HC-05 Bluetooth Serial Module

The HC-05 is a versatile Bluetooth module that adds wireless communication to your projects in minutes. It creates a simple serial (UART) connection, letting your Arduino or microcontroller talk to a phone, computer, or another module without any wires.

With support for both master and slave modes, it's perfect for controlling robots from your phone, building wireless remote controls, sending sensor data, and home-automation projects.

Key features:

• Classic Bluetooth for reliable wireless serial communication
• Works in both Master and Slave modes
• Easy 4-pin connection (VCC, GND, TX, RX) with Arduino, ESP32 and more
• On-board LED status indicator and default 9600 baud rate
• Operating voltage 3.3V–6V, range up to ~10 metres