v3.5

- Add emergency firmware update via SD (for dev purposes)
- WM fixes (Upload, etc)
- WM: Skip setting static IP params in Save
- Add "No SD present" banner in Config Portal if no SD present
- CP: Show msg instead of upload file input if no sd card is present
- Let DNS server in AP mode only resolve our domain (hostname)
- Allow 6 clients in AP mode instead of 4. So all props can connect to the TCD in AP mode, plus one admin computer/hand held. HOWEVER: Under normal use, do NOT connect a computer or phone to the TCD in AP mode unless for configuration changes. That computer might think it is connected to the internet, resulting in lots of network traffic, leading to packet loss, slowdowns or out-of-sync animations.
- More WiFiManager changes. We no longer use NVS-stored WiFi configs, all is managed by our own settings. (No details are known, but it appears as if the core saves some data to NVS on every reboot, this is totally not needed for our purposes, nor in the interest of flash longevity.)
- Save static IP only if changed
- WiFi Manager overhaul; many changes to Config Portal. WiFi-related settings moved to WiFi Configuration page. Note: If the TCD is in AP-mode, mp3 playback will be stopped when accessing Config Portal web pages from now on. This had lead to sound stutter and incomplete page loads in the past.
 - Various code optimizations to minimize code size and used RAM
- Config Portal: Re-order settings; remove non-checkbox-code.
- Turn former compile-time option "SP_ALWAYS_ON" into run-time option "Switch off speedo when idle". SP_ALWAYS_ON still exists but now only defines the default setting.
- Turn former BTTF3_ANIM (for part-3-like date entry animation), REV_AM_PM (for reversing AM/PM) and SKIP_TT (for skipping the time-tunnel display animation) options into run-time options. All default to off.
- Config Portal: Display image links to currently connected BTTFN clients in top menu
- Config Portal: Add "install sound pack" banner to main menu

Author: CircuitSetup

Software/platformio.ini

@@ -24,19 +24,14 @@ build_flags =
 	;see tc_global.h for full explanations of these options
 	#-DTC_DBG		   ;enables serial debug
 	-DCORE_DEBUG_LEVEL=0 
-	#-DUSE_SPIFFS	   ;use SPIFFS for arduinoespressif32 < 2.0, otherwise use LittleFS - If LittleFS uncomment board_build.filesystem below
 	#-DIS_ACAR_DISPLAY ;changes the month output to 2 numbers, per the original A Car display
 	#-DGTE_KEYPAD      ;keypad mapping for real GTE/TRW keypad control board
 	-DTC_HAVESPEEDO    ;enables speedo control via i2c - HT16K33-based
 	#-DSP_CS_0ON       ;enable the fake-0 on CircuitSetup's speedo
-	-DSP_ALWAYS_ON     ;keep speedo showing "00" when neither temp nor GPS speed are to be displayed instead of switching it off
 	-DTC_HAVEGPS	   ;enables support for a speedo with GPS
 	-DTC_HAVELIGHT     ;enables support for a light sensor via i2c - TLS2561, BH1750
 	-DTC_HAVETEMP      ;support of a temperature/humidity sensor (MCP9808, BMx280, SI7021, SHT40, TMP117, AHT20, HTU31D) connected via i2c
-	#-DBTTF3_ANIM      ;uncomment for alternate "animation" when entering a destination time
-	#-DREV_AMPM        ;uncomment if AM and PM should be reversed (like in BTTF2/3-version of TCD)
 	-DHAVE_STALE_PRESENT ;99mmddyyyyhhMM sets (and enables) a stale present time/exhibition mode
-	#-DTT_NO_ANIM	   ;do not animate time travel sequence
 	#-DTC_HAVE_RE      ;uncomment for rotary encoder support, used to manually select a speed to be displayed on a speedo display
 	-DTC_HAVE_REMOTE   ;uncomment for Remote support - "Remote" is a modified Futaba remote control with CS/A10001986 control board
 	-DTC_HAVELINEOUT   ;support for line-out audio (CB 1.4) is included
@@ -56,7 +51,7 @@ board = nodemcu-32s
 platform_packages = platformio/framework-arduinoespressif32
 board_build.f_cpu = 240000000L
 board_build.flash_mode = qio
-board_build.filesystem = LittleFS  ;uncomment if using LittleFS - make sure USE_SPIFFS IS commented below
+board_build.filesystem = LittleFS
 upload_speed = 921600
 monitor_speed = 115200
 

Software/src/clockdisplay.cpp

@@ -76,14 +76,6 @@
 #define CD_AMPM_POS   CD_DAY_POS
 #define CD_COLON_POS  CD_YEAR_POS
 
-#ifndef REV_AMPM
-#define _AM 0x0080
-#define _PM 0x8000
-#else
-#define _AM 0x8000
-#define _PM 0x0080
-#endif
-
 extern bool     alarmOnOff;
 #ifdef TC_HAVEGPS
 extern bool     gpsHaveFix();
@@ -106,15 +98,15 @@ static const char months[13][4] = {
     "  _"
 };
 
-#ifdef BTTF3_ANIM
+#ifndef IS_ACAR_DISPLAY
 static const uint8_t idxtbl[] = {
-        0, 
-        CD_DAY_POS, CD_DAY_POS, 
-        CD_YEAR_POS, CD_YEAR_POS, 
-        CD_YEAR_POS + 1, CD_YEAR_POS + 1, 
-        CD_HOUR_POS, 
-        CD_HOUR_POS, CD_HOUR_POS, 
-        CD_MIN_POS, CD_MIN_POS
+    0, 
+    CD_DAY_POS, CD_DAY_POS, 
+    CD_YEAR_POS, CD_YEAR_POS, 
+    CD_YEAR_POS + 1, CD_YEAR_POS + 1, 
+    CD_HOUR_POS, 
+    CD_HOUR_POS, CD_HOUR_POS, 
+    CD_MIN_POS, CD_MIN_POS
 };
 #endif
 
@@ -129,9 +121,6 @@ static const char *fnSD[3] = {
 static const char *fnLastYear   = "/tcdly";
 static const char *fnLastYearSD = "/tcdly.bin";
 
-static const uint16_t _am = _AM;
-static const uint16_t _pm = _PM;
-
 /*
  * ClockDisplay class
  */
@@ -313,7 +302,7 @@ void clockDisplay::showAnimate1()
 }
 
 // Show month, assumes showAnimate1() was called before
-#ifndef BTTF3_ANIM
+#ifdef IS_ACAR_DISPLAY
 void clockDisplay::showAnimate2()
 {
     if(_nightmode && _NmOff)
@@ -327,9 +316,7 @@ void clockDisplay::showAnimate2()
     }
     Wire.endTransmission();
 }
-
-#else
-
+#else // IS_ACAR_DISPLAY
 void clockDisplay::showAnimate2(int until)
 {
     if(_nightmode && _NmOff)
@@ -386,7 +373,7 @@ void clockDisplay::showAnimate3(int mystep)
         showAnimate2(lim);
     }
 }
-#endif // BTTF3_ANIM
+#endif // IS_ACAR_DISPLAY
 
 void clockDisplay::showAlt()
 {

Software/src/clockdisplay.h

@@ -77,6 +77,9 @@ struct dateStruct {
 #define CDD_FORCE24 0x0001
 #define CDD_NOLEAD0 0x0002
 
+#define _AM 0x0080
+#define _PM 0x8000
+
 class clockDisplay {
 
     public:
@@ -103,6 +106,8 @@ class clockDisplay {
         void set1224(bool hours24) { _mode24 = hours24; }
         bool get1224()             { return _mode24; }
 
+        void setAMPMOrder(bool reverse) { _am = reverse ? _PM : _AM; _pm = reverse ? _AM : _PM; }
+
         void setNightMode(bool mymode)  { _nightmode = mymode; }
         bool getNightMode()             { return _nightmode; }
         void setNMOff(bool NMOff)       { _NmOff = NMOff; }
@@ -112,11 +117,11 @@ class clockDisplay {
 
         void show();
         void showAnimate1();
-        #ifdef BTTF3_ANIM
+        #ifdef IS_ACAR_DISPLAY
+        void showAnimate2();
+        #else
         void showAnimate2(int until = CD_BUF_SIZE);
         void showAnimate3(int mystep);
-        #else
-        void showAnimate2();
         #endif
 
         void showAlt();
@@ -214,6 +219,10 @@ class clockDisplay {
         int16_t  _lastWrittenYO = -11111;
         bool     _lastWrittenRead = false;
 
+        bool     _mode24 = false;       // true = 24 hour mode, false = 12 hour mode
+        uint16_t _am = _AM;
+        uint16_t _pm = _PM;
+
         uint8_t _month = 1;
         uint8_t _day = 1;
         uint8_t _hour = 0;
@@ -222,7 +231,6 @@ class clockDisplay {
         bool    _rtc = false;           // will this be displaying real time
         uint8_t _brightness = 15;       // current display brightness
         uint8_t _origBrightness = 15;   // value from settings
-        bool    _mode24 = false;        // true = 24 hour mode, false = 12 hour mode
         bool    _nightmode = false;     // true = dest/dept times off
         bool    _NmOff = false;         // true = off during night mode, false = dimmed
         int     _oldnm = -1;

Software/src/gps.cpp

@@ -186,9 +186,6 @@ bool tcGPS::begin(unsigned long powerupTime, int quickUpdates, int speedRate, vo
 
     _customDelayFunc = defaultDelay;
 
-    _currentline = _line1;
-    _lenIdx = 0;
-
     fix = false;
     _speed = -1;
     _haveSpeed = false;
@@ -221,6 +218,14 @@ bool tcGPS::begin(unsigned long powerupTime, int quickUpdates, int speedRate, vo
     } else
         return false;
 
+    _buffer = (char *)malloc(GPS_MAX_I2C_LEN + GPS_MAXLINELEN);
+    if(!_buffer) return false;
+
+    _line1 = _buffer + GPS_MAX_I2C_LEN;
+
+    _currentline = _line1;
+    _lenIdx = 0;
+
     // Send xxRMC and xxZDA only, for high rates also xxVTG
     // If we use GPS for speed, we need more frequent updates.
     // The value in PKT 314 is a multiplier for the value of PKT 220.

Software/src/gps.h

@@ -91,10 +91,10 @@ class tcGPS {
         int     _lenIdx = 0;
         int     _lenLimit = GPS_LENBUFLIMIT;
 
-        char    _buffer[GPS_MAX_I2C_LEN];
+        char    *_buffer = NULL; 
         char    _last_char = 0;
 
-        char    _line1[GPS_MAXLINELEN];
+        char    *_line1 = NULL;
         char    *_currentline;
         uint8_t _lineidx = 0;
         unsigned long _currentTS = 0;