The module power input with anti-reverse feature, power reverse to the back of the circuit will not energize!

Bluetooth transparent transmission module allows you to get rid of the original equipment using serial cables tied to within 10 meters of wireless serial communication.Use the module without understanding the underlying complexity of the Bluetooth protocol, as long as a few simple steps you can enjoy the convenience of wireless communication. Bluetooth transparent transmission module AT commands only four, namely,test communications, change the name, change the baud rate, change the pairing password,AT instructions must from TXD, RXD signal pin set and can not be set through the Bluetooth channel. Send AT commands can be of various types of equipment MCU (such as 51, avr, pic, msp430, arm, etc.), it can be a computer via serial port (PC MAX232 serial connection or USB to serial later) sent.

Special Note:

1, the host module and slave modules can not switch the operating mode, only a single operating mode (master or slave)

2, the host module can only be paired HC06 slave module, the host can not be paired connection between the module, the module does not talk to the host computer or mobile phone with Bluetooth and other Bluetooth devices paired

3, the slave module can talk to a computer with Bluetooth or partially paired with a Bluetooth enabled phone, the slave modules can not be connected, if the computer does not have Bluetooth adapter, Bluetooth adapter you can buy our

4, the host module AT command less than a slave module AT + NAME instructions, other instructions in the same

5, the host module and slave module interface are 3.3V level, can be connected directly with a variety of TTL level serial port MCU (5V for MCU please series 1K resistor) connected directly, set the parameters you can use USB to MCU or shop serial conversion circuit MAX232 or increase after the computer serial port

Tips:
TXD: the sender, usually expressed as its sender, when normal communication on another equipment RXD. 
RXD: the receive side, generally expressed as their receiving end, normal communication when another device connected to TXD. When normal communication TXD never received their equipment RXD! Collected spontaneously: the name suggests, it is their own transmitted data received, which is connected to their own TXD RXD, used to send and receive the test itself is normal. Also known as the loopback test. 

        Since Bluetooth core board is not convenient wiring, so we put it in the end plate welded on the backplane with 3.3V LDO, in order to facilitate further disassembly, useful only soldering pins, leads to VCC, GND, TXD, RXD (TXD, RXD are 3.3V) to facilitate wiring, the module is re-key search button, and ON / OFF / WAKE pin is key leads to the foot, high output by an external MCU control module re-search, STATE for the LED status output pin is not connected, the output pulse , connected output high, judged by the MCU state, the module can be connected microcontroller, USB to serial, serial devices, the input voltage 3.6 ~ 6V (recommended 5V, shall not exceed 7V),

Module size: 40 * 15.5 (mm)

NOTE: The standard price for a single module prices, not one pair of module prices! ! !