How to make Edge Detecting Robot || Edge avoidance robot that never falls off the table !!!
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- Опубликовано: 26 май 2023
- Hello friends,
In todays video, we will learn how to make an edge detecting or edge avoidance robot. This robot detects the edges of table and avoids falling down. The project is done using arduino uno and ultrasonic sensor HR- SR04 as the main components.
The edge detection is done using the 2 ultrasonic sensors. When both the sensors are on the top of table, the robot continues to move forward. When at least one sensor is outside the table, the robot takes a reverse and changes direction. The response time of the ardino and ultrasonic sensor is very less and edge detection is done very quickly by the ultrasonic sensor.
The links for purchasing the items are given below.
1. Arduino uno board : amzn.to/3RPzXw8
2. L298N motor driver : amzn.to/3RO0F8k
3. HC-SR04 Ultrasonic Sensor : amzn.to/3XFNCd4
4. Motors with wheels : amzn.to/3W5EYTW
5. 18650 battery pack :amzn.to/3ziAm3N
6. Jumper wires : amzn.to/3xG4FB0
Link to download code : drive.google.com/file/d/1FTYE...
Please do watch the video .Thank you...
Please share the video if you like it.
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Наука
I did everything and it made my robot go in circles
Hi friend. I guess one motor is rotating forward and other motor is rotating backwards, which is causing the robot to go in circles. So just interchange the +ve and -ve wire connection of the motor that is rotating backward, to the motor driver board. That should solve the problem..
Nice😊👌👌
Thank you..🙂
is the code can be suitable for 1
ultrasonic sensor
am doing it for my science exhibition :))
Okay dear friend. Very happy to know that.🙂.. Please ask here if you face some problems. I can help..
Bro do u live in mohali??
@user-jm1vs1gh2e No friend. I live in Kerala..🙂
Im sorry but I wasn't asking u😊😊
@@user-jm1vs1gh2e ooh..okay..I am sorry..🙂
❤
Thank you dear friend..❤️
Is It can be work in nyt times without lighting
Yes friend. It will work in night also because it is using ultrasonic sensors which use sound waves for detecting obstacles..
Hi! How did you turn on and off the robot? Did you put a switch?
Hi friend. The battery pack that I am using is already having a small builtin switch kept on its side. So I did not have to put a separate switch.
Total program is correct or not
Program is correct only friend. I check the working of the code by making the project and then only upload. So there will not be any mistake in code.
can i get the circuit diagram
Yes.. I will make the circuit diagram nad share. Meanwhile you can watch the video and try to make this project. In the video, I am showing step by step how to make this project ..
Can you give code....
Hi friend. The code is already available for download from the link given in the description box..
@@Science_4U_ but that format not support to our phone...
@@JaiphulaBarik yes same problem...
@@JaiphulaBarik YOu need to install arduinodroid app in phone to open the code. You can open the code also in PC or laptop by installing IDE software.
I will paste the code here also..
#define trigPin1 4 // Trig Pin Of HC-SR04
#define echoPin1 5 // Echo Pin Of HC-SR04
#define trigPin2 6 // Trig Pin Of HC-SR04
#define echoPin2 7 // Echo Pin Of HC-SR04
#define MLa 8 //left motor 1st pin
#define MLb 9 //left motor 2nd pin
#define MRa 10 //right motor 1st pin
#define MRb 11 //right motor 2nd pin
long duration1, distance1, duration2, distance2 ;
void setup() {
Serial.begin(9600);
pinMode(MLa, OUTPUT); // Set Motor Pins As O/P
pinMode(MLb, OUTPUT);
pinMode(MRa, OUTPUT);
pinMode(MRb, OUTPUT);
pinMode(trigPin1, OUTPUT); // Set Trig Pin As O/P To Transmit Waves
pinMode(echoPin1, INPUT); //Set Echo Pin As I/P To Receive Reflected Waves
pinMode(trigPin2, OUTPUT); // Set Trig Pin As O/P To Transmit Waves
pinMode(echoPin2, INPUT); //Set Echo Pin As I/P To Receive Reflected Waves
}
void loop()
{
Serial.begin(9600);
digitalWrite(trigPin1, LOW);
delayMicroseconds(2);
digitalWrite(trigPin1, HIGH); // Transmit Waves For 10us
delayMicroseconds(10);
duration1 = pulseIn(echoPin1, HIGH); // Receive Reflected Waves
distance1 = duration1 / 58.2; // Get Distance
Serial.println(distance1);
delay(5);
if (distance1 < 10 ) // Condition For Absence Of Obstacle
{
digitalWrite(MRb, HIGH); // Move Forward
digitalWrite(MRa, LOW);
digitalWrite(MLb, HIGH);
digitalWrite(MLa, LOW);
}
else if (distance1>15) // Condition For Presence Of Obstacle
{
digitalWrite(MRb, LOW); //Stop
digitalWrite(MRa, LOW);
digitalWrite(MLb, LOW);
digitalWrite(MLa, LOW);
delay(5);
digitalWrite(MRb, LOW); // Move Backward
digitalWrite(MRa, HIGH);
digitalWrite(MLb, LOW);
digitalWrite(MLa, HIGH);
delay(500);
digitalWrite(MRb, LOW); //Stop
digitalWrite(MRa, LOW);
digitalWrite(MLb, LOW);
digitalWrite(MLa, LOW);
delay(100);
digitalWrite(MRb, HIGH); // Move Left
digitalWrite(MRa, LOW);
digitalWrite(MLa, LOW);
digitalWrite(MLb, LOW);
delay(500);
}
digitalWrite(trigPin2, LOW);
delayMicroseconds(2);
digitalWrite(trigPin2, HIGH); // Transmit Waves For 10us
delayMicroseconds(10);
duration2 = pulseIn(echoPin2, HIGH); // Receive Reflected Waves
distance2 = duration2 / 58.2; // Get Distance
Serial.println(distance2);
delay(5);
if (distance2 < 10 ) // Condition For Absence Of Obstacle
{
digitalWrite(MRb, HIGH); // Move Forward
digitalWrite(MRa, LOW);
digitalWrite(MLb, HIGH);
digitalWrite(MLa, LOW);
}
else if (distance2>15 ) // Condition For Presence Of Obstacle
{
digitalWrite(MRb, LOW); //Stop
digitalWrite(MRa, LOW);
digitalWrite(MLb, LOW);
digitalWrite(MLa, LOW);
delay(10);
digitalWrite(MRb, LOW); // Move Backward
digitalWrite(MRa, HIGH);
digitalWrite(MLb, LOW);
digitalWrite(MLa, HIGH);
delay(500);
digitalWrite(MRb, LOW); //Stop
digitalWrite(MRa, LOW);
digitalWrite(MLb, LOW);
digitalWrite(MLa, LOW);
delay(100);
digitalWrite(MRb, HIGH); // Move Left
digitalWrite(MRa, LOW);
digitalWrite(MLa, LOW);
digitalWrite(MLb, LOW);
delay(500);
}
}
@@JaiphulaBarik You need to install arduinodroid app in phone to open the code..
why it is not working for me
Hi dear friend. What us the problem that you are facing?. Is the robot not detecting edges? Or is it not moving at all?
It's not detecting edges my friend. It always move forward. But, if I remove the ultrasonic pin, it moves backward like it detects edges
@@enjay9723 Hm..okay friend. It is a problem with your ultrasonic sensor. I think it is faulty. Can you just bring your hand near to the ultrasonic senzor while everything is switched on?. The motor should change direction of rotation. Is it happening like that?
Please list components
Hi friend. The component list and its purchase links are already given in the description box.🙂
I will give the list below also..
The links for purchasing the items are given below.
1. Arduino uno board : amzn.eu/d/iH03OHj
2. L298N motor driver : amzn.eu/d/bzrLeMA
3. HC-SR04 Ultrasonic Sensor : amzn.eu/d/i5OkXM7
4. Motors with wheels : amzn.eu/d/gGczeza
5. 18650 battery pack :amzn.eu/d/gtI4BlO
6. Jumper wires : amzn.eu/d/hQ1P7Mi
Can I get circuit diagram
Yes sure friend...I will have to draw the cicuit diagram..will do it tomorrow and share with you..🙂
Thx
Hi please share circuit diagram it's important
Plz share the circuit diagram and abstract for this project
Robot is not atleast moving
Okay friend..Why it is not even moving could be due to poor batteries or a faulty motor driver board..
Robot is not working
Hi friend. Can you tell what is the exact problem?.
It doesnt work. all it does is just turn left and right then go back and forth regardless of the presence of edge.
Hi friend. That is because the ultrasonic sensor is not detecting properly. The ultrasonic sensors keep on measuring the distance below. If the distance below is less, that means that there is table underneath and it starts moving forward. But if it suddenly detects that distance is more, it means the edge is detected and it reverses and changes direction, to avoid falling down. In your case either one or both the ultrasonic sensors are not working. So it always measures higher distance though there is table underneath. So it keeps on reversing, change direction and moves forward.
Please use tested working ultrasonic sensors and it will solve the problem, for sure..
Edge detection not detecting correctly
Can you explain the problem friend?. I will help you to solve it.
It was going right left not moving straightly
And also fastly moving
Hmm..okay friend. It is definitely because either one of the ultrasonic sensor or both the ultrasonic sensor are not working properly..You have to replace them with good one..
@telugumusicworld2786 If it is mpving very fast, the easiest way to reduce speed is to use battery with lower voltage..
robot is not working
Hello friend. Can you please tell what is the problem?. I will help you.It will definitely work if connections are given correctly and all components and sensors are working properly.
Is the robot atleast moving? Or is the edge detection only is the problem?. Please tell. I will help you to solve the issue.