DiGiYes HC-05 Wireless RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Serial Port Communication BT Module Fit for Arduino

Specification: Voltage: 3.6 - 6V Bluetooth Connection Default Password: 1234 VCC: Connect the power supply positive. GND: Connecting the cathode. En: To enable the end, need to enter the at mode when 3.3V. TXD: The sending end, generally referred to as its own sending end, must be connected to another device's RXD for normal communication. RXD: The receiving end, generally referred to as its own receiving end, must be connected to another device's TXD for normal communication. Features: - After pairing, it can be used as a full duplex serial port without knowing any Bluetooth protocol. It supports 8-bit data bit, 1-bit stop bit and parity setting communication formats, which are also common communication formats and do not support other formats. - You can set parameters and query information by pulling up pin 34 to enter AT command mode. - Small size, factory chip production, ensure the quality of the chip. It is covered with transparent heat shrinkable tube, which is dustproof and beautiful, and has certain anti-static ability. - The AT command can be used to switch to the master or slave mode, and the AT command can be used to connect the specified device. - The standard baud rate from 4800bps to 1382400bps is supported. - After Bluetooth pairing, it only needs to be used as a serial port with a fixed baud rate. Therefore, any serial port device with the communication format of fixed baud rate, 8-bit data bit, and no parity check can directly replace the original wired serial port without modifying the program. Place of Application: Serial port connection: data acquisition, smart car, serial printer, outdoor lattice bar screen control. Pair with computer or mobile phone. Flexible used: Baud rate conversion. Since the receiver and sender can choose their own baud rates, they can be used as baud rate conversion devices when the amount of data is small. Note: - Do not connect the power supply to the signal pin, it will burn out directly. - Do not short circuit TXD or RXD to the ground, it will burn out directly. Package Include: 1 x HC-05 Wireless Bluetooth RF Transceiver Module