Main Features:
● Leads the interface includes VCC， GND， TXD， RXD， KEY pin high trigger to clear the pairing information research
● LED indicates Bluetooth connection status， slow flash indicates unpaired. Always follow machine connection
● Backplate settings LDO input voltage is 3.6 - 6V， unpaired current is about 30mA， paired is 10mA， input voltage prohibit more than 7V
● Interface level 3.3V， can be directly connected the various SCM (51， AVR， PIC， ARM， MSP430， etc.)， the 5V MCU also can be connected directly
● Open to effective distance of 10 meters， over 10 meters is also possible， but not ensure the quality
● Save after establishing a Bluetooth connection through AT commands set of baud rate， passkey，parameters， Bluetooth connection is automatically switched to the pass-through mode
● Wireless serial Bluetooth port with free extension cable
● TXD: The sender
● RXD: The receiver