diff --git a/esp32/PlantControl.code-workspace b/esp32/PlantControl.code-workspace
index 83e0c1b..0f76eb0 100644
--- a/esp32/PlantControl.code-workspace
+++ b/esp32/PlantControl.code-workspace
@@ -25,6 +25,7 @@
 			"fstream": "cpp",
 			"ostream": "cpp",
 			"sstream": "cpp"
+			"system_error": "cpp"
 		}
 	}
 }
diff --git a/esp32/include/ControllerConfiguration.h b/esp32/include/ControllerConfiguration.h
index 17077d6..3d0ac5e 100644
--- a/esp32/include/ControllerConfiguration.h
+++ b/esp32/include/ControllerConfiguration.h
@@ -1,6 +1,51 @@
+/**
+ * @file ControllerConfiguration.h
+ * @author your name (you@domain.com)
+ * @brief 
+ * @version 0.1
+ * @date 2020-05-30
+ * 
+ * @copyright Copyright (c) 2020
+ * 
+ * \mainpage Configuration of the controller
+ * @{
+ * Describe the used PINs of the controller
+ *  
+ * @subpage Controller
+ * 
+ * @subpage Homie
+ * 
+ * @subpage Configuration
+ * 
+ * There are several modes in the controller
+ * \dot
+ *  digraph Operationmode {
+ *      ranksep=.75;
+ *      poweroff [ label="off" ];
+ *      mode1 [ label="Mode 1 - Sensor only", shape=box, width=2 ];
+ *      mode2 [ label="Mode 2 - Wifi enabled", shape=box ];
+ *      mode3 [ label="Mode 3 - Stay alive", shape=box ];
+ *      mode1 -> mode2 [ label="wakeup reason", fontsize=10 ];
+ *      mode1 -> mode2 [ label="Time duration", fontsize=10 ];
+ *      mode2 -> mode3 [ label="Over the Air Update", fontsize=10 ];
+ *      mode3 -> mode2 [ label="Over the Air Finished", fontsize=10 ];
+ *      mode3 -> mode2 [ label="Mqtt Command", fontsize=10 ];
+ *      mode2 -> mode3 [ label="Mqtt Command", fontsize=10 ];
+ *      poweroff -> mode1 [ label="deep sleep wakeup", fontsize=10 ];
+ *      mode1 -> poweroff [ label="enter deep sleep", fontsize=10 ];
+ *      mode2 -> poweroff [ label="Mqtt queue empty", fontsize=10 ];
+ *  }
+ *  \enddot
+ * 
+ * Before entering Deep sleep the controller is configured with an wakeup time.
+ * 
+ * @}
+ */
 #ifndef CONTROLLER_CONFIG_H
 #define CONTROLLER_CONFIG_H
-
+/** \addtogroup GPIO Settings
+ *  @{
+ */
 #define SENSOR_PLANT0 GPIO_NUM_32 /**< GPIO 32 (ADC1) */
 #define SENSOR_PLANT1 GPIO_NUM_33 /**< GPIO 33 (ADC1) */
 #define SENSOR_PLANT2 GPIO_NUM_25 /**< GPIO 25 (ADC2) */
@@ -21,8 +66,8 @@
 #define OUTPUT_ENABLE_PUMP   GPIO_NUM_13 /**< GPIO 13 - Enable Pumps  */
 
 #define SENSOR_ONEWIRE      GPIO_NUM_4 /**< GPIO 12 - Temperatur sensor, Battery and other cool onewire stuff */
-#define SHARED_SCL          GPIO_NUM_16 /**< GPIO 16 - echo feedback of water sensor */ 
-#define SENSOR_TANK_SDA     GPIO_NUM_17 /**< GPIO 17 - trigger for water sensor */
+#define SENSOR_TANK_SDA    GPIO_NUM_16 /**< GPIO 16 - echo feedback of water sensor */ 
+#define SENSOR_TANK_SCL     GPIO_NUM_17 /**< GPIO 17 - trigger for water sensor */
 #define BUTTON              GPIO_NUM_0  /**< GPIO 0 - Fix button of NodeMCU */
 
 #define CUSTOM1_PIN1        GPIO_NUM_34   /** direct gpio */
@@ -32,20 +77,28 @@
 
 #define I2C1_SDA          GPIO_NUM_34   /**< GPIO 34 - I2C */
 #define I2C1_SCL          GPIO_NUM_35   /**< GPIO 35 - I2C */
+/* @} */
 
-#define FIRMWARE_VERSION "sw2.201 hw0.10b"
+/** \addtogroup Configuration
+ *  @{
+ */
+#define CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE
+#define CONFIG_COMPILER_CXX_EXCEPTIONS
+
+
+#define FIRMWARE_VERSION "2.4 HW0.10b"
 
 #define TIMED_LIGHT_PIN CUSTOM1_PIN5
 #define FLOWMETER_PIN CUSTOM1_PIN1
 #ifdef FLOWMETER_PIN
-    #define FLOWMETER_FLOWFACTOR 23 /** F = 22 * Q;Q = L/min */
+    #define FLOWMETER_PULSES_PER_ML 2.2
 #endif
 
-#define MOIST_SENSOR_MAX_FRQ               10000 // 10kHz (as never more then 3000 was measured)
-#define MOIST_SENSOR_MIN_FRQ                1000 // 1kHz (500Hz margin)
+#define MOIST_SENSOR_MAX_FRQ               60000 // 60kHz (500Hz margin)
+#define MOIST_SENSOR_MIN_FRQ                500 // 0.5kHz (500Hz margin)
 
-#define ANALOG_SENSOR_MAX_MV                4095 /**< Maximum according https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html */
-#define ANALOG_SENSOR_MIN_MV                100
+#define ANALOG_SENSOR_MAX_MV                1300 //successive approximation of good range
+#define ANALOG_SENSOR_MIN_MV                300  //successive approximation of good range
 
 #define SOLAR_VOLT_FACTOR           11
 #define BATTSENSOR_INDEX_SOLAR      0
@@ -65,11 +118,9 @@
 #define TEMPERATUR_TIMEOUT              3000    /**< 3 Seconds timeout for the temperatur sensors */
 #define DS18B20_RESOLUTION              9       /**< 9bit temperature resolution -> 0.5°C steps */
 
-#define PLANT_WITHOUT_TEMPSENSOR 100
-
 #define UTC_OFFSET_DE                   3600    /* UTC offset in seconds for Germany */
 #define UTF_OFFSET_DE_DST               3600    /* offset in seconds if daylight saving time is active */
 
 /* @} */
 
-#endif
\ No newline at end of file
+#endif
diff --git a/esp32/include/HomieConfiguration.h b/esp32/include/HomieConfiguration.h
index 23dc690..7bceab7 100644
--- a/esp32/include/HomieConfiguration.h
+++ b/esp32/include/HomieConfiguration.h
@@ -88,6 +88,7 @@ HomieSetting<const char *> ntpServer("ntpServer", "NTP server (pool.ntp.org as d
         HomieSetting<long> timedLightStart("LightStart", "hour to start light");
         HomieSetting<long> timedLightEnd("LightEnd", "hour to end light");
         HomieSetting<bool> timedLightOnlyWhenDark("LightOnlyDark", "only enable light, if solar is low");
+        HomieSetting<long> timedLightPowerLevel("LightPowerLevel", "0-255 power level");
 #endif // TIMED_LIGHT_PIN
 
 
@@ -106,11 +107,11 @@ HomieSetting<const char *> ntpServer("ntpServer", "NTP server (pool.ntp.org as d
         HomieSetting<long> mPumpAllowedHourRangeStart##plant = HomieSetting<long>("hourstart" strplant, "Plant" strplant " - Range pump allowed hour start (0-23)");                                      \
         HomieSetting<long> mPumpAllowedHourRangeEnd##plant = HomieSetting<long>("hourend" strplant, "Plant" strplant " - Range pump allowed hour end (0-23)");                                            \
         HomieSetting<bool> mPumpOnlyWhenLowLight##plant = HomieSetting<bool>("lowLight" strplant, "Plant" strplant " - Enable the Pump only, when there is no sunlight"); \
-        HomieSetting<long> mPumpCooldownInMinutes##plant = HomieSetting<long>("delay" strplant, "Plant" strplant " - How long to wait until the pump is activated again (minutes)");                      \
+        HomieSetting<long> mPumpCooldownInSeconds##plant = HomieSetting<long>("delay" strplant, "Plant" strplant " - How long to wait until the pump is activated again (minutes)");                      \
         HomieSetting<long> pPumpDuration##plant = HomieSetting<long>("pumpDuration" strplant, "Plant" strplant " - time seconds to water when pump is active");                      \
         HomieSetting<long> pPumpMl##plant = HomieSetting<long>("pumpAmount" strplant, "Plant" strplant " - ml (if using flowmeter) to water when pump is active");                      \
         HomieSetting<long> pPowerLevel##plant = HomieSetting<long>("powerLevel" strplant, "Plant" strplant " - pwm duty cycle in percent");                      \
-        PlantSettings_t mSetting##plant = {&mSensorDry##plant, &mPumpAllowedHourRangeStart##plant, &mPumpAllowedHourRangeEnd##plant, &mPumpOnlyWhenLowLight##plant, &mPumpCooldownInMinutes##plant, &pPumpDuration##plant, &pPowerLevel##plant, &pPumpMl##plant}; \
+        PlantSettings_t mSetting##plant = {&mSensorDry##plant, &mPumpAllowedHourRangeStart##plant, &mPumpAllowedHourRangeEnd##plant, &mPumpOnlyWhenLowLight##plant, &mPumpCooldownInSeconds##plant, &pPumpDuration##plant, &pPowerLevel##plant, &pPumpMl##plant}; \
         /**< Generate all settings for one plant \
          * \
          * Feature to start pumping only at morning: @link{SOLAR_CHARGE_MIN_VOLTAGE} and @link{SOLAR_CHARGE_MAX_VOLTAGE} \
diff --git a/esp32/include/HomieTypes.h b/esp32/include/HomieTypes.h
index 3105f2d..d39cd3b 100644
--- a/esp32/include/HomieTypes.h
+++ b/esp32/include/HomieTypes.h
@@ -22,8 +22,7 @@
 #define FOREACH_SENSOR(SENSOR) \
         SENSOR(NONE)   \
         SENSOR(CAPACITIVE_FREQUENCY)  \
-        SENSOR(ANALOG_RESISTANCE_PROBE)   \
-        SENSOR(SHT20)
+        SENSOR(ANALOG_RESISTANCE_PROBE)   
 
 /**
  * @}
@@ -46,6 +45,8 @@ static const char *SENSOR_STRING[] = {
 #define MISSING_SENSOR -2
 //plant uses only cooldown and duration, moisture is measured but ignored, allowedHours is ignored (eg. make a 30min on 30min off cycle)
 #define HYDROPONIC_MODE -3
+//plant uses cooldown and duration and workhours, moisture is measured but ignored
+#define TIMER_ONLY -4
 
 typedef struct PlantSettings_t
 {
diff --git a/esp32/include/LogDefines.h b/esp32/include/LogDefines.h
index 4e6a9ba..dc6ff3c 100644
--- a/esp32/include/LogDefines.h
+++ b/esp32/include/LogDefines.h
@@ -36,4 +36,5 @@
 #define LOG_SLEEP_NIGHT 100
 #define LOG_SLEEP_DAY 101
 #define LOG_SLEEP_CYCLE 102
-#define LOG_MISSING_PUMP -4
\ No newline at end of file
+#define LOG_MISSING_PUMP -4
+#define LOG_BOOT_ERROR_DETECTION 10000
\ No newline at end of file
diff --git a/esp32/include/PlantCtrl.h b/esp32/include/PlantCtrl.h
index f052a47..332b1a7 100644
--- a/esp32/include/PlantCtrl.h
+++ b/esp32/include/PlantCtrl.h
@@ -75,6 +75,12 @@ public:
         return SENSOR_STRING[mode];
     }
 
+    bool isTimerOnly()
+    {
+        long current = this->mSetting->pSensorDry->get();
+        return equalish(current, TIMER_ONLY);
+    }
+
     bool isHydroponic()
     {
         long current = this->mSetting->pSensorDry->get();
@@ -94,7 +100,7 @@ public:
      */
     bool isPumpRequired()
     {
-        if (isHydroponic())
+        if (isHydroponic() || isTimerOnly())
         {
             // hydroponic only uses timer based controll
             return true;
@@ -122,13 +128,6 @@ public:
         }
     }
 
-    float getCurrentTemperature(){
-        if(mTemperature_degree.getCount() == 0){
-            return PLANT_WITHOUT_TEMPSENSOR; 
-        }
-        return mTemperature_degree.getMedian();
-    }
-
     float getCurrentMoisturePCT()
     {
         switch (getSensorMode())
@@ -138,9 +137,7 @@ public:
         case CAPACITIVE_FREQUENCY:
             return mapf(mMoisture_raw.getMedian(), MOIST_SENSOR_MAX_FRQ, MOIST_SENSOR_MIN_FRQ, 0, 100);
         case ANALOG_RESISTANCE_PROBE:
-            return mapf(mMoisture_raw.getMedian(), ANALOG_SENSOR_MIN_MV, ANALOG_SENSOR_MAX_MV, 0, 100);
-        case SHT20:
-            return mMoisture_raw.getMedian();
+            return mapf(mMoisture_raw.getMedian(), ANALOG_SENSOR_MAX_MV, ANALOG_SENSOR_MIN_MV, 0, 100);
         }
         return MISSING_SENSOR;
     }
@@ -210,6 +207,12 @@ public:
     {
         return this->mSetting->pPumpDuration->get();
     }
+    long getPumpMl()
+    {
+        return this->mSetting->pPumpMl->get();
+    }
+
+    
 };
 
 #endif
diff --git a/esp32/include/ulp-pwm.h b/esp32/include/ulp-pwm.h
new file mode 100644
index 0000000..778d202
--- /dev/null
+++ b/esp32/include/ulp-pwm.h
@@ -0,0 +1,188 @@
+#ifndef ULP_PWM_h
+#define ILP_PWM_h
+
+#include <Arduino.h>
+#include "driver/rtc_io.h"
+#include "soc/rtc_cntl_reg.h"
+#include "soc/rtc.h"
+#include "esp32/ulp.h"
+#include "ControllerConfiguration.h"
+
+#define LBL_START 1
+#define LBL_DELAY_ON 2
+#define LBL_DELAY_OFF 3
+#define LBL_SKIP_ON 4
+#define LBL_SKIP_OFF 5
+#define REGISTER_DELAY_LOOP_COUNTER R0
+#define REGISTER_TICKS_ON R1
+#define REGISTER_TICKS_OFF R2
+#define TOTAL_TICKS_DELAY 255
+#define PIN TIMED_LIGHT_PIN
+
+//support 20 vars
+const size_t ulp_var_offset = CONFIG_ULP_COPROC_RESERVE_MEM - 20;
+//use the first for dimming
+const size_t ulp_dimm_offset = ulp_var_offset + 1;
+const size_t ulp_alive_offset = ulp_var_offset + 2;
+
+//see https://github.com/perseus086/ESP32-notes
+const uint32_t rtc_bit[40] = {
+    25, //gpio0
+    0,  //gpio1
+    26, //gpio2
+    0,  //gpio3
+    24, //gpio4
+    0,  //gpio5
+    0,  //gpio6
+    0,  //gpio7
+    0,  //gpio8
+    0,  //gpio9
+    0,  //gpio10
+    0,  //gpio11
+    29, //gpio12
+    28, //gpio13
+    30, //gpio14
+    27, //gpio15
+    0,  //gpio16
+    31, //gpio17
+    0,  //gpio18
+    0,  //gpio19
+    0,  //gpio20
+    0,  //gpio21
+    0,  //gpio22
+    0,  //gpio23
+    0,  //gpio24
+    20, //gpio25
+    21, //gpio26
+    0,  //gpio27
+    0,  //gpio28
+    0,  //gpio29
+    0,  //gpio30
+    0,  //gpio31
+    23, //gpio32
+    22, //gpio33
+    18, //gpio34
+    19, //gpio35
+    14, //gpio36
+    15, //gpio37
+    16, //gpio38
+    17  //gpio39
+};
+
+static inline void ulp_internal_data_write(size_t offset, uint16_t value)
+{
+    if (offset >= CONFIG_ULP_COPROC_RESERVE_MEM || offset <= ulp_var_offset)
+    {
+        Serial.print("Invalid ULP offset detected, refusing write!");
+        Serial.print(offset);
+        Serial.print("-");
+        Serial.print(ulp_var_offset);
+        Serial.print("-");
+        Serial.println(CONFIG_ULP_COPROC_RESERVE_MEM);
+        return;
+    }
+    else
+    {
+        RTC_SLOW_MEM[offset] = value;
+    }
+}
+
+static inline uint16_t ulp_internal_data_read(size_t offset)
+{
+    if (offset >= CONFIG_ULP_COPROC_RESERVE_MEM || offset <= ulp_var_offset)
+    {
+        Serial.print("Invalid ULP offset detected");
+        Serial.print(offset);
+        Serial.print("-");
+        Serial.print(ulp_var_offset);
+        Serial.print("-");
+        Serial.println(CONFIG_ULP_COPROC_RESERVE_MEM);
+    }
+    return RTC_SLOW_MEM[offset] & 0xffff;
+}
+
+static inline uint32_t rtc_io_number_get(gpio_num_t gpio_num)
+{
+    assert(rtc_gpio_is_valid_gpio(gpio_num) && "Invalid GPIO for RTC");
+    uint32_t bit = rtc_bit[gpio_num];
+    Serial.print("Resolved GPIO ");
+    Serial.print(gpio_num);
+    Serial.print(" to rtc bit ");
+    Serial.println(bit);
+    return bit;
+}
+
+void ulp_internal_start(void)
+{
+    rtc_gpio_init(PIN);
+    rtc_gpio_set_direction(PIN, RTC_GPIO_MODE_OUTPUT_ONLY);
+    rtc_gpio_set_level(PIN, 0);
+    const uint32_t rtc_gpio = rtc_io_number_get(PIN);
+
+    // Define ULP program
+    const ulp_insn_t ulp_prog[] = {
+        M_LABEL(LBL_START),
+
+        I_MOVI(REGISTER_DELAY_LOOP_COUNTER, 1),
+        I_MOVI(REGISTER_TICKS_ON, 0),
+        I_ST(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_ON, ulp_alive_offset), //store 1 with 0 offset into alive
+
+        I_LD(REGISTER_TICKS_ON, REGISTER_TICKS_ON, ulp_dimm_offset), //REGISTER_TICKS_ON = RTC_DATA[0+ulp_dimm_offset]
+        //in total there is always 255 delay loop iterations, but in different duty cycle
+        I_MOVI(REGISTER_TICKS_OFF, TOTAL_TICKS_DELAY),
+        I_SUBR(REGISTER_TICKS_OFF, REGISTER_TICKS_OFF, REGISTER_TICKS_ON),
+
+        //on phase
+        I_MOVR(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_ON),
+        M_BL(LBL_SKIP_ON, 1),                                 //if never on, skip on phase
+        I_WR_REG(RTC_GPIO_OUT_REG, rtc_gpio, rtc_gpio, HIGH), // on
+        M_LABEL(LBL_DELAY_ON),
+        I_DELAY(1),                                                          //wait 1 clock
+        I_SUBI(REGISTER_DELAY_LOOP_COUNTER, REGISTER_DELAY_LOOP_COUNTER, 1), // REGISTER_DELAY_LOOP_COUNTER--
+        M_BGE(LBL_DELAY_ON, 1),                                              //if time left, goto start of on loop
+        M_LABEL(LBL_SKIP_ON),
+
+        //off phase
+        I_MOVR(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_OFF),
+
+        M_BL(LBL_SKIP_OFF, 1),                               //if never off, skip on phase
+        I_WR_REG(RTC_GPIO_OUT_REG, rtc_gpio, rtc_gpio, LOW), // on
+        M_LABEL(3),
+        I_DELAY(1),                                                          //wait 1 clock
+        I_SUBI(REGISTER_DELAY_LOOP_COUNTER, REGISTER_DELAY_LOOP_COUNTER, 1), // REGISTER_DELAY_LOOP_COUNTER--
+        M_BGE(3, 1),                                                         //if time left, goto start of on loop
+        M_LABEL(LBL_SKIP_OFF),
+
+        M_BX(LBL_START),
+    };
+    // Run ULP program
+    size_t size = sizeof(ulp_prog) / sizeof(ulp_insn_t);
+    assert(size < ulp_var_offset && "ULP_DATA_OFFSET needs to be greater or equal to the program size");
+    esp_err_t error = ulp_process_macros_and_load(0, ulp_prog, &size);
+    Serial.print("ULP bootstrap status ");
+    Serial.println(error);
+
+    //allow glitchless start
+    ulp_internal_data_write(ulp_alive_offset, 0);
+
+    error = ulp_run(0);
+    Serial.print("ULP start status ");
+    Serial.println(error);
+}
+
+static inline void ulp_pwm_set_level(uint8_t level)
+{
+    ulp_internal_data_write(ulp_dimm_offset, level);
+}
+
+static inline void ulp_pwm_init()
+{
+    ulp_internal_data_write(ulp_alive_offset, 0);
+    delay(10);
+    if (ulp_internal_data_read(ulp_alive_offset) == 0)
+    {
+        ulp_internal_start();
+    }
+}
+
+#endif
\ No newline at end of file
diff --git a/esp32/platformio.ini b/esp32/platformio.ini
index 39ddff5..eaa7c40 100644
--- a/esp32/platformio.ini
+++ b/esp32/platformio.ini
@@ -13,13 +13,13 @@ platform = espressif32
 board = esp32doit-devkit-v1
 framework = arduino
 build_flags = -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
-    -DPLANT0_SENSORTYPE=SHT20
+    -DPLANT0_SENSORTYPE=ANALOG_RESISTANCE_PROBE
     -DPLANT1_SENSORTYPE=ANALOG_RESISTANCE_PROBE
-    -DPLANT2_SENSORTYPE=CAPACITIVE_FREQUENCY
-    -DPLANT3_SENSORTYPE=CAPACITIVE_FREQUENCY
-    -DPLANT4_SENSORTYPE=CAPACITIVE_FREQUENCY
-    -DPLANT5_SENSORTYPE=CAPACITIVE_FREQUENCY
-    -DPLANT6_SENSORTYPE=CAPACITIVE_FREQUENCY
+    -DPLANT2_SENSORTYPE=ANALOG_RESISTANCE_PROBE
+    -DPLANT3_SENSORTYPE=ANALOG_RESISTANCE_PROBE
+    -DPLANT4_SENSORTYPE=ANALOG_RESISTANCE_PROBE
+    -DPLANT5_SENSORTYPE=ANALOG_RESISTANCE_PROBE
+    -DPLANT6_SENSORTYPE=ANALOG_RESISTANCE_PROBE
 board_build.partitions = defaultWithSmallerSpiffs.csv
 
 
@@ -33,4 +33,4 @@ lib_deps = ArduinoJson@6.16.1
 
 [platformio]
 
-extra_configs = custom_platformio.ini
\ No newline at end of file
+extra_configs = custom_platformio.ini
diff --git a/esp32/src/PlantCtrl.cpp b/esp32/src/PlantCtrl.cpp
index a7d0e93..246d880 100644
--- a/esp32/src/PlantCtrl.cpp
+++ b/esp32/src/PlantCtrl.cpp
@@ -31,7 +31,7 @@ void Plant::init(void)
     /* Initialize Home Settings validator */
     this->mSetting->pSensorDry->setDefaultValue(DEACTIVATED_PLANT);
     this->mSetting->pSensorDry->setValidator([](long candidate)
-                                             { return (((candidate >= 0.0) && (candidate <= 100.0)) || equalish(candidate, DEACTIVATED_PLANT) || equalish(candidate, HYDROPONIC_MODE)); });
+                                             { return (((candidate >= 0.0) && (candidate <= 100.0)) || equalish(candidate, DEACTIVATED_PLANT) || equalish(candidate, HYDROPONIC_MODE) || equalish(candidate, TIMER_ONLY)); });
 
     this->mSetting->pPumpAllowedHourRangeStart->setDefaultValue(8); // start at 8:00
     this->mSetting->pPumpAllowedHourRangeStart->setValidator([](long candidate)
@@ -39,7 +39,7 @@ void Plant::init(void)
     this->mSetting->pPumpAllowedHourRangeEnd->setDefaultValue(20); // stop pumps at 20:00
     this->mSetting->pPumpAllowedHourRangeEnd->setValidator([](long candidate)
                                                            { return ((candidate >= 0) && (candidate <= 23)); });
-    this->mSetting->pPumpOnlyWhenLowLight->setDefaultValue(true);
+    this->mSetting->pPumpOnlyWhenLowLight->setDefaultValue(false);
     this->mSetting->pPumpCooldownInSeconds->setDefaultValue(60 * 60); // 1 hour
     this->mSetting->pPumpCooldownInSeconds->setValidator([](long candidate)
                                                          { return (candidate >= 0); });
@@ -47,7 +47,7 @@ void Plant::init(void)
     this->mSetting->pPumpDuration->setDefaultValue(30);
     this->mSetting->pPumpDuration->setValidator([](long candidate)
                                                 { return ((candidate >= 0) && (candidate <= 1000)); });
-    this->mSetting->pPumpMl->setDefaultValue(0);
+    this->mSetting->pPumpMl->setDefaultValue(1000);
     this->mSetting->pPumpMl->setValidator([](long candidate)
                                           { return ((candidate >= 0) && (candidate <= 5000)); });
     this->mSetting->pPumpPowerLevel->setDefaultValue(100);
@@ -91,7 +91,6 @@ void Plant::initSensors(void)
         adcAttachPin(this->mPinSensor);
         break;
     }
-    case SHT20:
     case NONE:
     {
         // do nothing
@@ -113,34 +112,6 @@ void Plant::blockingMoistureMeasurement(void)
         }
         break;
     }
-    case SHT20:
-    {
-        
-        //do not assume valid i2c state, reinit
-        TwoWire sensorWire = TwoWire(0);
-        sensorWire.setPins(SENSOR_TANK_SDA, SHARED_SCL);
-        sht20.begin(&sensorWire);
-        sht20.reset();
-        delay(100);
-        if(!sht20.isConnected()){
-            Serial.println("SHT20 connection error");
-        }
-        bool success = sht20.read();
-        int error = sht20.getError();
-        if (error)
-        {
-            log(LOG_LEVEL_ERROR, "Failure reading SHT20 " + String(error), LOG_SENSOR_MISSING);
-        }
-        if (!success || error)
-        {
-            this->mMoisture_raw.clear();
-            this->mMoisture_raw.add(MISSING_SENSOR);
-            return;
-        }
-        mMoisture_raw.add(sht20.getHumidity());
-        mTemperature_degree.add(sht20.getTemperature());
-        break;
-    }
     case CAPACITIVE_FREQUENCY:
     case NONE:
     {
@@ -160,7 +131,6 @@ void Plant::startMoistureMeasurement(void)
         pcnt_counter_resume(unit);
         break;
     }
-    case SHT20:
     case ANALOG_RESISTANCE_PROBE:
     case NONE:
     {
@@ -192,7 +162,6 @@ void Plant::stopMoistureMeasurement(void)
         }
         break;
     }
-    case SHT20:
     case ANALOG_RESISTANCE_PROBE:
     case NONE:
     {
diff --git a/esp32/src/main.cpp b/esp32/src/main.cpp
index 80df651..369cbc5 100644
--- a/esp32/src/main.cpp
+++ b/esp32/src/main.cpp
@@ -1,18 +1,18 @@
 /** \addtogroup Controller
  *  @{
- * 
+ *
  * @file main.cpp
  * @author Ollo
  * @brief PlantControl
  * @version 0.1
  * @date 2020-05-01
- * 
+ *
  * @copyright Copyright (c) 2020
  */
 
 /******************************************************************************
  *                                     INCLUDES
-******************************************************************************/
+ ******************************************************************************/
 #include "LogDefines.h"
 #include "FileUtils.h"
 #include "TimeUtils.h"
@@ -35,28 +35,32 @@
 #include <VL53L0X.h>
 #include "driver/pcnt.h"
 #include "MQTTUtils.h"
+#include "esp_ota_ops.h"
+#if defined(TIMED_LIGHT_PIN)
+#include "ulp-pwm.h"
+#endif
 
 /******************************************************************************
  *                                     DEFINES
-******************************************************************************/
+ ******************************************************************************/
 #define AMOUNT_SENOR_QUERYS 8
 #define MAX_TANK_DEPTH 2000
+#define REBOOT_LOOP_DETECTION_ERROR 5
 
 /******************************************************************************
  *                            FUNCTION PROTOTYPES
-******************************************************************************/
+ ******************************************************************************/
 
 int determineNextPump(bool lowLight);
 void plantcontrol();
 void readPowerSwitchedSensors();
 bool determineTimedLightState(bool lowLight);
+bool otaRunning = false;
 
 /******************************************************************************
  *                       NON VOLATILE VARIABLES in DEEP SLEEP
-******************************************************************************/
-
+ ******************************************************************************/
 #if defined(TIMED_LIGHT_PIN)
-RTC_DATA_ATTR bool timedLightOn = false;                  /**< allow fast recovery after poweron */
 RTC_DATA_ATTR bool timedLightLowVoltageTriggered = false; /**remember if it was shut down due to voltage level */
 #endif                                                    // TIMED_LIGHT_PIN
 
@@ -65,7 +69,7 @@ RTC_DATA_ATTR long consecutiveWateringPlant[MAX_PLANTS] = {0};
 
 /******************************************************************************
  *                            LOCAL VARIABLES
-******************************************************************************/
+ ******************************************************************************/
 bool volatile mDownloadMode = false; /**< Controller must not sleep */
 bool volatile mSensorsRead = false;  /**< Sensors are read without Wifi or MQTT */
 int volatile pumpToRun = -1;         /** pump to run  at the end of the cycle */
@@ -80,6 +84,7 @@ unsigned long setupFinishedTimestamp;
 
 bool pumpStarted = false;
 long pumpTarget = -1;
+long pumpStartTime = 0;
 long lastSendPumpUpdate = 0;
 #ifdef FLOWMETER_PIN
 long pumpTargetMl = -1;
@@ -125,13 +130,30 @@ Plant mPlants[MAX_PLANTS] = {
 
 /******************************************************************************
  *                            LOCAL FUNCTIONS
-******************************************************************************/
+ ******************************************************************************/
+
+void finsihedCycleSucessfully()
+{
+  const esp_partition_t *running = esp_ota_get_running_partition();
+  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);
+    if (ota_state == ESP_OTA_IMG_PENDING_VERIFY)
+    {
+      log(LOG_LEVEL_INFO, "Diagnostics completed successfully! Marking as valid", LOG_BOOT_ERROR_DETECTION);
+      esp_ota_mark_app_valid_cancel_rollback();
+    }
+  }
+}
 
 void espDeepSleep(bool afterPump = false)
 {
   if (mDownloadMode)
   {
     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())
@@ -154,17 +176,7 @@ void espDeepSleep(bool afterPump = false)
     }
   }
 
-  //allo hold for all digital pins
-  gpio_deep_sleep_hold_en();
-
-  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
-  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_SLOW_MEM, ESP_PD_OPTION_ON);
-  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_FAST_MEM, ESP_PD_OPTION_ON);
-  esp_sleep_pd_config(ESP_PD_DOMAIN_XTAL, ESP_PD_OPTION_ON);
-
-#if defined(TIMED_LIGHT_PIN)
-  gpio_hold_en(TIMED_LIGHT_PIN);
-#endif // TIMED_LIGHT_PIN
+  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
 
   long secondsToSleep = -1;
 
@@ -187,6 +199,7 @@ void espDeepSleep(bool afterPump = false)
     }
   }
 
+  finsihedCycleSucessfully();
   esp_sleep_enable_timer_wakeup((secondsToSleep * 1000U * 1000U));
   if (aliveWasRead())
   {
@@ -199,7 +212,7 @@ void espDeepSleep(bool afterPump = false)
   }
 }
 
-//requires homie being started
+// requires homie being started
 void readOneWireSensors()
 {
   for (uint8_t i = 0; i < sensors.getDeviceCount(); i++)
@@ -227,7 +240,7 @@ void readOneWireSensors()
 
     if (!valid)
     {
-      //wrong family or crc errors on each retry
+      // wrong family or crc errors on each retry
       continue;
     }
 
@@ -302,30 +315,22 @@ void readPowerSwitchedSensors()
     Plant plant = mPlants[i];
     switch (plant.getSensorMode())
     {
-      case CAPACITIVE_FREQUENCY: {
-        Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " hz " << mPlants[i].getCurrentMoisturePCT() << "%" <<  endl;
-        break;
-      }
-      case ANALOG_RESISTANCE_PROBE : {
-        Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " mV " << mPlants[i].getCurrentMoisturePCT() << "%" <<  endl;
-        break;
-      }
-      case SHT20:{
-        Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentTemperature() << "°C " << mPlants[i].getCurrentMoisturePCT() << "rH%" <<  endl;
-        break;
-      }
-
-      case NONE : {
-
-      }
+    case CAPACITIVE_FREQUENCY:
+    {
+      Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " hz " << mPlants[i].getCurrentMoisturePCT() << "%" << endl;
+      break;
+    }
+    case ANALOG_RESISTANCE_PROBE:
+    {
+      Serial << "Plant " << i << " measurement: " << mPlants[i].getCurrentMoistureRaw() << " mV " << mPlants[i].getCurrentMoisturePCT() << "%" << endl;
+      break;
+    }
+    case NONE:
+    {
+    }
     }
   }
 
-  //do not assume valid i2c state, force release of hardware
-  Wire = TwoWire(0);
-  Wire.setPins(SENSOR_TANK_SDA, SHARED_SCL);
-  Wire.begin();
-
   waterRawSensor.clear();
   tankSensor.setTimeout(500);
   long start = millis();
@@ -398,10 +403,7 @@ void onHomieEvent(const HomieEvent &event)
     {
       mPlants[i].deactivatePump();
     }
-    WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
-    digitalWrite(OUTPUT_ENABLE_PUMP, HIGH);
-    delay(100);
-    WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 1);
+    otaRunning = true;
     mDownloadMode = true;
     break;
   case HomieEventType::OTA_SUCCESSFUL:
@@ -458,7 +460,7 @@ int determineNextPump(bool isLowLight)
       log(LOG_LEVEL_DEBUG, String(String(i) + " No pump required: due to light"), LOG_DEBUG_CODE);
       continue;
     }
-    if (!plant.isHydroponic())
+    if (! (plant.isHydroponic() || plant.isTimerOnly()))
     {
       if (equalish(plant.getCurrentMoistureRaw(), MISSING_SENSOR))
       {
@@ -485,10 +487,17 @@ int determineNextPump(bool isLowLight)
         }
         else
         {
-          plant.publishState("active");
+          if (mDownloadMode)
+          {
+            plant.publishState("active+supressed");
+          }
+          else
+          {
+            plant.publishState("active");
+          }
         }
 
-        if (!plant.isHydroponic())
+        if (! (plant.isHydroponic() || plant.isTimerOnly()))
         {
           consecutiveWateringPlant[i]++;
         }
@@ -514,7 +523,7 @@ int determineNextPump(bool isLowLight)
     else
     {
       plant.publishState("wet");
-      //plant was detected as wet, remove consecutive count
+      // plant was detected as wet, remove consecutive count
       consecutiveWateringPlant[i] = 0;
     }
   }
@@ -523,7 +532,7 @@ int determineNextPump(bool isLowLight)
 
 /**
  * @brief Handle Mqtt commands to keep controller alive
- * 
+ *
  * @param range multiple transmitted values (not used for this function)
  * @param value single value
  * @return true when the command was parsed and executed succuessfully
@@ -600,12 +609,12 @@ bool switch7(const HomieRange &range, const String &value)
 
 void initPumpLogic()
 {
-  //set targets
+  // set targets
 
 #ifdef FLOWMETER_PIN
-  pumpTargetMl = mPlants[pumpToRun].getPumpDuration();
+  pumpTargetMl = mPlants[pumpToRun].getPumpMl();
 
-  //0-6 are used for moisture measurment
+  // 0-6 are used for moisture measurment
   pcnt_unit_t unit = (pcnt_unit_t)(PCNT_UNIT_7);
   pcnt_config_t pcnt_config = {};                // Instancia PCNT config
   pcnt_config.pulse_gpio_num = FLOWMETER_PIN;    // Configura GPIO para entrada dos pulsos
@@ -613,8 +622,8 @@ void initPumpLogic()
   pcnt_config.unit = unit;                       // Unidade de contagem PCNT - 0
   pcnt_config.channel = PCNT_CHANNEL_0;          // Canal de contagem PCNT - 0
   pcnt_config.counter_h_lim = INT16_MAX;         // Limite maximo de contagem - 20000
-  pcnt_config.pos_mode = PCNT_COUNT_DIS;         // Incrementa contagem na subida do pulso
-  pcnt_config.neg_mode = PCNT_COUNT_INC;         // Incrementa contagem na descida do pulso
+  pcnt_config.pos_mode = PCNT_COUNT_INC;         // Incrementa contagem na subida do pulso
+  pcnt_config.neg_mode = PCNT_COUNT_DIS;         // Incrementa contagem na descida do pulso
   pcnt_config.lctrl_mode = PCNT_MODE_KEEP;       // PCNT - modo lctrl desabilitado
   pcnt_config.hctrl_mode = PCNT_MODE_KEEP;       // PCNT - modo hctrl - se HIGH conta incrementando
   pcnt_unit_config(&pcnt_config);                // Configura o contador PCNT
@@ -622,10 +631,15 @@ void initPumpLogic()
   pcnt_counter_clear(unit); // Zera o contador PCNT
   pcnt_counter_resume(unit);
 #endif
+  pumpStartTime = millis();
   pumpTarget = millis() + (mPlants[pumpToRun].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);
+#endif
 
-  //enable power
+  // enable power
   WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
   digitalWrite(OUTPUT_ENABLE_PUMP, HIGH);
   delay(100);
@@ -652,8 +666,8 @@ void pumpActiveLoop()
     mqttUpdateTick = true;
   }
 
+  long duration = millis() - pumpStartTime;
 #ifdef FLOWMETER_PIN
-
   int16_t pulses;
   pcnt_unit_t unit = (pcnt_unit_t)(PCNT_UNIT_7);
   esp_err_t result = pcnt_get_counter_value(unit, &pulses);
@@ -661,29 +675,27 @@ void pumpActiveLoop()
   {
     log(LOG_LEVEL_ERROR, LOG_HARDWARECOUNTER_ERROR_MESSAGE, LOG_HARDWARECOUNTER_ERROR_CODE);
     targetReached = true;
+    log(LOG_LEVEL_INFO, "Reached pump target ml " + String(pumpToRun), LOG_PUMP_STARTED_CODE);
   }
   else
   {
-    /**FLOWMETER_FLOWFACTOR * (L/Min) = F; 
-    given 1L/min -> FLOWMETER_FLOWFACTOR*60 pulses per liter 
-    -> 1000/result -> ml pro pulse;  
-    -> result * pulses ->*/
-    long pumped = (FLOWMETER_FLOWFACTOR * 60) * pulses / 1000;
-    if (pumped >= pumpTargetMl)
+    float mLPumped = pulses / FLOWMETER_PULSES_PER_ML; // mLperMs*duration;
+    if (mLPumped >= pumpTargetMl)
     {
       targetReached = true;
       pcnt_counter_pause(unit);
-      mPlants[pumpToRun].setProperty("waterusage").send(String(pumped));
+      mPlants[pumpToRun].setProperty("pulses").send(String(pulses));
+      mPlants[pumpToRun].setProperty("waterusage").send(String(mLPumped));
     }
+
     else if (mqttUpdateTick)
     {
-      mPlants[pumpToRun].setProperty("waterusage").send(String(pumped));
+      mPlants[pumpToRun].setProperty("pulses").send(String(pulses));
+      mPlants[pumpToRun].setProperty("waterusage").send(String(mLPumped));
     }
   }
 #endif
 
-  long pumpStarted = pumpTarget - (mPlants[pumpToRun].getPumpDuration() * 1000);
-  long duration = millis() - pumpStarted;
   if (millis() > pumpTarget)
   {
     mPlants[pumpToRun].setProperty("watertime").send(String(duration));
@@ -696,15 +708,13 @@ void pumpActiveLoop()
 
   if (targetReached)
   {
-    //disable all
+
+    // disable all
     digitalWrite(OUTPUT_ENABLE_PUMP, LOW);
-    for (int i = 0; i < MAX_PLANTS; i++)
-    {
-      mPlants[i].deactivatePump();
-    }
-    //disable loop, to prevent multi processing
+    mPlants[pumpToRun].deactivatePump();
+    // disable loop, to prevent multi processing
     pumpStarted = false;
-    //if runtime is larger than cooldown, else it would run continously
+    // if runtime is larger than cooldown, else it would run continously
     rtcLastWateringPlant[pumpToRun] = getCurrentTime();
     espDeepSleep(true);
   }
@@ -721,11 +731,9 @@ void safeSetup()
   WiFi.mode(WIFI_OFF);
   Serial.flush();
 
-//restore state before releasing pin, to prevent flickering
+// restore state before releasing pin, to prevent flickering
 #if defined(TIMED_LIGHT_PIN)
-  pinMode(TIMED_LIGHT_PIN, OUTPUT);
-  digitalWrite(TIMED_LIGHT_PIN, timedLightOn);
-  gpio_hold_dis(TIMED_LIGHT_PIN);
+  ulp_pwm_init();
 #endif // TIMED_LIGHT_PIN
 
   /* Intialize Plant */
@@ -743,26 +751,28 @@ void safeSetup()
 
   pinMode(OUTPUT_ENABLE_SENSOR, OUTPUT);
 
+  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)
   {
-    //increase the config settings
+    // increase the config settings
     Serial << "Limits.hpp is not adjusted, please search for this string and increase" << endl;
     return;
   }
+  static_assert(HomieInternals::MAX_JSON_CONFIG_FILE_SIZE >= MAX_JSON_CONFIG_FILE_SIZE_CUSTOM, "Limits.hpp not adjusted MAX_JSON_CONFIG_FILE_SIZE");
   if (HomieInternals::MAX_JSON_CONFIG_FILE_SIZE < MAX_JSON_CONFIG_FILE_SIZE_CUSTOM)
   {
-    //increase the config settings
+    // increase the config settings
     Serial << "Limits.hpp is not adjusted, please search for this string and increase" << endl;
     return;
   }
 
-   /************************* Start Homie Framework ***************/
+  /************************* Start Homie Framework ***************/
   Homie_setFirmware("PlantControl", FIRMWARE_VERSION);
   Homie.disableLedFeedback();
   Homie_setBrand("PlantControl");
   // Set default values
 
-  //in seconds
+  // in seconds
   deepSleepTime.setDefaultValue(600).setValidator([](long candidate)
                                                   { return (candidate > 0) && (candidate < (60 * 60 * 2) /** 2h max sleep */); });
   deepSleepNightTime.setDefaultValue(600);
@@ -778,13 +788,15 @@ void safeSetup()
                                                          { return (candidate > 0) && (candidate < (20)); });
 
 #if defined(TIMED_LIGHT_PIN)
+  timedLightPowerLevel.setDefaultValue(25).setValidator([](long candidate)
+                                                        { return (candidate > 0) && (candidate <= (255)); });
   timedLightStart.setDefaultValue(18).setValidator([](long candidate)
                                                    { return (candidate > 0) && (candidate < (25)); });
   timedLightEnd.setDefaultValue(23).setValidator([](long candidate)
                                                  { return (candidate > 0) && (candidate < (24)); });
   timedLightOnlyWhenDark.setDefaultValue(true);
   timedLightVoltageCutoff.setDefaultValue(3.8).setValidator([](double candidate)
-                                                            { return (candidate > 3.3) && (candidate < (4.2)); });
+                                                            { return ((candidate > 3.3 || candidate == -1) && (candidate < (50))); });
 #endif // TIMED_LIGHT_PIN
 
   Homie.setLoopFunction(homieLoop);
@@ -797,12 +809,13 @@ void safeSetup()
   }
   readPowerSwitchedSensors();
 
-
   Homie.setup();
 
+  Wire = TwoWire(0);
+  Wire.setPins(SENSOR_TANK_SDA, SENSOR_TANK_SCL);
+  Wire.begin();
 
-
- /************************* Start One-Wire bus ***************/
+  /************************* Start One-Wire bus ***************/
   int tempInitStartTime = millis();
   uint8_t sensorCount = 0U;
 
@@ -820,7 +833,7 @@ void safeSetup()
   /* Measure temperature TODO idea: move this into setup */
   if (sensorCount > 0)
   {
-    //sensors.setResolution(DS18B20_RESOLUTION);
+    // sensors.setResolution(DS18B20_RESOLUTION);
     sensors.requestTemperatures();
   }
 
@@ -830,10 +843,6 @@ void safeSetup()
     for (int i = 0; i < MAX_PLANTS; i++)
     {
       mPlants[i].advertise();
-      //write to temperature node instead
-      if(!equalish(mPlants[i].getCurrentTemperature(),PLANT_WITHOUT_TEMPSENSOR)){
-        mqttWrite(&sensorTemp, "Plant" + String(i), String(mPlants[i].getCurrentTemperature()));
-      }
     }
     mPlants[0].setSwitchHandler(switch1);
     mPlants[1].setSwitchHandler(switch2);
@@ -894,7 +903,7 @@ void safeSetup()
     }
 
     readOneWireSensors();
-    //prevent BOD to be paranoid
+    // prevent BOD to be paranoid
     WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
     digitalWrite(OUTPUT_ENABLE_PUMP, HIGH);
     delay(100);
@@ -970,7 +979,14 @@ void loop()
       digitalWrite(OUTPUT_ENABLE_SENSOR, !digitalRead(OUTPUT_ENABLE_SENSOR));
       if (mConfigured)
       {
-        nextBlink = millis() + 500;
+        if (otaRunning)
+        {
+          nextBlink = millis() + 100;
+        }
+        else
+        {
+          nextBlink = millis() + 501;
+        }
       }
       else
       {
@@ -1056,11 +1072,24 @@ void plantcontrol()
     Serial.flush();
   }
 
-  bool isLowLight = (mSolarVoltage < SOLAR_CHARGE_MIN_VOLTAGE);
-  bool hasWater = true; //FIXME remaining > waterLevelMin.get();
-  //FIXME no water warning message
+#if defined(TIMED_LIGHT_PIN)
+  bool isLowLight = mSolarVoltage <= 9;
+  bool shouldLight = determineTimedLightState(isLowLight);
+  if (shouldLight)
+  {
+    ulp_pwm_set_level(timedLightPowerLevel.get());
+  }
+  else
+  {
+    ulp_pwm_set_level(0);
+  }
+
+#endif // TIMED_LIGHT_PIN
+
+  bool hasWater = true; // FIXME remaining > waterLevelMin.get();
+  // FIXME no water warning message
   pumpToRun = determineNextPump(isLowLight);
-  //early aborts
+  // early aborts
   if (pumpToRun != -1)
   {
     if (hasWater)
@@ -1083,12 +1112,6 @@ void plantcontrol()
   {
     espDeepSleep();
   }
-
-#if defined(TIMED_LIGHT_PIN)
-  bool shouldLight = determineTimedLightState(isLowLight);
-  timedLightOn = shouldLight;
-  digitalWrite(TIMED_LIGHT_PIN, shouldLight);
-#endif // TIMED_LIGHT_PIN
 }
 
 /** @}*/
@@ -1100,7 +1123,7 @@ bool determineTimedLightState(bool lowLight)
   long hoursStart = timedLightStart.get();
   long hoursEnd = timedLightEnd.get();
 
-  //ntp missing
+  // ntp missing
   if (getCurrentTime() < 10000)
   {
     timedLightNode.setProperty("state").send(String("Off, missing ntp"));
@@ -1113,13 +1136,19 @@ bool determineTimedLightState(bool lowLight)
     return false;
   }
 
-  if (((hoursStart > hoursEnd) &&
-       (getCurrentHour() >= hoursStart || getCurrentHour() <= hoursEnd)) ||
-      /* Handle e.g. start = 8, end = 21 */
+  int curHour = getCurrentHour();
+
+  bool condition1 = ((hoursStart > hoursEnd) &&
+                     (curHour >= hoursStart || curHour <= hoursEnd));
+  bool condition2 = /* Handle e.g. start = 8, end = 21 */
+
       ((hoursStart < hoursEnd) &&
-       (getCurrentHour() >= hoursStart && getCurrentHour() <= hoursEnd)))
+       (curHour >= hoursStart && curHour <= hoursEnd));
+  timedLightNode.setProperty("debug").send(String(curHour) + " " + String(hoursStart) + " " + String(hoursEnd) + " " + String(condition1) + " " + String(condition2));
+  if (condition1 || condition2)
   {
-    if (!timedLightLowVoltageTriggered && battery.getVoltage(BATTSENSOR_INDEX_BATTERY) >= timedLightVoltageCutoff.get())
+    bool voltageOk = !timedLightLowVoltageTriggered && battery.getVoltage(BATTSENSOR_INDEX_BATTERY) >= timedLightVoltageCutoff.get();
+    if (voltageOk || equalish(timedLightVoltageCutoff.get(), -1))
     {
       timedLightNode.setProperty("state").send(String("On"));
       return true;
diff --git a/esp32test/Esp32DeepSleepTest/include/DS2438.h b/esp32test/Esp32DeepSleepTest/include/DS2438.h
deleted file mode 100644
index 0809015..0000000
--- a/esp32test/Esp32DeepSleepTest/include/DS2438.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- *   DS2438.h
- *
- *   by Joe Bechter
- *
- *   (C) 2012, bechter.com
- *
- *   All files, software, schematics and designs are provided as-is with no warranty.
- *   All files, software, schematics and designs are for experimental/hobby use.
- *   Under no circumstances should any part be used for critical systems where safety,
- *   life or property depends upon it. You are responsible for all use.
- *   You are free to use, modify, derive or otherwise extend for your own non-commercial purposes provided
- *       1. No part of this software or design may be used to cause injury or death to humans or animals.
- *       2. Use is non-commercial.
- *       3. Credit is given to the author (i.e. portions © bechter.com), and provide a link to the original source.
- *
- */
-
-#ifndef DS2438_h
-#define DS2438_h
-
-#include <Arduino.h>
-#include <OneWire.h>
-
-#define DS2438_TEMPERATURE_CONVERSION_COMMAND 0x44
-#define DS2438_VOLTAGE_CONVERSION_COMMAND 0xb4
-#define DS2438_WRITE_SCRATCHPAD_COMMAND 0x4e
-#define DS2438_COPY_SCRATCHPAD_COMMAND 0x48
-#define DS2438_READ_SCRATCHPAD_COMMAND 0xbe
-#define DS2438_RECALL_MEMORY_COMMAND 0xb8
-
-#define PAGE_MIN 0
-#define PAGE_MAX 7
-
-#define DS2438_CHA 0
-#define DS2438_CHB 1
-
-#define DS2438_MODE_CHA 0x01
-#define DS2438_MODE_CHB 0x02
-#define DS2438_MODE_TEMPERATURE 0x04
-
-#define DS2438_TEMPERATURE_DELAY 10
-#define DS2438_VOLTAGE_CONVERSION_DELAY 8
-
-#define DEFAULT_PAGE0(var) uint8_t var[8] { \
-    0b00001011 /* X, ADB=0, NVB=0, TB=0, AD=1, EE=0, CA=1, IAD=1 */, \
-    0, /* Temperatur */ \
-    0, /* Temperatur */ \
-    0, /* Voltage */ \
-    0, /* Voltage */ \
-    0, /* Current */ \
-    0, /* Current */ \
-    0 /* Threashold */ \
-}
-
-typedef struct PageOne {
-    uint8_t eleapsedTimerByte0; /**< LSB of timestamp */
-    uint8_t eleapsedTimerByte1;
-    uint8_t eleapsedTimerByte2;
-    uint8_t eleapsedTimerByte3; /**< MSB of timestamp */
-    uint8_t ICA; /**< Integrated Current Accumulator (current flowing into and out of the battery) */
-    uint8_t offsetRegisterByte0; /**< Offset for ADC calibdation */
-    uint8_t offsetRegisterByte1; /**< Offset for ADC calibdation */
-    uint8_t reserved;
-} PageOne_t;
-
-typedef struct PageSeven {
-    uint8_t userByte0;
-    uint8_t userByte1;
-    uint8_t userByte2;
-    uint8_t userByte3;
-    uint8_t CCA0;   /**< Charging Current Accumulator (CCA) */
-    uint8_t CCA1;   /**< Charging Current Accumulator (CCA) */
-    uint8_t DCA0;   /**< Discharge Current Accumulator (DCA) */
-    uint8_t DCA1;   /**< Discharge Current Accumulator (DCA) */
-} PageSeven_t;
-
-typedef uint8_t DeviceAddress[8];
-
-class DS2438 {
-    public:
-        DS2438(OneWire *ow, float currentShunt);
-        DS2438(OneWire *ow, uint8_t *address);
-
-        void begin();
-        void update();
-        double getTemperature();
-        float getVoltage(int channel=DS2438_CHA);
-        float getCurrent();
-        boolean isError();
-        boolean isFound();
-    private:
-        bool validAddress(const uint8_t*);
-        bool validFamily(const uint8_t* deviceAddress);
-        
-        bool deviceFound = false;
-        OneWire *_ow;
-        DeviceAddress _address;
-        uint8_t _mode;
-        double _temperature;
-        float _voltageA;
-        float _voltageB;
-        float _current;
-        float _currentShunt;
-        boolean _error;
-        boolean startConversion(int channel, boolean doTemperature);
-        boolean selectChannel(int channel);
-        void writePage(int page, uint8_t *data);
-        boolean readPage(int page, uint8_t *data);
-};
-
-#endif
\ No newline at end of file
diff --git a/esp32test/Esp32DeepSleepTest/include/ulp-pwm.h b/esp32test/Esp32DeepSleepTest/include/ulp-pwm.h
new file mode 100644
index 0000000..15f5d35
--- /dev/null
+++ b/esp32test/Esp32DeepSleepTest/include/ulp-pwm.h
@@ -0,0 +1,187 @@
+#ifndef ULP_PWM_h
+#define ILP_PWM_h
+
+#include <Arduino.h>
+#include "driver/rtc_io.h"
+#include "soc/rtc_cntl_reg.h"
+#include "soc/rtc.h"
+#include "esp32/ulp.h"
+
+#define LBL_START 1
+#define LBL_DELAY_ON 2
+#define LBL_DELAY_OFF 3
+#define LBL_SKIP_ON 4
+#define LBL_SKIP_OFF 5
+#define REGISTER_DELAY_LOOP_COUNTER R0
+#define REGISTER_TICKS_ON R1
+#define REGISTER_TICKS_OFF R2
+#define TOTAL_TICKS_DELAY 255
+#define PIN GPIO_NUM_12
+
+//support 20 vars
+const size_t ulp_var_offset = CONFIG_ULP_COPROC_RESERVE_MEM - 20;
+//use the first for dimming
+const size_t ulp_dimm_offset = ulp_var_offset + 1;
+const size_t ulp_alive_offset = ulp_var_offset + 2;
+
+//see https://github.com/perseus086/ESP32-notes
+const uint32_t rtc_bit[40] = {
+    25, //gpio0
+    0,  //gpio1
+    26, //gpio2
+    0,  //gpio3
+    24, //gpio4
+    0,  //gpio5
+    0,  //gpio6
+    0,  //gpio7
+    0,  //gpio8
+    0,  //gpio9
+    0,  //gpio10
+    0,  //gpio11
+    29, //gpio12
+    28, //gpio13
+    30, //gpio14
+    27, //gpio15
+    0,  //gpio16
+    31, //gpio17
+    0,  //gpio18
+    0,  //gpio19
+    0,  //gpio20
+    0,  //gpio21
+    0,  //gpio22
+    0,  //gpio23
+    0,  //gpio24
+    20, //gpio25
+    21, //gpio26
+    0,  //gpio27
+    0,  //gpio28
+    0,  //gpio29
+    0,  //gpio30
+    0,  //gpio31
+    23, //gpio32
+    22, //gpio33
+    18, //gpio34
+    19, //gpio35
+    14, //gpio36
+    15, //gpio37
+    16, //gpio38
+    17  //gpio39
+};
+
+static inline void ulp_data_write(size_t offset, uint16_t value)
+{
+    if (offset >= CONFIG_ULP_COPROC_RESERVE_MEM || offset <= ulp_var_offset)
+    {
+        Serial.print("Invalid ULP offset detected, refusing write!");
+        Serial.print(offset);
+        Serial.print("-");
+        Serial.print(ulp_var_offset);
+        Serial.print("-");
+        Serial.println(CONFIG_ULP_COPROC_RESERVE_MEM);
+        return;
+    }
+    else
+    {
+        RTC_SLOW_MEM[offset] = value;
+    }
+}
+
+static inline uint16_t ulp_data_read(size_t offset)
+{
+    if (offset >= CONFIG_ULP_COPROC_RESERVE_MEM || offset <= ulp_var_offset)
+    {
+        Serial.print("Invalid ULP offset detected");
+        Serial.print(offset);
+        Serial.print("-");
+        Serial.print(ulp_var_offset);
+        Serial.print("-");
+        Serial.println(CONFIG_ULP_COPROC_RESERVE_MEM);
+    }
+    return RTC_SLOW_MEM[offset] & 0xffff;
+}
+
+static inline uint32_t rtc_io_number_get(gpio_num_t gpio_num)
+{
+    assert(rtc_gpio_is_valid_gpio(gpio_num) && "Invalid GPIO for RTC");
+    uint32_t bit = rtc_bit[gpio_num];
+    Serial.print("Resolved GPIO ");
+    Serial.print(gpio_num);
+    Serial.print(" to rtc bit ");
+    Serial.println(bit);
+    return bit;
+}
+
+void ulp_pwm_start(void)
+{
+    rtc_gpio_init(PIN);
+    rtc_gpio_set_direction(PIN, RTC_GPIO_MODE_OUTPUT_ONLY);
+    rtc_gpio_set_level(PIN, 0);
+    const uint32_t rtc_gpio = rtc_io_number_get(PIN);
+
+    // Define ULP program
+    const ulp_insn_t ulp_prog[] = {
+        M_LABEL(LBL_START),
+
+        I_MOVI(REGISTER_DELAY_LOOP_COUNTER, 1),
+        I_MOVI(REGISTER_TICKS_ON, 0),
+        I_ST(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_ON, ulp_alive_offset), //store 1 with 0 offset into alive
+
+        I_LD(REGISTER_TICKS_ON, REGISTER_TICKS_ON, ulp_dimm_offset), //REGISTER_TICKS_ON = RTC_DATA[0+ulp_dimm_offset]
+        //in total there is always 255 delay loop iterations, but in different duty cycle
+        I_MOVI(REGISTER_TICKS_OFF, TOTAL_TICKS_DELAY),
+        I_SUBR(REGISTER_TICKS_OFF, REGISTER_TICKS_OFF, REGISTER_TICKS_ON),
+
+        //on phase
+        I_MOVR(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_ON),
+        M_BL(LBL_SKIP_ON, 1),                                 //if never on, skip on phase
+        I_WR_REG(RTC_GPIO_OUT_REG, rtc_gpio, rtc_gpio, HIGH), // on
+        M_LABEL(LBL_DELAY_ON),
+        I_DELAY(1),                                                          //wait 1 clock
+        I_SUBI(REGISTER_DELAY_LOOP_COUNTER, REGISTER_DELAY_LOOP_COUNTER, 1), // REGISTER_DELAY_LOOP_COUNTER--
+        M_BGE(LBL_DELAY_ON, 1),                                              //if time left, goto start of on loop
+        M_LABEL(LBL_SKIP_ON),
+
+        //off phase
+        I_MOVR(REGISTER_DELAY_LOOP_COUNTER, REGISTER_TICKS_OFF),
+
+        M_BL(LBL_SKIP_OFF, 1),                               //if never off, skip on phase
+        I_WR_REG(RTC_GPIO_OUT_REG, rtc_gpio, rtc_gpio, LOW), // on
+        M_LABEL(3),
+        I_DELAY(1),                                                          //wait 1 clock
+        I_SUBI(REGISTER_DELAY_LOOP_COUNTER, REGISTER_DELAY_LOOP_COUNTER, 1), // REGISTER_DELAY_LOOP_COUNTER--
+        M_BGE(3, 1),                                                         //if time left, goto start of on loop
+        M_LABEL(LBL_SKIP_OFF),
+
+        M_BX(LBL_START),
+    };
+    // Run ULP program
+    size_t size = sizeof(ulp_prog) / sizeof(ulp_insn_t);
+    assert(size < ulp_var_offset && "ULP_DATA_OFFSET needs to be greater or equal to the program size");
+    esp_err_t error = ulp_process_macros_and_load(0, ulp_prog, &size);
+    Serial.print("ULP bootstrap status ");
+    Serial.println(error);
+
+    //allow glitchless start
+    ulp_data_write(ulp_alive_offset, 0);
+
+    error = ulp_run(0);
+    Serial.print("ULP start status ");
+    Serial.println(error);
+}
+
+static inline void ulp_pwm_set_level(uint8_t level)
+{
+    ulp_data_write(ulp_dimm_offset, level);
+}
+
+static inline void ulp_pwm_init()
+{
+    ulp_data_write(ulp_alive_offset, 0);
+    delay(10);
+    if (ulp_data_read(ulp_alive_offset) == 0)
+    {
+        ulp_pwm_start();
+    }
+}
+
+#endif
\ No newline at end of file
diff --git a/esp32test/Esp32DeepSleepTest/src/DS2438.cpp b/esp32test/Esp32DeepSleepTest/src/DS2438.cpp
deleted file mode 100644
index 791b76d..0000000
--- a/esp32test/Esp32DeepSleepTest/src/DS2438.cpp
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- *   DS2438.cpp
- *
- *   by Joe Bechter
- *
- *   (C) 2012, bechter.com
- *
- *   All files, software, schematics and designs are provided as-is with no warranty.
- *   All files, software, schematics and designs are for experimental/hobby use.
- *   Under no circumstances should any part be used for critical systems where safety,
- *   life or property depends upon it. You are responsible for all use.
- *   You are free to use, modify, derive or otherwise extend for your own non-commercial purposes provided
- *       1. No part of this software or design may be used to cause injury or death to humans or animals.
- *       2. Use is non-commercial.
- *       3. Credit is given to the author (i.e. portions © bechter.com), and provide a link to the original source.
- *
- */
-
-#include "DS2438.h"
-
-// DSROM FIELDS
-#define DSROM_FAMILY    0
-#define DSROM_CRC       7
-
-#define DS2438MODEL     0x26
-
-DS2438::DS2438(OneWire *ow, float currentShunt = 1.0f) {
-    _ow = ow;
-    _currentShunt = currentShunt;
-};
-
-void DS2438::begin(){
-    DeviceAddress searchDeviceAddress;
-
-	_ow->reset_search();
-    memset(searchDeviceAddress,0, 8);
-    _temperature = 0;
-    _voltageA = 0.0;
-    _voltageB = 0.0;
-    _error = true;
-    _mode = (DS2438_MODE_CHA | DS2438_MODE_CHB | DS2438_MODE_TEMPERATURE);
-
-	deviceFound = false; // Reset the number of devices when we enumerate wire devices
-
-	while (_ow->search(searchDeviceAddress)) {
-		if (validAddress(searchDeviceAddress)) {
-			if (validFamily(searchDeviceAddress)) {
-                memcpy(_address,searchDeviceAddress,8);
-                DEFAULT_PAGE0(defaultConfig);
-                writePage(0, defaultConfig);
-                deviceFound = true;
-			}
-		}
-	}
-}
-
-bool DS2438::isFound(){
-    return deviceFound;
-}
-
-bool DS2438::validAddress(const uint8_t* deviceAddress) {
-	return (_ow->crc8(deviceAddress, 7) == deviceAddress[DSROM_CRC]);
-}
-
-bool DS2438::validFamily(const uint8_t* deviceAddress) {
-	switch (deviceAddress[DSROM_FAMILY]) {
-	case DS2438MODEL:
-		return true;
-	default:
-		return false;
-	}
-}
-
-void DS2438::update() {
-    uint8_t data[9];
-
-    _error = true;
-    if(!isFound()){
-        return;
-    }
-
-    if (_mode & DS2438_MODE_CHA || _mode == DS2438_MODE_TEMPERATURE) {
-        boolean doTemperature = _mode & DS2438_MODE_TEMPERATURE;
-        if (!startConversion(DS2438_CHA, doTemperature)) {
-            Serial.println("Error starting temp conversion ds2438 channel a");
-            return;
-        }
-        if (!readPage(0, data)){
-            
-            Serial.println("Error reading zero page ds2438 channel a");
-            return;
-        }
-        Serial.print(data[0],16);
-        Serial.print(" ");
-        Serial.print(data[1],16);
-        Serial.print(" ");
-        Serial.print(data[2],16);
-        Serial.print(" ");
-        Serial.print(data[3],16);
-        Serial.print(" ");
-        Serial.print(data[4],16);
-        Serial.print(" ");
-        Serial.print(data[5],16);
-        Serial.print(" ");
-        Serial.print(data[6],16);
-        Serial.print(" ");
-        Serial.println(data[7],16);
-
-            
-        if (doTemperature) {
-            _temperature = (double)(((((int16_t)data[2]) << 8) | (data[1] & 0x0ff)) >> 3) * 0.03125;
-        }
-        if (_mode & DS2438_MODE_CHA) {
-            _voltageA = (((data[4] << 8) & 0x00300) | (data[3] & 0x0ff)) / 100.0;
-        }
-    }
-    if (_mode & DS2438_MODE_CHB) {
-        boolean doTemperature = _mode & DS2438_MODE_TEMPERATURE && !(_mode & DS2438_MODE_CHA);
-        if (!startConversion(DS2438_CHB, doTemperature)) {
-            Serial.println("Error starting temp conversion channel b ds2438");
-            return;
-        }
-        if (!readPage(0, data)){
-            Serial.println("Error reading zero page ds2438 channel b");
-            return;
-        }
-        if (doTemperature) {
-            int16_t upperByte = ((int16_t)data[2]) << 8;
-            int16_t lowerByte = data[1] >> 3;
-            int16_t fullByte = (upperByte | lowerByte);
-            _temperature = ((double)fullByte) * 0.03125;
-        }
-        _voltageB = (((data[4] << 8) & 0x00300) | (data[3] & 0x0ff)) / 100.0;
-    }
-    
-    int16_t upperByte = ((int16_t)data[6]) << 8;
-    int16_t lowerByte = data[5];
-    int16_t fullByte = (int16_t)(upperByte | lowerByte);
-    float fullByteb = fullByte;
-    _current = (fullByteb) / ((4096.0f * _currentShunt));
-    _error = false;
-        Serial.print(data[0],16);
-        Serial.print(" ");
-        Serial.print(data[1],16);
-        Serial.print(" ");
-        Serial.print(data[2],16);
-        Serial.print(" ");
-        Serial.print(data[3],16);
-        Serial.print(" ");
-        Serial.print(data[4],16);
-        Serial.print(" ");
-        Serial.print(data[5],16);
-        Serial.print(" ");
-        Serial.print(data[6],16);
-        Serial.print(" ");
-        Serial.println(data[7],16);
-        Serial.println("-");
-
-
-
-    uint16_t ICA = 0;
-    if (readPage(1, data)){
-        PageOne_t *pOne = (PageOne_t *) data;
-        Serial.println(pOne->ICA);
-        float Ah = pOne->ICA / (2048.0f * _currentShunt);
-        Serial.print("Ah=");
-        Serial.println(Ah);
-        ICA = pOne->ICA;
-    }
-
-       
-
-
-    if (readPage(7, data)){
-        PageSeven_t *pSeven = (PageSeven_t *) data;
-        int16_t CCA = pSeven->CCA0 | ((int16_t) pSeven->CCA1) << 8;
-        int16_t DCA = pSeven->DCA0 | ((int16_t) pSeven->DCA1) << 8;
-        Serial.println("ICA, DCA, CCA");
-        Serial.print(ICA);
-        Serial.print(", ");
-        Serial.print(DCA);
-        Serial.print(", ");
-        Serial.println(CCA);
-    }
-
-}
-
-double DS2438::getTemperature() {
-    return _temperature;
-}
-
-float DS2438::getVoltage(int channel) {
-    if (channel == DS2438_CHA) {
-        return _voltageA;
-    } else if (channel == DS2438_CHB) {
-        return _voltageB;
-    } else {
-        return 0.0;
-    }
-}
-
-float DS2438::getCurrent() {
-    return _current;
-}
-
-boolean DS2438::isError() {
-    return _error;
-}
-
-boolean DS2438::startConversion(int channel, boolean doTemperature) {
-    if(!isFound()){
-        return false;
-    }
-    if (!selectChannel(channel)){
-        return false;
-    }
-    _ow->reset();
-    _ow->select(_address);
-    if (doTemperature) {
-        _ow->write(DS2438_TEMPERATURE_CONVERSION_COMMAND, 0);
-        delay(DS2438_TEMPERATURE_DELAY);
-        _ow->reset();
-        _ow->select(_address);
-    }
-    _ow->write(DS2438_VOLTAGE_CONVERSION_COMMAND, 0);
-    delay(DS2438_VOLTAGE_CONVERSION_DELAY);
-    return true;
-}
-
-boolean DS2438::selectChannel(int channel) {
-    if(!isFound()){
-        return false;
-    }
-    uint8_t data[9];
-    if (readPage(0, data)) {
-        if (channel == DS2438_CHB){
-            data[0] = data[0] | 0x08;
-        }
-        else {
-            data[0] = data[0] & 0xf7;
-        }
-        writePage(0, data);
-        return true;
-    }
-    Serial.println("Could not read page zero data");
-    return false;
-}
-
-void DS2438::writePage(int page, uint8_t *data) {
-    _ow->reset();
-    _ow->select(_address);
-    _ow->write(DS2438_WRITE_SCRATCHPAD_COMMAND, 0);
-    if ((page >= PAGE_MIN) && (page <= PAGE_MAX)) {
-        _ow->write(page, 0);
-    } else {
-        return;
-    }
-    for (int i = 0; i < 8; i++){
-        _ow->write(data[i], 0);
-    }
-    _ow->reset();
-    _ow->select(_address);
-    _ow->write(DS2438_COPY_SCRATCHPAD_COMMAND, 0);
-    _ow->write(page, 0);
-}
-
-boolean DS2438::readPage(int page, uint8_t *data) {
-    //TODO if all data is 0 0 is a valid crc, but most likly not as intended
-    _ow->reset();
-    _ow->select(_address);
-    _ow->write(DS2438_RECALL_MEMORY_COMMAND, 0);
-    if ((page >= PAGE_MIN) && (page <= PAGE_MAX)) {
-        _ow->write(page, 0);
-    } else {
-        return false;
-    }
-    _ow->reset();
-    _ow->select(_address);
-    _ow->write(DS2438_READ_SCRATCHPAD_COMMAND, 0);
-    _ow->write(page, 0);
-    for (int i = 0; i < 9; i++){
-        data[i] = _ow->read();
-    }
-    return _ow->crc8(data, 8) == data[8];
-}
-
diff --git a/esp32test/Esp32DeepSleepTest/src/main.cpp b/esp32test/Esp32DeepSleepTest/src/main.cpp
index 9d7d074..76edff7 100644
--- a/esp32test/Esp32DeepSleepTest/src/main.cpp
+++ b/esp32test/Esp32DeepSleepTest/src/main.cpp
@@ -13,7 +13,10 @@ int16_t         pulses2        = 0;
 int plantId = 0;
 
 void setup() {
-
+RTC_SLOW_ATTR uint8_t tick = 0;
+RTC_SLOW_ATTR bool dir = true;
+void setup()
+{
   Serial.begin(115200);
   pinMode(OUTPUT_SENSOR, OUTPUT);
 
@@ -55,4 +58,4 @@ void loop() {
     pcnt_counter_clear(PCNT_UNIT_0);
     
     Serial.println(pulses*2);
-}
\ No newline at end of file
+}