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HC-05 Bluetooth Module ( Pack of 25)

Q: 1. What is the Bluetooth module HC-05?

The first thing to do is to power on the Bluetooth module and see if you can connect to it. For this, you need an Android device. With the Bluetooth module powered and the LED(s) blinking, on the Android device go to Settings - Connections - Bluetooth and scan for Bluetooth devices.

Q: 5.Why is HC-05 Bluetooth used?

When it comes to electronics and communication, wireless connectivity is quickly displacing traditional connections. A replacement for cable connectors The electronics are communicated with by HC-05 Bluetooth using serial communication. Typically, a short-range wireless connection is used to exchange files between small devices like mobile phones. It is utilized in numerous consumer applications, including wireless keyboards, wireless mouse, wireless headsets, and game controllers. It operates in the 2.45GHz range. Data can be transferred at a rate of up to 1Mbps over a distance of ten meters. The operating range of the HC-05 Bluetooth module is 4-6V of power supply. Baud rates of 9600, 19200, 38400, 57600, etc. are supported. The most important feature is that it can be used in Master-Slave mode, which prevents data from being sent to or received from outside sources.

Q: 6.How many types of Bluetooth modules are there?

there are few types of Bluetooth modules are there like HC-06 Bluetooth ModuleHM-10 Bluetooth ModuleHC-05 Bluetooth Module

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This is HC-05 Bluetooth Module (Pack of 25)
This helps to setup Wireless Serial Communication, which is most demanding and popular due to its low price and extremely high features.
Used for a GPS navigation system, water, and electricity gas meter reading system.
Master/Slave Modes can be changed using AT Commands.
HC -05 Bluetooth module can be used in Master or Slave Mode and easy switchable between these two modes, By default Slave mode is configured.

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HC-05 Bluetooth Module ( Pack of 25)

~~Rs. 8,999~~ Rs. 6,599

Quantity:

HC-05 Bluetooth Module ( Pack of 25)

~~Rs. 8,999~~ Rs. 6,599

Description
Specifications
FAQ
Shipping & Return

Description

HC-05 Bluetooth Module

A well-liked module like the HC-05 Bluetooth can give your projects two-way (full-duplex) wireless connectivity. With the help of HC-05, you can connect with any Bluetooth-enabled device, such as a phone or laptop, or with two microcontrollers like an Arduino, Node MCU ESP32 etc. and it requires bread boards, jumper wires to connect.

Since the module uses USART to communicate, it is simple to connect to any microcontroller that supports USART. We can also set the HC-05 Bluetooth module's default values using the command mode. Therefore, this HC-05 module can be the best option for you if you're seeking a wireless module that can send data from your computer or mobile phone to a microcontroller or vice versa.

The HC-05 Bluetooth Module with Baseplate is a slave-only device. This means that it can connect to most phones and computers with Bluetooth but it cannot connect to another slave-only device such as keyboards and other HC-06 modules. To connect with other slave devices a master module would be necessary such as the HC-05 module ,which can do both master and slave.

The slave mode in HC-05 Bluetooth cannot initiate a connection to another Bluetooth device but can accept connections. Master mode can initiate a connection to other devices.

Key Features:

Working current: matching for 30 mA, matching the communication for 8 mA.
With the computer and Bluetooth adapter, PDA, seamless connection equipment.
Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
Potter default rate of 9600, the user can be set up.
Bluetooth protocol: Bluetooth Specification v2.0+EDR
Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps.
Security: Authentication and encryption.
Profiles: Bluetooth serial port.

HC-05 Bluetooth Module Pin Diagram:

HC05 pin description

Bluetooth Module Pin Description

HC-05 Bluetooth Module Pin Description:

Pin Number	Pin Name	Description
1	Enable / Key	This pin is used to switch between command mode (set low) and Data Mode (set high). The default setting of this HC 05 Bluetooth module is Data Mode.
2	Vcc	This pin can be used to power the Bluetooth module. It has an operating voltage of +5V DC.
3	Ground	Connect the module's ground pin to the Microcontroller’s Ground Pin (GND).
4	TX – Transmitter	Sends serial data to the MCU. This pin will distribute all Bluetooth data in the form of serial data to the Microcontroller.
5	RX – Receiver	Obtain Serial Data. This pin will transmit all serial data that is provided to it over Bluetooth.
6	State	The on-board LED attached to the state pin can be used as feedback to see if Bluetooth is functioning properly.
7	LED	Indicates the status of Module Blink once in 2 sec: Command Mode Repeated Blink: Waiting for connection in Data Mode Blink twice in 1 sec: Connection successful in Data Mode
8	Button	Used to control the Key/Enable pin to switch between Data Mode and command Mode

HC-05 Default Values:

Bluetooth Name: “HC-05”
Password: 1234 or 0000
Communication: Slave
Mode: Data Mode
Data Mode Baud Rate: 9600, 8, N, 1

Applications

Can be used for wireless communication between two microcontroller units.
Communicate with Laptop mobile phones etc.
Data Logging
Wireless Robots
DIY Home Automation Projects
GPS-based DIY projects.

Specifications

Package Includes:

25 x HC-05 Bluetooth Module

Specifications:

Serial communications	9600-115200bps
Frequency	2.4~2.524 GHz
Power Supply	5VDC
Operating Current	30mA
Range	<100m
Dimensions	30mm x 14mm x 2.2 mm
Weight	5 grams

FAQ

1. What is the Bluetooth module HC-05?

The HC-05 Bluetooth Module is a simple Bluetooth SPP (Serial Port Protocol) module that allows for the setup of a transparent wireless serial connection. Its communication is via serial communication which makes an easy way to interface with the controller or PC.

2. How do I connect the HC-05 Bluetooth module to Arduino?

To connect a HC-05 to Arduino:

● Connect VCC of HC05 with 3.3V of Arduino, please do not connect it with 5V as that can cook the module

● Connect GND with any GND of Arduino

● Connect Rx pin with Tx of Arduino

● Connect Tx pin with Rx of Arduino

3. Why is the Bluetooth module used?

The Bluetooth technology manages the communication channel of the wireless part. The Bluetooth modules can wirelessly transmit and receive data between two devices. With the help of the host controller interface (HCI), the Bluetooth module can receive and transmit data from a host system.

4. How do I know if my HC-05 is working?

The first thing to do is to power on the Bluetooth module and see if you can connect to it. For this, you need an Android device. With the Bluetooth module powered and the LED(s) blinking, on the Android device go to Settings - Connections - Bluetooth and scan for Bluetooth devices.

5.Why is HC-05 Bluetooth used?

When it comes to electronics and communication, wireless connectivity is quickly displacing traditional connections. A replacement for cable connectors The electronics are communicated with by HC-05 Bluetooth using serial communication. Typically, a short-range wireless connection is used to exchange files between small devices like mobile phones. It is utilized in numerous consumer applications, including wireless keyboards, wireless mouse, wireless headsets, and game controllers. It operates in the 2.45GHz range. Data can be transferred at a rate of up to 1Mbps over a distance of ten meters.
The operating range of the HC-05 Bluetooth module is 4-6V of power supply. Baud rates of 9600, 19200, 38400, 57600, etc. are supported. The most important feature is that it can be used in Master-Slave mode, which prevents data from being sent to or received from outside sources.

6.How many types of Bluetooth modules are there?

there are few types of Bluetooth modules are there like
HC-06 Bluetooth Module
HM-10 Bluetooth Module
HC-05 Bluetooth Module

Shipping & Return

Shipping Policy

All orders confirmed before 3:00 PM IST are shipped the same day, barring rare pickup delays on holidays or disturbances.
Delivery time in Metro cities is 1–3 days; for other locations, it is 3–7 days. Delivery varies based on location and courier service.

Return & Refund Policy

Return window: 7 days from receipt unless stated otherwise.
No refunds or replacements after the return window.
Returns are accepted only for non-working or damaged products.
Initiate return requests via a Support ticket or contact us at +91-8123057137.
Refunds are processed within 3–4 working days after inspection and approval.

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