Description
Product Description
The HC-05 (Compatible Type-B) is a highly versatile Bluetooth 2.0+EDR (Enhanced Data Rate) module designed for seamless wireless serial communication. While many entry-level modules are limited to “Slave” mode, the HC-05 is a Master/Slave dual-role module. This allows it to either wait for a connection (Slave) or actively search for and connect to other Bluetooth devices (Master), such as another HC-05 module or a Bluetooth-enabled sensor.
The Type-B Compatible version is specifically designed for high stability across various third-party microcontrollers. It features an integrated onboard button that simplifies the process of entering AT Command Mode. By holding the button during power-up, users can easily modify internal settings like the device name, pairing PIN, and baud rate. Mounted on a professional 6-pin breakout board with an onboard 3.3V regulator, it is “plug-and-play” ready for 5V systems like Arduino, providing a robust wireless bridge for any serial data.
Key Features
- Master/Slave Switchable: Configurable via software commands to act as a central controller or a peripheral device.
- Onboard Configuration Button: A physical tactile switch allows for quick entry into “Command Mode” for easy setup without complex wiring.
- Transparent Serial Bridge: Functions as a “wireless cable”; once a connection is established, data sent to the RX pin is instantly transmitted to the paired device.
- Broad Compatibility: Designed to work reliably with Arduino, Raspberry Pi, PIC, STM32, and PC-based serial terminals.
- Integrated Level Shifting Support: The baseboard includes a power regulator supporting 3.6V to 6V input for flexible powering options.
- Status LED Indicator: Built-in LED provides instant feedback: fast flashing (searching), slow flashing (AT mode), and double-flashing (paired).
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