Serial debugging, when 1wire seonsors are missing. -> Check Board revision

esp32/custom_platformio.ini.example

@@ -1,16 +1,41 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
 [env:esp32doit-devkit-v1]
-platform = espressif32
+platform = espressif32@6.3.2
 board = esp32doit-devkit-v1
 framework = arduino
 build_flags = -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+    -DPLANT0_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT1_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT2_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT3_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT4_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT5_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DPLANT6_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
+    -DTIMED_LIGHT_PIN=CUSTOM1_PIN5
+    -DFLOWMETER_PIN=CUSTOM1_PIN1
+    -DANALOG_WATER=GPIO_NUM_34
+
 board_build.partitions = defaultWithSmallerSpiffs.csv
 
+;#https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/partition-tables.html
+
+
 ; the latest development brankitchen-lightch (convention V3.0.x) 
-lib_deps = ArduinoJson@6.16.1
+lib_deps = bblanchon/ArduinoJson@^6.20.1
-            OneWire
+            paulstoffregen/OneWire@^2.3.6
-            DallasTemperature
+            milesburton/DallasTemperature@^3.11.0
-            pololu/VL53L0X
+            pololu/VL53L0X@^1.3.1
             https://github.com/homieiot/homie-esp8266.git#develop
 
-; add additional parameter, like the upload port
+[platformio]
-upload_port=/dev/ttyUSB1
+
+extra_configs = custom_platformio.ini

esp32/host/upload-via-mqtt.sh

@@ -17,6 +17,8 @@ if [ ! -f $firmwareFile ]; then
 	echo "the script $0 must be started in host/ sub directory"
 	exit 2
 fi
+echo "Firmware changed:"
+ls -l $firmwareFile
 
 mosquitto_pub -h $mqttHost -t "${mqttPrefix}${homieId}/stay/alive/set" -m "1" -r
 echo "Waiting ..."

esp32/include/ControllerConfiguration.h

@@ -54,6 +54,15 @@
 #define SENSOR_PLANT5 GPIO_NUM_39 /**< SENSOR_VIN */
 #define SENSOR_PLANT6 GPIO_NUM_36 /**< SENSOR_VP  */
 
+#ifdef HWREVISION07
+#define OUTPUT_PUMP0 GPIO_NUM_17 /**< GPIO 17 */
+#define OUTPUT_PUMP1 GPIO_NUM_5  /**< GPIO 5 */
+#define OUTPUT_PUMP2 GPIO_NUM_18 /**< GPIO 18 */
+#define OUTPUT_PUMP3 GPIO_NUM_19 /**< GPIO 19 */
+#define OUTPUT_PUMP4 GPIO_NUM_21 /**< GPIO 21 */
+#define OUTPUT_PUMP5 GPIO_NUM_22 /**< GPIO 22  */
+#define OUTPUT_PUMP6 GPIO_NUM_23 /**< GPIO 23 */
+#else
 #define OUTPUT_PUMP0 GPIO_NUM_15 /**< GPIO 15 */
 #define OUTPUT_PUMP1 GPIO_NUM_5  /**< GPIO 5 */
 #define OUTPUT_PUMP2 GPIO_NUM_18 /**< GPIO 18 */
@@ -61,18 +70,35 @@
 #define OUTPUT_PUMP4 GPIO_NUM_21 /**< GPIO 21 */
 #define OUTPUT_PUMP5 GPIO_NUM_22 /**< GPIO 22  */
 #define OUTPUT_PUMP6 GPIO_NUM_23 /**< GPIO 23 */
+#endif
 
-#define OUTPUT_ENABLE_SENSOR GPIO_NUM_14 /**< GPIO 14 - Enable Sensors  */
 #define OUTPUT_ENABLE_PUMP   GPIO_NUM_13 /**< GPIO 13 - Enable Pumps  */
-
+#ifdef HWREVISION07 
+#define OUTPUT_ENABLE_SENSOR     GPIO_NUM_16 /**< GPIO 16 - Enable Sensors */
+#define SENSOR_ONEWIRE      GPIO_NUM_2   /** GPIO 02 - Temperatur sensor, Battery and other cool onewire stuff */
+#else
+#define OUTPUT_ENABLE_SENSOR GPIO_NUM_14 /**< GPIO 14 - Enable Sensors  */
 #define SENSOR_ONEWIRE      GPIO_NUM_4 /**< GPIO 12 - Temperatur sensor, Battery and other cool onewire stuff */
+#endif
+#ifdef ANALOG_WATER
+#define SENSOR_TANK_ANALOG     ANALOG_WATER /**< GPIO 34 - analog water sensor (GPIO_NUM_34) */ 
+#else
+#ifdef HWREVISION07
+
+#else
 #define SENSOR_TANK_SDA     GPIO_NUM_17 /**< GPIO 17 - water sensor SDA */ 
 #define SENSOR_TANK_SCL     GPIO_NUM_16 /**< GPIO 16 - water sensor SCL */
+#endif
+#endif
 #define BUTTON              GPIO_NUM_0  /**< GPIO 0 - Fix button of NodeMCU */
 
 #define CUSTOM1_PIN1        GPIO_NUM_34   /** direct gpio */
 #define CUSTOM1_PIN3        GPIO_NUM_35   /** direct gpio */
+#ifdef HWREVISION07
+#define CUSTOM1_PIN5        GPIO_NUM_4   /** mosfet controlled */
+#else
 #define CUSTOM1_PIN5        GPIO_NUM_2   /** mosfet controlled */
+#endif
 #define CUSTOM1_PIN7        GPIO_NUM_12   /** mosfet controlled */
 
 /* @} */
@@ -85,18 +111,29 @@
     #define FLOWMETER_PULSES_PER_ML 2.2
     #define FIRMWARE_FEATURE1   "Flow"
 #else
+    #ifdef ANALOG_WATER
+    #define FIRMWARE_FEATURE1   "Water"
+    #else
     #define FIRMWARE_FEATURE1   ""
+    #endif
 #endif
 
 #ifdef TIMED_LIGHT_PIN
     #define FIRMWARE_FEATURE2   "Light"
 #else
-    #define FIRMWARE_FEATURE2   ""
+        #define FIRMWARE_FEATURE2   ""
 #endif
 
+
 #define FIRMWARE_BASENAME "PlantControl"
 #define FIRMWARE_NAME FIRMWARE_BASENAME FIRMWARE_FEATURE1 FIRMWARE_FEATURE2
-#define FIRMWARE_VERSION "3.01 HW0.10b" 
+#define FIRMWARE_VERSIONNMUMBER "3.021"
+
+#ifdef HWREVISION07
+    #define FIRMWARE_VERSION FIRMWARE_VERSIONNMUMBER " HW0.7"
+#else
+    #define FIRMWARE_VERSION FIRMWARE_VERSIONNMUMBER " HW0.10b"
+#endif
 
 #define MOIST_SENSOR_MAX_FRQ               5200 // 60kHz (500Hz margin)
 #define MOIST_SENSOR_MIN_FRQ                500 // 0.5kHz (500Hz margin)
@@ -104,28 +141,36 @@
 #define ANALOG_SENSOR_MAX_MV                1300 //successive approximation of good range
 #define ANALOG_SENSOR_MIN_MV                100  //successive approximation of good range
 
-#define SOLAR_VOLT_FACTOR           11
+#ifdef HWREVISION07
+#define SOLAR_VOLT_FACTOR           (4.0306f) /**< 100k and 33k voltage dividor */
+#else
+#define SOLAR_VOLT_FACTOR           (11.0f) /**< Configuratiion before dd3888ba52f51338788820a933c0a6f4bee78ed5 */
+#endif
 #define BATTSENSOR_INDEX_SOLAR      0
 #define BATTSENSOR_INDEX_BATTERY    1
 
 #define MQTT_TIMEOUT                (1000 * 60) /**< After 10 seconds, MQTT is expected to be connected */
 #define ESP_STALE_TIMEOUT           (MQTT_TIMEOUT+(700*1000))
+#define ESP_ADC_MAX                 4095
 
 #define MAX_PLANTS          7
 #define SOLAR_CHARGE_MIN_VOLTAGE    7   /**< Sun is rising (morning detected) */
 #define SOLAR_CHARGE_MAX_VOLTAGE    9   /**< Sun is shining (noon)  */
 #define SOLAR_MAX_VOLTAGE_POSSIBLE  100 /**< higher values are treated as not connected sensor  */
 #define VOLT_MAX_BATT               4.2f
-#define VOLT_MIN_BATT               3.0f    /**< Minimum battery voltage for normal operation */
+#define VOLT_SENSORS_BATT           3.6f    /**< Minimum battery voltage for sensor (and pump) usage */
-#define LOWVOLT_SLEEP_FACTOR        3       /**< Factor for nightsleep delay, if the battery drops below minimum (@see VOLT_MIN_BATT) */
+#define VOLT_MIN_BATT               3.4f    /**< Minimum battery voltage for normal operation */
-#define LOWVOLT_SLEEP_MINIMUM       1800    /**< At low voltage sleep at least for 30 minutes */
+#define LOWVOLT_SLEEP_FACTOR        6       /**< Factor for nightsleep delay, if the battery drops below minimum (@see VOLT_MIN_BATT) */
+#define LOWVOLT_SLEEP_MINIMUM       7200    /**< At low voltage sleep at least for 120 minutes (two hours) */
+
+#define WATER_LEVEL_MINIMUM         500      /**< Minimum Analog value (1023 is the maximum)*/
 
 #define MAX_CONFIG_SETTING_ITEMS 100 /**< Parameter, that can be configured in Homie */
 #define MAX_JSON_CONFIG_FILE_SIZE_CUSTOM 2500
 
-#define TEMPERATUR_TIMEOUT              3000    /**< 3 Seconds timeout for the temperatures sensors */
+#define TEMPERATUR_TIMEOUT              5000    /**< 5 Seconds timeout for the temperatures sensors */
-#define WATERSENSOR_TIMEOUT             3000    /**< 3 Seconds timeout for the water distance sensor */
+#define WATERSENSOR_TIMEOUT             1000    /**< 1 Seconds timeout for the water distance sensor */
-#define WATERSENSOR_CYCLE               10       /**< 5 sensor measurement are performed */
+#define WATERSENSOR_CYCLE               10      /**< 10 sensor measurement are performed */
 #define DS18B20_RESOLUTION              9       /**< 9bit temperature resolution -> 0.5°C steps */
 
 #define UTC_OFFSET_DE                   3600    /* UTC offset in seconds for Germany */

esp32/include/HomieConfiguration.h

@@ -75,9 +75,6 @@ HomieNode stayAlive("stay", "alive", "alive");  /**< Necessary for Mqtt Active C
 HomieSetting<long> deepSleepTime("sleep", "time in seconds to sleep");
 HomieSetting<long> deepSleepNightTime("nightsleep", "time in seconds to sleep (0 uses same setting: deepsleep at night, too)");
 HomieSetting<long> pumpIneffectiveWarning("pumpConsecutiveWarn", "if the pump was triggered this amount directly after each cooldown, without resolving dryness, warn");
-HomieSetting<long> waterLevelMax("tankmax", "distance (mm) at maximum water level");
-HomieSetting<long> waterLevelMin("tankmin", "distance (mm) at minimum water level (pumps still covered)");
-HomieSetting<long> waterLevelWarn("tankwarn", "warn (mm) if below this water level %");
 HomieSetting<long> waterLevelVol("tankVolume", "(ml) between minimum and maximum");
 HomieSetting<const char *> lipoSensorAddr("lipoDSAddr", "1wire address for lipo temperature sensor");
 HomieSetting<const char *> waterSensorAddr("tankDSAddr", "1wire address for water temperature sensor");

esp32/include/LogDefines.h

@@ -25,7 +25,8 @@
 #define LOG_SENSORMODE_UNKNOWN "Unknown sensor mode requested"
 #define LOG_SENSORMODE_UNKNOWN_CODE -5
 
-#define LOG_SENSOR_MISSING -6
+#define LOG_SENSOR_MISSING_ERROR_MESSAGE "1Wire: sensors found"
+#define LOG_SENSOR_MISSING_ERROR_CODE -6
 
 #define LOG_PUMP_AND_DOWNLOADMODE "Download mode, ignoring pump request"
 #define LOG_PUMP_AND_DOWNLOADMODE_CODE 2
@@ -46,5 +47,10 @@
 #define LOG_SLEEP_CYCLE 102
 #define LOG_MISSING_PUMP -4
 #define LOG_BOOT_ERROR_DETECTION 10000
+#define LOG_BOOT_ERROR_IMG_UNDEFINED        (LOG_BOOT_ERROR_DETECTION + 1)
+#define LOG_BOOT_ERROR_IMG_NEW              (LOG_BOOT_ERROR_DETECTION + 2)
+#define LOG_BOOT_ERROR_IMG_INVALID          (LOG_BOOT_ERROR_DETECTION + 3)
+#define LOG_BOOT_ERROR_IMG_VALID            (LOG_BOOT_ERROR_DETECTION + 4)
+#define LOG_BOOT_ERROR_IMG_PENDING_VERIFY   (LOG_BOOT_ERROR_DETECTION + 5)
 #define LOG_SOLAR_CHARGER_MISSING 300
 #endif

esp32/platformio.ini

@@ -22,6 +22,9 @@ build_flags = -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
     -DPLANT6_SENSORTYPE=FREQUENCY_MOD_RESISTANCE_PROBE
     -DTIMED_LIGHT_PIN=CUSTOM1_PIN5
     -DFLOWMETER_PIN=CUSTOM1_PIN1
+    -DANALOG_WATER=GPIO_NUM_34
+    ; Optional: Compatibilitymode for hardware revision 0.7
+    ;-DHWREVISION07=1
 
 board_build.partitions = defaultWithSmallerSpiffs.csv
 

esp32/src/PlantCtrl.cpp

@@ -54,8 +54,10 @@ void Plant::init(void)
                                                   { return ((candidate >= 0) && (candidate <= 100)); });
 
     /* Initialize Hardware */
+    pinMode(this->mPinPump, OUTPUT);
+    digitalWrite(this->mPinPump, LOW);
     ledcSetup(this->mPlantId, PWM_FREQ, PWM_BITS);
-    ledcAttachPin(mPinPump, this->mPlantId);
+    ledcAttachPin(this->mPinPump, this->mPlantId);
     ledcWrite(this->mPlantId, 0);
     pinMode(this->mPinSensor, INPUT);
 }

esp32/src/main.cpp

@@ -51,7 +51,10 @@ extern "C" bool verifyRollbackLater(){
  *                                     DEFINES
  ******************************************************************************/
 #define AMOUNT_SENOR_QUERYS 8
+#ifdef ANALOG_WATER
+#else
 #define MAX_TANK_DEPTH 5000
+#endif
 #define REBOOT_LOOP_DETECTION_ERROR 5
 
 /******************************************************************************
@@ -77,9 +80,9 @@ RTC_DATA_ATTR long consecutiveWateringPlant[MAX_PLANTS] = {0};
 /******************************************************************************
  *                            LOCAL VARIABLES
  ******************************************************************************/
-bool volatile mDownloadMode = false; /**< Controller must not sleep */
+bool volatile vmDownloadMode = false; /**< Controller must not sleep */
-bool volatile mSensorsRead = false;  /**< Sensors are read without Wifi or MQTT */
+bool volatile vmSensorsRead = false;  /**< Sensors are read without Wifi or MQTT */
-int volatile pumpToRun = -1;         /** pump to run  at the end of the cycle */
+int volatile vmPumpToRun = -1;         /** pump to run  at the end of the cycle */
 int volatile selfTestPumpRun = -1;   /** pump to run  at the end of the cycle */
 
 bool mConfigured = false;
@@ -148,23 +151,23 @@ void finsihedCycleSucessfully()
   esp_ota_img_states_t ota_state;
   if (esp_ota_get_state_partition(running, &ota_state) == ESP_OK)
   {
-    log(LOG_LEVEL_INFO, "Get State Partition was Successfull", LOG_BOOT_ERROR_DETECTION); 
+    log(LOG_LEVEL_DEBUG, "Get State Partition was Successfull", LOG_BOOT_ERROR_DETECTION); 
     
     if(ota_state == ESP_OTA_IMG_UNDEFINED){
-      log(LOG_LEVEL_INFO, "ESP_OTA_IMG_UNDEFINED should not happen with rollback", LOG_BOOT_ERROR_DETECTION);
+      log(LOG_LEVEL_DEBUG, "ESP_OTA_IMG_UNDEFINED should not happen with rollback", LOG_BOOT_ERROR_IMG_UNDEFINED);
     }
     if(ota_state == ESP_OTA_IMG_NEW){
-      log(LOG_LEVEL_INFO, "ESP_OTA_IMG_NEW", LOG_BOOT_ERROR_DETECTION);
+      log(LOG_LEVEL_DEBUG, "ESP_OTA_IMG_NEW", LOG_BOOT_ERROR_IMG_NEW);
     }
     if(ota_state == ESP_OTA_IMG_INVALID){
-      log(LOG_LEVEL_INFO, "ESP_OTA_IMG_INVALID", LOG_BOOT_ERROR_DETECTION);
+      log(LOG_LEVEL_DEBUG, "ESP_OTA_IMG_INVALID", LOG_BOOT_ERROR_IMG_INVALID);
     }
     if(ota_state == ESP_OTA_IMG_VALID){
-      log(LOG_LEVEL_INFO, "ESP_OTA_IMG_VALID", LOG_BOOT_ERROR_DETECTION);
+      log(LOG_LEVEL_DEBUG, "ESP_OTA_IMG_VALID", LOG_BOOT_ERROR_IMG_VALID);
     }
     if (ota_state == ESP_OTA_IMG_PENDING_VERIFY)
     {
-      log(LOG_LEVEL_INFO, "ESP_OTA_IMG_PENDING_VERIFY Diagnostics completed successfully! Marking as valid", LOG_BOOT_ERROR_DETECTION);
+      log(LOG_LEVEL_DEBUG, "ESP_OTA_IMG_PENDING_VERIFY Diagnostics completed successfully! Marking as valid", LOG_BOOT_ERROR_IMG_PENDING_VERIFY);
       esp_ota_mark_app_valid_cancel_rollback();
     }
   }
@@ -172,11 +175,11 @@ void finsihedCycleSucessfully()
 
 void espDeepSleep(bool afterPump = false)
 {
-  if (mDownloadMode)
+  /* download mode or normal operation should restore device status*/
+  finsihedCycleSucessfully();
+  if (vmDownloadMode)
   {
     log(LOG_LEVEL_DEBUG, "abort deepsleep, DownloadMode active", LOG_DEBUG_CODE);
-    // if we manage to get to the download mode, the device can be restored
-    finsihedCycleSucessfully();
     return;
   }
   if (aliveWasRead())
@@ -201,7 +204,7 @@ void espDeepSleep(bool afterPump = false)
 
   esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
 
-  long secondsToSleep = -1;
+  unsigned long secondsToSleep = -1;
 
   if (afterPump)
   {
@@ -210,9 +213,8 @@ void espDeepSleep(bool afterPump = false)
   }
   else
   {
-    if (mBatteryVoltage < VOLT_MIN_BATT) 
+    if ( ((int) (mBatteryVoltage * 100)) < ((int) (VOLT_MIN_BATT * 100)) )
     {
-      log(LOG_LEVEL_INFO, String(String(mBatteryVoltage) + "V! Almost empty -> deepSleepNight " + String(LOWVOLT_SLEEP_FACTOR)) + " times", LOG_SLEEP_LOWVOLTAGE);
       /* use the largest sleeping duration */
       if (deepSleepNightTime.get() > deepSleepTime.get()) {
         secondsToSleep = (deepSleepNightTime.get() * LOWVOLT_SLEEP_FACTOR);
@@ -223,6 +225,7 @@ void espDeepSleep(bool afterPump = false)
       if (secondsToSleep < LOWVOLT_SLEEP_MINIMUM) {
         secondsToSleep = LOWVOLT_SLEEP_MINIMUM;
       }
+      log(LOG_LEVEL_INFO, String(String(mBatteryVoltage) + "V! Almost empty -> deepSleepNight " + String(LOWVOLT_SLEEP_FACTOR)) + " times (" + secondsToSleep + "s)", LOG_SLEEP_LOWVOLTAGE);
     }
     else if (mSolarVoltage < SOLAR_CHARGE_MIN_VOLTAGE)
     {
@@ -236,12 +239,14 @@ void espDeepSleep(bool afterPump = false)
     }
   }
 
-  finsihedCycleSucessfully();
+  #define SECOND2USECOND_FACTOR (1000U * 1000U)
+
   /* sleep always at least one second */
-  if (secondsToSleep < 0) {
+  if (secondsToSleep <= 0) {
-    secondsToSleep = 1;
+    secondsToSleep = (unsigned long) (UINT64_MAX / SECOND2USECOND_FACTOR);
   }
-  esp_sleep_enable_timer_wakeup((secondsToSleep * 1000U * 1000U));
+  esp_sleep_enable_timer_wakeup((secondsToSleep * SECOND2USECOND_FACTOR));
+  #undef SECOND2USECOND_FACTOR
   if (aliveWasRead())
   {
     delay(1000);
@@ -354,68 +359,35 @@ void readPowerSwitchedSensors()
     Plant plant = mPlants[i];
     switch (plant.getSensorMode())
     {
-      case FREQUENCY_MOD_RESISTANCE_PROBE: {
+      case FREQUENCY_MOD_RESISTANCE_PROBE:
         Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " hz " << mPlants[i].getCurrentMoisturePCT() << "%" <<  endl;
         break;
-      }
+      case ANALOG_RESISTANCE_PROBE :
-      case ANALOG_RESISTANCE_PROBE : {
         Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " mV " << mPlants[i].getCurrentMoisturePCT() << "%" <<  endl;
         break;
-      }
+      default:
-      case NONE : {
+      case NONE:
-
+        break;
-      }
     }
   }
 
-  Wire.begin(SENSOR_TANK_SDA, SENSOR_TANK_SCL);
+  #ifdef ANALOG_WATER
-  // Source: https://www.st.com/resource/en/datasheet/vl53l0x.pdf
+  Serial << "Analog water measurement " << WATERSENSOR_CYCLE << " cycles.." <<  endl;
-  tankSensor.setAddress(0x52);
+  Serial.flush();
-  tankSensor.setBus(&Wire);
+  
-  delay(50);
+  /* Read analog Water sensor*/
-  Serial << "Distance sensor init" << endl;
+  for(int i=0; i < WATERSENSOR_CYCLE; i++)
-  long start = millis();
-  bool distanceReady = false;
-  while ((start + WATERSENSOR_TIMEOUT) > millis())
   {
-    if (tankSensor.init())
+    int value = analogRead(SENSOR_TANK_ANALOG);
-    {
+    Serial << "Round " << i << " measurement: " << value << " mV " <<  endl;
-      distanceReady = true;
+    waterRawSensor.add(value);
-      break;
+    delay(7);
-    }
-    else
-    {
-      delay(200);
-    }
-  }
-  if (distanceReady)
-  {
-    waterRawSensor.clear();
-    tankSensor.setSignalRateLimit(0.1);
-    // increase laser pulse periods (defaults are 14 and 10 PCLKs)
-    tankSensor.setVcselPulsePeriod(VL53L0X::VcselPeriodPreRange, 18);
-    tankSensor.setVcselPulsePeriod(VL53L0X::VcselPeriodFinalRange, 14);
-    tankSensor.setMeasurementTimingBudget(200000);
-    Serial << "Distance sensor measuring" << endl;
-    for (int readCnt = 0; readCnt < WATERSENSOR_CYCLE; readCnt++)
-    
-    {
-      if (!tankSensor.timeoutOccurred())
-      {
-        uint16_t distance = tankSensor.readRangeSingleMillimeters();
-        if (distance < MAX_TANK_DEPTH)
-        {
-          waterRawSensor.add(distance);
-        }
-      }
-      delay(50);
-    }
-    Serial << "Distance sensor " << waterRawSensor.getMedian() << " mm" << endl;
-  }
-  else
-  {
-    log(LOG_LEVEL_WARN, LOG_TANKSENSOR_FAIL_DETECT, LOG_TANKSENSOR_FAIL_DETECT_CODE);
   }
+  Serial << "Analog water measurement done" <<  endl;
+  #else
+  Serial << "Analog water measurement deactivated" <<  endl;
+  #endif
+  Serial.flush();
 
   /* deactivate the sensors */
   digitalWrite(OUTPUT_ENABLE_SENSOR, LOW);
@@ -431,12 +403,12 @@ void onHomieEvent(const HomieEvent &event)
   case HomieEventType::SENDING_STATISTICS:
     break;
   case HomieEventType::MQTT_READY:
-    if (mSensorsRead)
+    if (vmSensorsRead)
     {
       Serial.printf("Timeout occured... too late!\r\n");
       return;
     }
-    mSensorsRead = true; // MQTT is working, deactivate timeout logic
+    vmSensorsRead = true; // MQTT is working, deactivate timeout logic
 
     configTime(UTC_OFFSET_DE, UTF_OFFSET_DE_DST, ntpServer.get());
     startMQTTRoundtripTest();
@@ -447,7 +419,7 @@ void onHomieEvent(const HomieEvent &event)
       mPlants[i].deactivatePump();
     }
     otaRunning = true;
-    mDownloadMode = true;
+    vmDownloadMode = true;
     break;
   case HomieEventType::OTA_SUCCESSFUL:
     digitalWrite(OUTPUT_ENABLE_SENSOR, LOW);
@@ -464,12 +436,21 @@ int determineNextPump(bool isLowLight)
   int pumpToUse = -1;
   for (int i = 0; i < MAX_PLANTS; i++)
   {
+    Plant plant = mPlants[i];
+    switch (plant.getSensorMode())
+    {
+      case FREQUENCY_MOD_RESISTANCE_PROBE:
+        log(LOG_LEVEL_DEBUG, 
+              String("Plant " + String(i) + " measurement: " + String(plant.getCurrentMoistureRaw()) + " hz " + String(plant.getCurrentMoisturePCT()) + "%"),
+              LOG_DEBUG_CODE);
+        break;
+    }
+
     bool wateralarm = consecutiveWateringPlant[i] >= pumpIneffectiveWarning.get();
     if (wateralarm)
     {
       log(LOG_LEVEL_ERROR, String(String(i) + " Plant still dry after " + String(consecutiveWateringPlant[i]) + " watering attempts"), LOG_PUMP_INEFFECTIVE);
     }
-    Plant plant = mPlants[i];
     if (!plant.isPumpTriggerActive())
     {
       plant.publishState(PLANTSTATE_NUM_DEACTIVATED, PLANTSTATE_STR_DEACTIVATED);
@@ -530,7 +511,7 @@ int determineNextPump(bool isLowLight)
         }
         else
         {
-          if (mDownloadMode)
+          if (vmDownloadMode)
           {
             plant.publishState(PLANTSTATE_NUM_ACTIVE_SUPESSED, PLANTSTATE_STR_ACTIVE_SUPESSED);
           }
@@ -590,15 +571,15 @@ bool aliveHandler(const HomieRange &range, const String &value)
 
   if (value.equals("ON") || value.equals("On") || value.equals("1"))
   {
-    mDownloadMode = true;
+    vmDownloadMode = true;
   }
   else
   {
-    if (mDownloadMode)
+    if (vmDownloadMode)
     {
       esp_restart();
     }
-    mDownloadMode = false;
+    vmDownloadMode = false;
   }
 
   return true;
@@ -675,11 +656,11 @@ void initPumpLogic()
   pcnt_counter_resume(unit);
 #endif
   pumpStartTime = millis();
-  pumpTarget = millis() + (mPlants[pumpToRun].getPumpDuration() * 1000);
+  pumpTarget = millis() + (mPlants[vmPumpToRun].getPumpDuration() * 1000);
   #ifdef FLOWMETER_PIN
     log(LOG_LEVEL_INFO, "Starting pump " + String(pumpToRun) + " for " + String(mPlants[pumpToRun].getPumpDuration()) + "s or " + String(pumpTargetMl) + "ml", LOG_PUMP_STARTED_CODE);
   #else
-    log(LOG_LEVEL_INFO, "Starting pump " + String(pumpToRun) + " for " + String(mPlants[pumpToRun].getPumpDuration()) + "s", LOG_PUMP_STARTED_CODE);
+    log(LOG_LEVEL_INFO, "Starting pump " + String(vmPumpToRun) + " for " + String(mPlants[vmPumpToRun].getPumpDuration()) + "s", LOG_PUMP_STARTED_CODE);
   #endif
   
 
@@ -689,7 +670,7 @@ void initPumpLogic()
   delay(100);
   WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 1);
 
-  mPlants[pumpToRun].activatePump();
+  mPlants[vmPumpToRun].activatePump();
 }
 
 void pumpActiveLoop()
@@ -700,7 +681,7 @@ void pumpActiveLoop()
   {
     initPumpLogic();
     pumpStarted = true;
-    rtcLastWateringPlant[pumpToRun] = getCurrentTime();
+    rtcLastWateringPlant[vmPumpToRun] = getCurrentTime();
   }
 
   bool mqttUpdateTick = false;
@@ -742,12 +723,12 @@ void pumpActiveLoop()
 
   if (millis() > pumpTarget)
   {
-    mPlants[pumpToRun].setProperty("watertime").send(String(duration));
+    mPlants[vmPumpToRun].setProperty("watertime").send(String(duration));
     targetReached = true;
   }
   else if (mqttUpdateTick)
   {
-    mPlants[pumpToRun].setProperty("watertime").send(String(duration));
+    mPlants[vmPumpToRun].setProperty("watertime").send(String(duration));
   }
 
   if (targetReached)
@@ -755,11 +736,11 @@ void pumpActiveLoop()
 
     // disable all
     digitalWrite(OUTPUT_ENABLE_PUMP, LOW);
-    mPlants[pumpToRun].deactivatePump();
+    mPlants[vmPumpToRun].deactivatePump();
     // disable loop, to prevent multi processing
     pumpStarted = false;
     // if runtime is larger than cooldown, else it would run continously
-    rtcLastWateringPlant[pumpToRun] = getCurrentTime();
+    rtcLastWateringPlant[vmPumpToRun] = getCurrentTime();
     espDeepSleep(true);
   }
 }
@@ -791,6 +772,11 @@ void safeSetup()
   digitalWrite(OUTPUT_ENABLE_PUMP, LOW);
 
   pinMode(OUTPUT_ENABLE_SENSOR, OUTPUT);
+  digitalWrite(OUTPUT_ENABLE_SENSOR, LOW);
+
+  #ifdef ANALOG_WATER
+  pinMode(SENSOR_TANK_ANALOG, INPUT);
+  #endif
 
   static_assert(HomieInternals::MAX_CONFIG_SETTING_SIZE >= MAX_CONFIG_SETTING_ITEMS, "Limits.hpp not adjusted MAX_CONFIG_SETTING_ITEMS");
   if (HomieInternals::MAX_CONFIG_SETTING_SIZE < MAX_CONFIG_SETTING_ITEMS)
@@ -819,9 +805,6 @@ void safeSetup()
   deepSleepNightTime.setDefaultValue(600);
   ntpServer.setDefaultValue("pool.ntp.org");
 
-  /* waterLevelMax 1000    */          /* 100cm in mm */
-  waterLevelMin.setDefaultValue(50);   /* 5cm in mm */
-  waterLevelWarn.setDefaultValue(500); /* 50cm in mm */
   waterLevelVol.setDefaultValue(5000); /* 5l in ml */
   lipoSensorAddr.setDefaultValue("");
   waterSensorAddr.setDefaultValue("");
@@ -848,24 +831,39 @@ void safeSetup()
   {
     mPlants[i].initSensors();
   }
-  readPowerSwitchedSensors();
-  Serial << "Reading Homie Config..." << endl;
-  Homie.setup();
-
 
   /************************* Start One-Wire bus ***************/
   int tempInitStartTime = millis();
   uint8_t sensorCount = 0U;
 
   /* Required to read the temperature at least once */
-  while ((sensorCount == 0 || !battery.isFound()) && millis() < tempInitStartTime + TEMPERATUR_TIMEOUT)
+  for(int i=0;
+      ((sensorCount == 0 || !battery.isFound()) && millis() < tempInitStartTime + TEMPERATUR_TIMEOUT);
+      i++)
   {
     sensors.begin();
     battery.begin();
     sensorCount = sensors.getDS18Count();
-    delay(50);
+    if (i > 1)
+    {
+      Serial << "DS18S20 count: " << sensorCount << ", battery is found: " << battery.isFound() << " ( loop: " << i << " )" << endl;
+    }
+    delay(100);
   }
 
+  readOneWireSensors();
+  mBatteryVoltage = battery.getVoltage(BATTSENSOR_INDEX_BATTERY);
+
+  if ( ((int) (mBatteryVoltage * 100)) >= ((int) (VOLT_SENSORS_BATT * 100)) )
+  {
+    /* read all sensors with additional power source */
+    readPowerSwitchedSensors();
+  }
+
+  /* Start Homie and Wifi */
+  Serial << "Reading Homie Config..." << endl;
+  Homie.setup();
+
   Serial << "DS18S20 count: " << sensorCount << " found in " << (millis() - tempInitStartTime) << " ms" << endl;
   Serial.flush();
   /* Measure temperature TODO idea: move this into setup */
@@ -874,6 +872,23 @@ void safeSetup()
     sensors.setResolution(DS18B20_RESOLUTION);
     sensors.requestTemperatures();
   }
+  else
+  {
+    Serial << "NO SENSOR FOUND! " << endl;
+    Serial << "  N   N  OOO         SSSS EEEEE N   N  SSSS  OOO  RRRR        FFFFF  OOO  U   U N   N DDDD   !" << endl;
+    Serial << "  NN  N O   O       S     E     NN  N S     O   O R   R       F     O   O U   U NN  N D   D  !" << endl;
+    Serial << "  N N N O   O        SSS  EEEE  N N N  SSS  O   O RRRR        FFFF  O   O U   U N N N D   D  !" << endl;
+    Serial << "  N  NN O   O           S E     N  NN     S O   O R  R        F     O   O U   U N  NN D   D  !" << endl;
+    Serial << "  N   N  OOO        SSSS  EEEEE N   N SSSS   OOO  R   R       F      OOO   UUU  N   N DDDD   !" << endl;
+                                                                              
+    Serial << "" << endl;
+    Serial << "" << endl;
+    Serial << FIRMWARE_NAME << " " FIRMWARE_VERSIONNMUMBER << endl;
+    Serial << "" << endl;
+    Serial << "Is expected to run on the following board:" << endl;
+    Serial << FIRMWARE_VERSION << endl;
+    Serial.flush();
+  }
 
   mConfigured = Homie.isConfigured();
   if (mConfigured)
@@ -947,7 +962,7 @@ void safeSetup()
     delay(100);
     WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 1);
     Serial.println("Initial Setup. Start Accesspoint...");
-    mDownloadMode = true;
+    vmDownloadMode = true;
   }
   stayAlive.advertise("alive").setName("Alive").setDatatype(NUMBER_TYPE).settable(aliveHandler);
   setupFinishedTimestamp = millis();
@@ -983,7 +998,7 @@ void selfTest()
 
   if (selfTestPumpRun >= 0 && selfTestPumpRun < MAX_PLANTS)
   {
-    Serial << "self test mode pump deactivate " << pumpToRun << endl;
+    Serial << "self test mode pump deactivate " << vmPumpToRun << endl;
     Serial.flush();
     mPlants[selfTestPumpRun].deactivatePump();
   }
@@ -1015,7 +1030,7 @@ void loop()
 {
   Homie.loop();
   /* Toggel Senor LED to visualize mode 3 */
-  if (mDownloadMode)
+  if (vmDownloadMode)
   {
     if (nextBlink < millis())
     {
@@ -1040,9 +1055,9 @@ void loop()
   else
   {
     unsigned long timeSinceSetup = millis() - setupFinishedTimestamp;
-    if ((timeSinceSetup > MQTT_TIMEOUT) && (!mSensorsRead))
+    if ((timeSinceSetup > MQTT_TIMEOUT) && (!vmSensorsRead))
     {
-      mSensorsRead = true;
+      vmSensorsRead = true;
       /* Disable Wifi and put modem into sleep mode */
       WiFi.mode(WIFI_OFF);
       Serial << "Wifi mode set to " << WIFI_OFF << " mqqt was no reached within " << timeSinceSetup << "ms , fallback to offline mode " << endl;
@@ -1052,14 +1067,14 @@ void loop()
   }
 
   /** Timeout always stopping the ESP -> no endless power consumption */
-  if (millis() > ESP_STALE_TIMEOUT && !mDownloadMode)
+  if (millis() > ESP_STALE_TIMEOUT && !vmDownloadMode)
   {
     Serial << (millis() / 1000) << "not terminated watchdog reset" << endl;
     Serial.flush();
     esp_restart();
   }
 
-  if (pumpToRun != -1)
+  if (vmPumpToRun != -1)
   {
     pumpActiveLoop();
   }
@@ -1082,9 +1097,8 @@ void plantcontrol()
 
   readOneWireSensors();
 
-  Serial << "W : " << waterRawSensor.getAverage() << " mm (" << String(waterLevelMax.get() - waterRawSensor.getAverage()) << " mm left)" << endl;
+  Serial << "W : " << waterRawSensor.getAverage() << " mm " << endl;
 
-  mBatteryVoltage = battery.getVoltage(BATTSENSOR_INDEX_BATTERY);
   float chipTemp = battery.getTemperature();
   Serial << "Chip Temperatur " << chipTemp << " °C " << endl;
 
@@ -1093,34 +1107,58 @@ void plantcontrol()
     /* Publish water values, if available */
     if (waterRawSensor.getCount() > 0)
     {
-      float remaining = (waterLevelMax.get() - waterRawSensor.getAverage());
-      float actualDifference = waterLevelMax.get() - waterLevelMin.get();
-      float ratio = remaining/actualDifference;
-      sensorWater.setProperty("useable").send(String(actualDifference));
-      if (!isnan(remaining))
-      {
-        /* measuring the distance from top -> smaller value means more water: */
-        sensorWater.setProperty("remaining").send(String(ratio*100));
-        
-      }
       if (!isnan(waterRawSensor.getAverage()))
       {
-        sensorWater.setProperty("distance").send(String(waterRawSensor.getAverage()));
+        /* measuring the distance from top -> smaller value means more water: */
+        long averageWater = waterRawSensor.getAverage();
+        if (averageWater < ESP_ADC_MAX) {
+          long percentage = (averageWater * averageWater);
+          percentage = percentage / 570000;
+          /* Add offset */
+          if (percentage > 0)
+          {
+            percentage += 4;
+          }
+          sensorWater.setProperty("remaining").send(String(percentage));
+        } else {
+          sensorWater.setProperty("remaining").send(String("100"));
+        }
+
+        sensorWater.setProperty("raw").send(String(waterRawSensor.getAverage()));
       }
     }
-    sensorLipo.setProperty("percent").send(String(100 * mBatteryVoltage / VOLT_MAX_BATT));
+    
-    sensorLipo.setProperty("volt").send(String(mBatteryVoltage));
+    if ( ((int) (mBatteryVoltage * 100)) < ((int) (VOLT_MIN_BATT * 100)) )
-    sensorLipo.setProperty("current").send(String(battery.getCurrent()));
+    {
-    sensorLipo.setProperty("Ah").send(String(battery.getAh()));
+      sensorLipo.setProperty("percent").send("0");
-    sensorLipo.setProperty("ICA").send(String(battery.getICA()));
-    sensorLipo.setProperty("DCA").send(String(battery.getDCA()));
-    sensorLipo.setProperty("CCA").send(String(battery.getCCA()));
-    if (mSolarVoltage < SOLAR_MAX_VOLTAGE_POSSIBLE) {
-      sensorSolar.setProperty("volt").send(String(mSolarVoltage));
-    } else {
-      log(LOG_LEVEL_INFO, String("Ignore unrealistc sun voltage" + String(mSolarVoltage) +"V"), LOG_SOLAR_CHARGER_MISSING);
     }
-    sensorTemp.setProperty(TEMPERATUR_SENSOR_CHIP).send(String(chipTemp));
+    else
+    {
+      sensorLipo.setProperty("percent").send(String(100 * (((mBatteryVoltage - VOLT_MIN_BATT) / (VOLT_MAX_BATT - VOLT_MIN_BATT)))));
+    }
+
+    if (battery.isFound()) {
+      sensorLipo.setProperty("volt").send(String(mBatteryVoltage));
+      sensorLipo.setProperty("current").send(String(battery.getCurrent()));
+      sensorLipo.setProperty("Ah").send(String(battery.getAh()));
+      sensorLipo.setProperty("ICA").send(String(battery.getICA()));
+      sensorLipo.setProperty("DCA").send(String(battery.getDCA()));
+      sensorLipo.setProperty("CCA").send(String(battery.getCCA()));
+      if (mSolarVoltage < SOLAR_MAX_VOLTAGE_POSSIBLE) {
+        sensorSolar.setProperty("volt").send(String(mSolarVoltage));
+      } else {
+        log(LOG_LEVEL_INFO, String("Ignore unrealistc sun voltage" + String(mSolarVoltage) +"V"), LOG_SOLAR_CHARGER_MISSING);
+      }
+      sensorTemp.setProperty(TEMPERATUR_SENSOR_CHIP).send(String(chipTemp));
+    } else {
+      log(LOG_LEVEL_ERROR, String("No battery or sun sensor found"), LOG_SOLAR_CHARGER_MISSING);
+    }
+
+    /* Publish 1-wire sensor status on failure */
+    if (sensors.getDS18Count() <= 1) {
+      log(LOG_LEVEL_ERROR, String("Found " + String(sensors.getDS18Count()) + " DS18B20 sensors"), LOG_SENSOR_MISSING_ERROR_CODE);
+    }
+
   }
   else
   {
@@ -1128,7 +1166,7 @@ void plantcontrol()
     Serial.flush();
   }
 
-bool isLowLight = (mSolarVoltage <= SOLAR_CHARGE_MAX_VOLTAGE);
+bool isLowLight = (mSolarVoltage <= SOLAR_CHARGE_MIN_VOLTAGE);
 #if defined(TIMED_LIGHT_PIN)
   
   bool shouldLight = determineTimedLightState(isLowLight);
@@ -1140,30 +1178,30 @@ bool isLowLight = (mSolarVoltage <= SOLAR_CHARGE_MAX_VOLTAGE);
 
 #endif // TIMED_LIGHT_PIN
 
-  bool isLiquid = waterTemp > 5;
+  bool isLiquid = (waterTemp > 5.0f);
   bool hasWater = true; // By default activate the pump
   if (waterRawSensor.getCount() > 0)
   {
     //surface of water is still nearer the sensor than required to cover the pumps
-    hasWater = waterRawSensor.getAverage() < waterLevelMin.get();
+    hasWater = waterRawSensor.getAverage() > WATER_LEVEL_MINIMUM;
-    if (waterRawSensor.getAverage() > waterLevelMax.get()) {
+  }
-      log(LOG_LEVEL_ERROR, LOG_PUMP_FULLTANK_MESSAGE, LOG_PUMP_FULLTANK_CODE);
+
-      hasWater = true;
+  if (mBatteryVoltage >= VOLT_SENSORS_BATT)
-    }
+  {
+    // FIXME no water warning message
+    vmPumpToRun = determineNextPump(isLowLight);
   }
 
-  // FIXME no water warning message
-  pumpToRun = determineNextPump(isLowLight);
   // early aborts
-  if (pumpToRun != -1)
+  if (vmPumpToRun != -1)
   {
     if(isLiquid){
       if (hasWater)
       {
-        if (mDownloadMode)
+        if (vmDownloadMode)
         {
           log(LOG_LEVEL_INFO, LOG_PUMP_AND_DOWNLOADMODE, LOG_PUMP_AND_DOWNLOADMODE_CODE);
-          pumpToRun = -1;
+          vmPumpToRun = -1;
         } else {
           /* Pump can be used :) */
         }
@@ -1171,18 +1209,18 @@ bool isLowLight = (mSolarVoltage <= SOLAR_CHARGE_MAX_VOLTAGE);
       else
       {
         log(LOG_LEVEL_ERROR, LOG_PUMP_BUTNOTANK_MESSAGE, LOG_PUMP_BUTNOTANK_CODE);
-        pumpToRun = -1;
+        vmPumpToRun = -1;
       }
     }
     else 
     {
         log(LOG_LEVEL_ERROR, LOG_VERY_COLD_WATER, LOG_VERY_COLD_WATER_CODE);
-        pumpToRun = -1;
+        vmPumpToRun = -1;
     }
   }
 
   // go directly to sleep, skipping the pump loop
-  if (pumpToRun == -1)
+  if (vmPumpToRun == -1)
   {
     espDeepSleep();
   }