Wireless Bluetooth Bot Using Arduino and Bluetooth

In this tutorial we are going to learn how to make a wireless Bluetooth Bot using Arduino and Bluetooth module hc-05, and control it using our smartphone.

The HC-05 Bluetooth Module is responsible for enabling Bluetooth Communication between Arduino and Android Phone.

For more information on HC-05 Bluetooth Module, refer to HC-05 Bluetooth Module.

The L298N Motor Driver Module is responsible for providing the necessary drive current to the motors of the robotic car.

The following is the circuit diagram of Bluetooth Controlled Robot using Arduino, L298N and HC-05.

Component required :

• Arduino Uno – Checkout
• Hc-05 Bluetooth module – Checkout
• 2X DC motors – Checkout
• L298 Motor Drive – Checkout
• Jumpers – Checkout
• Bot Chassis – Checkout

App for voice command control – Download
App for Button and Gesture Control – Download

Voice command app

You can set the voice command and what data to send at that voice command.

I’ve configured 5 voice commands,

Forward & Data = 1

Backward & Data = 2

Right & Data = 3

Left & Data = 4

Stop & Data = 5

Gesture and Button Control App
In this the data sent is fixed by the developer of the app.

Forward – FF

Backward – BB

Right – RR

Left – LL

Stop – SS

Get the full code here