new device: pushbutton

things/DeviceButton.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Device.h"
+#include <Homie.h>
+
+class DeviceButton : public Device {
+  public:
+    inline DeviceButton(byte buttonPin) {
+      pin = buttonPin;
+    }
+    virtual void deviceSetup();
+    virtual void deviceRegister();
+    virtual void deviceLoop();
+  private:
+    byte pin;
+    bool state = LOW;
+    HomieNode buttonNode = HomieNode("button", "button");
+};