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: 0x20
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
For 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:
- 1 X Blue Display IIC/I2C/TWI/SPI Serial Interface2004 20X4 Character LCD Module
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