![]() I find the second way more convenient in view of the fact that: While connecting the module with Arduino you can either use the pre-defined RX, TX (0, 1) pins of the board or you can define any other pin as RX, TX pin using the SoftwareSerial library. In this article we will be using Arduino UNO for demonstrating the functions of HC05.Ĭonnecting the HC-05 module with Arduino: HC-05 can be used with a number of microcontrollers like Arduino boards ( Arduino UNO, Arduino Nano, Arduino Pro Mini etc.), ESP8266 Boards, STM32 Boards and any other development boards available out there. Note: The two pins STATE and EN are of no use in this project. HC-05 Bluetooth module consists of 6 pins which are STATE, RXD, TXD, GND, VCC and EN as mentioned on the back of the module. Can switch between master mode and slave mode: Yes.Automatic connection to the last device: Yes.Communication Method: Serial Communication.Master mode: Several devices can connect to it and it can share data with all of them. Slave mode: It will connect to master device and will share data from him only. It can work either as a slave or a master. It is mostly used in electronic projects. ![]() HC05 module is a Bluetooth module which uses serial communication. Getting started with HC-05 Bluetooth Module: ![]() It provides a maximum data rate of 1Mb/S, working in a nominal range of 100 meters using 2.4 GHz frequency.ĭue to these several factors, Bluetooth is popularly used all the way from hobby grade projects to industrial ones.ĭevices which commonly harnesses Bluetooth communication: Bluetooth is a communication protocol which provides an affordable communication in PAN (Personal Are Network). ![]()
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