Project tutorial

Arduino Chatting © TAPR-OHL

Inter Communication over 30ft Distance.

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Components and supplies

Apps and online services

About this project

Introduction

Networking is the one the most effective mode and medium of Intra communication technique which is used to communicate the people connected into the Intranet. But chatting with your colleague is possible with using Arduino? Yeah. Of course possible. Today we are going to discuss about it.

Hardware Required

  • Arduino mC x2
  • HC-05 BT module x2
  • Serial Communication cable x2
  • Hookups x8
  • PC (Laptop or Desktop) x2

Software Required

  • Arduino IDE

Arduino IDE is an Integrated Development software to edit, debug and run your Embedded C program. Download the latest version of the IDE from above link.

Working principle

I'm going to use the Technique of Master-Slave operation of HC-05 module. The master device is going to connect with slave device to share the data.

Wiring technique

Before moving on to Wiring the HC-05 and Arduino. We have to configure our BT-module as such meet the specification. The configuration of HC-05 is already been discussed. Check it out here.

After entering your HC-05 into the AT commands. You have to perform such operations to setup the Master and the Slave device.

Slave Setup

After entering in to the AT Commands. Do the following step to setup the Slave device.

Master Setup

After entering into the AT commands. Do check the following AT commands to connect the slave with the master device. Note down the Slave devices address and connect it to the master device using the link command.

After configuring your master and the slave devices. Disconnect all your wiring and reconnect it as shown. For both master and Slave devices:

Getting connected

The continues blink show the device is ready to pair. The one second blink indicates that the master and the slave devices got connected to each other.

Programming

Its almost simple. Just copy paste the code into your IDE and check the port and board's version and upload the program.

And open your serial monitor. And type the message to send to connected device. And enjoy the chatting with Arduino.

Typing the message

Open your serial monitor and type the message you want to sent to the connected users.

Thank you

If you feel any difficulties do not hesitate to contact me at: abu786sagar@gmail.com

Find out the PDF of this article here.

Code

Intra-Communication
Copy paste in your IDE and burn it to board

Schematics

Master
Wire it as master
1
Wire it as Slave
2

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