DFR0063

I2C TWI LCD1602 Module Gadgeteer Compatible SKU DFR0063 (https://www.dfrobot.com/product-135.html) I2C 16x2 Arduino LCD Display Module Introduction This is another great I2C 16x2 LCD display (https://www.dfrobot.com/product-135.html) compatible with Gadgeteer modules from DFRobot. With limited pin resources, your project will quicly run out of resources using normal LCDs. With this I2C interface LCD module, you only need 2 lines (I2C)to display the information.If you already have I2C devices in your project, this LCD module (https://www.dfrobot.com/category130.html) actually cost no more resources at all. The adress can be set from 0x20-0x27. Fantastic for Arduino (https://www.dfrobot.com/category-35.html) or gadgeteer based projects. Specification I2C Address:0x20-0x27(0x20 default) Back lit (Blue with white char color) Supply voltage: 5V Interface:I2C/TWI x1,Gadgeteer interface x2 Adjustable contrast Size:82x35x18 mm Contrast Adjust The contrast can be adjusted by the potential-meter displayed in the following picture. Address Setting A2 A1 A0 IIC Address 0 0 0 0x20 0 0 1 0x21 0 1 0 0x22 0 1 1 0x23 1 0 0 0x24 1 0 1 0x25 1 1 0 0x26 1 1 1 0x27 0: The Jumper Cap is connected 1: The Jumper Cap is disconnected NOTE: The default address is 0x20. All the jumper caps will be connected from the factory. Connection Connection NOTE: V1.2 has a different power pinout from V1.1, please check the history version for the old connection diagram. Arduino UNO (https://www.dfrobot.com/product-610.html): connect SDA to pin A4 and SCL to pin A5 on your Arduino. Arduino Leonardo (https://www.dfrobot.com/product-698.html): connect SDA to digital pin 2 and SCL to digital pin 3 on your Arduino. Library Support Functions LiquidCrystal_I2C() //set the LCD address for a 16 chars and 2 line display init() //Initialization for the LCD clear() //clear display, set cursor position to zero home() //set cursor position to zero createChar() //Fill the first 8 CGRAM locations with custom characters setCursor() //set the position of the cursor cursor() //Turns the underline cursor on noCursor() //Turns the underline cursor off blink() //Turn on the blinking cursor noBlink() //Turn off the blinking cursor display() //Turn the display on(quickly) noDisplay() //Turn the display 0ff(quickly) backlight() //Turn the backlight on noBacklight() //Turn the backlight off scrollDisplayLeft() //Make the display scroll left without changing the RAM scrollDisplayRight() //Make the display scroll right without changing the RAM autoscroll() //This will 'right justify' text from the cursor noAutoscroll() //This will 'left justify' text from the cursor leftToRight() //This is for text that flows Left to Right rightToLeft() //This is for text that flows Right to Left Sample Code Download Sample code and library (https://raw.githubusercontent.com/DFRobot/WikiResource/master/DFR0063/LiquidCrystal_I2C.zip) //DFRobot.com //Compatible with the Arduino IDE 1.0 //Library version:1.1 #include #include LiquidCrystal_I2C lcd(0x20,16,2); // set the LCD address to 0x20 for a 16 chars and 2 line display void setup() { lcd.init(); // initialize the lcd // Print a message to the LCD. lcd.backlight(); lcd.print("Hello, world!"); } void loop() { } Sample sketch: Control the back light of the I2C LCD1602 Module Sample sketch: Control the back light of the I2C LCD1602 Module #include #include #if defined(ARDUINO) && ARDUINO >= 100 #define printByte(args) write(args); #else #define printByte(args) print(args,BYTE); #endif LiquidCrystal_I2C lcd(0x20,16,2); // set the LCD address to 0x20 for a 16 chars and 2 line display void setup(){ lcd.init(); lcd.backlight(); // initialize the lcd lcd.home(); lcd.print("Hello world..."); lcd.setCursor(0, 1); lcd.print("dfrobot.com"); } int backlightState = LOW; long previousMillis = 0; long interval = 1000; void loop(){ unsigned long currentMillis millis(); unsigned long currentMillis = millis(); if(currentMillis - previousMillis > interval) { previousMillis = currentMillis; if (backlightState == LOW) backlightState = HIGH; else backlightState = LOW; if(backlightState == HIGH) else lcd.noBacklight(); lcd.backlight(); } } If you want to use the library's own sample code, pay attention to modify the initialization statement, need to change: LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display to: LiquidCrystal_I2C lcd(0x20,16,2); // set the LCD address to 0x20 for a 16 chars and 2 line display(All jumpers should be connected\!) Because the default initialization statement is for LCD1602! Old version wiki I2C/TWI LCD1602 Module (https://www.dfrobot.com/wiki/index.php/I2C/TWI_LCD1602_Module__SKU:_DFR0063_) Projects ojects DYP-ME007 Ultrasound range finder - display distance on a I2C 2x16 LCD (http://arduino.cc/forum/index.php/topic,63302.0.html) DFshopping_car1.png Get I2C/TWI LCD1602 Module (https://www.dfrobot.com/product-135.html) from DFRobot Store or DFRobot Distributor. (https://www.dfrobot.com/index.php?route=information/distributorslogo) Turn to the Top