Unknown user: Created page with " #include "Arduino.h" #include "uRTCLib.h" // uRTCLib rtc; uRTCLib rtc(0x68); /* I2C LCD ESP8266-Wenos D1 Mini GND GND VCC VIN SDA D2..."

2023-04-01T20:52:23Z

Created page with " #include "Arduino.h" #include "uRTCLib.h" // uRTCLib rtc; uRTCLib rtc(0x68); /* I2C LCD ESP8266-Wenos D1 Mini GND GND VCC VIN SDA D2..."

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#include "Arduino.h"
#include "uRTCLib.h"
// uRTCLib rtc;
uRTCLib rtc(0x68);
/*
I2C LCD ESP8266-Wenos D1 Mini
GND GND
VCC VIN
SDA D2
SCL D1
*/
#include <LiquidCrystal_I2C.h>

// set the LCD number of columns and rows
int lcdColumns = 16;
int lcdRows = 2;

LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);

char cMonth[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
char DoW[7][10] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};

void setup() {
Serial.begin(9600);
// delay(3000); // wait for console opening

URTCLIB_WIRE.begin();

// Comment out below line once you set the date & time.
// Following line sets the RTC with an explicit date & time
// for example to set January 13 2022 at 12:56 you would call:
// rtc.set(0, 56, 12, 5, 13, 1, 22);
// rtc.set(second, minute, hour, dayOfWeek, dayOfMonth, month, year)
// set day of week (1=Sunday, 7=Saturday)

lcd.begin( 5, 4 );// initialize LCD
lcd.init();
// turn on LCD backlight
lcd.backlight();
lcd.clear();
}

void loop() {
rtc.refresh();

lcd.setCursor(0,0);
lcd.print( DoW[rtc.dayOfWeek()] );
lcd.print(", ");
lcd.print(rtc.day());
lcd.print(' ');
// lcd.print(rtc.month());
lcd.print(cMonth[rtc.month()-1]);
lcd.print(' ');
lcd.print(2000+rtc.year());

lcd.setCursor(4,1);
print2digits(rtc.hour());
lcd.print(':');
print2digits(rtc.minute());
lcd.print(':');
print2digits(rtc.second());

delay(1000);
}

void print2digits(int number) {
if (number >= 0 && number < 10) {
lcd.write('0');
}
lcd.print(number);
}

Arduino: LCD DS1307 I2C RTC alternative - Revision history

Unknown user: Created page with " #include "Arduino.h" #include "uRTCLib.h" // uRTCLib rtc; uRTCLib rtc(0x68); /* I2C LCD ESP8266-Wenos D1 Mini GND GND VCC VIN SDA D2..."