JoyStick Controlled Car

 


Remote controlled and autonomous cars fascinate everyone. And being able to understand their working, and most importantly, being able to make them is a wonderful skill and experience. Therefore, in this project, we will learn to make a joystick-controlled car using Arduino. 

Joy Stick Working Mechanism 



The Joy stick we'll be using is similar to one in your gaming controllers. We can move it horizontally and vertically. Additionally, it has a push button. The horizontal and vertical displacements of joysticks are tracked using VRx and VRy pins respectively. And the state of push-button, 1 or 0 is tracked via SW pin. The image below explains in more detail how the output of the joystick changes with a change in the joystick's movement. 


Hardware Assembly of Car

Coming to hardware of car, it can be divided into two parts, assembly of chassis and components and circuit patching. You may refer to video at the end of article to get visual representation of assembly and circuit patching.

Hardware Required

• Joy Stick
• Motor Driver
• 2 Motors
• 9V battery
• Chassis
• Wheels
• Jumper Cables
• Arduino UNO

Assembly


Circuit Patching





Software- Arduino IDE

int xVal; //X values from joystick
int yVal; //Y values from joystick
//Motor pins
int in1 = 8;
int in2 = 9;
int in3 = 6;
int in4 = 7;
void setup() {
Serial.begin(9600);
pinMode(A0, INPUT); //JoyStick
pinMode(A1, INPUT);
pinMode(in1, OUTPUT); // Motors
pinMode(in2, OUTPUT);
pinMode(in3, OUTPUT);
pinMode(in4, OUTPUT);
}
void loop() {
xVal= analogRead(A0);
yVal= analogRead(A1);
Serial.print(" Y is...");
Serial.println(yVal); //prints Y values
Serial.print(" X is...");
Serial.println(xVal);
if((600>xVal && xVal>400) && (600>yVal && yVal>400))
{
Serial.print("Stop");
digitalWrite(in1, LOW);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, LOW);
}
else if( (600>xVal && xVal>400) && yVal < 511) // forward
{
Serial.print("Forward");
digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
digitalWrite(in3, HIGH);
digitalWrite(in4, LOW);
}
else if((600>xVal && xVal>400) && yVal > 511) //backward
{
Serial.print("Backward");
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
}
else if(xVal > 511 &&(600>yVal && yVal>400)) //right
{
Serial.print("Right");
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, HIGH);
digitalWrite(in4, LOW);
}
else if (xVal < 511 && (600>yVal && yVal>400))//left
{
Serial.print("Left");
digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
}
}
view raw Making Joy Stick Controlled Robot Car hosted with ❤ by GitHub

DEMO

By assembling hardware as shown above, patching the circuit correctly, and uploading the code through Arduino IDE your car shall be ready to work, just like ours was. To see how it worked refer to the video below. 




It's really exciting to make your 1st car, and it's even more fun when it works properly without any errors or bugs. In case you encounter some error, feel free to share the error with us in comments section. We'll help you resolve it. 

Comments

Post a Comment

Popular Posts

How To Make Line Follower Using Three IR Sensor | Arduino Line Following Car

Image
Line Follower Cars are autonomous cars that follow a given route. We have already learned to make a Line Following Car using 2 IR sensors to follow easy tracks . Today we'll make a Line following car using Arduino and 3 IR sensors , that will precisely follow a black line over a white surface , take sharp 90 degree turns and easily follow high curvature curves . Before moving ahead, make sure you understand the Working Mechanism of IR Sensor and learn how to make 2 IR Sensor Line Follower Robot . This project is an upgrade of 2 IR Sensor Line Follower Robot.  Hardware Setup Components Required: Arduino UNO Motor Driver L298N Car Chassis (Car Frame | 2 x DC gear Motor | 2 x Tires) Jumper Cables 3 x IR Sensor  Car Assembly: The first step is to assemble the car chassis. To learn more about assembly, refer to this article:  Assemble Car Chassis . For visual demonstration refer to this video:  Assemble Car Chassis . Circuit Diagram: Software Setup Arduino needs to be...
Read more

How To Make Line Follower Car with Speed Control | 6 IR Sensor Arduino Line Following Car

Image
It's easy to make a robot that follows a line or smooth curves, but it becomes challenging to design the line follower robot when its track is complex. But we got you covered. Using 6 sensors and speed control of our car, we'll design our fast and advanced line following robot.  Before starting on this advanced project make sure you understand How Does An IR Sensor Works  and have tried making 2 Sensor Line Follower or 3 Sensor Line Follower . Hardware Setup Components Required Arduino UNO Motor Driver L298N 6 x IR Sensors (1 x TCRT5000 & 1 x HX-01) Car Chassis (Base & Motors & Wheel & Caster Wheel) 12V Battery Pack Jumper Cables Car Chassis Assembly Circuit Diagram Note: For speed control remove the tiny black jumper covering ENA and ENB pins on L298N. Make sure they are covered when not using the speed control, else project may not work. Software Setup Reading Analog Values of IR Sensor In our previous projects, we read digital values from IR Sensor - 0 for...
Read more