Added temperature and relay nodes

lib/HomieNodes/RelayNode.hpp

@@ -0,0 +1,49 @@
+/*
+ * RelayNode.hpp
+ * Homie Node for a Relay with optional status indicator LED
+ *
+ * Version: 1.0
+ * Author: Lübbe Onken (http://github.com/luebbe)
+ */
+
+#pragma once
+
+#include <Homie.hpp>
+
+#define DEFAULTPIN -1
+
+class RelayNode : public HomieNode
+{
+private:
+  const char *cCaption = "• Relay:";
+  const char *cIndent = "  ◦ ";
+
+  int _relayPin;
+  int _ledPin;
+
+  uint8_t _relayOnValue;
+  uint8_t _relayOffValue;
+  uint64_t _timeout;
+
+  bool handleOnOff(const String &value);
+  bool handleTimeout(const String &value);
+
+  void printCaption();
+  void sendState();
+
+  void setupRelay();
+  bool getRelayState();
+  void setRelayState(bool on);
+
+  void setLed(bool on);
+
+protected:
+  virtual bool handleInput(const HomieRange &range, const String &property, const String &value) override;
+  virtual void setup() override;
+  virtual void loop() override;
+
+public:
+  explicit RelayNode(const char *name, const int relayPin = DEFAULTPIN, const int ledPin = DEFAULTPIN, const bool reverseSignal = false);
+  void setRelay(bool on, long timeoutSecs = 0);
+  void toggleRelay();
+};