*Product images are for illustrative purposes only. Actual product may differ from images. Please refer to the product description and specifications for details.
HC-05 Bluetooth Module
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Product Specifications
| Specification | Details |
|---|---|
| Operating Voltage | 3.6V – 6V (typically 5V) |
| Operating Current | 30 mA (active), 1–2 mA (idle) |
| Communication Protocol | UART (TTL) |
| Baud Rate (Default) | 9600 bps |
| Bluetooth Standard | V2.0+EDR (Enhanced Data Rate) |
| Frequency | 2.4 GHz ISM band |
| Range | Up to 10 meters |
| Modes | Master/Slave (configurable) |
| Dimensions | Approx. 30mm x 14mm x 2.2mm |
Key Features
- Supports both Master and Slave modes for flexible communication.
- Easy UART serial interface for microcontrollers and Arduino projects.
- Configurable baud rate and settings using AT commands.
- Low power consumption with idle and sleep modes.
- Reliable wireless data transmission up to 10 meters.
- Compact and lightweight design for embedded projects.
Applications
- Wireless communication between Arduino or microcontroller boards.
- Bluetooth-based robot control systems.
- Home automation projects.
- Wireless data logging and monitoring.
- Remote device control using smartphones or PCs (with Bluetooth).
- IoT projects requiring short-range connectivity.
Frequently Asked Questions
It can communicate reliably up to 10 meters in open space without obstacles.
For most microcontroller applications, no drivers are needed. However, for PC connections via USB-to-serial adapters, drivers may be required.
Yes, it can connect to smartphones, tablets, and laptops that support Bluetooth V2.0+EDR.
Yes, it can easily be interfaced with Arduino, Raspberry Pi, ESP32, and other microcontrollers using UART.
The HC-05 supports both master and slave modes, while the HC-06 works only in slave mode. This makes HC-05 more versatile.
