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#include <user_settings.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <ezTime.h>
#include <ArduinoJson.h>
Timezone CopenhagenTime;
WiFiClient client; // or WiFiClientSecure for HTTPS
HTTPClient http;
unsigned long aPIPreviousMillis = 0;
const long aPIInterval = 600000; // call API every 10 minutes
String weatherText = "";
String previousOutputText = "";
String weatherDescription(int code, bool isDay) {
switch(code) {
case 0:
if (isDay){
return "Sunny";
} else {
return "Clear";
}
break;
case 1:
if (isDay){
return "Mainly Sunny";
} else {
return "Mainly Clear";
}
break;
case 2:
return "Partly Cloudy";
break;
case 3:
return "Cloudy";
break;
case 45:
return "Foggy";
break;
case 48:
return "Rime Fog";
break;
case 51:
return "Light Drizzle";
break;
case 53:
return "Drizzle";
break;
case 55:
return "Heavy Drizzle";
break;
case 56:
return "Light Freezing Drizzle";
break;
case 57:
return "Freezing Drizzle";
break;
case 61:
return "Light Rain";
break;
case 63:
return "Rain";
break;
case 65:
return "Heavy Rain";
break;
case 66:
return "Light Freezing Rain";
break;
case 67:
return "Freezing Rain";
break;
case 71:
return "Light Snow";
break;
case 73:
return "Snow";
break;
case 75:
return "Heavy Snow";
break;
case 77:
return "Snow Grains";
break;
case 80:
return "Light Showers";
break;
case 81:
return "Showers";
break;
case 82:
return "Heavy Showers";
break;
case 85:
return "Light Snow Showers";
break;
case 86:
return "Snow Showers";
break;
case 95:
return "Thunderstorm";
break;
case 96:
return "Light Thunderstorms With Hail";
break;
case 99:
return "Thunderstorm With Hail";
break;
default:
return "Unkown";
break;
}
}
void callAPI(){
// Send request
http.useHTTP10(true);
// https://open-meteo.com/en/docs?hourly=&timezone=Europe%2FBerlin&latitude=55.6759&longitude=12.5655¤t=is_day,temperature_2m,wind_speed_10m&forecast_days=1&daily=weather_code
http.begin(client, "http://api.open-meteo.com/v1/forecast?latitude=55.6759&longitude=12.5655&daily=weather_code¤t=is_day,temperature_2m,wind_speed_10m&timezone=Europe%2FBerlin&forecast_days=1");
http.GET();
// Parse response
DynamicJsonDocument weather(2048);
DeserializationError error = deserializeJson(weather, http.getStream());
if (error) {
Serial.print(F("deserializeJson() failed: "));
Serial.println(error.f_str());
}
// Temperature
String temperature = weather["current"]["temperature_2m"].as<String>();
int tempDotIndex = temperature.indexOf('.');
if (tempDotIndex > -1) {
temperature = temperature.substring(0, tempDotIndex); // Take the part before the decimal point
}
weatherText = temperature;
weatherText += "C ";
// Weather description
int weather_code = weather["daily"]["weather_code"][0];
bool weather_is_day = weather["current"]["is_day"].as<bool>();
weatherText += weatherDescription(weather_code, weather_is_day) + " ";
// Wind speed
String windSpeed = weather["current"]["wind_speed_10m"].as<String>();
int windDotIndex = windSpeed.indexOf('.');
if (windDotIndex > -1) {
windSpeed = windSpeed.substring(0, windDotIndex); // Take the part before the decimal point
}
weatherText += windSpeed;
weatherText += "km/h";
// Disconnect
http.end();
}
void setup() {
Serial.begin(9600);
Serial.write(0x0C); // Clear display
Serial.print("VFD display\n");
Serial.print("Starting\n");
WiFi.setHostname(HOSTNAME);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.write(0x0C); // Clear display
Serial.printf("Hostname: %s\n", HOSTNAME);
Serial.printf("Connecting to: %s\n", WIFI_SSID);
while (WiFi.status() != WL_CONNECTED)
{
delay(1000);
Serial.print('.');
}
Serial.write(0x0C); // Clear display
Serial.println("Connected, IP address: ");
Serial.println(WiFi.localIP());
delay(1000);
waitForSync();
CopenhagenTime.setLocation("Europe/Copenhagen");
Serial.write(0x0C); // Clear display
callAPI();
}
void loop() {
String outputText = "";
if (millis() - aPIPreviousMillis >= aPIInterval) {
aPIPreviousMillis = millis();
callAPI();
}
outputText = weatherText + "\n\r";
// Get Unix epoch timestamp
/*char buffer [3];
sprintf(buffer,"%03d",ms());
String milliEpoch = String(now()) + buffer;
String truncatedEpoch = milliEpoch.substring(0, 10);
Serial.print(truncatedEpoch);
Serial.print(" ");*/
// https://github.com/ropg/ezTime#getting-date-and-time
// 16:36:15 Sat 16 Aug
String time_formatted = CopenhagenTime.dateTime("H:i:s D d M");
outputText += time_formatted;
if (outputText != previousOutputText)
{
Serial.println(outputText);
previousOutputText = outputText;
}
events(); // Run NTP
}
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