Arduino | 14core.com

The Official Arduino UNO R3 Schematic

This Reference Design Are provided “AS IS” & “With all faults. Arduino DISCLAIMS ALL Other Warranties, Express or Implied, Regarding Products, Include but not limited to any implied warranties of merchantability or fitness for a particular purpose Arduino may make

Using Serial Port Bluetooth Module (Master/Slave) in Arduino

Bluetooth Module Board it is replacement for wired serial connection transparent usage. Can simply use to create a wireless Bluetooth connection between to micro controller or embedded projects, this Bluetooth module has specification of version 2.0 +EDR and it is

How to use the Joystick module in Arduino

This Thumb Joystick is a analog joystick controller that has X and Y axes values using 10k potentiometers which give you 2D movement by generating analog signals. This joystick has also a single push button that could be used for

Arduino Starters

The NRF24L01 Transceiver Using Arduino with Source Code

The nRF24L01 is highly integrated, Ultra Low Power (ULP) with 2Mbps Radio Frequency Transceiver IC for the 2.4Ghz ISM(Industrial, Scientific and Medical) band. With peak RX TX Currents lower than 14mA, and it has a advance power management integrated to

Introduction of ACS712 Current Sensor Module – 30A with Arduino

Reading Sensing and Controlling current flow is a requirements in a wide variety of application including, over-current protection circuits, switching mode, battery chargers, power supplies, digital watt meter and programmable current source, etc.. The ACS721 current reading module is based

Working with Ultrasonic Ranging Sensor Module on Arduino

The HC-SR04 Ultrasonic Ranging Sensor is a non contact distance measuring module device commonly use in Robotic Obstacle Avoidance. The HC SR04 has a high ranging accuracy. The measurement range can go up to 5 meter, which would be helpful

Using PIR Motion Sensor in Arduino with Source Code

Passive Infrared Sensor ( Motion Sensor) PIR Motion Sensor is a highly integrated module used for human entry detection it can easily adopt in the system. There will be a 2 adjustable potentiometer in the module board, which is any

Starter #16 Controlling a Relay Using Arduino with Source Code

What is a Relay? A Relay is a electronic operated switch, relay’s uses an electromagnet mechanical to operate the switch and provide electrical isolation between two circuits. Is this lab project we don’t need to isolate one circuit from other,

Installing drivers for Arduino Uno R3

It is important to follow the steps mentioned next to be able to use the Arduino Uno R3 and some other boards. Please check the Arduino website for up-to-date references. 1. Plug your board in and wait for Windows to

Installing drivers for Arduino Duemilanove, Nano, or Diecimilla

When you connect the board, Windows should initiate the driver installation process (if you haven’t used the computer with an Arduino board before). On Windows Vista, the driver should be automatically downloaded and installed. (Really, it works!) On Windows XP,

Starter # 11 How to use 16×2 LCD Screen with Arduino with Source Code

This tutorial will show you how to use the LCD Screen 16×2 in Arduino. Electronic Parts Required ARDUINO UNO/MEGA/PRO 1x Potentiometer ( To adjust the Brightness, Contrast of the LCD) 1x LCD Screen 1602 Jumper wire

/*
    .  .          ........ .... ..   ......      ........                       
MMMM   MMMMM    MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM                       
 MMM.MMMMMMM   MMM      MMM     .MM.MMM     MMM .........      .... ... .  . .  
MMM MMMMMMM . .MM.      MM.     MMM MM.  . MMM MMMMMMMMM       MMMM MMMMM.MM MM
MMMMMMMMMMMM. .MMM      MMM.  .MMM.MMMMMMMMM  ........    MMM MM  . M .MMMMMMMM.
MMM    .MMM     MMMMMMMM.MMMMMMM.  MM    .MMM. MMMMMMMM.  MMM .MMMM MMMM MMMMMM.
www.14core.com                                             .   ...  . .  ......
*/

int LCD1602_RS=12;   
int LCD1602_RW=11;   
int LCD1602_EN=10;   
int DB[] = { 6, 7, 8, 9};
char str1[]="Welcome to";
char str2[]="www.14core.com";
char str3[]="this is the";
char str4[]="4-bit interface";

void LCD_Command_Write(int command)
{
 int i,temp;
 digitalWrite( LCD1602_RS,LOW);
 digitalWrite( LCD1602_RW,LOW);
 digitalWrite( LCD1602_EN,LOW);

 temp=command & 0xf0;
 for (i=DB[0]; i <= 9; i++)
 {
   digitalWrite(i,temp & 0x80);
   temp <<= 1;
 }
 
 digitalWrite( LCD1602_EN,HIGH);
 delayMicroseconds(1);
 digitalWrite( LCD1602_EN,LOW);

 temp=(command & 0x0f)<<4;
 for (i=DB[0]; i <= 9; i++)
 {
   digitalWrite(i,temp & 0x80);
   temp <<= 1;
 }

 digitalWrite( LCD1602_EN,HIGH);
 delayMicroseconds(1);
 digitalWrite( LCD1602_EN,LOW);
}

void LCD_Data_Write(int dat)
{
 int i=0,temp;
 digitalWrite( LCD1602_RS,HIGH);
 digitalWrite( LCD1602_RW,LOW);
 digitalWrite( LCD1602_EN,LOW);

 temp=dat & 0xf0;
 for (i=DB[0]; i <= 9; i++)
 {
   digitalWrite(i,temp & 0x80);
   temp <<= 1;
 }

 digitalWrite( LCD1602_EN,HIGH);
 delayMicroseconds(1);
 digitalWrite( LCD1602_EN,LOW);

 temp=(dat & 0x0f)<<4;
 for (i=DB[0]; i <= 9; i++)
 {
   digitalWrite(i,temp & 0x80);
   temp <<= 1;
 }

 digitalWrite( LCD1602_EN,HIGH);
 delayMicroseconds(1);
 digitalWrite( LCD1602_EN,LOW);
}

void LCD_SET_XY( int x, int y )
{
  int address;
  if (y ==0)    address = 0x80 + x;
  else          address = 0xC0 + x;
  LCD_Command_Write(address);
}

void LCD_Write_Char( int x,int y,int dat)
{
  LCD_SET_XY( x, y );
  LCD_Data_Write(dat);
}

void LCD_Write_String(int X,int Y,char *s)
{
    LCD_SET_XY( X, Y );    //set address
    while (*s)             //write the string
    {
      LCD_Data_Write(*s);   
      s ++;
    }
}

void setup (void)
{
  int i = 0;
  for (i=6; i <= 12; i++)
   {
     pinMode(i,OUTPUT);
   }
  delay(100);
  LCD_Command_Write(0x28);
  delay(50);
  LCD_Command_Write(0x06);
  delay(50);
  LCD_Command_Write(0x0c);
  delay(50);
  LCD_Command_Write(0x80);
  delay(50);
  LCD_Command_Write(0x01);
  delay(50);

}

void loop (void)
{
   LCD_Command_Write(0x01);
   delay(50);
   LCD_Write_String(3,0,str1); //Row1, column4
   delay(50);
   LCD_Write_String(1,1,str2); //Row2, column2
   delay(5000);
   LCD_Command_Write(0x01);
   delay(50);
   LCD_Write_String(0,0,str3);
   delay(50);
   LCD_Write_String(0,1,str4);
   delay(5000);
   
}

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. . ........ .... .. ...... ........

MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM

MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . .

MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM

MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM.

MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM.

www.14core.com . ... . . ......

int LCD1602_RS=12;

int LCD1602_RW=11;

int LCD1602_EN=10;

int DB[] = { 6, 7, 8, 9};

char str1[]="Welcome to";

char str2[]="www.14core.com";

char str3[]="this is the";

char str4[]="4-bit interface";

void LCD_Command_Write(int command)

{

int i,temp;

digitalWrite( LCD1602_RS,LOW);

digitalWrite( LCD1602_RW,LOW);

digitalWrite( LCD1602_EN,LOW);

temp=command & 0xf0;

for (i=DB[0]; i <= 9; i++)

{

digitalWrite(i,temp & 0x80);

temp <<= 1;

}

digitalWrite( LCD1602_EN,HIGH);

delayMicroseconds(1);

digitalWrite( LCD1602_EN,LOW);

temp=(command & 0x0f)<<4;

for (i=DB[0]; i <= 9; i++)

{

digitalWrite(i,temp & 0x80);

temp <<= 1;

}

digitalWrite( LCD1602_EN,HIGH);

delayMicroseconds(1);

digitalWrite( LCD1602_EN,LOW);

}

void LCD_Data_Write(int dat)

{

int i=0,temp;

digitalWrite( LCD1602_RS,HIGH);

digitalWrite( LCD1602_RW,LOW);

digitalWrite( LCD1602_EN,LOW);

temp=dat & 0xf0;

for (i=DB[0]; i <= 9; i++)

{

digitalWrite(i,temp & 0x80);

temp <<= 1;

}

digitalWrite( LCD1602_EN,HIGH);

delayMicroseconds(1);

digitalWrite( LCD1602_EN,LOW);

temp=(dat & 0x0f)<<4;

for (i=DB[0]; i <= 9; i++)

{

digitalWrite(i,temp & 0x80);

temp <<= 1;

}

digitalWrite( LCD1602_EN,HIGH);

delayMicroseconds(1);

digitalWrite( LCD1602_EN,LOW);

}

void LCD_SET_XY( int x, int y )

{

int address;

if (y ==0) address = 0x80 + x;

else address = 0xC0 + x;

LCD_Command_Write(address);

}

void LCD_Write_Char( int x,int y,int dat)

{

LCD_SET_XY( x, y );

LCD_Data_Write(dat);

}

void LCD_Write_String(int X,int Y,char *s)

{

LCD_SET_XY( X, Y ); //set address

while (*s) //write the string

{

LCD_Data_Write(*s);

s ++;

}

void setup (void)

{

int i = 0;

for (i=6; i <= 12; i++)

{

pinMode(i,OUTPUT);

}

delay(100);

LCD_Command_Write(0x28);

delay(50);

LCD_Command_Write(0x06);

delay(50);

LCD_Command_Write(0x0c);

delay(50);

LCD_Command_Write(0x80);

delay(50);

LCD_Command_Write(0x01);

delay(50);

}

void loop (void)

{

LCD_Command_Write(0x01);

delay(50);

LCD_Write_String(3,0,str1); //Row1, column4

delay(50);

LCD_Write_String(1,1,str2); //Row2, column2

delay(5000);

LCD_Command_Write(0x01);

delay(50);

LCD_Write_String(0,0,str3);

delay(50);

LCD_Write_String(0,1,str4);

delay(5000);

}

Download the source code

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