Added clock-halt handling and improved display.

src/fastclock.cpp

@@ -53,6 +53,7 @@ void Fastclock::loop(void) {
     msPerModelSecond = 500;
   }
   if (newTimeTick - lastTimeTickUsed < MIN_TIME_ms_BETWEEN_CLOCK_UPDATES) return;
+  if (halted) { lastTimeTickUsed = newTimeTick; return; }
   int fastclockTimeAdvance = (newTimeTick - lastTimeTickUsed) * 1000 / msPerModelSecond;
 
   oldMinute = minute;
@@ -72,4 +73,9 @@ void Fastclock::loop(void) {
 void Fastclock::begin(void) {
   lastTimeTickUsed = millis();
   Serial.print("*** Setting up Fastclock, init lastSentTimeTick="); Serial.println(lastTimeTickUsed);
+  // following setters do not change anything, but they update the display as well
+  setClockSpeed(msPerModelSecond);
+
+  display->setClockHalted(halted);
+  display->setTime(hour, minute);
 }