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August 16, 2019 09:49
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/* YourDuino.com Example Software Sketch | |
20 character 4 line I2C Display | |
Backpack Interface labelled "YwRobot Arduino LCM1602 IIC V1" | |
Connect Vcc and Ground, SDA to A4, SCL to A5 on Arduino | |
terry@yourduino.com */ | |
/*-----( Import needed libraries )-----*/ | |
#include <Wire.h> // Comes with Arduino IDE | |
// Get the LCD I2C Library here: | |
// https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads | |
// Move any other LCD libraries to another folder or delete them | |
// See Library "Docs" folder for possible commands etc. | |
#include <LiquidCrystal_I2C.h> | |
/*-----( Declare Constants )-----*/ | |
/*-----( Declare objects )-----*/ | |
// set the LCD address to 0x27 for a 20 chars 4 line display | |
// Set the pins on the I2C chip used for LCD connections: | |
// addr, en,rw,rs,d4,d5,d6,d7,bl,blpol | |
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address | |
/*-----( Declare Variables )-----*/ | |
void setup() /*----( SETUP: RUNS ONCE )----*/ | |
{ | |
Serial.begin(9600); // Used to type in characters | |
lcd.begin(20,4); // initialize the lcd for 20 chars 4 lines, turn on backlight | |
int time = 31080; | |
int min = time/60; | |
int hour = min/60 - min; | |
// ------- Quick 3 blinks of backlight ------------- | |
for(int i = 0; i< 3; i++) | |
{ | |
lcd.backlight(); | |
delay(250); | |
lcd.noBacklight(); | |
delay(250); | |
} | |
lcd.backlight(); // finish with backlight on | |
}/*--(end setup )---*/ | |
void loop() /*----( LOOP: RUNS CONSTANTLY )----*/ | |
{ | |
//-------- Write characters on the display ------------------ | |
// NOTE: Cursor Position: Lines and Characters start at 0 | |
lcd.clear(); | |
lcd.setCursor(3,0); //Start at character 4 on line 0 | |
lcd.print("Papa"); | |
delay(1000); | |
lcd.setCursor(0,1); | |
lcd.print("Dinner is ready"); | |
delay(1000); | |
lcd.clear(); | |
lcd.setCursor(0,0); | |
lcd.print("Kuki"); | |
lcd.setCursor(0,1); | |
delay(2000); | |
lcd.print("called you"); | |
delay(1000); | |
// Wait and then tell user they can start the Serial Monitor and type in characters to | |
// Display. (Set Serial Monitor option to "No Line Ending") | |
}/* --(end main loop )-- */ |
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