Added class to handle timeouts

lib/TimeoutHelper/TimeoutHelper.cpp

@@ -0,0 +1,24 @@
+#include "TimeoutHelper.h"
+#include <Arduino.h>
+
+TimeoutHelper::TimeoutHelper()
+{
+    timeout = 0;
+    startMillis = 0;
+}
+
+void TimeoutHelper::set(uint32_t ms)
+{
+    timeout = ms;
+    startMillis = millis();
+}
+
+void TimeoutHelper::extend(uint32_t ms)
+{
+    timeout += ms;
+}
+
+bool TimeoutHelper::occured()
+{
+    return millis() > (startMillis + timeout);
+}

lib/TimeoutHelper/TimeoutHelper.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdint.h>
+
+class TimeoutHelper {
+public:
+    TimeoutHelper();
+    void set(uint32_t ms);
+    void extend(uint32_t ms);
+    bool occured();
+
+private:
+    uint32_t startMillis;
+    uint32_t timeout;
+};