

[@Educ8s]

I think the problem is with the batteries. Use fresh batteries and tell me what happens.

[@fredykaris4534]

I need your assistance, when coding, my computer gives me a certain response Newping.h: that file does not exist,, what could be the problem kindly

[@cursoderobotica]

Nice project!! For future improvements It could be awesome add a IR remote control! Good job

[@alimaster5292]

hey can this program be used for maze solving robot ? or just improving it

[@aktarhossain3261]

can i make it without programing?

[@uditpandit3244]

I connected 9v to the motor shield but it's not working. But when I give supply through serial port it works perfect . Why is it so???

[@samilcanselklc7232]

The code you used in this project, I see another channel MertArduinoHowToMake before your project. I am sure that u used same code. Do u make same project? Because he added his project before u. I asked u because of I think make as a same project

[@jeff8794]

do you have an example of this code with sound added? I'm trying to add a speaker and sound to your code for the avoidance robot. Can I send you my code for review? Please provide an email, thanks.

[@victorkimnaquila4174]

Sir what are other capacitors that i can use in attaching to the servo?

[@storrho]

Great video, helped me alot. I made a robot for a school project along with a detailed 'scription' about robots in todays society. Is it okay if i put your video with the sources? Thanks! PS: One question, why did you solder the wires to the motor shield when you could've put them in the arduino first to let you keep using the motor shield?

[@TheNoobVishu]

I am Coded The Same Code In Arduino In Mobile But It Is Not Working Please help Me I Have To Do For My School Project

[@sirtessai]

I have a question about connecting the wires to the external power (EXT_PWR) on the motor shield. This may seem like a silly question, but how do I get the wires to stay connected? This is my first project using the external power block, and I can't figure out how to get the wires to stay. It doesn't seem right that I should solder them, so am I missing something obvious or is my shield maybe just broken? It doesn't seem like they're in there very tightly, and my LED doesn't turn on when I flip my switch.

[@Educ8s]

+Tessa Beebe You need a screwdriver to attach the wires to the connector.

[@sirtessai]

Oooh, I see now. Thank you so much! It's working now.

[@sirtessai]

I have one more quick question! My robot is working, mostly. It functions properly when plugged into the computer, but when I turn it on it won't actually move. The servo motor will rotate, but the wheels never actually move. Any idea why this might be? Thanks a million!

[@Educ8s]

You probably need better batteries

[@shivajibhardwaj8636]

battery name plz n specification

[@KnaufL]

great videos!keep up the good work. Also show us your face!

[@hamzahassan7730]

For the 330 capacitor you said "330 capacitor or similar". Can a 220 work?

[@Educ8s]

Yes, it might work. I haven't tried it though. Try it and if it does not work, use a larger capacitor.

[@sindhivlogs162]

Please send circuit diagram of this project

[@shubhamsingh-ry2sj]

Sir the robot is not moving its head and only rotating right side only please help me

[@dev9545]

my motor is of 150 rpm L shaped dc motor ,i am giving 9 volt to motor sheild and 9 v to arduino ,but dc motor are not working properly it cannot move forward , only it moves slowly ,sir plz tell me what to do?

[@prajjwaldevkota7077]

Hey i am getting problem . The robot doesnt sense the object around it. Can you help me

[@devendrachowdary3424]

add graphical output of utrasonic sensor like radar.

[@parameswaraniyer8114]

Sir, My robot turns at a very small angle and only to the left. It takes about 3 minutes for it to avoid the obstacle and move to a free space. plz help.

[@Mohamed-rj8gt]

Hi can you make a vidéo to robot with arduino but without a shield. thank's.

[@WARHERO388]

plz help me ive hooked everything up right sensor works like its supposed too but motors dont work at all only if i dc them they will spinn wont work with anything else

[@iannoble3354]

My servo and motors are not functioning well. The servo keeps rotating and my motors are not moving even I have new batteries. I am using 9 volts of battery. What is the problem? Reply please. Thanks!

[@亚东王]

you should change batteries

[@iannoble3354]

i am using 2 new batteries, the batteries are in series connection. My problem is the servo, it keeps rotating. It does not function well. I don't know what is the problem.

[@pritamsalunkhe6319]

ian noble hey im having the same problem.. only my servo motor n sensor is working the motors dont get enough power to function .. did you get any solution??

[@aldenpinto389]

I think the motor shield has a provision to add an external supply. Use a separate 9V battery n motor will have enough motor

[@SnowyGlory]

@@pritamsalunkhe6319 Did you find a solution for powering the motors?

[@IdeaLab1]

very good work i like it

[@MH24062000]

My servo motor isnt rotating. All other are working properly, except the servo motor. Pls help

[@user-gs1bw3oq8e]

Hey i need help fast im doing everything write but it says declaration of 'loop' as array of void. what does that mean?

[@BigerBoy]

How to solve the reverse polarity problem ?

[@FFGAMER-cp5vd]

Bhi I make this but servo can direct rotate why ??????????

[@nikhil4dtiwari]

Great Work sir... Thank you

[@phoenixmission]

What if I use a motor drive that does not have servo ports ?. Where do I plug the servo then ?

[@jesperkleemann1333]

Hi! Please go to the Arduino site and learn to use Arduino before you make bigger projects.

[@irfanaslam5859]

Plz can you make a vidio about mpu 6050