debugging and using of HC-05 Bluetooth module

Bluetooth Module BT-HC05 module is a high-performance Bluetooth serial module.

1, can be used for a variety of Bluetooth-enabled computer, Bluetooth host, mobile phone, PDA, PSP and other intelligent terminal pairing.

2, wide baud rate range 4800~1382400, and the module is compatible with single-chip microcomputer system.

3, when the master-slave mode two Bluetooth module successfully paired, can be simple, change to wireless Bluetooth, so that your device or product more advanced, more fashionable.

4, you can easily use the Bluetooth mobile phone software provided to wait.

HC-05 embedded Bluetooth Serial Communication module (hereinafter referred to as module) has two modes of operation: command response work

Mode and auto-connect mode, the module can be divided into Master (master) and Slave (Slave) in the automatic connection operation mode.

and loopback (Loopback) Three kinds of job roles. When the module is automatically connected to the operating mode, it is automatically set according to the preset

When the module is in command response mode, all the following at commands can be executed, the user can

Send various at directives to the module, set control parameters for the module or publish control commands. By controlling the external pin of the module

Input level, can realize the dynamic conversion of the module working state.

Module LED Description:

1. Power up the module at the same time (or before), the key is high, the indicator light flashes slowly (1 seconds to light once), the module enters at the state, the baud rate is fixed at 38400.

2. After power on the module, the key is suspended or grounded, the indicator light flashes (1 seconds 2 times), indicating that the module enters a paired state. If you connect the key high, the module will also enter the at state. But the LED is still flashing (1 seconds 2 times).

3. The module pairing succeeds, at this time STA double Flash (Flash 2 at a time, 2 seconds flash once).

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At Mode operating instructions:

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Instruction format is at+ Directive \ r \ n (\ r \ n line return)

Attached schematic diagram:

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The Bluetooth module commands are commonly used in the attachment.

This article is from the "Useless Uncle" blog, please be sure to keep this source http://aslonely.blog.51cto.com/6552465/1616974

debugging and using of HC-05 Bluetooth module