Interference between HYDROS CTD and Yosemitech Turbidity Sensor

Tagged: CTD -9999 yosemitech

This topic has 4 replies, 2 voices, and was last updated 2022-01-18 at 3:19 PM by James_NZ.

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2021-12-23 at 2:35 PM #16198
James_NZ
Participant
Hi all,

I have a frustrating problem at one of my sites where the turbidity sensor seems to be interfering with CTD readings resulting in -9999 readings for all CTD measurements. I’m using a

Hi all,

I have a frustrating problem at one of my sites where the turbidity sensor seems to be interfering with CTD readings resulting in -9999 readings for all CTD measurements. I’m using a DIY MODBUS shield for the turbidity sensor, and when I remove that the CTD reads perfectly. This puts me in a situation of only being able to read the CTD or turbidity sensor.

The really annoying thing is that I have tried 3 different Mayfly boards, and the interference disappears with one board, but that board seems to have a problem with the solar regulator so the battery won’t charge!!

Does anyone have any thoughts? Perhaps I could hack the code so that the CTD powers up in isolation of the turbidity sensor and they read separately?

Thanks in advance for your help.

James

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2021-12-23 at 3:30 PM #16201
Anthony Aufdenkampe
Participant
The first explanation that pops to mind is that the DIY Modbus wing has power bleed from the digital pins when the power is turned off.

Modbus stop bits are high, which leaves the AltSoftSerial trans

The first explanation that pops to mind is that the DIY Modbus wing has power bleed from the digital pins when the power is turned off.

Modbus stop bits are high, which leaves the AltSoftSerial transmit pin (5 or 6) at 3.3V when the sensor power shuts down. This then bleeds through RS485 converter (when it is powered off) over to the switched power rails, which then interferes with the startup of some other sensors, such as the MaxSonar. For a solution, see ModularSensors Issue “Add to Modbus an AltSoftSerial “flush” or “end” function, to set pins low #140″ for the coding solution.

The coding solution is now provided in the complex_loop option shown in the menu_a_la_carte.ino example. Specifically, at the end of every loop, the AltSoftSerial pins need to be set to low before the system is put to sleep, as shown here: https://github.com/EnviroDIY/ModularSensors/blob/292371055ab9d9b884f8fedb7c9587181cf7789d/examples/menu_a_la_carte/menu_a_la_carte.ino#L2928-L2932

This in turn required an altSoftSerial.begin(9600); statement at the top of every measure loop, as shown here: https://github.com/EnviroDIY/ModularSensors/blob/292371055ab9d9b884f8fedb7c9587181cf7789d/examples/menu_a_la_carte/menu_a_la_carte.ino#L2850-L2854

This means that you must use the complex loop every time you use these Modbus Wings.

Let us know if that solves it.

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2021-12-23 at 3:57 PM #16207
James_NZ
Participant
Thank you Anthony. It sounds like this may be the problem. It seems strange that I have 9 of 10 sites operating perfectly, but this site refuses to play nice. I will try your solution when I ge

Thank you Anthony. It sounds like this may be the problem. It seems strange that I have 9 of 10 sites operating perfectly, but this site refuses to play nice. I will try your solution when I get some time over the Christmas break.

Have a great Christmas and New Year.

James

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2022-01-17 at 7:50 PM #16281

James_NZ

Participant

Hi @aufdenkampe,

I have followed your advice and I think this is working, i.e., I am no longer having problems with -9999 values for the CTD.

However, the complex loop code is preventing publication

Hi @aufdenkampe,

I have followed your advice and I think this is working, i.e., I am no longer having problems with -9999 values for the CTD.

However, the complex loop code is preventing publication of data to MMW. I’m sure this is something simple, but I can’t seem to figure it out.

I have tracked the issue to line 483 where the code checks to see if the modem is connected to the internet, i.e., ‘if(modem.connectInternet())’. The lights on the modem don’t seem to power up at all, and the loop just continues reading sensor values and storing it on the SD card. Am I missing something in the setup loop?

Thanks again for your help.

James

/*****************************************************************************
simple_logging.ino
Written By:  Sara Damiano (sdamiano@stroudcenter.org)
Development Environment: PlatformIO
Hardware Platform: EnviroDIY Mayfly Arduino Datalogger
Software License: BSD-3.
  Copyright (c) 2017, Stroud Water Research Center (SWRC)
  and the EnviroDIY Development Team

This sketch is an example of logging data to an SD card

DISCLAIMER:
THIS CODE IS PROVIDED "AS IS" - NO WARRANTY IS GIVEN.
*****************************************************************************/
// ==========================================================================
//    Defines for the Arduino IDE
//    In PlatformIO, set these build flags in your platformio.ini
// ==========================================================================
#ifndef TINY_GSM_RX_BUFFER
#define TINY_GSM_RX_BUFFER 64
#endif
#ifndef TINY_GSM_YIELD_MS
#define TINY_GSM_YIELD_MS 2
#endif
#ifndef MQTT_MAX_PACKET_SIZE
#define MQTT_MAX_PACKET_SIZE 240
#endif

// ==========================================================================
//    Include the base required libraries
// ==========================================================================
#include <Arduino.h>  // The base Arduino library
#include <EnableInterrupt.h>  // for external and pin change interrupts
#include <LoggerBase.h>  // The modular sensors library

//#include <Adafruit_ADS1015.h>
//Adafruit_ADS1115 ads;    /* Use this for the Mayfly because of the onboard 16-bit ADS1115  */


//#include <AltSoftSerial.h>
//#include <YosemitechModbus.h>

// ==========================================================================
//    Data Logger Settings
// ==========================================================================
// The name of this file
const char *sketchName = "08_Kokako.ino";
// Logger ID, also becomes the prefix for the name of the data file on SD card
const char *LoggerID = "Kokako";
// How frequently (in minutes) to log data
const uint8_t loggingInterval = 2;
// Your logger's timezone.
const int8_t timeZone = 12;  // Eastern Standard Time
// NOTE:  Daylight savings time will not be applied!  Please use standard time!


// ==========================================================================
//    Primary Arduino-Based Board and Processor
// ==========================================================================
#include <sensors/ProcessorStats.h>

const long serialBaud = 115200;   // Baud rate for the primary serial port for debugging
const int8_t greenLED = 8;        // MCU pin for the green LED (-1 if not applicable)
const int8_t redLED = 9;          // MCU pin for the red LED (-1 if not applicable)
const int8_t buttonPin = 21;      // MCU pin for a button to use to enter debugging mode  (-1 if not applicable)
const int8_t wakePin = A7;        // MCU interrupt/alarm pin to wake from sleep
// Set the wake pin to -1 if you do not want the main processor to sleep.
// In a SAMD system where you are using the built-in rtc, set wakePin to 1
const int8_t sdCardPwrPin = -1;     // MCU SD card power pin (-1 if not applicable)
const int8_t sdCardSSPin = 12;      // MCU SD card chip select/slave select pin (must be given!)
const int8_t sensorPowerPin = 22;  // MCU pin controlling main sensor power (-1 if not applicable)

// Create the main processor chip "sensor" - for general metadata
const char *mcuBoardVersion = "v0.5b";
ProcessorStats mcuBoard(mcuBoardVersion);

// ==========================================================================
//    Wifi/Cellular Modem Settings
// ==========================================================================

// Create a reference to the serial port for the modem
HardwareSerial &modemSerial = Serial1;  // Use hardware serial if possible

// Modem Pins - Describe the physical pin connection of your modem to your board
const int8_t modemVccPin = -1;      // MCU pin controlling modem power (-1 if not applicable)
//const bool useCTSforStatus = false;  // Flag to use the XBee CTS pin for status
const int8_t modemStatusPin = 19;   // MCU pin used to read modem status (-1 if not applicable)
const int8_t modemResetPin = 20;    // MCU pin connected to modem reset pin (-1 if unconnected)
const int8_t modemSleepRqPin = 23;  // MCU pin used for modem sleep/wake request (-1 if not applicable)
const int8_t modemLEDPin = redLED;  // MCU pin connected an LED to show modem status (-1 if unconnected)

// // Network connection information

// Network connection information
const char *apn = "m2m";  // The APN for the gprs connection

// const char *wifiId = "Dare_Family";  // The WiFi access point, unnecessary for gprs
// const char *wifiPwd = "119HarveyStreet";  // The password for connecting to WiFi, unnecessary for gprs

// ==========================================================================
//    The modem object
//    Note:  Don't use more than one!
// ==========================================================================
//#elif defined MS_BUILD_TESTING && defined MS_BUILD_TEST_XBEE_LTE_B
// For the u-blox SARA R410M based Digi LTE-M XBee3
// NOTE:  According to the manual, this should be less stable than transparent
// mode, but my experience is the complete reverse.
#include <modems/DigiXBeeLTEBypass.h>
//#include <modems/SodaqDigiXBeeLTEBypass.h>

const long modemBaud = 9600;  // All XBee's use 9600 by default
const bool useCTSforStatus = false;   // Flag to use the XBee CTS pin for status
// NOTE:  If possible, use the STATUS/SLEEP_not (XBee pin 13) for status, but
// the CTS pin can also be used if necessary
DigiXBeeLTEBypass modemXBLTEB(&modemSerial,
                              modemVccPin, modemStatusPin, useCTSforStatus,
                              modemResetPin, modemSleepRqPin,
                              apn);
// Create an extra reference to the modem by a generic name (not necessary)
DigiXBeeLTEBypass modem = modemXBLTEB;
// ==========================================================================

// ==========================================================================
//    Maxim DS3231 RTC (Real Time Clock)
// ==========================================================================
#include <sensors/MaximDS3231.h>  // Includes wrapper functions for Maxim DS3231 RTC

// Create a DS3231 sensor object, using this constructor function:
MaximDS3231 ds3231(1);

// ==========================================================================
//  Meter Hydros 21 Conductivity, Temperature, and Depth Sensor
// ==========================================================================
/** Start [hydros21] */
#include <sensors/DecagonCTD.h>

const char*   CTDSDI12address   = "1";    // The SDI-12 Address of the CTD
const uint8_t CTDNumberReadings = 6;      // The number of readings to average
const int8_t  CTDPower = sensorPowerPin;  // Power pin (-1 if unconnected)
const int8_t  CTDData  = 11;               // The SDI12 data pin

// Create a Decagon CTD sensor object
DecagonCTD ctd(*CTDSDI12address, CTDPower, CTDData, CTDNumberReadings);

// Create conductivity, temperature, and depth variable pointers for the CTD
//Variable* ctdCond = new DecagonCTD_Cond(&ctd,
//                                        "12345678-abcd-1234-ef00-1234567890ab");
//Variable* ctdTemp = new DecagonCTD_Temp(&ctd,
//                                        "12345678-abcd-1234-ef00-1234567890ab");
//Variable* ctdDepth =
//    new DecagonCTD_Depth(&ctd, "12345678-abcd-1234-ef00-1234567890ab");
/** End [hydros21] */

// ==========================================================================
//  Yosemitech Y511 Turbidity Sensor with Wiper
// ==========================================================================
/** Start [y511] */
#include <sensors/YosemitechY511.h>
#include <AltSoftSerial.h>
AltSoftSerial altSoftSerial;
// Create a reference to the serial port for modbus
// Extra hardware and software serial ports are created in the "Settings for
// Additional Serial Ports" section
#if defined ARDUINO_ARCH_SAMD || defined ATMEGA2560
HardwareSerial& y511modbusSerial = Serial2;  // Use hardware serial if possible
#else
AltSoftSerial& y511modbusSerial = altSoftSerial;  // For software serial
// NeoSWSerial& y511modbusSerial = neoSSerial1;  // For software serial
#endif

byte         y511ModbusAddress = 0x01;  // The modbus address of the Y511
const int8_t y511AdapterPower =
    sensorPowerPin;  // RS485 adapter power pin (-1 if unconnected)
const int8_t  y511SensorPower = -1;  // Sensor power pin
const int8_t  y511EnablePin   = -1;  // Adapter RE/DE pin (-1 if not applicable)
const uint8_t y511NumberReadings = 5;
// The manufacturer recommends averaging 10 readings, but we take 5 to minimize
// power consumption

// Create a Y511-A Turbidity sensor object
YosemitechY511 y511(y511ModbusAddress, y511modbusSerial, y511AdapterPower,
                    y511SensorPower, y511EnablePin, y511NumberReadings);

// Create turbidity and temperature variable pointers for the Y511
//Variable* y511Turb =
//    new YosemitechY511_Turbidity(&y511, "12345678-abcd-1234-ef00-1234567890ab");
//Variable* y511Temp =
//    new YosemitechY511_Temp(&y511, "12345678-abcd-1234-ef00-1234567890ab");
/** End [y511] */



// ==========================================================================
//    Creating the Variable Array[s] and Filling with Variable Objects
// ==========================================================================

Variable *variableList[] = {
    //new ProcessorStats_SampleNumber(&mcuBoard),
    //new ProcessorStats_FreeRam(&mcuBoard),
    new ProcessorStats_Battery(&mcuBoard,"3cafc793-59d4-4a89-aaa4-f0f55aaa2a43"),
    new MaximDS3231_Temp(&ds3231,"85322878-f3c6-4013-bb70-f5d05a2bd3d4"),
    new DecagonCTD_Cond(&ctd, "30b1000a-90f3-40e9-8782-0ce03291a89a"),
    new DecagonCTD_Temp(&ctd, "4940af20-f35f-4d96-9eb4-09064d1ebf6a"),
        new DecagonCTD_Depth(&ctd, "a72b2617-9d34-43e0-8429-17e817a0d686"),
        new YosemitechY511_Turbidity(&y511, "6a179ddf-7d16-4b1b-98cd-ab3ed468e70d"),
        new YosemitechY511_Temp(&y511, "c01965dd-8952-4e0c-9201-f83fcfdc2bc8")

    // Additional sensor variables can be added here, by copying the syntax
    //   for creating the variable pointer (FORM1) from the <code>menu_a_la_carte.ino</code> example
    // The example code snippets in the wiki are primarily FORM2.
};
// Count up the number of pointers in the array
int variableCount = sizeof(variableList) / sizeof(variableList[0]);

// Create the VariableArray object
VariableArray varArray(variableCount, variableList);


// ==========================================================================
//     The Logger Object[s]
// ==========================================================================

// Create a logger instance
Logger dataLogger(LoggerID, loggingInterval, &varArray);

// ==========================================================================
//    A Publisher to Monitor My Watershed / EnviroDIY Data Sharing Portal
// ==========================================================================
// Device registration and sampling feature information can be obtained after
// registration at https://monitormywatershed.org or https://data.envirodiy.org
const char *registrationToken = "3f8eb19c-11b1-4d81-a80d-e3443728ab03";   // Device registration token
const char *samplingFeature = "89551d76-a825-4357-94f2-23aa82b52cfe";     // Sampling feature UUID

// const char *UUIDs[] =                                                      // UUID array for device sensors
// {
//     "0bc19c50-67d8-4012-9e17-fb32db82f1ca",   // Temperature (Maxim_DS18B20_Temp)
//     "846f84dc-4455-47f3-bd38-51a21e20fa50"    // Temperature (Maxim_DS3231_Temp)
// };


// Create a data publisher for the EnviroDIY/WikiWatershed POST endpoint
#include <publishers/EnviroDIYPublisher.h>
EnviroDIYPublisher EnviroDIYPOST(dataLogger, &modem.gsmClient, registrationToken, samplingFeature);


// ==========================================================================
//    Working Functions
// ==========================================================================

// Flashes the LED's on the primary board
void greenredflash(uint8_t numFlash = 4, uint8_t rate = 75)
{
  for (uint8_t i = 0; i < numFlash; i++) {
    digitalWrite(greenLED, HIGH);
    digitalWrite(redLED, LOW);
    delay(rate);
    digitalWrite(greenLED, LOW);
    digitalWrite(redLED, HIGH);
    delay(rate);
  }
  digitalWrite(redLED, LOW);
}

// Read's the battery voltage
// NOTE: This will actually return the battery level from the previous update!
float getBatteryVoltage()
{
    if (mcuBoard.sensorValues[0] == -9999) mcuBoard.update();
    return mcuBoard.sensorValues[0];
}


//Median Funtion
// calculate a median for set of values in buffer
int getMedianNum(int bArray[], int iFilterLen)
{     int bTab[iFilterLen];
   for (byte i = 0; i<iFilterLen; i++)
 bTab[i] = bArray[i];                  // copy input array into BTab[] array
   int i, j, bTemp;
   for (j = 0; j < iFilterLen - 1; j++)        // put array in ascending order
   {  for (i = 0; i < iFilterLen - j - 1; i++)
       {  if (bTab[i] > bTab[i + 1])
           {  bTemp = bTab[i];
              bTab[i] = bTab[i + 1];
              bTab[i + 1] = bTemp;
            }
        }
   }
if ((iFilterLen & 1) > 0)  // check to see if iFilterlen is odd or even using & (bitwise AND) i.e if length &AND 1 is TRUE (>0)
     bTemp = bTab[(iFilterLen - 1) / 2];     // then then it is odd, and should take the central value
 else
    bTemp = (bTab[iFilterLen / 2] + bTab[iFilterLen / 2 - 1]) / 2;  // if even then take aveage of two central values
return bTemp;
} //end getmedianNum


// ==========================================================================
// Main setup function
// ==========================================================================

void setup()
{
    // Wait for USB connection to be established by PC
    // NOTE:  Only use this when debugging - if not connected to a PC, this
    // could prevent the script from starting
    #if defined SERIAL_PORT_USBVIRTUAL
      while (!SERIAL_PORT_USBVIRTUAL && (millis() < 10000)){}
    #endif


    // Start the primary serial connection
    Serial.begin(serialBaud);

    // Print a start-up note to the first serial port
    Serial.print(F("Now running "));
    Serial.print(sketchName);
    Serial.print(F(" on Logger "));
    Serial.println(LoggerID);
    Serial.println();

    Serial.print(F("Using ModularSensors Library version "));
    Serial.println(MODULAR_SENSORS_VERSION);
    Serial.print(F("TinyGSM Library version "));
    Serial.println(TINYGSM_VERSION);
    Serial.println();

    // Allow interrupts for software serial
    #if defined SoftwareSerial_ExtInts_h
        enableInterrupt(softSerialRx, SoftwareSerial_ExtInts::handle_interrupt, CHANGE);
    #endif
    #if defined NeoSWSerial_h
        enableInterrupt(neoSSerial1Rx, neoSSerial1ISR, CHANGE);
    #endif

    // Start the serial connection with the modem
    modemSerial.begin(modemBaud);

    // Start the stream for the modbus sensors; all currently supported modbus sensors use 9600 baud
    y511modbusSerial.begin(9600);

    // Set up pins for the LED's
    pinMode(greenLED, OUTPUT);
    digitalWrite(greenLED, LOW);
    pinMode(redLED, OUTPUT);
    digitalWrite(redLED, LOW);
    // Blink the LEDs to show the board is on and starting up
    greenredflash();

    // Set the timezones for the logger/data and the RTC
    // Logging in the given time zone
    Logger::setLoggerTimeZone(timeZone);
    // It is STRONGLY RECOMMENDED that you set the RTC to be in UTC (UTC+0)
    Logger::setRTCTimeZone(0);

    // Attach the modem and information pins to the logger
    dataLogger.attachModem(modem);
    modem.setModemLED(modemLEDPin);
    dataLogger.setLoggerPins(wakePin, sdCardSSPin, sdCardPwrPin, buttonPin, greenLED);

    // Begin the logger
    dataLogger.begin();

    // Note:  Please change these battery voltages to match your battery
    // Set up the sensors, except at lowest battery level
    if (getBatteryVoltage() > 3.4)
    {
        Serial.println(F("Setting up sensors..."));
        varArray.setupSensors();
    }

    // Sync the clock if it isn't valid or we have battery to spare
    if (getBatteryVoltage() > 3.55 || !dataLogger.isRTCSane())
    {
        // Synchronize the RTC with NIST
        // This will also set up the modem
        dataLogger.syncRTC();
    }

    // Create the log file, adding the default header to it
    // Do this last so we have the best chance of getting the time correct and
    // all sensor names correct
    // Writing to the SD card can be power intensive, so if we're skipping
    // the sensor setup we'll skip this too.
    if (getBatteryVoltage() > 3.4)
    {
        Serial.println(F("Setting up file on SD card"));
        dataLogger.turnOnSDcard(true);  // true = wait for card to settle after power up
        dataLogger.createLogFile(true); // true = write a new header
        dataLogger.turnOffSDcard(true); // true = wait for internal housekeeping after write
    }

    // Set up some of the power pins so the board boots up with them off
        // NOTE:  This isn't necessary at all.  The logger begin() function
        // should leave all power pins off when it finishes.
        if (modemVccPin >= 0)
        {
            pinMode(modemVccPin, OUTPUT);
            digitalWrite(modemVccPin, LOW);
            pinMode(modemSleepRqPin, OUTPUT);  // <- Added
            digitalWrite(modemSleepRqPin, HIGH);  // <- Added
        }


    // Call the processor sleep
    Serial.println(F("Putting processor to sleep\n"));
    dataLogger.systemSleep();
}



// ==========================================================================
// Main loop function
// ==========================================================================

/** Start [complex_loop] */
// Use this long loop when you want to do something special
// Because of the way alarms work on the RTC, it will wake the processor and
// start the loop every minute exactly on the minute.
// The processor may also be woken up by another interrupt or level change on a
// pin - from a button or some other input.
// The "if" statements in the loop determine what will happen - whether the
// sensors update, testing mode starts, or it goes back to sleep.
void loop() {
    // Reset the watchdog
    dataLogger.watchDogTimer.resetWatchDog();

    // Assuming we were woken up by the clock, check if the current time is an
    // even interval of the logging interval
    // We're only doing anything at all if the battery is above 3.4V
    if (dataLogger.checkInterval() && getBatteryVoltage() > 3.4) {
      
        // Flag to notify that we're in already awake and logging a point
        Logger::isLoggingNow = true;
        dataLogger.watchDogTimer.resetWatchDog();

        // Print a line to show new reading
        Serial.println(F("------------------------------------------"));
        // Turn on the LED to show we're taking a reading
        dataLogger.alertOn();
        // Power up the SD Card, but skip any waits after power up
        dataLogger.turnOnSDcard(false);
        dataLogger.watchDogTimer.resetWatchDog();

        // Turn on the modem to let it start searching for the network
        // Only turn the modem on if the battery at the last interval was high
        // enough
        // NOTE:  if the modemPowerUp function is not run before the
        // completeUpdate
        // function is run, the modem will not be powered and will not
        // return a signal strength reading.
        if (getBatteryVoltage() > 3.6) modem.modemPowerUp();

        // Start the stream for the modbus sensors, if your RS485 adapter bleeds
        // current from data pins when powered off & you stop modbus serial
        // connection with digitalWrite(5, LOW), below.
        // https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833
        altSoftSerial.begin(9600);

        // Do a complete update on the variable array.
        // This this includes powering all of the sensors, getting updated
        // values, and turing them back off.
        // NOTE:  The wake function for each sensor should force sensor setup
        // to run if the sensor was not previously set up.
        varArray.completeUpdate();

        dataLogger.watchDogTimer.resetWatchDog();

        // Reset modbus serial pins to LOW, if your RS485 adapter bleeds power
        // on sleep, because Modbus Stop bit leaves these pins HIGH.
        // https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833
        digitalWrite(5, LOW);  // Reset AltSoftSerial Tx pin to LOW
        digitalWrite(6, LOW);  // Reset AltSoftSerial Rx pin to LOW

        // Create a csv data record and save it to the log file
        dataLogger.logToSD();
        dataLogger.watchDogTimer.resetWatchDog();

        // Connect to the network
        // Again, we're only doing this if the battery is doing well
        if (getBatteryVoltage() > 3.55) {
        //  Serial.println(F("Trying to connect to internet-------"));
            dataLogger.watchDogTimer.resetWatchDog();
            if (modem.connectInternet()) {
                dataLogger.watchDogTimer.resetWatchDog();
                // Publish data to remotes
                Serial.println(F("Modem connected to internet."));
                dataLogger.publishDataToRemotes();

                // Sync the clock at midnight
                dataLogger.watchDogTimer.resetWatchDog();
                if (Logger::markedEpochTime != 0 &&
                    Logger::markedEpochTime % 86400 == 0) {
                    Serial.println(F("Running a daily clock sync..."));
                    dataLogger.setRTClock(modem.getNISTTime());
                    dataLogger.watchDogTimer.resetWatchDog();
                    modem.updateModemMetadata();
                    dataLogger.watchDogTimer.resetWatchDog();
                }

                // Disconnect from the network
                modem.disconnectInternet();
                dataLogger.watchDogTimer.resetWatchDog();
            }
            // Turn the modem off
            modem.modemSleepPowerDown();
            dataLogger.watchDogTimer.resetWatchDog();
        }

        // Cut power from the SD card - without additional housekeeping wait
        dataLogger.turnOffSDcard(false);
        dataLogger.watchDogTimer.resetWatchDog();
        // Turn off the LED
        dataLogger.alertOff();
        // Print a line to show reading ended
        Serial.println(F("------------------------------------------\n"));

        // Unset flag
        Logger::isLoggingNow = false;
    }

    // Check if it was instead the testing interrupt that woke us up
    if (Logger::startTesting) {
        // Start the stream for the modbus sensors, if your RS485 adapter bleeds
        // current from data pins when powered off & you stop modbus serial
        // connection with digitalWrite(5, LOW), below.
        // https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833
        altSoftSerial.begin(9600);

        dataLogger.testingMode();
    }

    // Reset modbus serial pins to LOW, if your RS485 adapter bleeds power
    // on sleep, because Modbus Stop bit leaves these pins HIGH.
    // https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833
    digitalWrite(5, LOW);  // Reset AltSoftSerial Tx pin to LOW
    digitalWrite(6, LOW);  // Reset AltSoftSerial Rx pin to LOW

    // Call the processor sleep
    dataLogger.systemSleep();
}

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/*****************************************************************************

simple_logging.ino

Written By: Sara Damiano (sdamiano@stroudcenter.org)

Development Environment: PlatformIO

Hardware Platform: EnviroDIY Mayfly Arduino Datalogger

Software License: BSD-3.

and the EnviroDIY Development Team

This sketch is an example of logging data to an SD card

DISCLAIMER:

THIS CODE IS PROVIDED "AS IS" - NO WARRANTY IS GIVEN.

*****************************************************************************/

// ==========================================================================

// Defines for the Arduino IDE

// In PlatformIO, set these build flags in your platformio.ini

// ==========================================================================

#ifndef TINY_GSM_RX_BUFFER

#define TINY_GSM_RX_BUFFER 64

#endif

#ifndef TINY_GSM_YIELD_MS

#define TINY_GSM_YIELD_MS 2

#endif

#ifndef MQTT_MAX_PACKET_SIZE

#define MQTT_MAX_PACKET_SIZE 240

#endif

// ==========================================================================

// Include the base required libraries

// ==========================================================================

#include <Arduino.h> // The base Arduino library

#include <EnableInterrupt.h> // for external and pin change interrupts

#include <LoggerBase.h> // The modular sensors library

//#include <Adafruit_ADS1015.h>

//Adafruit_ADS1115 ads; /* Use this for the Mayfly because of the onboard 16-bit ADS1115 */

//#include <AltSoftSerial.h>

//#include <YosemitechModbus.h>

// ==========================================================================

// Data Logger Settings

// ==========================================================================

// The name of this file

const char *sketchName = "08_Kokako.ino";

// Logger ID, also becomes the prefix for the name of the data file on SD card

const char *LoggerID = "Kokako";

// How frequently (in minutes) to log data

const uint8_t loggingInterval = 2;

// Your logger's timezone.

const int8_t timeZone = 12; // Eastern Standard Time

// NOTE: Daylight savings time will not be applied! Please use standard time!

// ==========================================================================

// Primary Arduino-Based Board and Processor

// ==========================================================================

#include <sensors/ProcessorStats.h>

const long serialBaud = 115200; // Baud rate for the primary serial port for debugging

const int8_t greenLED = 8; // MCU pin for the green LED (-1 if not applicable)

const int8_t redLED = 9; // MCU pin for the red LED (-1 if not applicable)

const int8_t buttonPin = 21; // MCU pin for a button to use to enter debugging mode (-1 if not applicable)

const int8_t wakePin = A7; // MCU interrupt/alarm pin to wake from sleep

// Set the wake pin to -1 if you do not want the main processor to sleep.

// In a SAMD system where you are using the built-in rtc, set wakePin to 1

const int8_t sdCardPwrPin = -1; // MCU SD card power pin (-1 if not applicable)

const int8_t sdCardSSPin = 12; // MCU SD card chip select/slave select pin (must be given!)

const int8_t sensorPowerPin = 22; // MCU pin controlling main sensor power (-1 if not applicable)

// Create the main processor chip "sensor" - for general metadata

const char *mcuBoardVersion = "v0.5b";

ProcessorStats mcuBoard(mcuBoardVersion);

// ==========================================================================

// Wifi/Cellular Modem Settings

// ==========================================================================

// Create a reference to the serial port for the modem

HardwareSerial &modemSerial = Serial1; // Use hardware serial if possible

// Modem Pins - Describe the physical pin connection of your modem to your board

const int8_t modemVccPin = -1; // MCU pin controlling modem power (-1 if not applicable)

//const bool useCTSforStatus = false; // Flag to use the XBee CTS pin for status

const int8_t modemStatusPin = 19; // MCU pin used to read modem status (-1 if not applicable)

const int8_t modemResetPin = 20; // MCU pin connected to modem reset pin (-1 if unconnected)

const int8_t modemSleepRqPin = 23; // MCU pin used for modem sleep/wake request (-1 if not applicable)

const int8_t modemLEDPin = redLED; // MCU pin connected an LED to show modem status (-1 if unconnected)

// // Network connection information

// Network connection information

const char *apn = "m2m"; // The APN for the gprs connection

// const char *wifiId = "Dare_Family"; // The WiFi access point, unnecessary for gprs

// const char *wifiPwd = "119HarveyStreet"; // The password for connecting to WiFi, unnecessary for gprs

// ==========================================================================

// The modem object

// Note: Don't use more than one!

// ==========================================================================

//#elif defined MS_BUILD_TESTING && defined MS_BUILD_TEST_XBEE_LTE_B

// For the u-blox SARA R410M based Digi LTE-M XBee3

// NOTE: According to the manual, this should be less stable than transparent

// mode, but my experience is the complete reverse.

#include <modems/DigiXBeeLTEBypass.h>

//#include <modems/SodaqDigiXBeeLTEBypass.h>

const long modemBaud = 9600; // All XBee's use 9600 by default

const bool useCTSforStatus = false; // Flag to use the XBee CTS pin for status

// NOTE: If possible, use the STATUS/SLEEP_not (XBee pin 13) for status, but

// the CTS pin can also be used if necessary

DigiXBeeLTEBypass modemXBLTEB(&modemSerial,

modemVccPin, modemStatusPin, useCTSforStatus,

modemResetPin, modemSleepRqPin,

apn);

// Create an extra reference to the modem by a generic name (not necessary)

DigiXBeeLTEBypass modem = modemXBLTEB;

// ==========================================================================

// Maxim DS3231 RTC (Real Time Clock)

// ==========================================================================

#include <sensors/MaximDS3231.h> // Includes wrapper functions for Maxim DS3231 RTC

// Create a DS3231 sensor object, using this constructor function:

MaximDS3231 ds3231(1);

// ==========================================================================

// Meter Hydros 21 Conductivity, Temperature, and Depth Sensor

// ==========================================================================

/** Start [hydros21] */

#include <sensors/DecagonCTD.h>

const char* CTDSDI12address = "1"; // The SDI-12 Address of the CTD

const uint8_t CTDNumberReadings = 6; // The number of readings to average

const int8_t CTDPower = sensorPowerPin; // Power pin (-1 if unconnected)

const int8_t CTDData = 11; // The SDI12 data pin

// Create a Decagon CTD sensor object

DecagonCTD ctd(*CTDSDI12address, CTDPower, CTDData, CTDNumberReadings);

// Create conductivity, temperature, and depth variable pointers for the CTD

//Variable* ctdCond = new DecagonCTD_Cond(&ctd,

// "12345678-abcd-1234-ef00-1234567890ab");

//Variable* ctdTemp = new DecagonCTD_Temp(&ctd,

// "12345678-abcd-1234-ef00-1234567890ab");

//Variable* ctdDepth =

// new DecagonCTD_Depth(&ctd, "12345678-abcd-1234-ef00-1234567890ab");

/** End [hydros21] */

// ==========================================================================

// Yosemitech Y511 Turbidity Sensor with Wiper

// ==========================================================================

/** Start [y511] */

#include <sensors/YosemitechY511.h>

#include <AltSoftSerial.h>

AltSoftSerial altSoftSerial;

// Create a reference to the serial port for modbus

// Extra hardware and software serial ports are created in the "Settings for

// Additional Serial Ports" section

#if defined ARDUINO_ARCH_SAMD || defined ATMEGA2560

HardwareSerial& y511modbusSerial = Serial2; // Use hardware serial if possible

#else

AltSoftSerial& y511modbusSerial = altSoftSerial; // For software serial

// NeoSWSerial& y511modbusSerial = neoSSerial1; // For software serial

#endif

byte y511ModbusAddress = 0x01; // The modbus address of the Y511

const int8_t y511AdapterPower =

sensorPowerPin; // RS485 adapter power pin (-1 if unconnected)

const int8_t y511SensorPower = -1; // Sensor power pin

const int8_t y511EnablePin = -1; // Adapter RE/DE pin (-1 if not applicable)

const uint8_t y511NumberReadings = 5;

// The manufacturer recommends averaging 10 readings, but we take 5 to minimize

// power consumption

// Create a Y511-A Turbidity sensor object

YosemitechY511 y511(y511ModbusAddress, y511modbusSerial, y511AdapterPower,

y511SensorPower, y511EnablePin, y511NumberReadings);

// Create turbidity and temperature variable pointers for the Y511

//Variable* y511Turb =

// new YosemitechY511_Turbidity(&y511, "12345678-abcd-1234-ef00-1234567890ab");

//Variable* y511Temp =

// new YosemitechY511_Temp(&y511, "12345678-abcd-1234-ef00-1234567890ab");

/** End [y511] */

// ==========================================================================

// Creating the Variable Array[s] and Filling with Variable Objects

// ==========================================================================

Variable *variableList[] = {

//new ProcessorStats_SampleNumber(&mcuBoard),

//new ProcessorStats_FreeRam(&mcuBoard),

new ProcessorStats_Battery(&mcuBoard,"3cafc793-59d4-4a89-aaa4-f0f55aaa2a43"),

new MaximDS3231_Temp(&ds3231,"85322878-f3c6-4013-bb70-f5d05a2bd3d4"),

new DecagonCTD_Cond(&ctd, "30b1000a-90f3-40e9-8782-0ce03291a89a"),

new DecagonCTD_Temp(&ctd, "4940af20-f35f-4d96-9eb4-09064d1ebf6a"),

new DecagonCTD_Depth(&ctd, "a72b2617-9d34-43e0-8429-17e817a0d686"),

new YosemitechY511_Turbidity(&y511, "6a179ddf-7d16-4b1b-98cd-ab3ed468e70d"),

new YosemitechY511_Temp(&y511, "c01965dd-8952-4e0c-9201-f83fcfdc2bc8")

// Additional sensor variables can be added here, by copying the syntax

// for creating the variable pointer (FORM1) from the <code>menu_a_la_carte.ino</code> example

// The example code snippets in the wiki are primarily FORM2.

};

// Count up the number of pointers in the array

int variableCount = sizeof(variableList) / sizeof(variableList[0]);

// Create the VariableArray object

VariableArray varArray(variableCount, variableList);

// ==========================================================================

// The Logger Object[s]

// ==========================================================================

// Create a logger instance

Logger dataLogger(LoggerID, loggingInterval, &varArray);

// ==========================================================================

// A Publisher to Monitor My Watershed / EnviroDIY Data Sharing Portal

// ==========================================================================

// Device registration and sampling feature information can be obtained after

// registration at https://monitormywatershed.org or https://data.envirodiy.org

const char *registrationToken = "3f8eb19c-11b1-4d81-a80d-e3443728ab03"; // Device registration token

const char *samplingFeature = "89551d76-a825-4357-94f2-23aa82b52cfe"; // Sampling feature UUID

// const char *UUIDs[] = // UUID array for device sensors

// {

// "0bc19c50-67d8-4012-9e17-fb32db82f1ca", // Temperature (Maxim_DS18B20_Temp)

// "846f84dc-4455-47f3-bd38-51a21e20fa50" // Temperature (Maxim_DS3231_Temp)

// };

// Create a data publisher for the EnviroDIY/WikiWatershed POST endpoint

#include <publishers/EnviroDIYPublisher.h>

EnviroDIYPublisher EnviroDIYPOST(dataLogger, &modem.gsmClient, registrationToken, samplingFeature);

// ==========================================================================

// Working Functions

// ==========================================================================

// Flashes the LED's on the primary board

void greenredflash(uint8_t numFlash = 4, uint8_t rate = 75)

{

for (uint8_t i = 0; i < numFlash; i++) {

digitalWrite(greenLED, HIGH);

digitalWrite(redLED, LOW);

delay(rate);

digitalWrite(greenLED, LOW);

digitalWrite(redLED, HIGH);

delay(rate);

}

digitalWrite(redLED, LOW);

}

// Read's the battery voltage

// NOTE: This will actually return the battery level from the previous update!

float getBatteryVoltage()

{

if (mcuBoard.sensorValues[0] == -9999) mcuBoard.update();

return mcuBoard.sensorValues[0];

}

//Median Funtion

// calculate a median for set of values in buffer

int getMedianNum(int bArray[], int iFilterLen)

{ int bTab[iFilterLen];

for (byte i = 0; i<iFilterLen; i++)

bTab[i] = bArray[i]; // copy input array into BTab[] array

int i, j, bTemp;

for (j = 0; j < iFilterLen - 1; j++) // put array in ascending order

{ for (i = 0; i < iFilterLen - j - 1; i++)

{ if (bTab[i] > bTab[i + 1])

{ bTemp = bTab[i];

bTab[i] = bTab[i + 1];

bTab[i + 1] = bTemp;

}

if ((iFilterLen & 1) > 0) // check to see if iFilterlen is odd or even using & (bitwise AND) i.e if length &AND 1 is TRUE (>0)

bTemp = bTab[(iFilterLen - 1) / 2]; // then then it is odd, and should take the central value

else

bTemp = (bTab[iFilterLen / 2] + bTab[iFilterLen / 2 - 1]) / 2; // if even then take aveage of two central values

return bTemp;

} //end getmedianNum

// ==========================================================================

// Main setup function

// ==========================================================================

void setup()

{

// Wait for USB connection to be established by PC

// NOTE: Only use this when debugging - if not connected to a PC, this

// could prevent the script from starting

#if defined SERIAL_PORT_USBVIRTUAL

while (!SERIAL_PORT_USBVIRTUAL && (millis() < 10000)){}

#endif

// Start the primary serial connection

Serial.begin(serialBaud);

// Print a start-up note to the first serial port

Serial.print(F("Now running "));

Serial.print(sketchName);

Serial.print(F(" on Logger "));

Serial.println(LoggerID);

Serial.println();

Serial.print(F("Using ModularSensors Library version "));

Serial.println(MODULAR_SENSORS_VERSION);

Serial.print(F("TinyGSM Library version "));

Serial.println(TINYGSM_VERSION);

Serial.println();

// Allow interrupts for software serial

#if defined SoftwareSerial_ExtInts_h

enableInterrupt(softSerialRx, SoftwareSerial_ExtInts::handle_interrupt, CHANGE);

#endif

#if defined NeoSWSerial_h

enableInterrupt(neoSSerial1Rx, neoSSerial1ISR, CHANGE);

#endif

// Start the serial connection with the modem

modemSerial.begin(modemBaud);

// Start the stream for the modbus sensors; all currently supported modbus sensors use 9600 baud

y511modbusSerial.begin(9600);

// Set up pins for the LED's

pinMode(greenLED, OUTPUT);

digitalWrite(greenLED, LOW);

pinMode(redLED, OUTPUT);

digitalWrite(redLED, LOW);

// Blink the LEDs to show the board is on and starting up

greenredflash();

// Set the timezones for the logger/data and the RTC

// Logging in the given time zone

Logger::setLoggerTimeZone(timeZone);

// It is STRONGLY RECOMMENDED that you set the RTC to be in UTC (UTC+0)

Logger::setRTCTimeZone(0);

// Attach the modem and information pins to the logger

dataLogger.attachModem(modem);

modem.setModemLED(modemLEDPin);

dataLogger.setLoggerPins(wakePin, sdCardSSPin, sdCardPwrPin, buttonPin, greenLED);

// Begin the logger

dataLogger.begin();

// Note: Please change these battery voltages to match your battery

// Set up the sensors, except at lowest battery level

if (getBatteryVoltage() > 3.4)

{

Serial.println(F("Setting up sensors..."));

varArray.setupSensors();

}

// Sync the clock if it isn't valid or we have battery to spare

if (getBatteryVoltage() > 3.55 || !dataLogger.isRTCSane())

{

// Synchronize the RTC with NIST

// This will also set up the modem

dataLogger.syncRTC();

}

// Create the log file, adding the default header to it

// Do this last so we have the best chance of getting the time correct and

// all sensor names correct

// Writing to the SD card can be power intensive, so if we're skipping

// the sensor setup we'll skip this too.

if (getBatteryVoltage() > 3.4)

{

Serial.println(F("Setting up file on SD card"));

dataLogger.turnOnSDcard(true); // true = wait for card to settle after power up

dataLogger.createLogFile(true); // true = write a new header

dataLogger.turnOffSDcard(true); // true = wait for internal housekeeping after write

}

// Set up some of the power pins so the board boots up with them off

// NOTE: This isn't necessary at all. The logger begin() function

// should leave all power pins off when it finishes.

if (modemVccPin >= 0)

{

pinMode(modemVccPin, OUTPUT);

digitalWrite(modemVccPin, LOW);

pinMode(modemSleepRqPin, OUTPUT); // <- Added

digitalWrite(modemSleepRqPin, HIGH); // <- Added

}

// Call the processor sleep

Serial.println(F("Putting processor to sleep\n"));

dataLogger.systemSleep();

}

// ==========================================================================

// Main loop function

// ==========================================================================

/** Start [complex_loop] */

// Use this long loop when you want to do something special

// Because of the way alarms work on the RTC, it will wake the processor and

// start the loop every minute exactly on the minute.

// The processor may also be woken up by another interrupt or level change on a

// pin - from a button or some other input.

// The "if" statements in the loop determine what will happen - whether the

// sensors update, testing mode starts, or it goes back to sleep.

void loop() {

// Reset the watchdog

dataLogger.watchDogTimer.resetWatchDog();

// Assuming we were woken up by the clock, check if the current time is an

// even interval of the logging interval

// We're only doing anything at all if the battery is above 3.4V

if (dataLogger.checkInterval() && getBatteryVoltage() > 3.4) {

// Flag to notify that we're in already awake and logging a point

Logger::isLoggingNow = true;

dataLogger.watchDogTimer.resetWatchDog();

// Print a line to show new reading

Serial.println(F("------------------------------------------"));

// Turn on the LED to show we're taking a reading

dataLogger.alertOn();

// Power up the SD Card, but skip any waits after power up

dataLogger.turnOnSDcard(false);

dataLogger.watchDogTimer.resetWatchDog();

// Turn on the modem to let it start searching for the network

// Only turn the modem on if the battery at the last interval was high

// enough

// NOTE: if the modemPowerUp function is not run before the

// completeUpdate

// function is run, the modem will not be powered and will not

// return a signal strength reading.

if (getBatteryVoltage() > 3.6) modem.modemPowerUp();

// Start the stream for the modbus sensors, if your RS485 adapter bleeds

// current from data pins when powered off & you stop modbus serial

// connection with digitalWrite(5, LOW), below.

// https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833

altSoftSerial.begin(9600);

// Do a complete update on the variable array.

// This this includes powering all of the sensors, getting updated

// values, and turing them back off.

// NOTE: The wake function for each sensor should force sensor setup

// to run if the sensor was not previously set up.

varArray.completeUpdate();

dataLogger.watchDogTimer.resetWatchDog();

// Reset modbus serial pins to LOW, if your RS485 adapter bleeds power

// on sleep, because Modbus Stop bit leaves these pins HIGH.

// https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833

digitalWrite(5, LOW); // Reset AltSoftSerial Tx pin to LOW

digitalWrite(6, LOW); // Reset AltSoftSerial Rx pin to LOW

// Create a csv data record and save it to the log file

dataLogger.logToSD();

dataLogger.watchDogTimer.resetWatchDog();

// Connect to the network

// Again, we're only doing this if the battery is doing well

if (getBatteryVoltage() > 3.55) {

// Serial.println(F("Trying to connect to internet-------"));

dataLogger.watchDogTimer.resetWatchDog();

if (modem.connectInternet()) {

dataLogger.watchDogTimer.resetWatchDog();

// Publish data to remotes

Serial.println(F("Modem connected to internet."));

dataLogger.publishDataToRemotes();

// Sync the clock at midnight

dataLogger.watchDogTimer.resetWatchDog();

if (Logger::markedEpochTime != 0 &&

Logger::markedEpochTime % 86400 == 0) {

Serial.println(F("Running a daily clock sync..."));

dataLogger.setRTClock(modem.getNISTTime());

dataLogger.watchDogTimer.resetWatchDog();

modem.updateModemMetadata();

dataLogger.watchDogTimer.resetWatchDog();

}

// Disconnect from the network

modem.disconnectInternet();

dataLogger.watchDogTimer.resetWatchDog();

}

// Turn the modem off

modem.modemSleepPowerDown();

dataLogger.watchDogTimer.resetWatchDog();

}

// Cut power from the SD card - without additional housekeeping wait

dataLogger.turnOffSDcard(false);

dataLogger.watchDogTimer.resetWatchDog();

// Turn off the LED

dataLogger.alertOff();

// Print a line to show reading ended

Serial.println(F("------------------------------------------\n"));

// Unset flag

Logger::isLoggingNow = false;

}

// Check if it was instead the testing interrupt that woke us up

if (Logger::startTesting) {

// Start the stream for the modbus sensors, if your RS485 adapter bleeds

// current from data pins when powered off & you stop modbus serial

// connection with digitalWrite(5, LOW), below.

// https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833

altSoftSerial.begin(9600);

dataLogger.testingMode();

}

// Reset modbus serial pins to LOW, if your RS485 adapter bleeds power

// on sleep, because Modbus Stop bit leaves these pins HIGH.

// https://github.com/EnviroDIY/ModularSensors/issues/140#issuecomment-389380833

digitalWrite(5, LOW); // Reset AltSoftSerial Tx pin to LOW

digitalWrite(6, LOW); // Reset AltSoftSerial Rx pin to LOW

// Call the processor sleep

dataLogger.systemSleep();

}

More...

2022-01-18 at 3:19 PM #16287
James_NZ
Participant
Okay, after a good night’s sleep I decided to tackle this again and I think I have fixed it. I simply added a line before the internet connection loop:

mo

1

mo

Okay, after a good night’s sleep I decided to tackle this again and I think I have fixed it. I simply added a line before the internet connection loop:

modem.modemWake();

1

modem.modemWake();

It’s now logging to MMW. Please let me know if this is fundamentally wrong or will cause problems in the future.

James

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