Home > Projects > Phone Projects > Smartphone Controlled RC Car Using Arduino

Smartphone Controlled RC Car Using Arduino

Summary of Smartphone Controlled RC Car Using Arduino


This Instructable guides users in building a smartphone-controlled Arduino robot car. The project utilizes a 4WD chassis, an Arduino Uno board, and an LM298 H-bridge module for motor control. A Bluetooth HC-05 module enables wireless communication with a smartphone, powered by a 12V Li-po battery. The assembly involves soldering wires to 6V DC motors, mounting them on the chassis, and installing a top roof structure using PVC or hardboard.

Parts used in the Smartphone controlled Arduino Robot Car:

  • 4WD Robot Chassis kit
  • Arduino Uno
  • LM298 H bridge Module
  • Bluetooth Module HC-05
  • 12v Li-po Battery
  • Male-Female Jumper Wires
  • Male-Male Jumper Wires
  • Duct Tape or any other tape
  • Smartphone
  • 6v DC motor

This Instructable shows how to make a Smartphone controlled Arduino Robot Car.

Update on 25th Oct 2016

Step 1: Youtube Video Link

Step 2: Parts and Tools Required

1. 4WD Robot Chassis kit
2. Arduino Uno

3. LM298 H bridge Module

4. Bluetooth Module HC-05

5. 12v Li-po Battery

6. Male-Female Jumper Wires

7. Male-Male Jumper Wires

8. Duct Tape or any other tape 9. Smartphone

Step 3: Structure / Chassis

You can buy Ready made 4WD Car chassis or you can make it by using PVC / Any kind of Hard Board .

Step 4: Motor / Actuator

In this project i use 6v DC motor . You can used any kind of 6v DC motor .

Step 5: Prepare the Motors Terminal

Cut 4 pieces of red and black wires with length approximately 5 to 6 inch.

0.5 sqmm wires can be used .
Strip out the insulation from the wires at each end Solder the wires to the motor terminal

You can check the motor polarity by connecting it to the battery pack.If it rotates in forward direction ( red wire with positive and black wire with negative terminal of the battery) then the connection is correct .

Step 6: Mount the Motor and Install the Top Roof

Source: Smartphone Controlled RC Car Using Arduino

Quick Solutions to Questions related to Smartphone controlled Arduino Robot Car:

  • How can I check the motor polarity?
    You can check the motor polarity by connecting it to the battery pack; if it rotates in the forward direction with the red wire connected to positive and black to negative, the connection is correct.
  • What type of motor is used in this project?
    The project uses a 6v DC motor, though any kind of 6v DC motor can be used.
  • Can I make the chassis myself instead of buying one?
    Yes, you can make the chassis by using PVC or any kind of Hard Board instead of buying a ready-made 4WD Car chassis.
  • What wire gauge is recommended for the motor terminals?
    0.5 sqmm wires can be used for the connections.
  • How long should the wires be when preparing the motors terminal?
    Cut 4 pieces of red and black wires with a length of approximately 5 to 6 inch.
  • Does the project require a specific power source?
    The project requires a 12v Li-po Battery to operate.
  • What component allows the car to be controlled by a phone?
    A Bluetooth Module HC-05 is used to enable smartphone control.
  • Is there a video tutorial available for this project?
    Yes, a YouTube video link is provided in Step 1 of the article.

About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

Follow Us:
LinkedinTwitter
Scroll to Top