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Product Name: HC-06 Bluetooth Module Original

The HC-06 Bluetooth module is a cost-effective, compact solution for short-range wireless serial communication. Designed to function in **slave mode only**, it allows devices like Arduino, ESP32, and Raspberry Pi to communicate wirelessly over Bluetooth V2.0. With a simple UART interface and onboard voltage regulator, it's an ideal choice for remote control systems, wireless data logging, and IoT projects.

Specifications:

Bluetooth Version	Bluetooth V2.0 + EDR
Supported Role	Slave only
Frequency Band	2.402 – 2.480 GHz (ISM)
Modulation Type	GFSK (Gaussian Frequency Shift Keying)
Transmission Power	Class 2 (+6dBm)
Communication Range	≤10m indoor, ~100m open field
Baud Rate	Default 9600 (Configurable via AT commands)
Operating Voltage	+3.3V to +6V
Logic Level	3.3V (TX/RX)
Current Consumption	~40mA
Security Features	Authentication & Encryption supported

Pinout Configuration:

Pin	Label	Function
1	KEY	Enables AT Command Mode when HIGH
2	VCC	Power Supply Input (3.6–6V)
3	GND	Ground
4	TXD	Transmit Data (to RX of MCU)
5	RXD	Receive Data (from TX of MCU)
6	STATE	LED Status Output (HIGH = Connected)

How to Use:
Connect the HC-06 module to any microcontroller (e.g., Arduino) using UART. Connect TX of HC-06 to RX of Arduino and RX of HC-06 to TX of Arduino via a voltage divider (to drop 5V to 3.3V). Set the serial baud rate to 9600 in your code. The default pairing password is 1234. Use any Bluetooth terminal app or another master module to pair and exchange data wirelessly.

Using Purposes:

• Wireless control of Arduino-based robots or devices
• Remote monitoring of sensors
• Serial communication with Android/PC via Bluetooth
• DIY IoT projects requiring Bluetooth slave modules

Please Note: Product information has been collected from various sources across the web. While we have made every effort to ensure the accuracy of the information presented, slight variations may still occur. Kindly verify the specifications and compatibility before using this product.