relay: [#9] utilize parsed event data

source/shoh/src/threads/relay/Relay.cpp

@@ -83,6 +83,7 @@ void Relay::taskFunction()
 	{
 		_qm->receive<Event>(ThreadCommon::QueueManager::relay_event_master, &data, portMAX_DELAY);
 		parseEvent(&data);
+		utilizeEventData();
 	}
 }
 
@@ -111,6 +112,37 @@ void Relay::parseEvent(Event* d)
 		}
 }
 
+void Relay::utilizeEventData()
+{
+    PowerMode pm = POWER_0;
+    /* If setpoint is lower than ext_temp,
+	 * none of below checks will pass and function
+	 * shall turn OFF the heater.
+	 * When setpoint is always higher than ext_temp,
+     * we can use up to three stages determine how 
+	 * powerful the output of the signal should be.
+     */
+    int8_t diff = setpoint - ext_temp;
+
+    if (diff >= 10)
+    {
+        pm = POWER_3;
+    }
+
+    if (diff >= 5)
+    {
+        pm = POWER_2;
+    }
+
+    if (diff >= 1)
+    {
+        pm = POWER_1;
+    }
+
+    setPowerMode(pm);
+    return;
+}
+
 void thread_relay(void * pvParams)
 {
 	ThreadCommon::CommonManagers * manager = static_cast<ThreadCommon::CommonManagers*>(pvParams);

source/shoh/src/threads/relay/Relay.h

@@ -45,6 +45,7 @@ public:
 	virtual ~Relay();
 	void taskFunction();
 	void setPowerMode(PowerMode pm);
+	void utilizeEventData();
 private:
 	ThreadCommon::QueueManager* _qm;
 	RelayDevice relays [2] = {{0, 24, 0},