first version with working relay function

things/DeviceRelay.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Device.h"
+#include <Homie.h>
+
+class DeviceRelay : public Device {
+  public:
+    inline DeviceRelay(byte relayPin, char* relayName):relayNode(relayName, "relay") {
+      pinRelay = relayPin;
+      nameRelay = relayName;
+    }
+    virtual void deviceSetup();
+    virtual void deviceRegister();
+    virtual void deviceLoop();
+    bool relayOnHandler(String value);
+  private:
+    byte pinRelay;
+    char* nameRelay;
+    void setRelay(bool value);
+    HomieNode relayNode;
+};