Added clock-halt handling and improved display.

README.md

@@ -13,8 +13,8 @@ The tasks of the master clock / controller is:
 ## Links / References
 
 - Digitrax Loconet PE: http://www.digitrax.com/static/apps/cms/media/documents/loconet/loconetpersonaledition.pdf
--- we do not support loconet yet, but it is an option to be added later
--- see page 14 ff. about FAST Clock definitions
+  - we do not support loconet yet, but it is an option to be added later
+  - see page 14 ff. about FAST Clock definitions
 - Rocrail with a description of the loconet interface (German): https://wiki.rocrail.net/doku.php?id=loconet:ln-pe-de
 - List of loconet interfaces: http://loconetovertcp.sourceforge.net/Client/index.html, and here especially the fast clock: http://loconetovertcp.cvs.sourceforge.net/loconetovertcp/tcp/client/Clock/
 - FREMO had some discussions about fast clocks, see the forum (available to members only)

src/display.cpp

@@ -128,12 +128,18 @@ void Display::addLogMessage(const char *message) {
 
 void Display::showDashboard(void) {
   static unsigned long lastDisplayUpdate_ms = 0;
+  static unsigned long lastBlinkChange_ms = 0;
+  static bool blinkOnCycle = false; // toggles the on/off blinking phase
 
   currentScreen = DashboardScreen;
   // avoid flickering of the display:
   if (millis() - lastDisplayUpdate_ms < TIME_BETWEEN_DISPLAY_UPDATES_ms) return;
   lastDisplayUpdate_ms = millis();
-  
+  if (lastDisplayUpdate_ms - lastBlinkChange_ms > BLINK_ON_OFF_TIME_ms) {
+    lastBlinkChange_ms = lastDisplayUpdate_ms;
+    blinkOnCycle = !blinkOnCycle;
+  }
+
   u8g2.clearBuffer();
   u8g2.setDrawColor(1);
 
@@ -143,26 +149,28 @@ void Display::showDashboard(void) {
   u8g2.print(clockName);
 
   // ****** speed *****
-  setNormalTextSize();
-  u8g2.setCursor(55, 2*getTextHeight()-1);
+  setSmallTextSize();
+  u8g2.setCursor(55, 2*getTextHeight());
   u8g2.print(clockSpeed);
 
   // ***** time *****
-  setLargeTextSize();
-  u8g2.setCursor(0, u8g2.getDisplayHeight()-1);
-  if (clockHour < 10) u8g2.print("0");
-  u8g2.print(clockHour);
-  u8g2.print(":");
-  if (clockMinute < 10) u8g2.print("0");
-  u8g2.print(clockMinute);
+  if (!clockHalted || blinkOnCycle) {
+    setLargeTextSize();
+    u8g2.setCursor(0, u8g2.getDisplayHeight()-1);
+    if (clockHour < 10) u8g2.print("0");
+    u8g2.print(clockHour);
+    u8g2.print(":");
+    if (clockMinute < 10) u8g2.print("0");
+    u8g2.print(clockMinute);
+  }
 
   // ***** halt/go *****
   if (clockHalted) {
     setSmallTextSize();
-    u8g2.setDrawColor(1);
-    u8g2.drawBox(55, u8g2.getDisplayHeight() - 2*getTextHeight()-3, 5*4+2, getTextHeight());
-    u8g2.setDrawColor(0);
-    u8g2.setCursor(57, u8g2.getDisplayHeight() - getTextHeight()-3);
+    u8g2.setDrawColor(blinkOnCycle ? 1 : 0);
+    u8g2.drawBox(55, u8g2.getDisplayHeight() - 2*getTextHeight()-4, 4*u8g2.getMaxCharWidth()+3, getTextHeight()+1);
+    u8g2.setDrawColor(blinkOnCycle ? 0 : 1);
+    u8g2.setCursor(57, u8g2.getDisplayHeight() - getTextHeight()-4);
     u8g2.print("HALT");
     u8g2.setDrawColor(1);
   }

src/display.h

@@ -3,6 +3,7 @@
 
 // avoid flickering of the display:
 #define TIME_BETWEEN_DISPLAY_UPDATES_ms 200
+#define BLINK_ON_OFF_TIME_ms 1000
 
 #define MAX_CLOCK_NAME_LEN 8
 #define MAX_CLOCK_SPEED_LEN 8

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);
 }

src/fastclock.h

@@ -4,10 +4,11 @@
 #include "display.h"
 
 #define MIN_TIME_ms_BETWEEN_CLOCK_UPDATES 200
+#define DEFAULT_ms_PER_MODEL_SECOND 250
 
 class Fastclock {
 public:
-  Fastclock(Display *d): display(d) { weekday=0; hour=0; minute=0; second=0; millisecond=0; msPerModelSecond=500; };
+  Fastclock(Display *d): display(d) { weekday=0; hour=0; minute=0; second=0; millisecond=0; msPerModelSecond=DEFAULT_ms_PER_MODEL_SECOND; halted = true; };
   void begin(void);
   void loop(void);
   void incrementClockByMilliseconds(int amount);
@@ -16,6 +17,7 @@ public:
   void setTime(uint8_t hours, uint8_t minutes, uint8_t seconds) { hour = hours; minute = minutes; second = seconds; millisecond = 0; };
   void setTime(uint8_t hours, uint8_t minutes, uint8_t seconds, uint16_t milliseconds) { hour = hours; minute = minutes; second = seconds; millisecond = milliseconds; };
   void setWeekday(uint8_t _weekday) { weekday = _weekday; };
+  void setClockHalted(bool setToHalt) { halted = setToHalt; display->setClockHalted(halted); };
 private:
   Display *display;
   unsigned long lastTimeTickUsed; // used to calculate model time
@@ -25,6 +27,7 @@ private:
   uint8_t minute;
   uint8_t second;
   uint16_t millisecond;
+  bool halted;
 
 };
 

src/main.cpp

@@ -15,6 +15,8 @@
 #include "display.h"
 #include "fastclock.h"
 
+#define AUTOSTART_CLOCK_AFTER_ms 10000
+
 //define your default values here, if there are different values in config.json, they are overwritten.
 //length should be max size + 1
 char mqtt_server[40] = "";
@@ -229,6 +231,20 @@ void loop(void)
     return;
   }
 
+#if defined(AUTOSTART_CLOCK_AFTER_ms)
+#if AUTOSTART_CLOCK_AFTER_ms > 0
+  static unsigned long autostart_ms = 0;
+  static bool autostartDone = false;
+  if (autostart_ms == 0) {
+    autostart_ms = millis() + AUTOSTART_CLOCK_AFTER_ms;
+  } else if (!autostartDone && millis() > autostart_ms) {
+    autostartDone = true;
+    fastclock.setClockHalted(false);
+    Serial.println("Clock started automatically");
+  }
+#endif
+#endif
+
   fastclock.loop();
   display.showDashboard();