mohammadsohail0008
Published © GPL3+

Wireless Digital Notice Board

Notice board using Arduino and Bluetooth Module

IntermediateProtip1,422
Wireless Digital Notice Board

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
HC-05 Bluetooth Module
HC-05 Bluetooth Module
×1
Alphanumeric LCD, 16 x 2
Alphanumeric LCD, 16 x 2
×1
Single Turn Potentiometer- 10k ohms
Single Turn Potentiometer- 10k ohms
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Android device
Android device
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Circuit Diagram

Code

Code

Arduino
// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //

// Wireless Digital Notice Board  //

// By MOHD SOHAIL //





#include <LiquidCrystal.h>

LiquidCrystal lcd(4, 5, 6, 7, 8, 9);



#include <SoftwareSerial.h>

SoftwareSerial mySerial (2, 3);   //(RX, TX);



String val = "No Data";

String oldval;

String newval = "No Data";

int i = 0;



void setup() 

{

 

  lcd.begin();

  mySerial.begin(9600);

  Serial.begin(9600);

  lcd.setCursor(0, 0);

  lcd.print("    Digital    ");

  lcd.setCursor(0, 1);

  lcd.print(" Notice  Board ");

  delay(3000);

  lcd.clear();

}



void loop() 

  {

  val = mySerial.readString();

  val.trim();

  Serial.println(val);

  if(val != oldval)

  {

    newval = val;

  }

  val = oldval;

Serial.println(val);

lcd.clear();

lcd.setCursor(16, 1);

lcd.print(newval);

lcd.setCursor(16, 0);

lcd.print("Notice:");

for(int counter = 0; counter < 24; counter++)

{

lcd.scrollDisplayLeft();

delay(500);



}

}

Credits

mohammadsohail0008

mohammadsohail0008

42 projects • 31 followers

Comments

Related channels and tags
  • Android
  • Communication
  • Internet of Things