This bluetooth is good for adding bluetooth functionality for arduino 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. Features: Works with Any USB Bluetooth Adapters Built in Antenna Bluetooth Version: V2.0+EDR Operating Voltage: 3.3V Default Baud Rate: 9600,8,1,n With LED Indicator Light, use 150mA and 3.3V Regulation Chip Note: ✓SPP-CA Bluetooth Module Serial Port Level to 3.3V, if Connect 5V Level,the System Needs to Increase the Level Conversion Chip ✓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 ✓Due to 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 Contents: 3 * HC-06 Bluetooth Module

Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc. The module is mainly used for short-range data wireless transmission,such as Bluetooth wireless data transmission,Industrial remote control, telemetry,Traffic, underground positioning, alarm,Smart home ect. Interface level 3.3 V, the input voltage 3.6 ~ 6 V, current when the unpaired about 30 ma, matching after about 10 ma, no more than 7 V input voltage, can be connected directly to all kinds of single chip microcomputer, 5 V single chip can be connected directly, without MAX232 couldn't through MAX232. Using HC - 06 from module , which leads to the interface includes VCC, GND, TXD, RXD, reserved LED state output pin, MCU can state whether the bluetooth is connected through the foot, from machine KEY pin is invalid. Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit the Bluetooth connection and open a port Backplane, when the bluetooth connection has not been established by pairing the AT command set baud rate, name, password, and set the parameters of the power save. After the bluetooth connection automatically switch to passthrough mode.