#include <WiFi.h>
#include "time.h"
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* ntpServer = "pool.ntp.org";
const long gmtOffset_sec = 3600*9;
const int daylightOffset_sec = 0;
void setup() {
Serial.begin(115200);
lcd.init();
lcd.backlight();
configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
Serial.printf("Connecting to %s ", ssid);
lcd.clear();
lcd.print("Connecting to ");
lcd.setCursor(0, 1);
lcd.print(ssid);
delay(1000);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("CONNECTED");
lcd.clear();
lcd.print("CONNECTED");
delay(2000);
}
void loop() {
delay(1000);
printLocalTime();
}
void printLocalTime() {
struct tm timeinfo;
if (!getLocalTime(&timeinfo)) {
Serial.println("Failed to obtain time");
return;
}
lcd.clear();
lcd.print(&timeinfo, "%B %d %Y"); // May 15 2023
lcd.setCursor(0, 1);
lcd.print(&timeinfo, "%A %H:%M:%S"); // Monday 09:20:36
}