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Hm 10 Bluetooth-Sending and Recieving the data using Ardunio

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This tutorial of Robo India explains how to send and receive the data on Bluetooth terminal(Android) using Arduino.

1. Introduction:

This tutorial explains how to send and receive the data on bluetooth devices using HC-10 bluetooth module.

2. Requirement:

2.1 Hardware and Software Required:

  1. HM-10 Bluetooth Module
  2. Arduino Uno
  3. Arduino IDE 1.6.2

Users can buy this device online from Robo India Shop: https://roboindia.com/store/bluetooth-hm10

3.How to connect HM-10 bluetooth module with Arduino Uno

  1. VCC to 3.3V or 5V
  2. GND to GND
  3. TX to digital pin 8
  4. RX to digital pin 9

4. Program for HM-10 Bluetooth Module

Connect the module to Arduino Uno and upload the program given below

You may download this code (Arduino Code) from here.

#include <SoftwareSerial.h>
SoftwareSerial mySerial(8,9);
void setup()
{
mySerial.begin(9600);   
Serial.begin(9600);   
delay(100);
}
void loop()
{
if (Serial.available()>0)
mySerial.write(Serial.read());
if (mySerial.available()>0)
Serial.write(mySerial.read());
}

Note:If the user want to access the HM-10 module using AT commands,upload the above code and open the serial monitor.Type the AT commands in serial monitor.For example,type AT,you will get a response OK.

5.Application on Phone:

The user download this android application called BLE Scanner

1.Download the BLE Scanner in your android phone

2. Pair your phone with MLT-BT05. for doing this go to Settings->Bluetooth->Scan device->select MLT-BT05 and pair it. Pass code to pair is ‘123456789’.

3. Than open the application in your mobile.Scan and connect the bluetooth module.

4. After the module has been connected,three lists will be shown.The user need to open the custom service.

5. The custom service has three icons which are R for Read,W for Write and N for Notify.

6. Now open the serial monitor and type the text which you want to send.Press N icon in the app to view the text sent via serial monitor. 

7. To send data via the app,the user need to press the W icon.Type the text and send.The text will be displayed in the serial monitor.

If you have any query please write us at info@roboindia.com

Thanks and Regards
Content Development Team 
Robo India
https://roboindia.com

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