v2.8.0: Weather icon in header
Adds a small weather icon in the header, right where the old camera button used to be. Shows current conditions (sun, cloud, sun-behind-cloud, rain, snow, thunderstorm) for whichever location is currently active, including active location presets, so switching to e.g. Milan shows Milan's weather. Powered by the free Open-Meteo API (no API key needed), refreshed automatically every 10 minutes in the background, or immediately after switching to a different location preset. Icons are drawn entirely with TFT_eSPI basic shapes (circles, lines), no image files or extra fonts needed. The initial implementation failed to parse Open-Meteo's response (ArduinoJson "InvalidInput") because the API replies with Transfer-Encoding: chunked and streaming directly from http.getStream() didn't reassemble the chunks correctly. Fixed by collecting the full body via http.getString() first, then parsing that. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
@@ -6,7 +6,7 @@ namespace Config {
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// CLAUDE.md-Workflow "Standard-Workflow: Push & Release") - erscheint
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// im Info-Screen (Menue > System > Info) und muss zum jeweiligen
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// Git-Tag passen.
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constexpr const char* APP_VERSION = "2.7.5";
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constexpr const char* APP_VERSION = "2.8.0";
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// Display-Helligkeit (Menue > System > Helligkeit), in Prozent.
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// MIN bewusst nicht 0 - ein komplett dunkles Display koennte sonst wie
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@@ -40,6 +40,12 @@ namespace Config {
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constexpr uint32_t FETCH_INTERVAL_MS = 8000;
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constexpr uint32_t HTTP_TIMEOUT_MS = 6000;
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// Wetter-Icon im Header (siehe weather.cpp) - deutlich seltener
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// abgefragt als die ADS-B-Daten, das Wetter aendert sich nicht
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// minuetlich und die kostenlose Open-Meteo-API soll nicht unnoetig oft
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// belastet werden.
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constexpr uint32_t WEATHER_FETCH_INTERVAL_MS = 600000; // 10 Minuten
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constexpr float DEFAULT_PROXIMITY_ALERT_KM = 8.0f;
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constexpr float LED_ALERT_RADIUS_KM = 3.0f;
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86
src/main.cpp
86
src/main.cpp
@@ -27,10 +27,12 @@
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#include "splash_screen.h"
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#include "led_alert.h"
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#include "flight_logbook.h"
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#include "weather.h"
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#include "i18n.h"
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#include "first_run_language_screen.h"
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#include "menu_stars.h"
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#include "ui_font.h"
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#include <math.h>
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TFT_eSPI tft = TFT_eSPI();
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@@ -44,6 +46,7 @@ uint32_t lastPollMs = 0;
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uint32_t lastSweepMs = 0;
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uint32_t lastStatusLineMs = 0;
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uint32_t lastRenderedVersion = 0xFFFFFFFF;
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Weather::Condition lastRenderedWeather = Weather::Condition::Unknown;
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bool forceRedraw = false;
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bool wasEmergency = false;
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bool bannerBlinkOn = false;
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@@ -80,6 +83,11 @@ struct Rect {
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Rect menuBtn = {Config::SCREEN_WIDTH - 90, 3, 54, 22};
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// Platz, an dem frueher der Cam-Button war (siehe entfernte Screenshot-
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// Funktion) - zeigt jetzt stattdessen ein kleines Wetter-Icon fuer den
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// aktuell aktiven Standort (siehe weather.cpp/Weather::update()).
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Rect weatherIconRect = {(int16_t)(menuBtn.x - 46), 3, 42, 22};
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void drawMenuButton() {
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tft.fillRoundRect(menuBtn.x, menuBtn.y, menuBtn.w, menuBtn.h, 4, TFT_BLACK);
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tft.drawRoundRect(menuBtn.x, menuBtn.y, menuBtn.w, menuBtn.h, 4, TFT_GREEN);
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@@ -89,6 +97,73 @@ void drawMenuButton() {
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tft.setTextDatum(TL_DATUM);
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}
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// Kleine, mit einfachen TFT_eSPI-Grundformen gezeichnete Wolke (kein
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// Bild/Font noetig) - Basis fuer die Regen/Schnee/Gewitter-Varianten.
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void drawCloudShape(int16_t cx, int16_t cy, uint16_t color) {
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tft.fillCircle(cx - 5, cy + 1, 3, color);
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tft.fillCircle(cx - 1, cy - 2, 4, color);
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tft.fillCircle(cx + 4, cy, 4, color);
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tft.fillRect(cx - 8, cy, 13, 3, color);
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}
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// Sonne mit ein paar Strahlen ringsum, ebenfalls nur aus Grundformen.
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void drawSunShape(int16_t cx, int16_t cy, int16_t r, uint16_t color) {
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tft.fillCircle(cx, cy, r, color);
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for (uint8_t i = 0; i < 8; i++) {
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float angle = i * (PI / 4.0f);
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int16_t x1 = cx + (int16_t)((r + 2) * cosf(angle));
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int16_t y1 = cy + (int16_t)((r + 2) * sinf(angle));
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int16_t x2 = cx + (int16_t)((r + 4) * cosf(angle));
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int16_t y2 = cy + (int16_t)((r + 4) * sinf(angle));
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tft.drawLine(x1, y1, x2, y2, color);
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}
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}
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// Zeichnet das Wetter-Icon passend zur zuletzt abgefragten Wetterlage
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// (Weather::current()) - bei Weather::Condition::Unknown (noch keine
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// erfolgreiche Abfrage, z.B. kurz nach dem Booten) bleibt die Flaeche
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// einfach leer, statt einen Platzhalter anzuzeigen.
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void drawWeatherIcon() {
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int16_t cx = weatherIconRect.x + weatherIconRect.w / 2;
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int16_t cy = weatherIconRect.y + weatherIconRect.h / 2;
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tft.fillRect(weatherIconRect.x, weatherIconRect.y, weatherIconRect.w, weatherIconRect.h, TFT_BLACK);
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switch (Weather::current()) {
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case Weather::Condition::Clear:
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drawSunShape(cx, cy, 6, TFT_YELLOW);
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break;
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case Weather::Condition::PartlyCloudy:
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drawSunShape((int16_t)(cx - 4), (int16_t)(cy - 3), 4, TFT_YELLOW);
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drawCloudShape((int16_t)(cx + 3), (int16_t)(cy + 2), TFT_LIGHTGREY);
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break;
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case Weather::Condition::Cloudy:
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drawCloudShape(cx, cy, TFT_LIGHTGREY);
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break;
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case Weather::Condition::Rain:
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drawCloudShape(cx, (int16_t)(cy - 3), TFT_LIGHTGREY);
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tft.drawLine(cx - 4, cy + 4, cx - 6, cy + 8, TFT_SKYBLUE);
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tft.drawLine(cx, cy + 4, cx - 2, cy + 8, TFT_SKYBLUE);
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tft.drawLine(cx + 4, cy + 4, cx + 2, cy + 8, TFT_SKYBLUE);
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break;
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case Weather::Condition::Snow:
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drawCloudShape(cx, (int16_t)(cy - 3), TFT_LIGHTGREY);
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tft.drawPixel(cx - 4, cy + 6, TFT_WHITE);
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tft.drawPixel(cx, cy + 7, TFT_WHITE);
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tft.drawPixel(cx + 4, cy + 6, TFT_WHITE);
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break;
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case Weather::Condition::Thunderstorm:
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drawCloudShape(cx, (int16_t)(cy - 3), TFT_LIGHTGREY);
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tft.drawLine(cx, cy + 3, cx - 3, cy + 7, TFT_YELLOW);
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tft.drawLine(cx - 3, cy + 7, cx + 1, cy + 7, TFT_YELLOW);
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tft.drawLine(cx + 1, cy + 7, cx - 2, cy + 11, TFT_YELLOW);
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break;
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case Weather::Condition::Unknown:
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default:
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break;
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}
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}
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void drawWifiIcon(int16_t rightX, int16_t rowTop, int16_t rowH, int8_t rssi) {
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uint8_t level;
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if (rssi >= -55) level = 4;
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@@ -131,6 +206,8 @@ void drawHeader() {
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tft.println("Eiswolfs FR");
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drawMenuButton();
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updateWifiIcon();
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drawWeatherIcon();
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lastRenderedWeather = Weather::current();
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}
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void updateStatusLine() {
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@@ -165,6 +242,15 @@ void updateStatusLine() {
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}
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updateWifiIcon();
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// Icon nur bei tatsaechlicher Aenderung neu zeichnen (Weather::update()
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// laeuft im Hintergrund auf Core 0 und aktualisiert typischerweise nur
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// alle paar Minuten) - vermeidet unnoetiges Neuzeichnen jede Sekunde.
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Weather::Condition weatherNow = Weather::current();
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if (weatherNow != lastRenderedWeather) {
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lastRenderedWeather = weatherNow;
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drawWeatherIcon();
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}
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}
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// Prueft, ob die aktuelle Lokalzeit im Nachtdimm-Fenster (22:00-06:00) liegt.
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@@ -10,6 +10,7 @@
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#include "flight_logbook.h"
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#include "led_alert.h"
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#include "web_export_server.h"
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#include "weather.h"
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#include <Arduino.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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@@ -39,6 +40,7 @@ namespace {
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}
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AircraftDetails::update();
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Weather::update();
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if (millis() - lastFetchMs >= Config::FETCH_INTERVAL_MS) {
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lastFetchMs = millis();
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103
src/weather.cpp
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103
src/weather.cpp
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@@ -0,0 +1,103 @@
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#include "weather.h"
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#include "config.h"
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#include "location_manager.h"
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#include <WiFi.h>
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#include <WiFiClientSecure.h>
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#include <HTTPClient.h>
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#include <ArduinoJson.h>
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#include <math.h>
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namespace Weather {
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namespace {
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WiFiClientSecure client;
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bool clientConfigured = false;
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Condition currentCondition = Condition::Unknown;
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uint32_t lastFetchMs = 0;
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double lastLat = 0;
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double lastLon = 0;
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bool hasLastLocation = false;
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// Ordnet den WMO-Wettercode von Open-Meteo (Feld "weathercode", siehe
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// https://open-meteo.com/en/docs) einer der wenigen Icon-Kategorien zu,
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// die main.cpp zeichnen kann.
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Condition conditionFromWmoCode(int code) {
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if (code == 0) return Condition::Clear;
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if (code == 1 || code == 2) return Condition::PartlyCloudy;
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if (code == 3 || code == 45 || code == 48) return Condition::Cloudy;
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if ((code >= 51 && code <= 67) || (code >= 80 && code <= 82)) return Condition::Rain;
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if (code >= 71 && code <= 77) return Condition::Snow;
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if (code >= 95) return Condition::Thunderstorm;
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return Condition::Unknown;
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}
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void fetchNow(double lat, double lon) {
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if (WiFi.status() != WL_CONNECTED) return;
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if (!clientConfigured) {
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client.setInsecure();
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client.setTimeout(Config::HTTP_TIMEOUT_MS);
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clientConfigured = true;
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}
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HTTPClient http;
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char url[160];
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snprintf(url, sizeof(url),
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"https://api.open-meteo.com/v1/forecast?latitude=%.4f&longitude=%.4f¤t_weather=true",
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lat, lon);
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http.setTimeout(Config::HTTP_TIMEOUT_MS);
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if (!http.begin(client, url)) return;
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int code = http.GET();
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if (code != HTTP_CODE_OK) {
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http.end();
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return;
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}
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// Body erst komplett als String einsammeln (getString() kuemmert
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// sich zuverlaessig um Chunked-Transfer-Encoding), statt direkt aus
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// http.getStream() zu parsen - Letzteres scheiterte bei Open-Meteo
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// zuverlaessig mit einem ArduinoJson-"InvalidInput"-Fehler.
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String body = http.getString();
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http.end();
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JsonDocument doc;
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DeserializationError err = deserializeJson(doc, body);
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if (err) return;
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int wmoCode = doc["current_weather"]["weathercode"] | -1;
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if (wmoCode < 0) return;
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currentCondition = conditionFromWmoCode(wmoCode);
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}
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}
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void update() {
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double lat = 0, lon = 0;
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LocationManager::getHomeLocation(lat, lon);
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if (lat == 0 && lon == 0) return;
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// Deutliche Standort-Aenderung (z.B. anderes Standort-Preset aktiviert)
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// - sofort neu abfragen statt bis zum naechsten regulaeren Intervall zu
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// warten, damit das Icon nicht minutenlang das Wetter des alten
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// Standorts zeigt.
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bool locationChanged = !hasLastLocation ||
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fabs(lat - lastLat) > 0.01 || fabs(lon - lastLon) > 0.01;
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uint32_t now = millis();
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if (!locationChanged && (now - lastFetchMs < Config::WEATHER_FETCH_INTERVAL_MS)) {
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return;
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}
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lastFetchMs = now;
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lastLat = lat;
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lastLon = lon;
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hasLastLocation = true;
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fetchNow(lat, lon);
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}
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Condition current() { return currentCondition; }
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}
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33
src/weather.h
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33
src/weather.h
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@@ -0,0 +1,33 @@
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#pragma once
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#include <Arduino.h>
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// Sehr einfache Wetteranzeige (Icon im Header, dort wo frueher der
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// Cam-Button war) - fragt periodisch die aktuelle Wetterlage fuer den
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// gerade aktiven Standort ab (also inkl. aktivem Standort-Preset, siehe
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// LocationManager::getHomeLocation() - wenn dort z.B. Mailand ausgewaehlt
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// ist, zeigt das Icon das Wetter in Mailand). Nutzt die kostenlose
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// Open-Meteo-API (kein API-Key noetig).
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namespace Weather {
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enum class Condition {
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Unknown, // noch keine erfolgreiche Abfrage - Icon zeigt nichts an
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Clear,
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PartlyCloudy,
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Cloudy,
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Rain,
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Snow,
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Thunderstorm
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};
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// Muss regelmaessig aus dem NetTask (Core 0) aufgerufen werden - kuemmert
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// sich intern um das Abfrage-Intervall (Config::WEATHER_FETCH_INTERVAL_MS)
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// und erkennt eine Standort-Aenderung (z.B. anderes aktives Preset), um
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// dann sofort neu abzufragen statt bis zum naechsten reguleren Intervall
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// zu warten.
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void update();
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// Aktuell bekannte Wetterlage, threadsicher genug fuer diesen Zweck (ein
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// einzelnes uint8-artiges Enum, das nur vom NetTask geschrieben und vom
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// UI-Thread gelesen wird - kein Lock noetig, ein kurzfristig veraltetes
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// Lesen ist unkritisch).
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Condition current();
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}
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Block a user