HC-06 Bluetooth Module

The HC-06 is a simple, reliable Bluetooth serial module that operates exclusively as a slave — making it the easiest way to add wireless control to any Arduino or microcontroller project. Once paired with a phone or PC, it behaves exactly like a wired serial connection, letting you send and receive data wirelessly with zero code changes.

🔹 Key Applications

• Wireless Arduino control from Android apps via Bluetooth

• Remote monitoring and data logging to smartphones

• Bluetooth-controlled robot cars and rover platforms

• Wireless sensor readout on mobile devices

• Cable-free serial debug output to PC

🔹 Why Choose This Module?

• Slave-only simplicity — no mode configuration needed, just pair and use

• Plug-in UART replacement — no driver or protocol changes in your code

• Reliable pairing — stays connected once bonded

• Compact module — integrates into breadboards and custom PCBs

• Works with any Bluetooth-capable device (phone, PC, tablet)

🔹 Technical Specifications

• Bluetooth Version: 2.0

• Mode: Slave only

• Interface: UART (TX/RX)

• Operating Voltage: 3.6 V – 6 V

• Logic Level: 3.3 V

• Range: Up to 10 m

• Default Baud Rate: 9600

🔹 What's Included

1 × HC-06 Bluetooth Module

🔹 Pro Tip

💡 The HC-06 is the simplest entry point for Bluetooth on Arduino. Download the 'Serial Bluetooth Terminal' app on Android and you're sending data wirelessly in under 5 minutes. For 5 V Arduinos, use a 1 kΩ + 2 kΩ divider on the HC-06 RX pin.

⚠️ Note: Always ensure proper heat dissipation and correct voltage configuration before powering connected devices.