Files
Arduino/NTP-Server-Client/NTP-Server-Client.ino
T
2026-04-10 15:04:38 +02:00

63 lines
1.2 KiB
Arduino

#include <ESP8266WiFi.h>
#include <time.h>
const char* ssid = "Wayne Manor";
const char* password = "einfach10zeichen!";
const char* TZ_INFO = "CET-1CEST,M3.5.0,M10.5.0/3";
void connectWiFi() {
Serial.print("Verbinde mit WLAN");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("\nVerbunden!");
Serial.print("IP: ");
Serial.println(WiFi.localIP());
}
void syncTime() {
configTime(TZ_INFO, "pool.ntp.org", "time.nist.gov");
Serial.print("Synchronisiere Zeit");
time_t now = time(nullptr);
while (now < 100000) {
delay(500);
Serial.print(".");
now = time(nullptr);
}
Serial.println("\nZeit synchronisiert!");
}
void setup() {
Serial.begin(9600);
Serial.println("\nStarte ESP8266...");
connectWiFi();
syncTime();
}
void loop() {
time_t now = time(nullptr);
struct tm* t = localtime(&now);
if (t) {
Serial.printf("%02d:%02d:%02d %02d.%02d.%04d\n",
t->tm_hour,
t->tm_min,
t->tm_sec,
t->tm_mday,
t->tm_mon + 1,
t->tm_year + 1900);
} else {
Serial.println("Fehler beim Lesen der Zeit");
}
delay(1000);
}