HC-05 Bluetooth Master Slave Transceiver Module

The HC-05 is a Bluetooth Master Slave Transceiver module that can use to create wireless connections between devices. HC 05 Bluetooth Module Master Slave is a popular choice for Arduino projects, as it is relatively easy to use and can configure to work in a variety of ways.

The Bluetooth module HC-05 operates in the 2.45 GHz ISM band. HC05 Bluetooth Module uses a technique called frequency hopping spread spectrum (FHSS) to avoid interference from other devices. FHSS involves rapidly changing the frequency of the signal, which makes it difficult for other devices to interfere with the transmission.

The HC 05 Master Slave has a maximum data transfer rate of 1 Mbps. The HC-05 Bluetooth Master Slave has a range of up to 10 meters in open air. However, the actual range will vary depending on the environment and the obstacles between the two devices.

To use the HC-05 in data mode, you need to pair it with another Bluetooth device. Once the two devices are paired, they can exchange data. This BT HC-05 easily on breadboard with Arduino or your projects and you can prototype quickly.

The HC-05 Bluetooth module works by using a technique called frequency hopping spread spectrum (FHSS). FHSS involves rapidly changing the frequency of the signal, which makes it difficult for other devices to interfere with the transmission. The HC-05 module has a built-in microcontroller that controls the FHSS operation. The microcontroller also handles the communication between the module and the host device.

The Bluetooth Module HC-05 communicates at 9600 baud rate via USART protocol. HC 05 Bluetooth Master Slave Module has two operating modes: data mode and command mode. In data mode, the module can send and receive data from other Bluetooth devices. In command mode, the module can configure using AT commands.

Features : –

The HC-05 module is relatively easy to use, even for beginners. The Bluetooth HC-05 Master Slave module can configure using AT commands, which are simple text commands that can be sent to the module using a serial port. The HC-05 module has several benefits, including:

• Low cost
• Easy to use
• Wide range of applications
• Long range
• Secure

HC-05 Bluetooth Master Slave Transceiver Module Specifications : –

The HC-05 Bluetooth module can operate on a voltage range of 3.3V to 6V. However, the recommended operating voltage is 5V. This HC-05 Master Slave Transceiver Module is a Bluetooth module that can use to create wireless connections between devices. HC-05 Module is a popular choice for hobbyists and engineers because it is relatively inexpensive and easy to use. Here are the specifications of the HC-05 module:

• Bluetooth version: 2.0 + EDR (Enhanced Data Rate)
• Frequency: 2.4 GHz ISM band
• Modulation: GFSK (Gaussian Frequency Shift Keying)
• Transmit power: Class 2 (up to 4 dBm)
• Sensitivity: -80 dBm typical
• Range: up to 10 meters in open air
• Operating voltage: 3.3V to 6V (recommended: 5V)
• Operating current: 30mA (pairing) to 1mA (sleep)
• Data transfer rate: up to 1 Mbps
• AT commands supported

HC-05 Bluetooth Master Slave Transceiver Module Pin Descriptions : –

The Bluetooth HC-05 Master Slave module has 6 pins. HC-05 module can use in applications like communication between two microcontrollers, data logging, wireless robots, wireless sensors data acquisition and home automation.

• VCC: This pin provides power to the module. The operating voltage is 3.3V to 6V, but the recommended operating voltage is 5V.
• GND: This pin is the ground connection.
• TXD: This pin is the transmit pin. It is use to send data from the module to another device.
• RXD: This pin is the receive pin. It is use to receive data from another device.
• EN: This pin is use to put the module into command mode. When this pin is pulled low, the module will enter command mode. When this pin is left open or connected to 3.3V, the module will remain in data mode.
• KEY: This pin is use to reset the module. When this pin is pulled low for more than 2 seconds, the module will be reset.

HC-05 Bluetooth Master Slave Transceiver Module Applications : –

The HC-05 module can use to control devices remotely. HC05 Bluetooth Module can use to build IoT devices. You can use it to build a device that can collect data from the environment or control other devices & can use for wireless communication between two devices. The HC-05 module can use in a wide range of applications, including:

• Remote control
• Data transfer
• Setting up a wireless network
• Building IoT devices
• Wireless communication

Package : –

1 x HC-05 Bluetooth Master Slave Transceiver Module

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