$9.29 (as of 16/09/2018 04:16 PDT details )
Features:
- HC 05 Wireless Bluetooth module, Master and slave mode Two in one module
- CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards
- Default rate 9600, the user can be set up default pin 1234 Module working voltage 3.6 V to 6V, Prohibit more than 7V
- Press the button, the module enter the AT mode, switched master or slave mode via AT commands, also can connected the device via AT commands specified
- You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as switch, LED