54 lines
1.2 KiB
Arduino
54 lines
1.2 KiB
Arduino
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#include <NTPClient.h>
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// change next line to use with another board/shield
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#include <ESP8266WiFi.h>
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//#include <WiFi.h> // for WiFi shield
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//#include <WiFi101.h> // for WiFi 101 shield or MKR1000
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#include <WiFiUdp.h>
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const char *ssid = "<SSID>";
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const char *password = "<PASSWORD>";
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WiFiUDP ntpUDP;
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// initialized to a time offset of 10 hours
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NTPClient timeClient(ntpUDP,"pool.ntp.org", 36000, 60000);
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// HH:MM:SS
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// timeClient initializes to 10:00:00 if it does not receive an NTP packet
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// before the 100ms timeout.
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// without isTimeSet() the LED would be switched on, although the time
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// was not yet set correctly.
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// blue LED on ESP-12F
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const int led = 2;
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const int hour = 10;
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const int minute = 0;
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void setup(){
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Serial.begin(115200);
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pinMode(led, OUTPUT);
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// led is off when pin is high
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digitalWrite(led, 1);
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay (500);
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Serial.print (".");
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}
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timeClient.begin();
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}
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void loop() {
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timeClient.update();
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Serial.println(timeClient.getFormattedTime());
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if(timeClient.isTimeSet()) {
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if (hour == timeClient.getHours() && minute == timeClient.getMinutes()) {
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digitalWrite(led, 0);
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}
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}
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delay(1000);
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}
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