The HC-05 is a versatile Bluetooth transceiver module that supports both master and slave modes, making it ideal for wireless serial communication between microcontrollers and devices like PCs or smartphones. Operating on the 2.4GHz ISM band, it features UART interface, onboard antenna, and easy pairing. Perfect for replacing wired serial connections in embedded projects, GPS modules, or Arduino-based systems.
Note: This version comes without a baseplate and requires 3.3V level logic for safe operation.
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