एलसीडी को Arduino से कैसे कनेक्ट करें

/*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "Hello World!" to LCD
  /*****************************************************/
void Hello_World() {
  SPI_Out(0x48); // H
  SPI_Out(0x65); // E
  SPI_Out(0x6C); // l
  SPI_Out(0x6C); // l
  SPI_Out(0x6F); // o
  SPI_Out(0x11); // Blank
  SPI_Out(0x57); // W
  SPI_Out(0x6f); // o
  SPI_Out(0x72); // r
  SPI_Out(0x6c); // l
  SPI_Out(0x64); // d
  SPI_Out(0x21); // !
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Cursor(0);      //turns off blinking cursor
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Hello_World();      //display "Hello World!"
}
void loop() {
}
	

/*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays text in row one and row two of LCD.
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition 
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Write "First Line" to row one on LCD
  /*****************************************************/
void Send_First_Line_Text() {
  SPI_Out(0x46); // F
  SPI_Out(0x69); // i
  SPI_Out(0x72); // r
  SPI_Out(0x73); // s
  SPI_Out(0x74); // t
  SPI_Out(0x20); // blank space
  SPI_Out(0x6c); // l
  SPI_Out(0x69); // i
  SPI_Out(0x6e); // n
  SPI_Out(0x65); // e
}
/*****************************************************
   Write "Second Line" to row two on LCD
  /*****************************************************/
void Send_Second_Line_Text() {
  SPI_Out(0x53); // S
  SPI_Out(0x65); // e
  SPI_Out(0x63); // c
  SPI_Out(0x6f); // o
  SPI_Out(0x6e); // n
  SPI_Out(0x64); // d
  SPI_Out(0x20); // blank space
  SPI_Out(0x6c); // l
  SPI_Out(0x69); // i
  SPI_Out(0x6e); // n
  SPI_Out(0x65); // e
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Row(1);
  Send_First_Line_Text();       //writes to first line of display
  Set_Row(2);
  Send_Second_Line_Text();      //writes to second line of display
  delay(1000);
}
void loop() {
}
	

/*****************************************************
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3.
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
  /*****************************************************/
void Part_Number() {
  Set_Row(1);
  SPI_Out(0x4e); // N
  SPI_Out(0x48); // H
  SPI_Out(0x44); // D
  SPI_Out(0xb0); // -
  SPI_Out(0x30); // 0
  SPI_Out(0x32); // 2
  SPI_Out(0x31); // 1
  SPI_Out(0x36); // 6
  SPI_Out(0x4b); // K
  SPI_Out(0x33); // 3
  SPI_Out(0x5a); // Z
  SPI_Out(0xb0); // -
  SPI_Out(0x4e); // N
  SPI_Out(0x53); // S
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  Set_Row(2);
  SPI_Out(0x42); // B
  SPI_Out(0x42); // B
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  SPI_Out(0x56); // V
  SPI_Out(0x33); // 3
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Cursor(0);      //turns off blinking cursor
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
void loop() {
}
	

/*****************************************************
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3 with cursor on. 
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
   delay(500) = 500 Milliseconds
  /*****************************************************/
void Part_Number() {
  Set_Row(1);
  SPI_Out(0x4e); // N
  delay(500);
  SPI_Out(0x48); // H
  delay(500);
  SPI_Out(0x44); // D
  delay(500);
  SPI_Out(0xb0); // -
  delay(500);
  SPI_Out(0x30); // 0
  delay(500);
  SPI_Out(0x32); // 2
  delay(500);
  SPI_Out(0x31); // 1
  delay(500);
  SPI_Out(0x36); // 6
  delay(500);
  SPI_Out(0x4b); // K
  delay(500);
  SPI_Out(0x33); // 3
  delay(500);
  SPI_Out(0x5a); // Z
  delay(500);
  SPI_Out(0xb0); // -
  delay(500);
  SPI_Out(0x4e); // N
  delay(500);
  SPI_Out(0x53); // S
  delay(500);
  SPI_Out(0x57); // W
  delay(500);
  SPI_Out(0xb0); // -
  Set_Row(2);
  delay(500);
  SPI_Out(0x42); // B
  delay(500);
  SPI_Out(0x42); // B
  delay(500);
  SPI_Out(0x57); // W
  delay(500);
  SPI_Out(0xb0); // -
  delay(500);
  SPI_Out(0x56); // V
  delay(500);
  SPI_Out(0x33); // 3
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(1);      //turns on blinking cursor
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
void loop() {
}
	

/*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3 while shifting to the right with a blinking cursor. 
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
  /*****************************************************/
void Part_Number() {
    Set_Row(1);
  SPI_Out(0x4e); // N
  SPI_Out(0x48); // H
  SPI_Out(0x44); // D
  SPI_Out(0xb0); // -
  SPI_Out(0x30); // 0
  SPI_Out(0x32); // 2
  SPI_Out(0x31); // 1
  SPI_Out(0x36); // 6
  SPI_Out(0x4b); // K
  SPI_Out(0x33); // 3
  SPI_Out(0x5a); // Z
  SPI_Out(0xb0); // -
  SPI_Out(0x4e); // N
  SPI_Out(0x53); // S
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  Set_Row(2);
  SPI_Out(0x42); // B
  SPI_Out(0x42); // B
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  SPI_Out(0x56); // V
  SPI_Out(0x33); // 3
}
/*****************************************************
   Set Shifting mode
   Mode = 0 Move display one place to the left
   Mode = 1 Move display one place to the right
   delay(500) = 500 Milliseconds
  /*****************************************************/
void Set_Shift(int mode) {
  SPI_Out(0xfe);      //prefix command
  if (mode == 0) {
    SPI_Out(0x55);    //Move display one place to the left
  }
  else if (mode == 1) {
    SPI_Out(0x56);    //Move display one place to the right
  }
  delay(500);
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(1);      //turns on blinking cursor
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
/*****************************************************
     Loop function
  /*****************************************************/
void loop() {
  Set_Shift(1);     //shift display to the right
}
	

/*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3 while shifting to the right.  
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
  /*****************************************************/
void Part_Number() {
    Set_Row(1);
  SPI_Out(0x4e); // N
  SPI_Out(0x48); // H
  SPI_Out(0x44); // D
  SPI_Out(0xb0); // -
  SPI_Out(0x30); // 0
  SPI_Out(0x32); // 2
  SPI_Out(0x31); // 1
  SPI_Out(0x36); // 6
  SPI_Out(0x4b); // K
  SPI_Out(0x33); // 3
  SPI_Out(0x5a); // Z
  SPI_Out(0xb0); // -
  SPI_Out(0x4e); // N
  SPI_Out(0x53); // S
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  Set_Row(2);
  SPI_Out(0x42); // B
  SPI_Out(0x42); // B
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  SPI_Out(0x56); // V
  SPI_Out(0x33); // 3
}
/*****************************************************
   Set Shifting mode
   Mode = 0 Move display one place to the left
   Mode = 1 Move display one place to the right
   delay(500) = 500 Milliseconds
  /*****************************************************/
void Set_Shift(int mode) {
  SPI_Out(0xfe);      //prefix command
  if (mode == 0) {
    SPI_Out(0x55);    //Move display one place to the left
  }
  else if (mode == 1) {
    SPI_Out(0x56);    //Move display one place to the right
  }
  delay(500);
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(0);      //turns off blinking cursor
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
/*****************************************************
     Loop function
  /*****************************************************/
void loop() {
  Set_Shift(1);     //shift display to the right
}
	

    /*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3 while changing the contrast.
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_Out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_Out(0xFE);              //prefix command
  SPI_Out(0x52);              //contrast command
  SPI_Out(0x32);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x53);             //backlight command
  SPI_Out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_Out(0xFE);             //prefix command
  SPI_Out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_Out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_Out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_Out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_Out(0xfe);      //prefix command
  SPI_Out(0x45);      //set cursor command
  if (line == 1) {
    SPI_Out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_Out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
  /*****************************************************/
void Part_Number() {
  Set_Row(1);
  SPI_Out(0x4e); // N
  SPI_Out(0x48); // H
  SPI_Out(0x44); // D
  SPI_Out(0xb0); // -
  SPI_Out(0x30); // 0
  SPI_Out(0x32); // 2
  SPI_Out(0x31); // 1
  SPI_Out(0x36); // 6
  SPI_Out(0x4b); // K
  SPI_Out(0x33); // 3
  SPI_Out(0x5a); // Z
  SPI_Out(0xb0); // -
  SPI_Out(0x4e); // N
  SPI_Out(0x53); // S
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  Set_Row(2);
  SPI_Out(0x42); // B
  SPI_Out(0x42); // B
  SPI_Out(0x57); // W
  SPI_Out(0xb0); // -
  SPI_Out(0x56); // V
  SPI_Out(0x33); // 3
}
/*****************************************************
  Function to:
    - change contrast from highest --> lowest
    - change contrast from lowest  --> highest
  delay(100) = 100 Milliseconds
  /*****************************************************/
void Contrast_Cycle() {
  for (int x = 50; x >= 0; x--) {
    SPI_Out(0xFE);             //High to Low contrast loop
    SPI_Out(0x52);
    SPI_Out(x);
    delay(100);
  }
  for (int x = 0; x <= 50; x++) {
    SPI_Out(0xFE);             //Low to High contrats loop
    SPI_Out(0x52);
    SPI_Out(x);
    delay(100);
  }
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(0);      //turns off blinking cursor
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
/*****************************************************
     Loop function
  /*****************************************************/
void loop() {
  Contrast_Cycle(); //cycle through contrast
}
	

        /*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays the part number: NHD-0216K3Z-NSW-BBW-V3 while changing the backlight. 
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_OUT(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_OUT(0xFE);              //prefix command
  SPI_OUT(0x52);              //contrast command
  SPI_OUT(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_OUT(0xFE);             //prefix command
  SPI_OUT(0x53);             //backlight command
  SPI_OUT(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_OUT(0xFE);             //prefix command
  SPI_OUT(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_OUT(0xfe);          //prefix command
  if (mode == 0) {
    SPI_OUT(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_OUT(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_OUT(0xfe);      //prefix command
  SPI_OUT(0x45);      //set cursor command
  if (line == 1) {
    SPI_OUT(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_OUT(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "NHD-0216K3Z-NSW-BBW-V3" to LCD
  /*****************************************************/
void Part_Number() {
    Set_Row(1);
  SPI_OUT(0x4e); // N
  SPI_OUT(0x48); // H
  SPI_OUT(0x44); // D
  SPI_OUT(0xb0); // -
  SPI_OUT(0x30); // 0
  SPI_OUT(0x32); // 2
  SPI_OUT(0x31); // 1
  SPI_OUT(0x36); // 6
  SPI_OUT(0x4b); // K
  SPI_OUT(0x33); // 3
  SPI_OUT(0x5a); // Z
  SPI_OUT(0xb0); // -
  SPI_OUT(0x4e); // N
  SPI_OUT(0x53); // S
  SPI_OUT(0x57); // W
  SPI_OUT(0xb0); // -
  Set_Row(2);
  SPI_OUT(0x42); // B
  SPI_OUT(0x42); // B
  SPI_OUT(0x57); // W
  SPI_OUT(0xb0); // -
  SPI_OUT(0x56); // V
  SPI_OUT(0x33); // 3
}
/*****************************************************
  Function to:
    - change backlight from highest --> lowest
    - change backlight from lowest  --> highest
  delay(500) = 500 Milliseconds
  /*****************************************************/
void Backlight_loop() {
  for (int x = 8; x >= 0; x--) {
    SPI_OUT(0xFE);              //High to Low Backlight loop
    SPI_OUT(0x53);
    SPI_OUT(x);
    delay(500);
  }
  for (int x = 0; x <= 8; x++) {
    SPI_OUT(0xFE);              //Low to High Backlight loop
    SPI_OUT(0x53);
    SPI_OUT(x);
    delay(500);
  }
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(0);      //turns off blinking cursor
  Part_Number();      //display "NHD-0216K3Z-NSW-BBW-V3"
}
/*****************************************************
     Loop function
  /*****************************************************/
void loop() {
  Backlight_loop();   //High to Low Backlight loop
}
	

        /*****************************************************
  This code was written for the Arduino UNO using SPI Interface.
  This code displays the font table characters. 
  /*  SPI Wiring Reference for: NHD-0216K3Z-NSW-BBW-V3
  ---------------------------
  LCD         |   Arduino
  ---------------------------
  1(SPISS)  --> 12
  2(SDO)    --> No Connect
  3(SCK)    --> 10
  4(SDA)    --> 11
  5(VSS)    --> Ground
  6(VDD)    --> 5V
*/
/*****************************************************
   Arduino pin definition
  /*****************************************************/
#define SPISS_PIN   12
#define SDA_PIN     11
#define SCK_PIN     10
/*****************************************************
   SPI function to send command and data.
   For more information on SPI please visit our Support Center
  /*****************************************************/
void SPI_out(unsigned char a) {
  digitalWrite(SPISS_PIN, LOW);
  for (int n = 0; n < 8; n++) {
    if ((a & 0x80) == 0x80) {
      digitalWrite(SDA_PIN, HIGH);
      delayMicroseconds(200);
    }
    else {
      digitalWrite(SDA_PIN, LOW);
    }
    delayMicroseconds(200);
    a = a << 1;
    digitalWrite(SCK_PIN, LOW);
    digitalWrite(SCK_PIN, HIGH);
    delayMicroseconds(200);
  }
  digitalWrite(SCK_PIN, HIGH);
  delayMicroseconds(200);
  digitalWrite(SPISS_PIN, HIGH);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(SPISS_PIN, OUTPUT);
  pinMode(SCK_PIN, OUTPUT);
  pinMode(SDA_PIN, OUTPUT);
}
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  SPI_out(0xFE);              //prefix command
  SPI_out(0x52);              //contrast command
  SPI_out(0x28);              //set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  SPI_out(0xFE);             //prefix command
  SPI_out(0x53);             //backlight command
  SPI_out(0x08);             //set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_Display() {
  SPI_out(0xFE);             //prefix command
  SPI_out(0x51);             //clear display command
  delayMicroseconds(1500);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  SPI_out(0xfe);          //prefix command
  if (mode == 0) {
    SPI_out(0x4c);        //Blinking cursor off
  }
  else if (mode == 1) {
    SPI_out(0x4b);        //Blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Set Row address
   Line = 1 sets for first row
   Line = 2 sets for second row
  /*****************************************************/
void Set_Row(int line) {
  SPI_out(0xfe);      //prefix command
  SPI_out(0x45);      //set cursor command
  if (line == 1) {
    SPI_out(0x00);    //cursor position: row one, column one
  }
  else if (line == 2) {
    SPI_out(0x40);    //cursor position: row two, column one
  }
  delayMicroseconds(100);
}
/*****************************************************
  Display font characters
    -change the row address every 16 characters displayed
    -used Clear_Display() function to clear the display
     and change the row to the first row
  delay(500) = 500 Milliseconds
  /*****************************************************/
void Font_Table_Characters() {
  Clear_Display();
  for (int i = 0; i < 64; i++) {
    if (i == 16 || i == 48) {
      Set_Row(2);
    }
    else if (i == 32 || i == 64) {
      Clear_Display();
      if (i == 64) {
        i = 0;
      }
    }
    SPI_out(i + 32);
    delay(500);
  }
}
/*****************************************************
     Main function
  /*****************************************************/
void setup() {
  Set_Pins();         //set IO ports
  Set_Contrast();     //set display contrast
  Set_Backlight();    //set display backlight
  Clear_Display();    //clear display
  Set_Cursor(0);      //turns off blinking cursor
}
/*****************************************************
     Loop function
  /*****************************************************/
void loop() {
  Font_Table_Characters();  //Display font characters
}
	

    /***************************************************** यह कोड Arduino UNO के लिए RS-232 इंटरफ़ेस का उपयोग करके लिखा गया था। /* RS-232 वायरिंग संदर्भ: NHD-0216K3Z-NSW-BBW-V3
--------------------------- एलसीडी | Arduino --------------------------- 1(RX) --> 7 2(VSS) --> ग्राउंड 3(VDD) --> 5V */ #define P1 7 //RX वह पिन जिस पर सीरियल डेटा प्राप्त करना है। /***************************************************** कमांड और डेटा के लिए RS-232 सेटअप। RS-232 के बारे में अधिक जानकारी के लिए कृपया हमारे सहायता केंद्र पर जाएँ /*****************************************************/ #include 
#define RxPin P1
SoftwareSerial NHD_LCD = SoftwareSerial(P1, RxPin);
/*****************************************************
   Set LCD Contrast
  /*****************************************************/
void Set_Contrast() {
  NHD_LCD.write(0xFE);  //Prefix command
  NHD_LCD.write(0x52);  //Contrast command
  NHD_LCD.write(0x28);  //Set contrast value
  delayMicroseconds(500);
}
/*****************************************************
   Clear LCD
  /*****************************************************/
void Clear_display() {
  NHD_LCD.write(0xFE);  //Prefix command
  NHD_LCD.write(0x51);  //Clear Display
  delayMicroseconds(1500);
}
/*****************************************************
   Set Arduino UNO IO ports as Output mode
  /*****************************************************/
void Set_Pins() {
  pinMode(RxPin, OUTPUT);
}
/*****************************************************
   Set LCD Backlight
  /*****************************************************/
void Set_Backlight() {
  NHD_LCD.write(0xFE);  //prefix command
  NHD_LCD.write(0x53);  //Backlight command
  NHD_LCD.write(0x08);  //Set backlight value
  delayMicroseconds(100);
}
/*****************************************************
   Set cursor
   Mode = 0 sets Blinking cursor off
   Mode = 1 sets Blinking cursor on
  /*****************************************************/
void Set_Cursor(int mode) {
  NHD_LCD.write(0xFE);  //Prefix command
  if (mode == 0) {
    NHD_LCD.write(0x4c);  //Turn blinking cursor off
  } else if (mode == 1) {
    NHD_LCD.write(0x4b);  //Turn blinking cursor on
  }
  delayMicroseconds(100);
}
/*****************************************************
   Write "Hello World!" to LCD
  /*****************************************************/
void Hello_World() {
  NHD_LCD.write(0x48);  // H
  NHD_LCD.write(0x65);  // e
  NHD_LCD.write(0x6C);  // l
  NHD_LCD.write(0x6C);  // l
  NHD_LCD.write(0x6F);  // o
  NHD_LCD.write(0x11);  // Blank
  NHD_LCD.write(0x57);  // W
  NHD_LCD.write(0x6f);  // o
  NHD_LCD.write(0x72);  // r
  NHD_LCD.write(0x6c);  // l
  NHD_LCD.write(0x64);  // d
  NHD_LCD.write(0x21);  // !
}
/*****************************************************
  Main function
/*****************************************************/
void setup() {
  NHD_LCD.begin(9600);  //Sets 9600 Baud Rate the display can receive and transmit data at a rate of 9600 bits per second by default.
  delay(15);
  Set_Pins();       //Set IO ports
  Set_Cursor(0);    //Turns off blinking cursor
  Set_Contrast();   //Set display Contrast
  Set_Backlight();  //Set display Backlight
  Clear_display();  //Clear display
  Hello_World();    //Display "Hello Wolrd!"
}
void loop() {
}