From 93914417e61a886debd2923e025af2d9536bab26 Mon Sep 17 00:00:00 2001
From: "user@node5.net" <user@node5.net>
Date: Sun, 15 Feb 2026 00:44:46 +0100
Subject: API call - Weather

-2C Cloudy 5km/h
00:34:46 Sun 15 Feb
---
 src/main.cpp | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 166 insertions(+), 4 deletions(-)

(limited to 'src/main.cpp')

diff --git a/src/main.cpp b/src/main.cpp
index 021d0e7..4809d0f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,9 +1,160 @@
 #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 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&current=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&current=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);
@@ -33,20 +184,31 @@ void setup() {
 	CopenhagenTime.setLocation("Europe/Copenhagen");
 
   Serial.write(0x0C); // Clear display
+  callAPI();
 }
 
 void loop() {
+  if (millis() - aPIPreviousMillis >= aPIInterval) {
+    aPIPreviousMillis = millis();
+    callAPI();
+  }
+
   // Get Unix epoch timestamp
-  char buffer [3];
+  /*char buffer [3];
   sprintf(buffer,"%03d",ms());
   String milliEpoch = String(now()) + buffer;
-  Serial.println(milliEpoch);
+  String truncatedEpoch = milliEpoch.substring(0, 10);
+  Serial.print(truncatedEpoch);
+  Serial.print(" ");*/
+
+  Serial.print(weatherText);
+  Serial.println();
 
   delay(50);
   // https://github.com/ropg/ezTime#getting-date-and-time
-  // 16;36;15 Sat 16 Aug 33
+  // 16:36:15 Sat 16 Aug
 	String time_formatted = CopenhagenTime.dateTime("H:i:s D d M");
   Serial.println(time_formatted);
 
-  events(); // Needed to update time continuously
+  events(); // Run NTP
 }
-- 
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