৳320.00

In Stock (2 available)

The HC-05 is a popular, low-cost Bluetooth module for adding wireless serial communication (UART) to microcontrollers like Arduino, supporting Bluetooth 2.0 + EDR, and acting as both a master and slave device, ideal for remote control, robotics, and data transfer, communicating via simple AT commands and a default 9600 baud rate. It's known for its versatility, compatibility with smartphones, and ease of integration, though voltage level shifting (3.3V to 5V) is often needed for Arduino.

Features:

Bluetooth Version: 2.0 + EDR
Modes: Master/Slave (unlike HC-06 which is slave only)
Interface: UART Serial
Default Baud Rate: 9600 bps (configurable)
Operating Voltage: 3.3V to 5V (requires level shifting for RX pin)
Range: Up to 10m (can extend to 20m+)
Chip: Often uses CSR (Cambridge Silicon Radio) chipset
LED: Built-in indicator for pairing status