HC-05 HC 05 hc-06 HC 06 RF Wireless Bluetooth Transceiver Slave Module RS232 / TTL to UART converter and adapter

• Works with any USB Bluetooth adapters.
• Default Baud Rate: 9600,8,1,n.
• Built in antenna.
• Coverage up to 30ft.
• Bluetooth version: V2.0+EDR
• Operating voltage: 3.3V
• Default Baud Rate: 9600,8,1,n.
• Signal coverage: 30ft
• Item size: 4.3 * 1.6 * 0.7cm
• Item weight: 3g
• Package size: 9 * 3 * 1cm
• Package weight: 8g

• Commercial Series: Bluetooth module board Series
• With LED indicator light, use 150mA and 3.3V regulation chip.
• With VCC.GND.TXD.RXD foot for the Bluetooth
• With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
• Compatible with bluetooth master module".slave module"or master-slave(whole) module.
• Input voltage: 3.3~6V
• Size: 1.55cm*3.98cm

 Note:

input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply 
We advise to install "Bluetooth master module" 
The "State" is output foot for LED status, when bluetooth "Unconnected", output "Pulse" ; when bluetooth "connected", output "High level", we can determine the states from "MCU" 
If only the board , No any "Bluetooth Function "