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HC-05

ETC
Part Number HC-05
Manufacturer ETC
Description Bluetooth Module User Manual
Published Feb 17, 2020
Detailed Description “Your Robotic Solution” www.mybotic.com.my HC-05 Bluetooth Module User’s Manual V1.0 1|Page Contents 1. Introduction......
Datasheet PDF File HC-05 PDF File

HC-05
HC-05

Overview
“Your Robotic Solution” www.
mybotic.
com.
my HC-05 Bluetooth Module User’s Manual V1.
0 1|Page Contents 1.
Introduction 3 2.
Pin Definition .
.
.
4 3.
Sample Hardware Installation and Sample Source Code .
5 4.
Communication between Arduino UNO and PC via Bluetooth.
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8 5.
Warranty.
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.
16 2|Page 1.
Introduction HC-05 Bluetooth Module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup.
Its communication is via serial communication which makes an easy way to interface with controller or PC.
HC-05 Bluetooth module provides switching mode between master and slave mode which means it able to use neither receiving nor transmitting data.
Specification:  Model: HC-05  Input Voltage: DC 5V  Communication Method: Serial Communication  Master and slave mode can be switched 3|Page 2.
Pin Definition VCC GND TXD RXD KEY Pin VCC GND TXD RXD KEY Description +5V Function Connect to +5V Ground Connect to Ground UART_TXD, Bluetooth serial signal sending PIN Connect with the MCU’s (Microcontroller and etc) RXD PIN.
UART_RXD, Bluetooth serial signal receiving PIN Connect with the MCU’s (Microcontroller and etc) TXD PIN.
Mode switch input If it is input low level or connect to the air, the module is at paired or communication mode.
If it’s input high level, the module will enter to AT mode.
4|Page 3.
Sample Hardware Installation and Sample Source Code Below is the example of interfacing between Arduino UNO and PC via HC-05 Bluetooth Module.
In th...


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