How To Make Line Follower Robot Using PID Controller | Maze Solver Robot Using Arduino At Home

[@alandelgado5406]

This is the best I have seen so far. Thank you for sharing!

[@hichemchtara6327]

Bravo, Excellent !!! My remark regarding this kind of projects about the car, and the motors. The motors are very fragile !!! you should reinforce the motors connections with some tape. The other thing, is that the key for this project is the batteries !!! I finished by using 18650 batteries. I will try to use this PID source. It looks very fluid robot. BRAVO one again. Thanks to share.

[@saradindurana3300]

Hi where the negative point of the two batteries for motor driver is used?

[@emiruzuner8628]

First,thank you I used TCRT5000 5 sensors and I adapted your code to mine.Very beautiful.Thank you

[@subhashjadav2677]

@emir uzuner can you share your code

[@citlalygonzales4609]

can you share your code please

[@tranngocduykhanh8269]

Hi sir, Can you share your code please, Thanks

[@vamsitechnotran]

is it ur modify code is work

[@jcaguero332]

Hi, good job, but i have 1 obs: Integral part must be "I = I + error", delete "previous_I" because it not necessary, then you can use when Ki>0

[@aminanoushad7232]

Can i use array sensor for this instead of separate ir

[@shahzaibshamim6524]

Does it can simply solve maze or it can record shortest path to solve the maze ?

[@FatmaTarek-cj8vi]

will i have to change in the code if i use a 5 ir channel sensor?

[@tomiio6]

I'm not getting why you use the speed of 110 and 90 in any cases, is it just to sync both of the motors? It depends on our motor working the same or not, right?

[@Jawadayoub-gg1qx]

yes because the commercial motors is not the same quality and speed so he made some tests to make the motors the same speed

[@aravinda513]

How do you all learn this?! I want to be that good but I don't even get past basic ideas!

Start with C or C++

[@Jawadayoub-gg1qx]

no

[@Jawadayoub-gg1qx]

watch a full courses of arduino

[@Jawadayoub-gg1qx]

because th C and C++ will take alot of time but arduino is easier

[@shauryashukla2198]

Does it also learns the shortest path ?

[@Quizifyme]

How did you powered up the dc motors of 12 v with the battery of 9v. Will it not go slow??

[@ryanregivan8498]

if you need more power, just add some converter (step-up converter),

[@farhaanrazakhan3808]

Undoubtedly the best video on this topic... and keep making more videos 👍

[@geektechnophiles2494]

Thank you so much brother 💓💓🤓

[@rafinmahfuz8979]

@@geektechnophiles2494 can i use arduino uno???

[@abdulhafidhka9359]

@@rafinmahfuz8979 yes of course

[@fouzanjaved5441]

Sir, can you give me the circuit diagram and the code for the 5v buzzer for the line follower robot, so the line follower robot gives the sound when crossing the checkpoints of the black line for the line follower robot, is it possible or not?

[@Dmobzyt]

can it do turns which are more than 90 degree?

[@Aman_shetye]

It rotates round and round and round😅😅 i m fed up whats the solution

[@yashchavan9051]

I also facing this problem any solution if you have

[@ashfaqjuna]

Very cool indeed You could sell the whole thing as a kit, including a printed path :)

[@motazmsaddak5242]

Good job... can I use 3 sensors instead of 4 sensors?

[@SURYAPRAKASHR-ch9ph]

for 3 want to alter the code bro

[@Raavanan_Veeran]

can I use 8 IR sensors instead of 4 IR sensors? will it work just by modifying the read sensor values by adding 4 more sensors values and their if condition statement? or I need to change the entire code of yours?

[@geektechnophiles2494]

No you can go ahead and modify the code with four new sensors input.

[@sayedsahbeni2598]

where did you get the kp ki and kd values for the pid regulateur?did you find them by trial and error or are they random?

[@juanarielgodoybaez5071]

PID controllers are normally made by trial and error, but if you know the transfer function there are some methods to approximate the values, but they don't take into account the non-idealities such as noise and things like that

[@michaelquinn1926]

hey bro, I have several questions, 1. why did you put analogwrite right motor speed -30? is it because of your l298n didn't give the same voltage for both of motors? 2. why did you only concern about error 100-103? Are the others are not impornant? Michael, thanks

[@TheAdoris]

Hi, I built the same robot as You. But I used 2xpololu motors (micro version 12v N20-BT03 micro 10:1 3000RPM - 12V). But when i started the motors havent power to move the robot. Idk why. I done everything like You but have different motors that's all.

[@ryanregivan8498]

anyway cmiiw, maybe your supply ennergy for your motor is not enough. you must increase voltage your power supply ,maybe other poeple in here may give other advice

[@hoangoan6507]

Thank you for a wonderful video. Now I have a project about PID. Can you give me some reason to find out constants PID. Thank a lot

[@md.hafizurrahman5495]

is there any problem if the width of the black line is less than the width of the black line in this video?

[@thabassumnaseer8454]

Can I use a reflective array sensor instead?

[@Elexpedia]

this is really helpfull , glad to see this vid !

[@16ankurrajput61]

Source code file not working

[@yoyeah1461]

can i use analog value of sensor to read the line instead of digital value. Thanks

[@geektechnophiles2494]

Yes you can but for this code you need digital values of sensors.

[@EDISONSCIENCECORNER]

Ir module uses which op amp 358 or 393

[@ranveershah5630]

Can i use 100 rpm motors in this project??

[@Copterlord]

Bro, does the source code given in your description use only pid algorithm or both? And can replacing sensor(number)==high or low instead of 0s and 1s work for analog pin?

[@srinivasarajunallaparaju4228]

Bro we can use L293D instead of L298N...Is there any code problem when motor driver is changed

[@Jawadayoub-gg1qx]

you can , but make the pins the same

[@KillySeven]

How about dificult Track.. Can we use this robot?

[@manojitroy6144]

In the code you have used ENB with the right motor ...is that correct ?

[@vikasjha2029]

What i have to do if a want to run the bot on white line on black surface ? pls tell

[@repune7203]

What should be change in the code if there is a white line and black background?

[@rubenmay8]

Does the code work as you uploaded it? Or are there modifications required?

[@mamtachahal1277]

Why did u connect the +5v pin of L298n with the +5v pin of arduino when u are powering the arduino with a separate powersource?

[@farankhan9736]

The ground and Vcc of motordriver and arduino must be same

[@vasu5346]

bro, how you made the black line (either paint or any other)

[@afonsoteixeira571]

hi, what was done at 5:39 ? i didnt really understand that part

[@gopi.h.a8986]

bro I have build as same as you build . it will follow the lane but if curve comes some times it will go out of track and it will be rounding in circle . can you suggest me what I should alter in it

[@shahriyarharis4887]

Hey, why did u use -30 in case of right_motor_speed?

[@geektechnophiles2494]

Just to sync both motors speed.

[@shahriyarharis4887]

@@geektechnophiles2494 Thanks. Is it necessary or does it depend on the bot?

[@lifeofviky1646]

Which is the best motor.. And can we use aurdino uno bro. Pls.. Last doubt

[@geektechnophiles2494]

If you have BO motor use it otherwise use suggested motor in video components list

[@parkle_]

Can you explain why you use different value for Enable A and Enable B (Enable A is 120 but Enable B is 90). Is it due to motor is not "perfectly" the same?

[@Jawadayoub-gg1qx]

because the commercial motors is not the same quality and speed so he made some tests to make the two motors at the same speed

[@anuragsinghchauhan8304]

Amazing , Geek Tehnophiles

[@yassinemekaoui6089]

is the maze already implemented with pid????

[@lunacraig375]

Good work with full of explanation.. 👍👍

[@electro-baka8505]

can we just use 2 sensor IR ? i have tired now but its not working :V

[@TheRiishii]

Have you connected all three batteries on breadboard. You have used three batteries. 1 and 2 batteries joined with common ground. 2 and 3 are connected in series. I m not able to see the red wire of battery 3 fixed underneath chassis. Could you please help? In diagram you have shown connection with +9v but in this video demonstration I am not able to see any that connection? Kindly help

[@tushardeora8811]

same problem with me also

[@techthunder1119]

Bro can u share me the code a line following bot that is capable of following the path of black line as well as the white line in a black surface.

[@srinivasarajunallaparaju4228]

awesome broo very nice video

[@saurabhkuhikar8237]

Battery konsi use kiye

[@vishnudasnayak8582]

Where did you connect the battery please tell

[@tanjibmahmud6666]

This is an excellent tutorial.......but can you plz help me? i want to track black and white both line with one code at a time... can you plz provide me the code using these same materials?

[@trisiantonadapdap4602]

I want to try to practice it ... but I am confused how the program would you share the program? please

[@hariprasanth5720]

What is the line width si?

[@basu9195]

if i want to follow a white line then what should i change in code

[@anthonymigan3144]

Please explain me the interest to use more than 2 IR sensor for that application

[@geektechnophiles2494]

4 IR sensor is used to make it more accurate and i have used PID algorithm and Left hand wall algorithm to solve a maze which can't be possible with 2 sensors...

[@salmanrifath6331]

bro how to make this one with 8 sensor line follower sensor

[@lifeofviky1646]

Can we use bo motor

[@geektechnophiles2494]

Yes

[@tirionlanaster2626]

If code is duplicated will it be same outcome

How do you choose Kp Ki Kd?

[@abdullahakhtar2557]

How can i buy these tires

[@MamedTech]

Nice info bro🔥

[@aravindan9188]

Can you describe the connections from battery.

[@santoshkhurana4322]

Can it find shortest path

[@kuyamhanz]

This is something else wooooooooooo 🤟🤟🤟 this is better line follower I've ever watch so far 👍🤟 but can I ask sir? how about using motor shield? And Arduino uno?

[@Justananothergirl]

Is the code differs for l239d

[@geektechnophiles2494]

No, you can use L293D driver module which has PWM input pins.

[@bilalmalik8283]

Bro mera robot nhi chal raha connection jo circuit diagram walay wohi kiye or code wohi ap ny diya tha but wo round round ghoom raha bas or submission date kal hai btao ab mai kya krn

[@n.trivikramprasad7979]

whatif we are using uno module??

[@bpriyanka605]

can we use L293D instead of L298N

[@nazmussakib1551]

yes but l298n is better

[@KillySeven]

First Thank for your video. IF I WANT TO INCRASE SPEED HOW SHOULD I DO?

[@louisc8873]

How do you power up your system

[@geektechnophiles2494]

I have used three 9v batteries one for Arduino nano and another two for L298N module to drive motors. Watch video carefully to understand it.

[@lifeofviky1646]

Bro can we use two sensors

[@Jawadayoub-gg1qx]

you can , but it is not very accurate and you need to modify the code for 2 sensors

[@hanshuang4287]

It's a very detail and beautiful process! Thank you very much! Likes for your music taste

[@pranjalisinghal6012]

Can someone tell me where did he connected the red wire of 3rd battery

[@geektechnophiles2494]

I have connected two batteries in series so red wire of one battery is connected with black wire of another battery to make series connection between two batteries. I hope you understand 😃😃

[@tushardeora8811]

Dude iam not able to undertand what connection u r doing at 5:39 and how u have connected battery which is below chasis. dude pls reply fast. as iam in middle of making this project. and i cann't complete this project . if u don't answer me. CAN I get ur phone no. pls ?????

[@geektechnophiles2494]

You can text me on my social pages

[@JayKumar-xl9te]

Can you please show how to connect the batteries or explain it properly plz.

[@jatinsahoo458]

Hey why kp value is greater than kd value....???

[@nishanthraj7443]

For stability

[@somdebsar7378]

Done using Left hand wall algorithm and PID algorithm, kindly note!

[@throughhell8670]

Greate work 👌

[@lifeofviky1646]

Can we increase the speed of the motor bro

[@geektechnophiles2494]

Yes

[@hamzakhattak5365]

It gives me error in the code after uploading?what should I do please help me

[@atulpurna1936]

What error is it?

[@akshaykumarbhupathi9995]

We can use this code in Arduino uno?

[@geektechnophiles2494]

Yes you can use Arduino uno. 🤓

[@akshaykumarbhupathi9995]

Okay

[@gktech8220]

Can you share its clear image of circuit diagram

[@madcrispy321]

Help me for doing white line follower instead of black line i am in middle of my project pls help me fast of tell me code for it plsssss

[@gouravsinghshekhawat4606]

doing great job bro👍🏻

[@geektechnophiles2494]

Thanks buddy 🤓🤓🤗🤗

[@krishnachettri9095]

@@geektechnophiles2494 hello bro, I had tried to make same but it won't work will helpe plzz 6295494500 this is my whatsapp No. Plzz help me

[@itszablyas5914]

good video thankyou

[@parasarora8006]

I need your code as a reference for my project i.e. maze solving line follower.

[@geektechnophiles2494]

You can download code and schematic from description 🤓

[@parasarora8006]

ohh...thanks sir😅

[@prakashjha3339]

code is not downloading sir ..

[@_KEVIN_BRADLEY]

@@prakashjha3339 drive.google.com/file/d/1uwIm4XU1AwaXNGly-rAxr1xzuumuc8uO/view

[@akashmk4150]

sir iam not getting 12volt supply for motor please help me....

[@nishanthraj7443]

Ask for motor driver l298d

[@Abdelhamid_Helal]

can you send me the fritzing file for IR sensor to make the citcuit diagram of mine ?!

[@vickysanthosh]

This robot works any kinds of maze structures

[@jayadithyanalajala9604]

Sir please send me an circuit diagram for aurdino uno please is urgent and also a code if we use 8 it sensor

[@VISHNUKUMAR-vb2gx]

can anyone explain, why in code we take the value of Kp=25,Ki=0and Kd=15

[@asvsharma3508]

Actually thats just a number....... U shud start with all three 0.... And keep on trying with diff variation of three nos....and fins the best possible value......it's complete practical thing

[@santoshkhurana4322]

Can it follow white line

[@elroytan2851]

If you make the other place black yes it is just the color line that it is following as long as the IR sensor can detect it it ca line trace

[@RamaDani-sr2vy]

This code not working. Left sensor no work

[@teddyreacts6591]

Can u please provide another link for the code

[@milaptrivedi1885]

What does ENA and ENB mean here?

[@elroytan2851]

The speed control of the motor driver.... The spec sheet if you Google mention it

[@udayanchanda626]

i have done all the connection and uploaded the code but it still not working what to do

[@glitchbug3728]

Same

[@kavitabadgali9435]

good keep it up

[@geektechnophiles2494]

Thanks 🤓