Product Description<br><br><br>HC-06 Wireless Bluetooth Transceiver RF Main Module Serial For Arduino <br><br>Description: The core module HC-06 main modules- leads the interface includes VCC- GND- TXD- RXD- KEY pin high trigger to clear the pairing information re search led indicate Bluetooth connection status<br>- flash unpaired slow flash indicates paired but not slave connection<br>- Always follow machine connected Backplate settings LDO input voltage of 3.6~~6V unpaired current is about 30mA- paired 10mA<br>- input voltage prohibit more than 7V prohibition of reverse power!<br>- Interface level 3.3V- can be directly connected the various SCM (51- AVR- PIC- ARM- MSP430- etc.)<br>- the 5V MCU also can be connected directly- without MAX232 can not go through the MAX232! <br>- Open to effective distance of 10 meters- over 10 meters is also possible, but not of this the quality of the connection of the distance do to ensure The pair later when full-duplex serial use- do not need to know anything about the Bluetooth protocol- but only supports 8 data bits- 1 stop bit- no parity communication format- which is the most commonly used communication format does not support other formats. Support to establish a Bluetooth connection through AT commands set the baud rate- passkey- set parameters are saved after.<br> Bluetooth connection is automatically switched to the pass-through mode. <br>Wireless serial Bluetooth port with free extension cable.<br> With transparent shrink tube- dust and beautiful- and there is a certain degree of anti-static capabilities.<br> Size:3.57cm*1.52cm <br>Tips: TXD: the sender- usually expressed as its sender- the normal communication must be connected to another device RXD. RXD: the receive side- generally expressed as the receiving end of their normal communication to another device connected to TXD