HC-05 Bluetooth Module | Change Name and Password | AT Commands

 Why Do we need to change HC-05 Bluetooth name and password?

Since, all the HC-05 / HC-06 modules have same name and password as 1234 or 0000. If we are designing Home Automation system for our Home, So we need a high security system.

In this way, we can change the name and password of our Bluetooth Module for better security of Home Automation System.

How we can change HC-05 Bluetooth name and password?

If you want to change the name and password of your HC-05 / HC-06 Bluetooth module name and password follow the video.

Bluetooth Module:

HC 05 Bluetooth is a wireless communication protocol; it is used in two devices as a sending and receiving the information. The Bluetooth is free to use in the wireless communication protocol as the range of the Bluetooth is less than the other wireless communication protocols like Wi-Fi and ZigBee. The Bluetooth operates at the frequency of the 2.41 GHz and also used in many small ranges of applications.

The HC 05 Bluetooth module is the most popular module in the Indian market and this module is mostly used in the embedded projects. The HC 05 Bluetooth modules are easy to use & simple, its price is low and these types of modules are interfaced with the Arduino, Rasberry Pi, and Microcontroller through the serial UART interface. These modules are designed for the transparent wireless connection setup and it is very easy to use in the Bluetooth serial port protocol.

Parts List:- 

1. Arduino Uno : https://amzn.to/3fxA4JZ

2. Bluetooth Module : https://amzn.to/3axC29U

3. Jumper wires : https://amzn.to/2WmLSI2

WIRING DIAGRAM :-

AT Commands:-

AT : Check the connection.
AT+NAME : See default name AT+ADDR : See default address AT+VERSION : See version AT+UART : See Baudrate AT+ROLE : See role of BT Module(1=master/0=slave) AT+PSWD : See default Password

AT+NAME= : Set Name AT+PSWD=" " : Set Password

AT+RESET : Reset and exit AT mode