HC-05 Bluetooth to Serial Module - Arduino Compatible

A super simple serial communication tool, allows you to make your serial connections wireless! Simply pair with a PC or Android/iPhone smartphone and pass data over the virtual Bluetooth serial com port. The device will deliver your serial data on the other end to your Arduino/ 3D printer/ Quadcopter /Awesome mobile serial device!

HC-05 can be set to master or slave mode by user during runtime. The HC-06 can only be master or slave mode which can be customized by reprogramming.
Wiring(only need 4 wires): RX to RXD / TX to TXD / GND to GND / 3.6V to 6V
Power: 3.3V

Note: This module is not suitable for IOS system.

This module is the FS-040 module which uses the HC-05 bluetooth - serial module / firmware.

The following links are good resources for using this module with an Arduino or other devices:

http://www.martyncurrey.com/arduino-with-hc-05-bluetooth-module-at-mode/

https://arduino-info.wikispaces.com/BlueTooth-HC05-HC06-Modules-How-To