4-Wheel Arduino-Controlled Robot

 Dabble-controlled 4-wheel robot — an easy-to-build and easy-to-control robot that can be controlled via Bluetooth using Dabble, an indigenously developed mobile application. An Arduino Uno board,4WD Four Wheel Drive Kit — A Smart Robot Car with Chassis and other accessories and tools are all you need to build your robot. To control it, download Dabble from Google Play and pair it with Bluetooth; then your robot is ready to go!

Components Required:

4WD Four Wheel Drive Kit — A Smart Robot Car with Chassis
Arduino UNO
Breadboard
HC-05 Bluetooth Module
Jumper wires
Motor driver
DC Terminal Block
Motor Mounts

Connection:

To begin, we will construct the body of the 4 Wheel Robot.

Take the chassis and flip it over.
Mount four motor mounts to this chassis with M3 bolts and nuts.
M2 Nuts and Bolts are used to secure the DC Motors to the motor mounts.
Attach wheels to the DC Motor’s shafts.
As a result of flipping the assembly, your body is created.
The microcontroller we’ll be using is the Arduino Uno.
We will make all of the connections on it, but we will also use a breadboard to make the connections.

Make the connection shown in the diagram below.

Because the Arduino Uno does not have enough power to run four motors, we will use motor drivers. As a result of adding the motor driver, we will be able to provide the robot’s needed energy.

The left two motors are connected in parallel. Similarly, the right two motors are too connected in parallel. The connections are made as follows:

• Enable Pins — Digital Pin 10 and 11
• VCC — Arduino 5V
• m1_dir1, m1_dir2, m2_dir1, m2_dir2 — Digital Pin 4, 5, 6, and 7
• VC — External Battery
• GND — GND of Arduino and Battery make sure we connect all the GND wires.

Then we need to add a module that will connect your robot to the Dabble App on your smartphone.

We’re using the Bluetooth HC05 Module. Connect it

Our robot will require an additional power source. In addition, we will use a DC Terminal Block or a DC Jack to connect the Arduino Uno to the battery.

Arduino Code

Upload the following code: code for arduino

Working

Using Dabble, we can easily connect our robot to our Smartphone.

You must connect the Bluetooth that you are working on before you can work with any of the modules.

There are numerous modules available in the App for additional functionality.

We’ll be working with the Gamepad Module today.

And we’ll be using the buttons on the left:

Move Forward — Move Up
Down — Reverse Direction Left — Turn Left Right — Turn Right

Your DIY Dabble-controlled 4wheel robot is now ready for action!