This bluetooth is good for adding bluetooth functionality for project. Another use you will find for this bluetooth module
is with your flight management controller on your quadcopter.
It should be able to be used with several of the available options, so long as the control software supports bluetooth functionality.
With this module, you don't have to plug into your flight controller with a micro usb cable every time you want to tweak something,
upload a new configuration, or check data.

Parameters:
Working frequency:2.4G
Communication interface: UART 3.3V TTL level
RSS I support: Not supported
Communication level:3.3V
Transmitting power: 4dBm
Reference distance:10 meters
Air speed:2Mbps
Antenna interface: Built-in PCB antenna
Communication cable:40mA
Receiving sensitivity:-85dBm@2Mbps

Status indication:
When the master does not record the slave address, it flashes quickly; when it records the slave address, it flashes slowly.
Slave is not connected time. After connection, both the master and the slave are blinking and stopped.

Communication method(device support)
1.Connect with Bluetooth 2.0 device, one master and one slave, need to have the same pairing code and baud rate.
2.With mobile phones and laptops, you can connect with the built-in Bluetooth, or you can test through the serial port software.

Note:
1.The Bluetooth signal is greatly affected by the surrounding, such as trees, metals, walls and other obstacles will have a certain Bluetooth signal absorption or shielding, we advise do not installed in the metal shell.
2.Because the metal will weaken the antenna function,we advise when you lay board for the module, the module below the antenna do not shop and alignment, it is best to hollow out.

Package included:
4 * HC-06 Bluetooth Module