HC-05 TTL Bluetooth Transceiver Module TTL OUTPUT

The 6 Pin HC-05 Wireless Bluetooth RF Transceiver Module, available in a pack of 20, is the perfect Bluetooth module for Arduino compatibility. It facilitates wireless serial communication through the HC-05 Bluetooth transceiver module, boasting Bluetooth V2.0 protocol standard and a mainstream Bluetooth chip for enhanced security with authentication and encryption features.

The HC-05 Bluetooth module supports both master and slave modes, providing flexibility for various applications. By default, it operates in slave mode, wherein it can accept connections but cannot initiate them. However, users can easily switch between modes using AT commands. In master mode, the HC-05 can initiate connections with other Bluetooth devices, offering greater control and versatility in wireless communication setups.

Wiring method:

• Power Supply (VCC): Connect the power supply positive.
• Ground (GND): Connecting the cathode.
• Receiver (RXD): The receiver, the Bluetooth module receives data from other devices, and the sending end TXD of the other devices normally.
• Transmitter (TXD): Send end, Bluetooth module sends data to other equipment; the receiving end RXD of the other equipment normally.
• Enable (EN): To enable the end, need to enter the at mode when 3.3V

Note: The module default baud rate is 9600, the default pairing password for HC-05 Bluetooth Module is 1234, while the default name is HC-05.