Here are the main factory parameters of hc05 and hc06. Hc05 hc06 master and slave mode can be switched master and slave mode cant be switched. This module can be used in a master or slave configuration. Initially, to learn how to interface the uart based modules, it is better to use a hyper terminal software. Hc05 module is an easy to use bluetooth spp serial port protocol module, designed. Hc05 is a bluetooth module which is designed for wireless comunication. This module can be used in master or slave mode and easy switchable between these two modes, by default slave mode is. Hc05 datasheet bluetooth transceiver module custom maker pro. Has the external 8mbit flash can work at the low voltage 3. Interfacing hc05 bluetooth module with atmega8 avr. If the default configuration suits your application, then you can use egbt045ms immediately.
To setup wireless serial communication, hc05 bluetooth module is most demanding and popular due to its low price and extremely high features. This serial port bluetooth module is fully qualified bluetooth v2. Hc05 bluetooth module pinout, specifications, default. Hc05 bluetooth module pinout, specifications, default settings. There are notable differences between both firmwares as the hc05 is more efficient, more configurable and has a much more extended at command set. Hc0305 embedded bluetooth serial communication module at command set last revised. For that we have to connect hc05 bluetooth module with arduino uno board via uart port. H05 module works in three modes master mode, slave mode and slave loop mode. Connect the pio11 to low level, repower the module, the module work as server master. Leaningtech hc05 module bluetooth serial passthrough. Hc05 bluetooth module interfacing with arduino hc05 bluetooth module is interfaced with arduino uno and messages transmitted from phone using bluetooth are displayed on. The hc05 zs040 is a serial to bluetooth bridge module that allows for wireless communications between two microcontrollers or between a microcontroller and an android phone, laptop or desktop pc with bluetooth capability.
Bluetooth serial module is used for converting serial port to bluetooth. Interfacing hc05 bluetooth module with arduino uno is a best way to serial communication with other bluetooth unit. Yes, it shows how to connect the hc05 module but is a red herring and and does nothing to show you how to connect the module described, which is on a jymcu board, or the like. How to use hc05 bluetooth modules tutorial australia. This module is nicely assembled and i had not trouble to get this to work with my arduino uno. User configurable parameters using simple set of at commands. The version i have used in this project does not have a breakout board so its little cheaper but more difficult to solder. Pdf arduino bluetooth module hc05 pdf eng cours arduino.
Hcm4 hcm6 this document mainly introduces bluetooth serial module. In this paper we discuss the wireless communication using the hc05 bluetooth module, the bluetooth network topology and interfacing bluetooth with arduino. After the completion of the connections, the red led on hc05 bluetooth module will blink continuosly indicating that device is ready to pair. The hc05 is a poorly documented module with firmware designed to just be a bluetooth to ttl serial uart interface, to be seamlessly dropped in. I was using a hc05 bluetooth module for a home automation project. In this video, i will demo how to change the settings of the ubiquitous hc05 bluetooth module using the at command set. We know any data can be transmitted by serial communication through hc05 bluetooth module. For this discussion we will use an arduino uno to configure the hc05 and pair it with a samsung phone. How to use hc05 bluetooth modules by sam, updated on 07 april 2017 so weve taken a look at what bluetooth is in our introduction to bluetooth tutorial, and hopefully, youve found our choosing a bluetooth module for your project tutorial useful in deciding which bluetooth module is right for your project. The hc05 is a very cool module which can add twoway fullduplex wireless functionality to your projects. Configuring the hc05 bluetooth module with at commands. Hc05 bluetooth module is a simple wireless communication device based on the bluetooth protocol. Bluetooth module hc05 master and slave two in one module use the csr bc417 mainstream bluetooth chip, bluetooth v2.
Connect the rx pin of the bluetooth module to tx pin of usb to ttl converter, and tx pin of. Hc serial bluetooth products user instructional manual. Class ii bluetooth module with spp profile wireless serial cable replacement. Search for new device to pair, bluetooth module hc05 will appear as hc05. Most of the prerequisites we have used already in my past articles, except for the bluetooth module hc05. The extra features of the radio chip are ignored with the default firmwares. Hc05 module is an easy to use bluetooth spp serial port protocol module, designed for transparent wireless serial connection setup. Go to the bluetooth icon on computer, right click on add a device. The hc05 bluetooth module can be used in a master or slave configuration, making it a great solution for wireless communication. Hc05 bluetooth module is an easy to use bluetooth spp serial port protocol module, designed for transparent wireless serial connection setup.
We will establish communication between android mobile and atmega8 through bluetooth module which takes place through uart serial communication protocol. Shm08 have exactly the same at command that shhc08 have and it have the same uuid. The hc 05 bluetooth module is the most popular module in the indian market and this module is mostly used in the embedded projects. Today we will interface hc05 bluetooth module with popular wifi module esp8266 and control an led wirelessly by sending commands via bluetooth. You can use this module to communicate between two microcontrollers like arduino or communicate with any device with bluetooth functionality like a phone or laptop.
This led can be replaced by a relay and an ac appliance to build a home automation application. Comparing it to the hc06 module, which can only be set as a slave, the hc05 can be set as master as well which enables making a communication between two separate arduino boards. For at mode use to change the default setting or etc, please refer to this link modify the hc05 bluetooth module defaults using at commands. Module available in masterslave egbt045ms and lower cost slave only egbt046s device. In this tutorial we learn how to interface hc05 bluetooth module with avr atmega8 microcontroller. This module is designed for wireless serial communication and it is fully qualified bluetooth v2. Bluetooth serial modules allow all serial enabled devices to. This module is based on bc417 single chip bluetooth ic that is compliant with bluetooth v2.
Pdf hc0305 embedded bluetooth serial communication. Bluetooth module it is a class2 bluetooth module with serial profile that can be used as master or slave. The hc05 module is a bluetooth spp serial port protocol module which means that it communicates with arduino serially. Hc 05 embedded bluetooth serial communication module. Application of arduino and bluetooth module in wireless display. It pairs to my android phone and even connects to a bluetooth terminal app, but doesnt seem to receive anything, nor transmit. And there are three work roles master, slave and loopback at the. Function description perfect bluetooth solution has an edr module. Even though this module is small it has complete bluetooth features and using this module we can quickly add bluetooth features on our project to support ios devices. Learn how to communicate and send data over bluetooth using an hc05 module and an arduino board. Hc0305 embedded bluetooth serial communication module at. Interfacing hc05 bluetooth module with arduino uno nbcafe. The module is used for wireless communications of less than 100 meters. You can use it simply for a serial port replacement to establish connection between mcu and gps, pc to your embedded project, etc.
The module worked fine until sometime ago, it just stopped abruptly. By connecting the bluetooth module to usbserial converter, the data can be sent to the module and data received by the module can be read through the software. Hc0305 embedded bluetooth serial communication module. Hc05 embedded bluetooth serial communication module can be short for module has two work modes. Below is the example of interfacing between arduino uno and pc via hc05 bluetooth module. April, 2011 hc05 embedded bluetooth serial communication module can be short for module has two work modes. Using a 1k2k divider on the rx pin converts the arduino 5v to 3. Serial port bluetooth module is fully qualified bluetooth v2. You can use this module to communicate between two microcontrollers like arduino or. Hc06 is best option when short distance wireless communication is needed.
Hc05 bluetooth module philippines makerlab electronics. Hc05 bluetooth module provides switching mode between master and slave mode which means it able to use neither receiving nor transmitting data. More detailed at commands are given in the 1st pdf. Bluetooth modules are designed for wireless data transmission between small distances it considered as wireless. Arduino with hc05 zs 040 bluetooth module at mode posted on october 28, 2014 updated 19. Before using a hc05 bluetooth module, you must configure the module and pair it with an android phonetablet. Generally, the hc05 bluetooth module, or the hc05 sub module, to be precise, comes with the. Hc05, hc06hc06m, hc06s hc05d, hc06d with baseboard, for test and evaluation 2 bluetooth adapter. This article focuses on the hc05 bluetooth module, highlighting its specs and common applications. Generally, the bluetooth of hc03hc05 is recommended for the user.