Overview
Things
Story

led connections
bluetooth connections

Published August 23, 2020 © GPL3+

Controlling led using HC-05 bluetooth module

Controlling and led using bluetooth

BeginnerFull instructions provided1,964

Controlling led using HC-05 bluetooth module

Things used in this project

Hardware components

Arduino UNO

Resistor 220 ohm

LED (generic)

Jumper wires (generic)

HC-05 Bluetooth Module

Software apps and online services

arduino bluetooth controller

Story

In this project, I am going to show you how to control an led using a bluetooth.It is a very simple project the connections are as follows :

led connections

led cathod : ground pin

led anode : digital pin 13

bluetooth connections

RXD : arduino pin tx

tXD : arduino pin rx

vcc : 5 volts

gnd :gnd

1 / 4

once you have uploaded the code you need to go to play store and download Arduino bluetooth controller app.Pleasefollowthebelowinstructions.

After you have downloaded it you need to open the app and it will start searching for HC-05 bluetooth module

.Once you see it click on it and then select switch mode

then you have to configure it. green as 1 and red as 0.

NOTE :you will find the settings or configure button on the top right corner.

now you control your led using a mobile app.

If you get an error message like this then remove the txd and rxd pin of the bluetooth module from the Arduino and then upload the code again and connect the pins to its respective places

Code

shematic for led bluetooth control

char Incoming_value = 0;
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(13,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (Serial.available() > 0)
    {
      Incoming_value = Serial.read();
      Serial.print(Incoming_value);
      Serial.print("/n");
      if (Incoming_value == '1')
        digitalWrite(13,HIGH);
      else if(Incoming_value == '0')
        digitalWrite(13,LOW);
    }
}

Credits

brillianttechnoz

3 projects • 3 followers

Controlling led using HC-05 bluetooth module

Things used in this project

Hardware components

Software apps and online services

Story

led connections

bluetooth connections

Schematics

shematic for led bluetooth control

Code

shematic for led bluetooth control

Credits

brillianttechnoz

Comments

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Controlling led using HC-05 bluetooth module

Controlling led using HC-05 bluetooth module

Things used in this project

Hardware components

Software apps and online services

Story

led connections

bluetooth connections

Schematics

shematic for led bluetooth control

Code

shematic for led bluetooth control

Credits

brillianttechnoz

Comments

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