Description

• Specifications:
  This is IIC Serial 20X4 LCD module . With this I2C interface LCD module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
  Specification:
  Interface: I2C
  I2C Address: 0x27
  Sofware version :0022
  
  SDA (DATA) -> analog input pin 4
  SCL (CLOCK) -> analog input pin 5
  
  
  
  Pin Definition : GND、VCC、SDA、SCL
  
  Back lit (Blue with white char color)
  
  Supply voltage: 5V
  
  Pcb Size : 60mm×99mm
  
  Contrast Adjust : Potentiometer
  
  Backlight Adjust : Jumper
  
  
  
  2004 LiquidCrystal_I2C
  
  Arduino Test Code：
  
  #include <Wire.h>
  #include <LiquidCrystal_I2C.h>
  
  LiquidCrystal_I2C lcd(0x27,16,2); //set the LCD address to 0x27 for a 16 chars and 2 line display
  
  void setup()
  {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("b2cqshop");
  lcd.setCursor(0, 1);
  lcd.print("Voltage: ");
  lcd.setCursor(13, 1);
  lcd.print("V");
  }
  void loop()
  {
  int val;
  float temp;
  val=analogRead(0);
  temp=val/4.092;
  val=(int)temp;//
  lcd.setCursor(9, 1);
  lcd.print(0x30+val/100,BYTE);
  lcd.print(0x30+(val%100)/10,BYTE);
  lcd.print('.');
  lcd.print(0x30+val%10,BYTE);
  delay(100);
  }
  
  
      
• Package included:
  
  1x Blue Arduino IIC/I2C/TWI Serial LCD