From c83210c4a6b725a33c4e9d2ffdbc470406fa0634 Mon Sep 17 00:00:00 2001
From: Marcel Walter <marcel.s.walter@gmail.com>
Date: Wed, 7 Jan 2026 03:03:39 +0100
Subject: [PATCH] try homeassistant discovery

---
 src/main.cpp | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index b75490a..e987ebc 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -332,6 +332,55 @@ void mqttRefresh()
         mqtt.subscribe(FLIPDOT_SWITCH_TOPIC);
         mqtt.subscribe(FLIPDOT_TEXT_TOPIC);
         mqtt.publish(FLIPDOT_AVAILABILITY_TOPIC, "available");
+
+        auto mac = WiFi.macAddress();
+        mac.replace(":","_");
+
+        JsonDocument doc;
+        JsonObject device = doc["dev"].to<JsonObject>();
+        device["ids"] = mac;
+        device["name"] = "FlipDotDisplay";
+        device["mf"] = "-mf-";
+        device["mdl"] = "-mdl-";
+        device["sw"] = "-sw-";
+        device["sn"] = "-sn-";
+        device["hw"] = "-hw-";
+        
+        JsonObject origin = doc["o"].to<JsonObject>();
+        origin["name"] = "Hobbyhimmel";
+        origin["sw"] = "-sw-";
+        origin["url"] = "https://hobbyhimmel.de";
+
+        JsonObject components = doc["cmps"].to<JsonObject>();
+        JsonObject sw = doc["FlipDotDisplaySwitch"].to<JsonObject>();
+        sw["unique_id"] = mac + "FlipDotDisplaySwitch";
+        sw["p"] = "switch";
+        sw["command_topic"] = FLIPDOT_SWITCH_TOPIC;
+        sw["state_topic"] = FLIPDOT_SWITCH_TOPIC"/state";
+        sw["payload_on"] = "open";
+        sw["payload_off"] = "close";
+        sw["qos"] = 0;
+        sw["retain"] = false;
+
+        JsonObject txt = doc["FlipDotDisplayText"].to<JsonObject>();
+        sw["unique_id"] = mac + "FlipDotDisplayText";
+        sw["p"] = "text";
+        sw["command_topic"] = FLIPDOT_TEXT_TOPIC;
+        sw["state_topic"] = FLIPDOT_TEXT_TOPIC"/state";
+        sw["qos"] = 0;
+        sw["retain"] = false;
+
+        doc["availability_topic "] = FLIPDOT_AVAILABILITY_TOPIC;
+
+        String jsonString; 
+        serializeJson(doc, jsonString);
+
+        String discoveryTopic = "homeassistant/device/";
+        discoveryTopic += mac + "/config";
+        
+        mqtt.publish(discoveryTopic.c_str(), jsonString.c_str());
+        Serial.print("Homeassistant Discovery was published: ");
+        Serial.println(jsonString);
       }
     }
   }