Arduino LCD1602 / 2004

This page is to Setup and Config LCD1602 / 2004

Hardware and Software

Hardware

LCD1602 / 2004

Software

Arduino IDE

Example : https://arduino-info.wikispaces.com/LCD-Blue-I2C

Sanki Notes

- Address : 0x27 default or A0, A1 A2 - 0x23 - 0x27

Examples

This example is Display on 1602 and 2004

- - - 1. /* YourDuino.com Example Software Sketch
      2. 16 character 2 line I2C Display
      3. Backpack Interface labelled "A0 A1 A2" at lower right.
      4. ..and
      5. Backpack Interface labelled "YwRobot Arduino LCM1602 IIC V1"
      6. MOST use address 0x27, a FEW use 0x3F
      7. terry@yourduino.com */
      8. /*-----( Import needed libraries )-----*/
      9. #include <Wire.h> // Comes with Arduino IDE
      10. // Get the LCD I2C Library here:
      11. // https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
      12. // Move any other LCD libraries to another folder or delete them
      13. // See Library "Docs" folder for possible commands etc.
      14. #include <LiquidCrystal_I2C.h>
      15. /*-----( Declare Constants )-----*/
      16. /*-----( Declare objects )-----*/
      17. // set the LCD address to 0x27 for a 16 chars 2 line display
      18. // A FEW use address 0x3F
      19. // Set the pins on the I2C chip used for LCD connections:
      20. // addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
      21. LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address
      22. /*-----( Declare Variables )-----*/
      23. //NONE
      24. void setup() /*----( SETUP: RUNS ONCE )----*/
      25. {
      26. Serial.begin(9600); // Used to type in characters
      27. lcd.begin(20,4); // initialize the lcd for 16 chars 2 lines, turn on backlight
      28. // lcd.begin(16,2); // initialize the lcd for 16 chars 2 lines, turn on backlight
      29. // ------- Quick 3 blinks of backlight -------------
      30. for(int i = 0; i< 3; i++)
      31. {
      32. lcd.backlight();
      33. delay(250);
      34. lcd.noBacklight();
      35. delay(250);
      36. }
      37. lcd.backlight(); // finish with backlight on
      38. //-------- Write characters on the display ------------------
      39. // NOTE: Cursor Position: (CHAR, LINE) start at 0
      40. lcd.setCursor(0,0); //Start at character 4 on line 0
      41. lcd.print("Hello, world!");
      42. delay(100);
      43. lcd.setCursor(0,1);
      44. lcd.print("HI!YourDuino.com");
      45. delay(100);
      46. lcd.setCursor(0,2); //Start at character 4 on line 0
      47. lcd.print("Sanki Poon");
      48. delay(100);
      49. lcd.setCursor(0,3);
      50. lcd.print("iMediaBank.com");
      51. delay(4000);
      52. // Wait and then tell user they can start the Serial Monitor and type in characters to
      53. // Display. (Set Serial Monitor option to "No Line Ending")
      54. lcd.clear();
      55. lcd.setCursor(0,0); //Start at character 0 on line 0
      56. lcd.print("Use Serial Mon");
      57. lcd.setCursor(0,1);
      58. lcd.print("Type to display");
      59. lcd.setCursor(0,2);
      60. lcd.print("Anything");
      61. lcd.setCursor(0,3);
      62. lcd.print("********");
      63. }/*--(end setup )---*/
      64. void loop() /*----( LOOP: RUNS CONSTANTLY )----*/
      65. {
      66. {
      67. // when characters arrive over the serial port...
      68. if (Serial.available()) {
      69. // wait a bit for the entire message to arrive
      70. delay(100);
      71. // clear the screen
      72. lcd.clear();
      73. // read all the available characters
      74. //lcd.setCursor(0,2);
      75. while (Serial.available() > 0) {
      76. // display each character to the LCD
      78. lcd.write(Serial.read());
      79. }
      80. }
      81. }
      82. }/* --(end main loop )-- */
      83. /* ( THE END ) */