Description
Product Description
The HC-06 (Compatible Type-A) is a highly popular Bluetooth 2.0+EDR (Enhanced Data Rate) slave module designed for seamless wireless serial communication. Engineered as a “Slave-only” device, it is specifically intended to be discovered and controlled by “Master” devices such as Android smartphones, tablets, or PCs.
The Type-A Compatible version is optimized for high-performance “plug-and-play” integration. It acts as a transparent wireless bridge: once a connection is established, data sent to the module’s RX pin is instantly transmitted wirelessly and appears at the paired device’s terminal. With its compact 4-pin interface (VCC, GND, TXD, RXD), it is the standard choice for adding wireless capabilities to Arduino, Raspberry Pi, and Industrial PLC systems with minimal wiring complexity.
Key Features
- Dedicated Slave Operation: Pre-configured as a “set-and-forget” peripheral, offering fast discovery and stable pairing for a smooth user experience.
- Transparent Serial Bridge: No specialized Bluetooth protocol knowledge is required; it functions exactly like a wireless RS232 cable for TTL serial data.
- High Compatibility: Optimized firmware ensures stable performance across a wide range of platforms, including various Android versions and Windows-based systems.
- Broad Voltage Support: The integrated 4-pin breakout board includes a 3.3V LDO regulator, allowing the module to be safely powered by 3.6V to 6.0V DC.
- Low Latency Transmission: Designed for efficient data throughput, making it ideal for real-time sensor monitoring and wireless control signals.
- Visual Status LED: Features a bright onboard LED: fast flashing indicates it is ready to pair, while a steady light indicates a successful connection.







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