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The HC-06 bluetooth module is designed for wireless serial communication. It is a slave module meaning that it can receive serial data when sent out from a master bluetooth device e.g. smart phones, PC.
When the module receives wireless data, it is sent out through the serial interface exactly at it is received. No source code specific to the Bluetooth module is needed in the arduino chip. An app on the phone is used to send out inputs to the module which receives and then transfers this to the arduino. The arduino and actuators in turn responds accordingly, as specified in the source code.
When the module is not in a paired state, the LED on the module blinks rapidly whereas when paired with the app on the phone, the LED on the module is a steady red.
This Bluetooth module can be used for data transfer, Bluetooth GPS and even a hands-free device.
Specifications
- It has a built-in 2.4GHz antenna
- Standard HCI Port (UART or USB)
- Storage temperature range: -40 °C - 85°C
- Working temperature range: -25 °C - +75°C
- Communication current: 8mA
- Working voltage: 3.1 - 4.2V
