HC-05 Bluetooth Serial Wireless Module
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Description
The HC-05 Bluetooth Serial Wireless Module is a versatile communication tool designed to facilitate wireless data transmission between devices. Whether you’re working on DIY projects or developing advanced electronic systems, this module offers seamless Bluetooth connectivity for your applications.
Its compatibility with the Arduino IDE and a broad range of libraries makes it accessible to both beginners and experienced developers, providing a seamless and cost-effective solution for wireless communication and IoT development.
Key features of HC-05 Bluetooth Serial Wireless Module
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- Bluetooth version 2.0+EDR compatibility ensures reliable wireless communication.
- Serial communication interface (UART) for seamless integration with microcontrollers and other devices.
- Master/slave configurable mode provides flexibility for different communication setups.
- Wide operating voltage range of 3.3V to 5V enables compatibility with various power sources.
- Support for standard AT commands simplifies configuration and customization.
- Compact size and straightforward design make it easy to incorporate into projects.
- Low power consumption, with active current consumption of less than 40mA and standby current of less than 1mA, prolongs battery life in portable applications.
- Versatile applications including data transmission, remote control, wireless sensing, and more.
- Robust communication with sensitivity of ≤ -84dBm at 0.1% BER ensures reliable data transfer even in challenging environments.
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Specifications of HC-05 Bluetooth Serial Wireless Module:
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- Bluetooth Protocol: Bluetooth Specification v2.0+EDR
- Frequency:4GHz ISM band
- Modulation: GFSK (Gaussian Frequency Shift Keying)
- Transmit Power: ≤ 4dBm, Class 2
- Sensitivity: ≤ -84dBm at 0.1% BER
- Operating Voltage: 3V - 5V DC
- Current Consumption: Active: <40mA, Standby: <1mA
- Operating Temperature: -20°C to +75°C
- Dimensions: 43x16mm
- Interface: UART (Universal Asynchronous Receiver-Transmitter) for serial communication.
- Configuration: Supports standard AT commands for easy setup and customization.
- Compatibility: Works with a wide range of microcontrollers and devices supporting UART communication.
- Range: Effective communication range varies depending on environmental factors but typically up to several meters.
- Security: Basic security features provided by Bluetooth 2.0+EDR protocol.
- Certification: CE and FCC certified for compliance with regulatory standards.
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Pinout of HC-05 Bluetooth Serial Wireless Module
The HC-05 module has six pins:
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- VIN: Module power supply (3.6 to 6V)
- GND: Ground
- STATE: Connection status
- EN: Enabling the AT Command Configuration
- RX: Receiving data (serial protocol)
- TX: Transmitting data (serial protocol)
















































