Arduino is an open-source electronics platform based on easy-to-use hardware and software. It’s intended for anyone making interactive projects.
In this project we’ll use an Arduino to control a remote control (RC) car. We’ll also use an ultrasonic sensor to detect obstacles and make the car stop or go around them.
You Will Need
-1 Arduino
-1 Ultrasonic sensor
-1 RC car
1. First let’s assemble the hardware. Connect the ultrasonic sensor to the Arduino using jumper wires. The trig pin of the sensor goes to digital pin 7 of the Arduino and the echo pin goes to digital pin 8.
2. Connect the left and right motors of the car to pins 9 and 10 of the Arduino using the same jumper wires.
3. Now it’s time to upload some code to the Arduino. We’ll use the Arduino IDE to write a program that will make the car move forward until it detects an obstacle then stop and go around it.
4. Copy the following code into the Arduino IDE and upload it to your Arduino:
int trigPin = 7;
int echoPin = 8;
int motorPin1 = 9;
int motorPin2 = 10;
void setup() {
pinMode(trigPin OUTPUT);
pinMode(echoPin INPUT);
pinMode(motorPin1 OUTPUT);
pinMode(motorPin2 OUTPUT);
}
void loop() {
// put your main code here to run repeatedly:
long duration distance;
digitalWrite(trigPin LOW);
delayMicroseconds(2);
digitalWrite(trigPin HIGH);
delayMicroseconds(10);
digitalWrite(trigPin LOW);
duration = pulseIn(echoPin HIGH);
distance = (duration/2) / 29.1;
if (distance < 100) {
digitalWrite(motorPin1 LOW);
digitalWrite(motorPin2 LOW);
delay(500);
digitalWrite(motorPin1 HIGH);
digitalWrite(motorPin2 LOW);
delay(750);
digitalWrite(motorPin1 LOW);
digitalWrite(motorPin2 LOW);
delay(500);
digitalWrite(motorPin1 LOW);
digitalWrite(motorPin2 HIGH);
delay(750);
digitalWrite(motorPin1 LOW);
digitalWrite(motorPin2 LOW);
delay(500);
}
else {
digitalWrite(motorPin1 HIGH);
digitalWrite(motorPin2 HIGH);
}
}
5. Now it’s time to test our car! Press the reset button on the Arduino then place the car on the ground and let it go. It should move forward until it detects an obstacle then stop and go around it.
Congratulations you’ve just built an Arduino-controlled obstacle-avoiding RC car!
How do you make a basic RC car with an Arduino?
Answer 1: You will need an Arduino a motor controller two DC motors and a battery pack.
You can wire the motors to the controller and then connect the controller to the Arduino.
Finally you will need to write a program to control the motors.
What is the most important part of making a RC car?
Answer 2: The most important part is to have a good motor controller.
This will allow you to fine tune the speed and direction of your motors.
What size motors do you need for a RC car?
Answer 3: You will need two DC motors.
The size of the motors will depend on the size and weight of your RC car.
How do you connect the motors to the controller?
Answer 4: You will need to use motor wires to connect the motors to the controller.
How do you connect the controller to the Arduino?
Answer 5: You will need to use jumper wires to connect the controller to the Arduino.
What kind of battery pack do you need for a RC car?
Answer 6: You will need a battery pack that can provide enough power to the motors.
The size and type of battery pack will depend on the size and weight of your RC car.
How do you write a program to control the motors?
Answer 7: You will need to use the Arduino programming language to write a program to control the motors.
What are some of the things that you can do with a RC car?
Answer 8: You can use a RC car for many things such as racing stunts and even exploring.
How fast can a RC car go?
Answer 9: The speed of a RC car will depend on the size and weight of your RC car.
What are some of the challenges of making a RC car?
Answer 10: Some of the challenges of making a RC car include choosing the right parts wiring the motors to the controller and writing a program to control the motors.
Can a RC car be used for other purposes?
Answer 11: Yes a RC car can be used for other purposes such as a remote control for a robot.
What are some other things that you can control with a RC car?
Answer 12: You can control the speed and direction of the motors with a RC car.
What are some of the benefits of making a RC car?
Answer 13: Some of the benefits of making a RC car include the satisfaction of making something yourself being able to customize your car and having a unique car.
What are some of the drawbacks of making a RC car?
Answer 14: Some of the drawbacks of making a RC car include the cost of the parts and the time it takes to put everything together.
Is making a RC car worth it?
Answer 15: It depends on what you want to get out of it.
If you are looking for a unique car that you can control then it may be worth it.
If you are just looking for a fast car then it may not be worth it.
