Controlling The LCD Display By Using BlueTooth (HC05)

Introduction

In this article, I will explain about controlling the LCD display by using BlueTooth (HC05). It will control and display the name that we have set in our mobile phone. And, I will show the demo of how it works.

List of Parts

Hardware Parts

• Arduino Uno
• Potentiometer
• Bread Board
• Resistor
• BlueTooth (HC05).
• Mobile Phone
• Hook up wires

• Arduino IDE
• Android App.

Parts Explanation

BlueTooth HC05

• The BlueTooth HC05 is used to communicate the message from Arduino to the mobile phone.
• It is a wireless device to send the message clearly.
  
  Figure1 - HC05

Connection

Arduino To Bluetooth Module(HC05)

• In the Bluetooth, the Vcc should be connected to the 5v supply of the Arduino board.
• In the Bluetooth, the Gnd should be connected to the Gnd supply of the Arduino board.
• In the Bluetooth, the Tx should be connected to the Rx of the Arduino board.
• In the Bluetooth, the Rx should be connected to the Tx of the Arduino board.

• Fix the LCD in 16 to 2 of the bread board.
• The 16 pin to the Gnd.
• The 15 pin to the Vcc.
• The 14 pin to the Digital pin 12.
• The 13 pin to the Digital pin 11.
• The 12 pin to the Digital pin 05.
• The 11 pin to the Digital pin 04.
• The 01 pin to the Gnd.
• The 02 pin to the Vcc.
• The 03 pin to the potentiometer.
• The 04 pin to the Digital pin 03.
• The 05 pin to the Gnd.
• The 06 pin to the Digital pin 02.
  
  Figure 2 - LCD Display

• Connect the Arduino board to the LCD display as per the preceding figure.
• The Vin should be connected to the LCD display in 03.