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Nerd-Display (ESP8266 + MD\\_Parola + MQTT + WebUI)\n\nZeigt Texte/Werte auf einer MAX7219-Matrix (FC16) mit konfigurierbarer Modulanzahl an.\nKonfiguration per WebUI (LittleFS) **und** MQTT.\nUnterstützt globale und per-Message Ein-/Ausblendeffekte sowie individuelle Anzeigedauer (dwell) je Nachricht.\n\n## ✨ Features\n\n* MD\\_Parola Effekte (global oder pro Nachricht einzeln)\n* Individuelle **dwell-Zeiten** pro Nachricht (ms)\n* MQTT:\n\n  * `set/*` (Kommandos)\n  * `state/*` (retained States)\n  * `meta/*` (Bootstrapping-Infos)\n* Bootstrapping: Setzt beim ersten Connect alle Defaultwerte\n* WebUI (LittleFS) für Konfiguration\n* Konfigurierbare Anzahl verketteter MAX7219-Module (1..32) via WebUI\n* Mehrere Nachrichten in einer Schleife rotierend anzeigen\n\n## 📂 Ordnerstruktur\n\n```\nNerdDisplay.ino\napp.h / app.cpp\nconfig_store.h / config_store.cpp\ndisplay_service.h / display_service.cpp\nmqtt_service.h / mqtt_service.cpp\nmqtt_topics.h\nweb_handlers.h / web_handlers.cpp\nwebui.h\n```\n\n## 📦 Abhängige Libraries\n\n* [ESP8266 Core](https://github.com/esp8266/Arduino)\n* [MD\\_Parola](https://github.com/MajicDesigns/MD_Parola)\n* [MD\\_MAX72XX](https://github.com/MajicDesigns/MD_MAX72XX)\n* [PubSubClient](https://github.com/knolleary/pubsubclient)\n* [ArduinoJson](https://arduinojson.org/)\n* [WiFiManager](https://github.com/tzapu/WiFiManager)\n* LittleFS (integriert im ESP8266 Core)\n\n## 📡 MQTT Beispiele\n\n### Einzelner Text (globaler Effekt + dwell)\n\n* **Topic:**\n  `\u003cbaseTopic\u003e/set/text`\n* **Payload:**\n\n  ```json\n  \"Hallo\"\n  ```\n\n  oder\n\n  ```json\n  {\"text\":\"Hallo\"}\n  ```\n\n### Mehrere Texte (globaler Effekt + dwell)\n\n```json\n[\"Hallo\", \"Zebra\"]\n```\n\noder\n\n```json\n{\"messages\":[\"Hallo\", \"Zebra\"]}\n```\n\n### Per-Message Effekte und dwell\n\n```json\n[\n  {\"text\":\"Hallo\",\"in\":\"SCROLL_LEFT\",\"out\":\"OPENING\",\"dwell\":1000},\n  {\"text\":\"Zebra\",\"in\":\"PRINT\",\"out\":\"CLOSING\",\"dwell\":3000},\n  \"Eintrag ohne Objekt nutzt globale Defaults\"\n]\n```\n\n* **`in`** = MD\\_Parola Effektname für Einblenden (optional, leer = globaler Effekt)\n* **`out`** = MD\\_Parola Effektname für Ausblenden (optional, leer = globaler Effekt)\n* **`dwell`** = Anzeigedauer in Millisekunden (optional, `-1` oder leer = globaler dwell)\n\n### Objektform mit `messages`-Array\n\n```json\n{\"messages\":[\n  {\"text\":\"A\",\"dwell\":500},\n  {\"text\":\"B\",\"in\":\"SCROLL_RIGHT\",\"dwell\":2000}\n]}\n```\n\n## ⚙ Globale Parameter per MQTT setzen\n\n* `\u003cbaseTopic\u003e/set/brightness` → 0..15\n* `\u003cbaseTopic\u003e/set/speed` → Parola Geschwindigkeit (1..65535)\n* `\u003cbaseTopic\u003e/set/dwell` → globaler dwell in ms\n* `\u003cbaseTopic\u003e/set/effect_in` → globaler Einblendeffekt\n* `\u003cbaseTopic\u003e/set/effect_out` → globaler Ausblendeffekt\n* `\u003cbaseTopic\u003e/set/effect` → beide Effekte gleichzeitig setzen (Legacy)\n\n## 📜 MD\\_Parola Effektliste\n\nFolgende Werte sind für `in` und `out` gültig (Großschreibung beachten):\n\n* PRINT\n* SLICE\n* WIPE\n* WIPE\\_CURSOR\n* OPENING\n* OPENING\\_CURSOR\n* CLOSING\n* CLOSING\\_CURSOR\n* BLINDS\n* DISSOLVE\n* SCROLL\\_UP\n* SCROLL\\_DOWN\n* SCROLL\\_LEFT\n* SCROLL\\_RIGHT\n* SCROLL\\_UP\\_LEFT\n* SCROLL\\_UP\\_RIGHT\n* SCROLL\\_DOWN\\_LEFT\n* SCROLL\\_DOWN\\_RIGHT\n* SCAN\\_HORIZ\n* SCAN\\_VERT\n* GROW\\_UP\n* GROW\\_DOWN\n\n*(Die genaue Wirkung dieser Effekte ist in der [MD\\_Parola Dokumentation](https://majicdesigns.github.io/MD_Parola/class_m_d___parola.html) beschrieben.)*\n\n## 📜 Lizenz\n\nMIT (siehe LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgraythezebra%2Fnerd-display","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgraythezebra%2Fnerd-display","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgraythezebra%2Fnerd-display/lists"}