A Beginner's Guide: Controlling an Arduino Car with a Remote

Hello everyone, My name is Lee from Lee Curiosity Arduino cars are exciting projects that blend creativity, engineering, and fun. Whether you're a hobbyist or a student exploring the world of electronics, building and controlling an Arduino car can be a rewarding experience. One of the most popular ways to control these vehicles is through a remote control system. In this guide, we'll walk you through the process of setting up and controlling an Arduino car using a remote. I don't have the chassis so I have to design and print it with my printer. You can download it and print it yourself.

Apr 30, 2024

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Components and supplies

5v dc motors

L298n - driver for stepper motor

arduino uno r3

18650 battery cell

Wheels for the motors

Remote Control

IR Sensors

Jumper wires (generic)

Tools and machines

drill, screwdriver, soldering iron

Apps and platforms

Arduino IDE program

Project description

Code

IR sensor Set Up

1#include<IRremote.h>
2const int RemotePin=8;
3IRrecv irrecv(RemotePin);
4decode_results results;
5void setup() {
6  // put your setup code here, to run once:
7  Serial.begin(9600);
8  irrecv.enableIRIn();
9}
10
11void loop() {
12  // put your main code here, to run repeatedly:
13  if(irrecv.decode(&results))
14  {
15    Serial.println(results.value, HEX);
16    delay(200);
17    irrecv.resume();
18  }
19}

#include<IRremote.h>
const int RemotePin=8;
IRrecv irrecv(RemotePin);
decode_results results;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  irrecv.enableIRIn();
}

void loop() {
  // put your main code here, to run repeatedly:
  if(irrecv.decode(&results))
  {
    Serial.println(results.value, HEX);
    delay(200);
    irrecv.resume();
  }
}

Code for Control Motors

1#include<IRremote.h>
2const int RemotePin=8;
3IRrecv irrecv(RemotePin);
4decode_results results;
5int in1=3;
6int in2=5;
7int in3=6;
8int in4=9;
9
10void setup() {
11  Serial.begin(9600);
12  irrecv.enableIRIn();
13  pinMode(in1, OUTPUT);
14  pinMode(in2, OUTPUT);
15  pinMode(in3, OUTPUT);
16  pinMode(in4, OUTPUT);
17    
18}
19
20void loop() {
21  
22    if(irrecv.decode(&results))
23      {
24        if (results.value==0xFF629D)//Press UP Button
25        { 
26          Forward();
27        }
28        else if (results.value==0xFFA857)//Press Down Button
29        { 
30          Backward();
31        }
32         else if (results.value==0xFF22DD)//Press Left Button
33        { 
34          Left();
35        }
36        else if (results.value==0xFFC23D)//Press Right Button
37        { 
38          Right();
39        }
40        else if (results.value==0xFF02FD)//Stop
41        { 
42          Stop();
43        }
44      irrecv.resume();
45    }
46    }
47   
48 
49void Backward()
50  {
51  digitalWrite(in1,HIGH);
52  digitalWrite(in2,LOW);
53  digitalWrite(in3,HIGH);
54  digitalWrite(in4,LOW);
55  }
56 void Forward()
57  {
58  digitalWrite(in1,LOW);
59  digitalWrite(in2,HIGH);
60  digitalWrite(in3,LOW);
61  digitalWrite(in4,HIGH);
62  }
63 void Stop()
64  {
65  digitalWrite(in1,LOW);
66  digitalWrite(in2,LOW);
67  digitalWrite(in3,LOW);
68  digitalWrite(in4,LOW);
69  }
70  int Left()
71    {
72    digitalWrite(in1,LOW);
73    digitalWrite(in2,LOW);
74    digitalWrite(in3,LOW);
75    digitalWrite(in4,HIGH);
76    }
77  int Right()
78    {
79    digitalWrite(in1,LOW);
80    digitalWrite(in2,HIGH);
81    digitalWrite(in3,LOW);
82    digitalWrite(in4,LOW);
83    }

#include<IRremote.h>
const int RemotePin=8;
IRrecv irrecv(RemotePin);
decode_results results;
int in1=3;
int in2=5;
int in3=6;
int in4=9;

void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();
  pinMode(in1, OUTPUT);
  pinMode(in2, OUTPUT);
  pinMode(in3, OUTPUT);
  pinMode(in4, OUTPUT);
    
}

void loop() {
  
    if(irrecv.decode(&results))
      {
        if (results.value==0xFF629D)//Press UP Button
        { 
          Forward();
        }
        else if (results.value==0xFFA857)//Press Down Button
        { 
          Backward();
        }
         else if (results.value==0xFF22DD)//Press Left Button
        { 
          Left();
        }
        else if (results.value==0xFFC23D)//Press Right Button
        { 
          Right();
        }
        else if (results.value==0xFF02FD)//Stop
        { 
          Stop();
        }
      irrecv.resume();
    }
    }
   
 
void Backward()
  {
  digitalWrite(in1,HIGH);
  digitalWrite(in2,LOW);
  digitalWrite(in3,HIGH);
  digitalWrite(in4,LOW);
  }
 void Forward()
  {
  digitalWrite(in1,LOW);
  digitalWrite(in2,HIGH);
  digitalWrite(in3,LOW);
  digitalWrite(in4,HIGH);
  }
 void Stop()
  {
  digitalWrite(in1,LOW);
  digitalWrite(in2,LOW);
  digitalWrite(in3,LOW);
  digitalWrite(in4,LOW);
  }
  int Left()
    {
    digitalWrite(in1,LOW);
    digitalWrite(in2,LOW);
    digitalWrite(in3,LOW);
    digitalWrite(in4,HIGH);
    }
  int Right()
    {
    digitalWrite(in1,LOW);
    digitalWrite(in2,HIGH);
    digitalWrite(in3,LOW);
    digitalWrite(in4,LOW);
    }

Downloadable files

3D Printed chassis

Chassis.stl

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