new device: pushbutton

things/DeviceButton.cpp

@@ -0,0 +1,25 @@
+#include "DeviceButton.h"
+
+void DeviceButton::deviceSetup() {
+  pinMode(pin, INPUT);
+}
+
+void DeviceButton::deviceRegister() {
+  Homie.registerNode(buttonNode);
+}
+
+void DeviceButton::deviceLoop() {
+  byte debounce = 0;
+  for (int i = 0; i < 3; i++) {
+    if (digitalRead(pin) == state) {
+      return;
+    }
+    delay(10);
+  }
+  state = !state;
+  Serial.print("button: ");
+  Serial.println(state);
+  if (!Homie.setNodeProperty(buttonNode, "state", String(state), false)) {
+    Serial.println("Sending failed");
+  }
+}