Added Config-options fpr Different SpeedSources

Software/ChainLube/platformio.ini

@@ -26,7 +26,7 @@ upload_speed = 921600
 
 build_flags =
   !python git_rev_macro.py
-  -DWIFI_NOCLIENT
+  -DWIFI_CLIENT
   -DWIFI_SSID=${wifi_cred.wifi_ssid}
   -DWIFI_PASSWORD=${wifi_cred.wifi_password}
   -DADMIN_PASSWORD=${wifi_cred.admin_password}

Software/ChainLube/src/config.cpp

@@ -1,7 +1,12 @@
-#include <Arduino.h>
 #include "config.h"
 
 LubeConfig_t LubeConfig;
+persistenceData_t PersistenceData;
+uint16_t eePersistenceMarker = 0;
+uint16_t eeVersion = 0; // inc
+
+const uint16_t startofLubeConfig = sizeof(eePersistenceMarker);
+const uint16_t startofPersistence = sizeof(LubeConfig);
 
 void StoreConfig_EEPROM()
 {
@@ -9,7 +14,7 @@ void StoreConfig_EEPROM()
   LubeConfig.checksum = Checksum_EEPROM((uint8_t *)&LubeConfig, sizeof(LubeConfig));
 
   EEPROM.begin(512);
-  EEPROM.put(0, LubeConfig);
+  EEPROM.put(startofLubeConfig, LubeConfig);
   EEPROM.commit();
   EEPROM.end();
 }
@@ -17,16 +22,81 @@ void StoreConfig_EEPROM()
 void GetConfig_EEPROM()
 {
   EEPROM.begin(512);
-  EEPROM.get(0, LubeConfig);
+  EEPROM.get(startofLubeConfig, LubeConfig);
   EEPROM.end();
 
   uint32_t checksum = LubeConfig.checksum;
   LubeConfig.checksum = 0;
 
   if (Checksum_EEPROM((uint8_t *)&LubeConfig, sizeof(LubeConfig)) == checksum)
-    Serial.printf("Checksum OK");
+    Serial.printf("CFG EEPROM Checksum OK\n");
   else
-    Serial.printf("Checksum BAD");
+    Serial.printf("CFG EEPROM Checksum BAD\n");
+  LubeConfig.checksum = checksum;
+}
+
+void StorePersistence_EEPROM()
+{
+  EEPROM.begin(512);
+
+  if (PersistenceData.writeCycleCounter == 0xFFFF)
+  {
+    PersistenceData.writeCycleCounter = 0;
+    eePersistenceMarker += sizeof(PersistenceData);
+    EEPROM.put(0, eePersistenceMarker);
+  }
+  else
+  {
+    PersistenceData.writeCycleCounter++;
+  }
+
+  uint16_t PersistenceDataAddress = startofPersistence + eePersistenceMarker;
+
+  PersistenceData.checksum = 0;
+  PersistenceData.checksum = Checksum_EEPROM((uint8_t *)&PersistenceData, sizeof(PersistenceData));
+
+  EEPROM.put(PersistenceDataAddress, PersistenceData);
+  EEPROM.commit();
+  EEPROM.end();
+}
+
+void GetPersistence_EEPROM()
+{
+  EEPROM.begin(512);
+  EEPROM.get(0, eePersistenceMarker);
+  uint16_t PersistenceDataAddress = startofPersistence + eePersistenceMarker;
+
+  EEPROM.get(PersistenceDataAddress, PersistenceData);
+  EEPROM.end();
+
+  uint32_t checksum = PersistenceData.checksum;
+  PersistenceData.checksum = 0;
+
+  if (Checksum_EEPROM((uint8_t *)&PersistenceData, sizeof(PersistenceData)) == checksum)
+  {
+    Serial.printf("Persistance EEPROM Checksum OK\n");
+  }
+  else
+  {
+    Serial.printf("Persistance EEPROM Checksum BAD\n");
+    FormatPersistence_EEPROM();
+  }
+  PersistenceData.checksum = checksum;
+}
+
+void FormatConfig_EEPROM()
+{
+  LubeConfig_t defaults;
+  LubeConfig = defaults;
+  StoreConfig_EEPROM();
+}
+
+void FormatPersistence_EEPROM()
+{
+  persistenceData_t defaults;
+  PersistenceData = defaults;
+  eePersistenceMarker = 0;
+  StorePersistence_EEPROM();
 }
 
 uint32_t Checksum_EEPROM(uint8_t const *data, size_t len)

Software/ChainLube/src/config.h

@@ -4,13 +4,58 @@
 #include <Arduino.h>
 #include <EEPROM.h>
 
+typedef enum SpeedSource_e
+{
+  SOURCE_TIME,
+  SOURCE_IMPULSE,
+  SOURCE_GPS,
+  SOURCE_CAN
+} SpeedSource_t;
+
+typedef enum GPSBaudRate_e
+{
+  BAUD_9600,
+  BAUD_115200
+} GPSBaudRate_t;
+
+const char GPSBaudRateString[][7] = {
+    "9600",
+    "115200"};
+
+const size_t GPSBaudRateString_Elements = sizeof(GPSBaudRateString) / sizeof(GPSBaudRateString[0]);
+
+typedef enum CANSource_e
+{
+  KTM_890_ADV_R_2021
+} CANSource_t;
+
+const char CANSourceString[][28] = {
+    "KTM 890 Adventure R (2021)"};
+
+const char CANSourceString_Elements = sizeof(CANSourceString) / sizeof(CANSourceString[0]);
+
+const char SpeedSourceString[][8] = {
+    "Timer",
+    "Impuls",
+    "GPS",
+    "CAN-Bus"};
+
+const size_t SpeedSourceString_Elements = sizeof(SpeedSourceString) / sizeof(SpeedSourceString[0]);
+
+typedef struct
+{
+  uint16_t writeCycleCounter = 0;
+  uint32_t tankRemain_µl = 0;
+  uint32_t distanceTraveled_m = 0;
+  uint32_t checksum = 0;
+} persistenceData_t;
+
 typedef struct
 {
   uint32_t DistancePerLube_Default = 0;
   uint32_t DistancePerLube_Rain = 0;
   uint32_t tankCapacity_ml = 320;
   uint32_t amountPerDose_µl = 0;
-  uint32_t tankRemain_µl = 0;
   uint8_t TankRemindAtPercentage = 30;
   uint8_t PulsePerRevolution = 1;
   uint32_t TireWidth_mm = 150;
@@ -18,13 +63,21 @@ typedef struct
   uint32_t RimDiameter_Inch = 18;
   uint32_t DistancePerRevolution_mm = 2000;
   uint8_t BleedingPulses = 25;
+  SpeedSource_t SpeedSource = SOURCE_IMPULSE;
+  GPSBaudRate_t GPSBaudRate = BAUD_9600;
+  CANSource_t CANSource = KTM_890_ADV_R_2021;
   uint32_t checksum = 0;
 } LubeConfig_t;
 
 void StoreConfig_EEPROM();
 void GetConfig_EEPROM();
+void StorePersistence_EEPROM();
+void GetPersistence_EEPROM();
+void FormatConfig_EEPROM();
+void FormatPersistence_EEPROM();
 uint32_t Checksum_EEPROM(uint8_t const *data, size_t len);
 
 extern LubeConfig_t LubeConfig;
-
+extern persistenceData_t PersistenceData;
+extern uint16_t eePersistenceMarker;
 #endif // _CONFIG_H_

Software/ChainLube/src/globals.h

@@ -5,12 +5,12 @@
 
 typedef enum eSystem_Status
 {
-  sysStat_NOP,
   sysStat_Startup,
   sysStat_Normal,
   sysStat_Rain,
   sysStat_Purge,
-  sysStat_Error
+  sysStat_Error,
+  sysStat_Shutdown
 } tSystem_Status;
 
 

Software/ChainLube/src/main.cpp

@@ -46,14 +46,18 @@ CRGB leds[1];
 // Function-Prototypes
 String IpAddress2String(const IPAddress &ipAddress);
 void processCmdRemoteDebug();
+void RemoteDebug_formatCFG();
+void RemoteDebug_formatPersistence();
 void RemotDebug_printSystemInfo();
 void RemoteDebug_printWifiInfo();
+void RemoteDebug_CheckEEPOM();
 void updateWebUITicker_callback();
 void IRAM_ATTR trigger_ISR();
 void LED_Process(uint8_t override = false, CRGB setColor = CRGB::White);
 void Display_Process();
 void Button_Process();
-void startWiFiAP();
+void toggleWiFiAP(boolean shutdown = false);
+void SystemShutdown();
 
 #ifdef WIFI_CLIENT
 void wifiMaintainConnectionTicker_callback();
@@ -85,6 +89,7 @@ void setup()
   Serial.println(DeviceName);
 
   GetConfig_EEPROM();
+  GetPersistence_EEPROM();
 
   u8x8.begin();
   u8x8.setFont(u8x8_font_chroma48medium8_r);
@@ -105,6 +110,8 @@ void setup()
   Debug.showProfiler(true);       // Profiler (Good to measure times, to optimize codes)
   Debug.showColors(true);         // Colors
   Debug.setPassword(QUOTE(ADMIN_PASSWORD));
+  Debug.setSerialEnabled(true);
+  Debug.showDebugLevel(true);
 
   Debug.setHelpProjectsCmds(helpCmd);
   Debug.setCallBackProjectCmds(&processCmdRemoteDebug);
@@ -148,6 +155,7 @@ void setup()
 
   initWebUI();
   UpdateWebUITicker.start();
+  Serial.println("Setup Done");
 }
 
 void loop()
@@ -164,6 +172,8 @@ void loop()
 #ifdef WIFI_CLIENT
   WiFiMaintainConnectionTicker.update();
 #endif
+  if (globals.systemStatus == sysStat_Shutdown)
+    SystemShutdown();
   yield();
 }
 
@@ -183,6 +193,24 @@ void processCmdRemoteDebug()
     RemotDebug_printSystemInfo();
   else if (lastCmd == "netinfo")
     RemoteDebug_printWifiInfo();
+  else if (lastCmd == "formatCFG")
+    RemoteDebug_formatCFG();
+  else if (lastCmd == "formatPDS")
+    RemoteDebug_formatPersistence();
+  else if (lastCmd == "checkEE")
+    RemoteDebug_CheckEEPOM();
+}
+
+void RemoteDebug_formatCFG()
+{
+  debugA("Formatting Config-EEPROM and reseting to default");
+  FormatConfig_EEPROM();
+}
+
+void RemoteDebug_formatPersistence()
+{
+  debugA("Formatting Persistence-EEPROM and reseting to default");
+  FormatPersistence_EEPROM();
 }
 
 void RemotDebug_printSystemInfo()
@@ -204,12 +232,36 @@ void RemotDebug_printSystemInfo()
                                                          : ideMode == FM_DOUT   ? "DOUT"
                                                                                 : "UNKNOWN"));
   debugA("OTA-Pass: %s", QUOTE(ADMIN_PASSWORD));
+  debugA("Git-Revison: %s", GIT_REV);
 }
 
 void RemoteDebug_printWifiInfo()
 {
 }
 
+void RemoteDebug_CheckEEPOM()
+{
+  uint32_t checksum = PersistenceData.checksum;
+  PersistenceData.checksum = 0;
+
+  if (Checksum_EEPROM((uint8_t *)&PersistenceData, sizeof(PersistenceData)) == checksum)
+    debugA("PersistenceData EEPROM Checksum OK\n");
+  else
+    debugA("PersistenceData EEPROM Checksum BAD\n");
+
+  PersistenceData.checksum = checksum;
+
+  checksum = LubeConfig.checksum;
+  LubeConfig.checksum = 0;
+
+  if (Checksum_EEPROM((uint8_t *)&LubeConfig, sizeof(LubeConfig)) == checksum)
+    debugA("LubeConfig EEPROM Checksum OK\n");
+  else
+    debugA("LubeConfig EEPROM Checksum BAD\n");
+
+  LubeConfig.checksum = checksum;
+}
+
 #ifdef WIFI_CLIENT
 void wifiMaintainConnectionTicker_callback()
 {
@@ -229,7 +281,7 @@ void wifiMaintainConnectionTicker_callback()
     else
     {
       debugV("WiFi not connected! - Start AP");
-      startWiFiAP();
+      toggleWiFiAP();
     }
   }
 }
@@ -260,7 +312,7 @@ void LED_Process(uint8_t override, CRGB SetColor)
     LED_Override
   } tLED_Status;
 
-  static tSystem_Status oldSysStatus = sysStat_NOP;
+  static tSystem_Status oldSysStatus = sysStat_Startup;
   static tLED_Status LED_Status = LED_Startup;
   static CRGB LED_override_color = 0;
   static tLED_Status LED_ResumeOverrideStatus = LED_Startup;
@@ -316,14 +368,14 @@ void LED_Process(uint8_t override, CRGB SetColor)
       LED_Status = LED_Error;
       debugV("sysStat: Error");
       break;
-    case sysStat_NOP:
+    case sysStat_Shutdown:
     default:
       break;
     }
     oldSysStatus = globals.systemStatus;
   }
 
-  uint32_t percentage = LubeConfig.tankRemain_µl / (LubeConfig.tankCapacity_ml * 10);
+  uint32_t percentage = PersistenceData.tankRemain_µl / (LubeConfig.tankCapacity_ml * 10);
 
   switch (LED_Status)
   {
@@ -348,7 +400,12 @@ void LED_Process(uint8_t override, CRGB SetColor)
     break;
 
   case LED_Normal:
-    leds[0] = timer % 2000 > 1950 ? CRGB(0, 255, 0) : CRGB(0, 4, 0);
+    if (timer % 2000 > 1950)
+      leds[0] = CRGB(0, 255, 0);
+    else if (WiFi.getMode() != WIFI_OFF && timer % 2000 > 1800 && timer % 2000 < 1850)
+      leds[0] = CRGB(255, 128, 0);
+    else
+      leds[0] = CRGB(0, 4, 0);
     break;
 
   case LED_Confirm_Rain:
@@ -363,7 +420,12 @@ void LED_Process(uint8_t override, CRGB SetColor)
     break;
 
   case LED_Rain:
-    leds[0] = timer % 2000 > 1950 ? CRGB(0, 0, 255) : CRGB(0, 0, 4);
+    if (timer % 2000 > 1950)
+      leds[0] = CRGB(0, 0, 255);
+    else if (WiFi.getMode() != WIFI_OFF && timer % 2000 > 1800 && timer % 2000 < 1850)
+      leds[0] = CRGB(255, 128, 0);
+    else
+      leds[0] = CRGB(0, 0, 4);
     break;
 
   case LED_Purge:
@@ -395,9 +457,12 @@ void Display_Process()
   u8x8.setCursor(0, 3);
   uint32_t DistRemain = globals.systemStatus == sysStat_Normal ? LubeConfig.DistancePerLube_Default : LubeConfig.DistancePerLube_Rain;
   DistRemain -= TravelDistance_highRes / 1000;
-  u8x8.printf("Mode: %10s\n\n", globals.systemStatustxt);
+  u8x8.printf("Mode: %10s\n", globals.systemStatustxt);
-  u8x8.printf("next Lube: %4dm\n\n", DistRemain);
+  u8x8.printf("next Lube: %4dm\n", DistRemain);
-  u8x8.printf("Tank: %8dml\n\n", LubeConfig.tankRemain_µl / 1000);
+  u8x8.printf("Tank: %8dml\n", PersistenceData.tankRemain_µl / 1000);
+  u8x8.printf("WiFi: %10s\n", (WiFi.getMode() == WIFI_AP ? "AP" : WiFi.getMode() == WIFI_OFF ? "OFF"
+                                                              : WiFi.getMode() == WIFI_STA   ? "CLIENT"
+                                                                                             : "UNKNOWN"));
   u8x8.refreshDisplay();
 }
 
@@ -456,7 +521,7 @@ void Button_Process()
       switch (buttonAction)
       {
       case BTN_TOGGLEWIFI:
-        startWiFiAP();
+        toggleWiFiAP();
         debugV("Starting WiFi AP");
         break;
 
@@ -496,12 +561,15 @@ void Button_Process()
   }
 }
 
-void startWiFiAP()
+void toggleWiFiAP(boolean shutdown)
 {
   if (WiFi.getMode() != WIFI_OFF)
   {
     WiFi.mode(WIFI_OFF);
     debugV("WiFi turned off");
+#ifdef WIFI_CLIENT
+    WiFiMaintainConnectionTicker.stop();
+#endif
   }
   else
   {
@@ -516,3 +584,9 @@ void startWiFiAP()
 #endif
   }
 }
+
+void SystemShutdown()
+{
+  StoreConfig_EEPROM();
+  ESP.restart();
+}

Software/ChainLube/src/rmtdbghelp.h

@@ -1,2 +1,5 @@
 const char helpCmd[] = "sysinfo    - System Info\r\n"
-                       "netinfo    - WiFi Info\r\n";
+                       "netinfo    - WiFi Info\r\n"
+                       "formatPDS  - Format Persistence EEPROM Data\r\n"
+                       "formatCFG  - Format Configuration EEPROM Data\r\n"
+                       "checkEE    - Check EEPROM with checksum\r\n";

Software/ChainLube/src/webui.cpp

@@ -10,6 +10,9 @@ uint16_t num_lubedist_normal;
 uint16_t num_lubedist_rain;
 uint16_t button_lubedist;
 
+uint16_t option_speedsource;
+uint16_t button_changeSource;
+
 uint16_t num_wheel_width;
 uint16_t num_wheel_ratio;
 uint16_t num_wheel_rim;
@@ -17,6 +20,10 @@ uint16_t button_wheelcalc;
 uint16_t num_wheel_ppr;
 uint16_t num_wheel_dist;
 
+uint16_t option_gps_baudrate;
+
+uint16_t option_can_source;
+
 uint16_t num_tank_capacity;
 uint16_t num_tank_notify;
 uint16_t num_dose_per_pulse;
@@ -54,6 +61,8 @@ void SettingChanged_Callback(Control *sender, int type)
     LubeConfig.amountPerDose_µl = ESPUI.getControl(num_dose_per_pulse)->value.toInt();
   else if (sender->id == num_purge_pulses)
     LubeConfig.BleedingPulses = ESPUI.getControl(num_purge_pulses)->value.toInt();
+  else if (sender->id == option_gps_baudrate)
+    LubeConfig.GPSBaudRate = (GPSBaudRate_t)ESPUI.getControl(option_gps_baudrate)->value.toInt();
 }
 
 void buttons_Callback(Control *sender, int type)
@@ -72,8 +81,8 @@ void buttons_Callback(Control *sender, int type)
 
   if (sender->id == button_reset_tank)
   {
-    LubeConfig.tankRemain_µl = LubeConfig.tankCapacity_ml * 1000;
+    PersistenceData.tankRemain_µl = LubeConfig.tankCapacity_ml * 1000;
-    ESPUI.print(label_tankRemain, String(LubeConfig.tankRemain_µl / 1000));
+    ESPUI.print(label_tankRemain, String(PersistenceData.tankRemain_µl / 1000));
   }
 
   if (sender->id == button_purge)
@@ -97,6 +106,20 @@ void buttons_Callback(Control *sender, int type)
   }
 }
 
+void speedSourceSelect_callback(Control *sender, int type)
+{
+  if (sender->id == option_speedsource)
+  {
+    LubeConfig.SpeedSource = (SpeedSource_t)ESPUI.getControl(option_speedsource)->value.toInt();
+    Serial.printf("LubeConfig.SpeedSource: %d", LubeConfig.SpeedSource);
+  }
+
+  if (sender->id == button_changeSource)
+  {
+    globals.systemStatus = sysStat_Shutdown;
+  }
+}
+
 void initWebUI()
 {
   tab_lube = ESPUI.addControl(ControlType::Tab, "Dosierung", "Dosierung");
@@ -108,18 +131,46 @@ void initWebUI()
   num_lubedist_normal = ESPUI.addControl(ControlType::Number, "Öl-Impuls alle x Meter (Normal)", String(LubeConfig.DistancePerLube_Default), ControlColor::Emerald, tab_lube, &SettingChanged_Callback);
   num_lubedist_rain = ESPUI.addControl(ControlType::Number, "Öl-Impuls alle x Meter (Regen)", String(LubeConfig.DistancePerLube_Rain), ControlColor::Emerald, tab_lube, &SettingChanged_Callback);
 
+  option_speedsource = ESPUI.addControl(ControlType::Select, "Geschwindigkeit Quelle", "", ControlColor::Wetasphalt, tab_wheel, &speedSourceSelect_callback);
+  button_changeSource = ESPUI.addControl(ControlType::Button, "neue Quelle übernehmen. ACHTUNG: Gerät startet neu!", "Übernehmen", ControlColor::Wetasphalt, tab_wheel, &speedSourceSelect_callback);
+  for (int i = 0; i < SpeedSourceString_Elements; i++)
+  {
+    ESPUI.addControl(ControlType::Option, SpeedSourceString[i], String(i), ControlColor::Wetasphalt, option_speedsource);
+  }
+
+  switch (LubeConfig.SpeedSource)
+  {
+  case SOURCE_IMPULSE:
     num_wheel_width = ESPUI.addControl(ControlType::Number, "Reifenbreite (mm)", String(LubeConfig.TireWidth_mm), ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
     num_wheel_ratio = ESPUI.addControl(ControlType::Number, "Höhe/Breite-Verhältniss", String(LubeConfig.TireWidthHeight_Ratio), ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
     num_wheel_rim = ESPUI.addControl(ControlType::Number, "Felgendurchmesser (Zoll)", String(LubeConfig.RimDiameter_Inch), ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
     button_wheelcalc = ESPUI.addControl(ControlType::Button, "Abrollumfang aus Reifendaten berechnen", "Berechnen", ControlColor::Peterriver, tab_wheel, &buttons_Callback);
-  num_wheel_dist = ESPUI.addControl(ControlType::Number, "Wegstrecke pro Radumdrehung (mm)", String(LubeConfig.DistancePerRevolution_mm), ControlColor::Wetasphalt, tab_wheel, &SettingChanged_Callback);
+    num_wheel_dist = ESPUI.addControl(ControlType::Number, "Wegstrecke pro Radumdrehung (mm)", String(LubeConfig.DistancePerRevolution_mm), ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
-  num_wheel_ppr = ESPUI.addControl(ControlType::Number, "Sensorimpulse pro Umdrehung", String(LubeConfig.PulsePerRevolution), ControlColor::Wetasphalt, tab_wheel, &SettingChanged_Callback);
+    num_wheel_ppr = ESPUI.addControl(ControlType::Number, "Sensorimpulse pro Umdrehung", String(LubeConfig.PulsePerRevolution), ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
+    break;
+  case SOURCE_GPS:
+    option_gps_baudrate = ESPUI.addControl(ControlType::Select, "Baudrate GPS-Modul", "", ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
+    for (int i = 0; i < GPSBaudRateString_Elements; i++)
+    {
+      ESPUI.addControl(ControlType::Option, GPSBaudRateString[i], String(i), ControlColor::Peterriver, option_gps_baudrate);
+    }
+    break;
+  case SOURCE_CAN:
+    option_can_source = ESPUI.addControl(ControlType::Select, "CAN-Bus Quelle", "", ControlColor::Peterriver, tab_wheel, &SettingChanged_Callback);
+    for (int i = 0; i < CANSourceString_Elements; i++)
+    {
+      ESPUI.addControl(ControlType::Option, CANSourceString[i], String(i), ControlColor::Peterriver, option_can_source);
+    }
+    break;
+  case SOURCE_TIME:
+    break;
+  }
 
   num_tank_capacity = ESPUI.addControl(ControlType::Number, "Tankinhalt maximal (ml)", String(LubeConfig.tankCapacity_ml), ControlColor::Carrot, tab_tank, &SettingChanged_Callback);
   num_tank_notify = ESPUI.addControl(ControlType::Number, "Tankinhalt Warnung (%)", String(LubeConfig.TankRemindAtPercentage), ControlColor::Carrot, tab_tank, &SettingChanged_Callback);
   num_dose_per_pulse = ESPUI.addControl(ControlType::Number, "Menge pro Pumpenimpuls (µl)", String(LubeConfig.amountPerDose_µl), ControlColor::Carrot, tab_tank, &SettingChanged_Callback);
 
-  label_tankRemain = ESPUI.addControl(ControlType::Label, "Tankinhalt verbleibend (ml, geschätzt)", String(LubeConfig.tankRemain_µl / 1000), ControlColor::Alizarin, tab_maintenance);
+  label_tankRemain = ESPUI.addControl(ControlType::Label, "Tankinhalt verbleibend (ml, geschätzt)", String(PersistenceData.tankRemain_µl / 1000), ControlColor::Alizarin, tab_maintenance);
   button_reset_tank = ESPUI.addControl(ControlType::Button, "Tankinhalt zurücksetzen", "Reset", ControlColor::Alizarin, tab_maintenance, &buttons_Callback);
   num_purge_pulses = ESPUI.addControl(ControlType::Number, "Entlüftung Impulse", String(LubeConfig.BleedingPulses), ControlColor::Alizarin, tab_maintenance, &SettingChanged_Callback);
   button_purge = ESPUI.addControl(ControlType::Button, "Leitung Entlüften", "Start", ControlColor::Alizarin, tab_maintenance, &buttons_Callback);
@@ -133,5 +184,5 @@ void initWebUI()
 
 void UpdateWebUI()
 {
-     ESPUI.print(label_tankRemain, String(LubeConfig.tankRemain_µl / 1000) + " ml" );
+  ESPUI.print(label_tankRemain, String(PersistenceData.tankRemain_µl / 1000) + " ml");
 }