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2021-02-15 at 11:08 AM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15147

Sara Damiano

Moderator

Here’s the version without the extra un-needed BME code. I left in all the code for the display.

/*****************************************************************************
Based on logging_to MMW.ino
Adapted by Anthony and Brian
from source 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 example sketch is written for ModularSensors library version 0.23.4

This shows most of the standard functions of the library at once.

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 512
#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 libraries for OLED
// ==========================================================================
#include <SDL_Arduino_SSD1306.h> // Modification of Adafruit_SSD1306 for ESP8266 compatibility

// Create an instance of the OLED display
SDL_Arduino_SSD1306 display(4); // FOR I2C

// ==========================================================================
//    Data Logger Settings
// ==========================================================================
// The library version this example was written for|previously 0.23.11
const char *libraryVersion = "0.25.1";
// The name of this file
const char *sketchName = "WXSTN_Mini_Mobile.ino";
// Logger ID, also becomes the prefix for the name of the data file on SD card
const char *LoggerID = "WX001";
// How frequently (in minutes) to log data
const uint8_t loggingInterval = 15;
// Your logger's timezone.
const int8_t timeZone = -6; // Central 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
// Extra hardware and software serial ports are created in the "Settings for Additional Serial Ports" section
HardwareSerial &modemSerial = Serial1; // Use hardware serial if possible
// AltSoftSerial &modemSerial = altSoftSerial;  // For software serial if needed
// NeoSWSerial &modemSerial = neoSSerial1;  // For software serial if needed

// Modem Pins - Describe the physical pin connection of your modem to your board
const int8_t modemVccPin = -2;     // MCU pin controlling modem power (-1 if not applicable)
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
const char *apn = "hologram"; // The APN for the gprs connection

#if not defined MS_BUILD_TESTING || defined MS_BUILD_TEST_XBEE_CELLULAR
// For any Digi Cellular XBee's
// NOTE:  The u-blox based Digi XBee's (3G global and LTE-M global)
// are more stable used in bypass mode (below)
// The Telit based Digi XBees (LTE Cat1) can only use this mode.
#include <modems/DigiXBeeCellularTransparent.h>
const long modemBaud = 9600;        // All XBee's use 9600 by default
const bool useCTSforStatus = false; // Flag to use the modem 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
DigiXBeeCellularTransparent modemXBCT(&modemSerial,
                                      modemVccPin, modemStatusPin, useCTSforStatus,
                                      modemResetPin, modemSleepRqPin,
                                      apn);
// Create an extra reference to the modem by a generic name (not necessary)
DigiXBeeCellularTransparent modem = modemXBCT;

#endif

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

// Create a DS3231 sensor object
MaximDS3231 ds3231(1);

// ==========================================================================
//    Calculated Variables
// ==========================================================================

// CtoF - example from the internet
float CtoF(float cel)
{
  float fahrenheit = (cel * 1.8) + 32;
  return fahrenheit;
}
// End CtoF - example from internet
// Properties of the calculated temperature variable
const char *TempFVarName = "temperature";
const char *TempFVarUnit = "degreeFahrenheit";
int TempFVarResolution = 2;

// ==========================================================================
//    Bosch BME280 Environmental Sensor (Temperature, Humidity, Pressure)
// ==========================================================================
#include <sensors/BoschBME280.h>

const int8_t I2CPower = sensorPowerPin; // Pin to switch power on and off (-1 if unconnected)
uint8_t BMEi2c_addr = 0x77;
// The BME280 can be addressed either as 0x77 (Adafruit default) or 0x76 (Grove default)
// Either can be physically mofidied for the other address

// Create a Bosch BME280 sensor object
BoschBME280 bme280(I2CPower, BMEi2c_addr);

// Create four variable pointers for the BME280
Variable *bme280Humid = new BoschBME280_Humidity(&bme280, "12345678-abcd-1234-ef00-1234567890ab");
Variable *bme280Temp = new BoschBME280_Temp(&bme280, "12345678-abcd-1234-ef00-1234567890ab");
Variable *bme280Press = new BoschBME280_Pressure(&bme280, "12345678-abcd-1234-ef00-1234567890ab");
Variable *bme280Alt = new BoschBME280_Altitude(&bme280, "12345678-abcd-1234-ef00-1234567890ab");

// Create the function to convert the BME280 celcius to fahrenheit
float calculatebme280TempF(void)
{
  float TempCFromBME280 = bme280Temp->getValue();
  float TempF = CtoF(TempCFromBME280);
  if (TempCFromBME280 == -9999)
  {
    TempF = -9999;
  }
  return TempF;
}
const char *bme280TempFUUID = "12345678-abcd-1234-ef00-1234567890ab";
const char *bme280TempFVarCode = "bme280TempF";
// Create the calculated fahrenheit variable object and return a variable pointer to it
Variable *bme280TempF = new Variable(calculatebme280TempF, TempFVarResolution,
                                     TempFVarName, TempFVarUnit,
                                     bme280TempFVarCode, bme280TempFUUID);

// ==========================================================================
//    Maxim DS18 One Wire Temperature Sensor
// ==========================================================================
#include <sensors/MaximDS18.h>

// OneWire Address [array of 8 hex characters]
// If only using a single sensor on the OneWire bus, you may omit the address
// DeviceAddress OneWireAddress1 = {0x28, 0xFF, 0xBD, 0xBA, 0x81, 0x16, 0x03, 0x0C};
const int8_t OneWirePower = sensorPowerPin; // Pin to switch power on and off (-1 if unconnected)
const int8_t OneWireBus = 7;                // Pin attached to the OneWire Bus (-1 if unconnected) (D24 = A0)

// Create a Maxim DS18 sensor object (use this form for a single sensor on bus with an unknown address)
MaximDS18 ds18(OneWirePower, OneWireBus);

// Create a temperature variable pointer for the DS18
Variable *ds18Temp = new MaximDS18_Temp(&ds18, "12345678-abcd-1234-ef00-1234567890ab");

// Create the function to convert the DS18 celcius to fahrenheit
float calculateds18TempF(void)
{
  float TempCFromMaximDS18 = ds18Temp->getValue();
  float TempF = CtoF(TempCFromMaximDS18);
  if (TempCFromMaximDS18 == -9999)
  {
    TempF = -9999;
  }
  return TempF;
}
// Properties of the calculated temperature variable
const char *ds18TempFUUID = "12345678-abcd-1234-ef00-1234567890ab";
const char *ds18TempFVarCode = "ds18TempF";
// Create the calculated fahrenheit variable object and return a variable pointer to it
Variable *ds18TempF = new Variable(calculateds18TempF, TempFVarResolution,
                                   TempFVarName, TempFVarUnit,
                                   ds18TempFVarCode, ds18TempFUUID);

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

Variable *variableList[] = {
    // new ProcessorStats_SampleNumber(&mcuBoard, "12345678-abcd-1234-ef00-1234567890ab"),
    new ProcessorStats_Battery(&mcuBoard, "b17cb0f2-5538-4790-8641-39f416d185a3"),
    new Modem_RSSI(&modem, "e1788d85-f8ca-451f-af49-5d4068650a04"),
    new Modem_SignalPercent(&modem, "94c67feb-ade1-42eb-aef2-dcb021b85ef4"),
    new MaximDS3231_Temp(&ds3231, "3a304193-2e51-49e8-96a5-41015b445484"),
    ds18Temp,
    ds18TempF,
    bme280Humid,
    bme280Temp,
    bme280TempF,
    bme280Press,
    bme280Alt,
};

// 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 new 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 = "ffb78d86-af9e-426d-ad44-b807f9e0cd4a"; // Device registration token
const char *samplingFeature = "f5290c01-05a9-4047-b096-ca21f21bfbdd";   // Sampling feature UUID

// 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];
}

unsigned long delayTime;

// ==========================================================================
// 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);

  // Turn on switched power (for the display)
  pinMode(I2CPower, OUTPUT);
  digitalWrite(I2CPower, HIGH);

  display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false); // initialize with the I2C addr 0x3C (for the 128x64)

  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.println(F("Mayfly\nBME280\nDEMO..."));
  display.display();

  // 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);

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

  // 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(-6);

  // 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
  // Check that the battery is OK before powering the modem
  if (getBatteryVoltage() > 3.7)
  {
    Serial.println(F("Beginning modem setup"));
    modem.modemPowerUp();
    modem.wake();
    modem.setup();

    // At very good battery voltage, or with suspicious time stamp, sync the clock
    // Note:  Please change these battery voltages to match your battery
    if (getBatteryVoltage() > 3.8 ||
        dataLogger.getNowEpoch() < 1546300800 || /*Before 01/01/2019*/
        dataLogger.getNowEpoch() > 1735689600)   /*After 1/1/2025*/
    {
      // Synchronize the RTC with NIST
      Serial.println(F("Attempting to connect to the internet and synchronize RTC with NIST"));
      if (modem.connectInternet(120000L))
      {
        dataLogger.setRTClock(modem.getNISTTime());
      }
      else
      {
        Serial.println(F("Could not connect to internet for clock sync."));
      }
    }
  }

  // Set up the sensors, except at lowest battery level
  if (getBatteryVoltage() > 3.4)
  {
    Serial.println(F("Setting up sensors..."));
    varArray.setupSensors();
  }

  // Power down the modem
  modem.disconnectInternet();
  modem.modemSleepPowerDown();

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

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

// Use this short loop for simple data logging and sending
void loop()
{
  // Note:  Please change these battery voltages to match your battery
  // At very low battery, just go back to sleep
  if (getBatteryVoltage() < 3.4)
  {
    dataLogger.systemSleep();
  }
  // At moderate voltage, log data but don't send it over the modem
  else if (getBatteryVoltage() < 3.6)
  {
    dataLogger.logData();
  }
  // If the battery is good, send the data to the world
  else
  {
    dataLogger.logDataAndPublish();

    // Turn on switched power (for the display)
    pinMode(I2CPower, OUTPUT);
    digitalWrite(I2CPower, HIGH);

    display.clearDisplay();
    display.setTextSize(1.5);
    display.setTextColor(WHITE);
    display.setCursor(0, 0);
    display.print(F("DS18 T: "));
    display.print(ds18Temp->getValueString());
    display.println(F(" C"));
    display.print(F("DS18 T: "));
    display.print(ds18TempF->getValueString());
    display.println(F(" F"));
    display.println();
    display.print(F("BME T: "));
    display.print(bme280Temp->getValueString());
    display.println(F(" C"));
    display.print(F("BME T: "));
    display.print(bme280TempF->getValueString());
    display.println(F(" F"));
    display.print(F("BME H: "));
    display.print(bme280Humid->getValueString());
    display.println(F(" %"));
    display.print(F("BME E:"));
    display.print(bme280Alt->getValueString());
    display.println(F(" M"));
    display.print(F("BME P: "));
    display.print(bme280Press->getValueString());
    display.println(F(" Pa"));
    display.display();

    PRINTOUT(F("DS18 T:"), ds18Temp->getValueString(), F("°C"));
    PRINTOUT(F("DS18 T:"), ds18TempF->getValueString(), F("°F\n"));
    PRINTOUT(F("BME T:"), bme280Temp->getValueString(), F("°C"));
    PRINTOUT(F("BME T:"), bme280TempF->getValueString(), F("°F"));
    PRINTOUT(F("BME H:"), bme280Humid->getValueString(), F("%"));
    PRINTOUT(F("BME E:"), bme280Alt->getValueString(), F("m"));
    PRINTOUT(F("BME P:"), bme280Press->getValueString(), F("Pa"));
  }
}

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

Based on logging_to MMW.ino

Adapted by Anthony and Brian

from source 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 example sketch is written for ModularSensors library version 0.23.4

This shows most of the standard functions of the library at once.

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 512

#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 libraries for OLED

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

#include <SDL_Arduino_SSD1306.h> // Modification of Adafruit_SSD1306 for ESP8266 compatibility

// Create an instance of the OLED display

SDL_Arduino_SSD1306 display(4); // FOR I2C

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

// Data Logger Settings

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

// The library version this example was written for|previously 0.23.11

const char *libraryVersion = "0.25.1";

// The name of this file

const char *sketchName = "WXSTN_Mini_Mobile.ino";

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

const char *LoggerID = "WX001";

// How frequently (in minutes) to log data

const uint8_t loggingInterval = 15;

// Your logger's timezone.

const int8_t timeZone = -6; // Central 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

// Extra hardware and software serial ports are created in the "Settings for Additional Serial Ports" section

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

// AltSoftSerial &modemSerial = altSoftSerial; // For software serial if needed

// NeoSWSerial &modemSerial = neoSSerial1; // For software serial if needed

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

const int8_t modemVccPin = -2; // MCU pin controlling modem power (-1 if not applicable)

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

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

#if not defined MS_BUILD_TESTING || defined MS_BUILD_TEST_XBEE_CELLULAR

// For any Digi Cellular XBee's

// NOTE: The u-blox based Digi XBee's (3G global and LTE-M global)

// are more stable used in bypass mode (below)

// The Telit based Digi XBees (LTE Cat1) can only use this mode.

#include <modems/DigiXBeeCellularTransparent.h>

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

const bool useCTSforStatus = false; // Flag to use the modem 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

DigiXBeeCellularTransparent modemXBCT(&modemSerial,

modemVccPin, modemStatusPin, useCTSforStatus,

modemResetPin, modemSleepRqPin,

apn);

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

DigiXBeeCellularTransparent modem = modemXBCT;

#endif

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

// Maxim DS3231 RTC (Real Time Clock)

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

#include <sensors/MaximDS3231.h>

// Create a DS3231 sensor object

MaximDS3231 ds3231(1);

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

// Calculated Variables

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

// CtoF - example from the internet

float CtoF(float cel)

{

float fahrenheit = (cel * 1.8) + 32;

return fahrenheit;

}

// End CtoF - example from internet

// Properties of the calculated temperature variable

const char *TempFVarName = "temperature";

const char *TempFVarUnit = "degreeFahrenheit";

int TempFVarResolution = 2;

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

// Bosch BME280 Environmental Sensor (Temperature, Humidity, Pressure)

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

#include <sensors/BoschBME280.h>

const int8_t I2CPower = sensorPowerPin; // Pin to switch power on and off (-1 if unconnected)

uint8_t BMEi2c_addr = 0x77;

// The BME280 can be addressed either as 0x77 (Adafruit default) or 0x76 (Grove default)

// Either can be physically mofidied for the other address

// Create a Bosch BME280 sensor object

BoschBME280 bme280(I2CPower, BMEi2c_addr);

// Create four variable pointers for the BME280

Variable *bme280Humid = new BoschBME280_Humidity(&bme280, "12345678-abcd-1234-ef00-1234567890ab");

Variable *bme280Temp = new BoschBME280_Temp(&bme280, "12345678-abcd-1234-ef00-1234567890ab");

Variable *bme280Press = new BoschBME280_Pressure(&bme280, "12345678-abcd-1234-ef00-1234567890ab");

Variable *bme280Alt = new BoschBME280_Altitude(&bme280, "12345678-abcd-1234-ef00-1234567890ab");

// Create the function to convert the BME280 celcius to fahrenheit

float calculatebme280TempF(void)

{

float TempCFromBME280 = bme280Temp->getValue();

float TempF = CtoF(TempCFromBME280);

if (TempCFromBME280 == -9999)

{

TempF = -9999;

}

return TempF;

}

const char *bme280TempFUUID = "12345678-abcd-1234-ef00-1234567890ab";

const char *bme280TempFVarCode = "bme280TempF";

// Create the calculated fahrenheit variable object and return a variable pointer to it

Variable *bme280TempF = new Variable(calculatebme280TempF, TempFVarResolution,

TempFVarName, TempFVarUnit,

bme280TempFVarCode, bme280TempFUUID);

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

// Maxim DS18 One Wire Temperature Sensor

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

#include <sensors/MaximDS18.h>

// OneWire Address [array of 8 hex characters]

// If only using a single sensor on the OneWire bus, you may omit the address

// DeviceAddress OneWireAddress1 = {0x28, 0xFF, 0xBD, 0xBA, 0x81, 0x16, 0x03, 0x0C};

const int8_t OneWirePower = sensorPowerPin; // Pin to switch power on and off (-1 if unconnected)

const int8_t OneWireBus = 7; // Pin attached to the OneWire Bus (-1 if unconnected) (D24 = A0)

// Create a Maxim DS18 sensor object (use this form for a single sensor on bus with an unknown address)

MaximDS18 ds18(OneWirePower, OneWireBus);

// Create a temperature variable pointer for the DS18

Variable *ds18Temp = new MaximDS18_Temp(&ds18, "12345678-abcd-1234-ef00-1234567890ab");

// Create the function to convert the DS18 celcius to fahrenheit

float calculateds18TempF(void)

{

float TempCFromMaximDS18 = ds18Temp->getValue();

float TempF = CtoF(TempCFromMaximDS18);

if (TempCFromMaximDS18 == -9999)

{

TempF = -9999;

}

return TempF;

}

// Properties of the calculated temperature variable

const char *ds18TempFUUID = "12345678-abcd-1234-ef00-1234567890ab";

const char *ds18TempFVarCode = "ds18TempF";

// Create the calculated fahrenheit variable object and return a variable pointer to it

Variable *ds18TempF = new Variable(calculateds18TempF, TempFVarResolution,

TempFVarName, TempFVarUnit,

ds18TempFVarCode, ds18TempFUUID);

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

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

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

Variable *variableList[] = {

// new ProcessorStats_SampleNumber(&mcuBoard, "12345678-abcd-1234-ef00-1234567890ab"),

new ProcessorStats_Battery(&mcuBoard, "b17cb0f2-5538-4790-8641-39f416d185a3"),

new Modem_RSSI(&modem, "e1788d85-f8ca-451f-af49-5d4068650a04"),

new Modem_SignalPercent(&modem, "94c67feb-ade1-42eb-aef2-dcb021b85ef4"),

new MaximDS3231_Temp(&ds3231, "3a304193-2e51-49e8-96a5-41015b445484"),

ds18Temp,

ds18TempF,

bme280Humid,

bme280Temp,

bme280TempF,

bme280Press,

bme280Alt,

};

// 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 new 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 = "ffb78d86-af9e-426d-ad44-b807f9e0cd4a"; // Device registration token

const char *samplingFeature = "f5290c01-05a9-4047-b096-ca21f21bfbdd"; // Sampling feature UUID

// 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];

}

unsigned long delayTime;

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

// 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);

// Turn on switched power (for the display)

pinMode(I2CPower, OUTPUT);

digitalWrite(I2CPower, HIGH);

display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false); // initialize with the I2C addr 0x3C (for the 128x64)

display.clearDisplay();

display.setTextSize(2);

display.setTextColor(WHITE);

display.setCursor(0, 0);

display.println(F("Mayfly\nBME280\nDEMO..."));

display.display();

// 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);

// Start the serial connection with the modem

modemSerial.begin(modemBaud);

// 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(-6);

// 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

// Check that the battery is OK before powering the modem

if (getBatteryVoltage() > 3.7)

{

Serial.println(F("Beginning modem setup"));

modem.modemPowerUp();

modem.wake();

modem.setup();

// At very good battery voltage, or with suspicious time stamp, sync the clock

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

if (getBatteryVoltage() > 3.8 ||

dataLogger.getNowEpoch() < 1546300800 || /*Before 01/01/2019*/

dataLogger.getNowEpoch() > 1735689600) /*After 1/1/2025*/

{

// Synchronize the RTC with NIST

Serial.println(F("Attempting to connect to the internet and synchronize RTC with NIST"));

if (modem.connectInternet(120000L))

{

dataLogger.setRTClock(modem.getNISTTime());

}

else

{

Serial.println(F("Could not connect to internet for clock sync."));

}

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

if (getBatteryVoltage() > 3.4)

{

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

varArray.setupSensors();

}

// Power down the modem

modem.disconnectInternet();

modem.modemSleepPowerDown();

// 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)

{

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

}

// Call the processor sleep

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

dataLogger.systemSleep();

}

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

// Main loop function

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

// Use this short loop for simple data logging and sending

void loop()

{

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

// At very low battery, just go back to sleep

if (getBatteryVoltage() < 3.4)

{

dataLogger.systemSleep();

}

// At moderate voltage, log data but don't send it over the modem

else if (getBatteryVoltage() < 3.6)

{

dataLogger.logData();

}

// If the battery is good, send the data to the world

else

{

dataLogger.logDataAndPublish();

// Turn on switched power (for the display)

pinMode(I2CPower, OUTPUT);

digitalWrite(I2CPower, HIGH);

display.clearDisplay();

display.setTextSize(1.5);

display.setTextColor(WHITE);

display.setCursor(0, 0);

display.print(F("DS18 T: "));

display.print(ds18Temp->getValueString());

display.println(F(" C"));

display.print(F("DS18 T: "));

display.print(ds18TempF->getValueString());

display.println(F(" F"));

display.println();

display.print(F("BME T: "));

display.print(bme280Temp->getValueString());

display.println(F(" C"));

display.print(F("BME T: "));

display.print(bme280TempF->getValueString());

display.println(F(" F"));

display.print(F("BME H: "));

display.print(bme280Humid->getValueString());

display.println(F(" %"));

display.print(F("BME E:"));

display.print(bme280Alt->getValueString());

display.println(F(" M"));

display.print(F("BME P: "));

display.print(bme280Press->getValueString());

display.println(F(" Pa"));

display.display();

PRINTOUT(F("DS18 T:"), ds18Temp->getValueString(), F("°C"));

PRINTOUT(F("DS18 T:"), ds18TempF->getValueString(), F("°F\n"));

PRINTOUT(F("BME T:"), bme280Temp->getValueString(), F("°C"));

PRINTOUT(F("BME T:"), bme280TempF->getValueString(), F("°F"));

PRINTOUT(F("BME H:"), bme280Humid->getValueString(), F("%"));

PRINTOUT(F("BME E:"), bme280Alt->getValueString(), F("m"));

PRINTOUT(F("BME P:"), bme280Press->getValueString(), F("Pa"));

}

2021-02-12 at 5:43 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15146

Sara Damiano

Moderator

The C-to-F is working for me with this calculation function:

float calculateTempF(void)
{
  float TempCFromMaximDS18_Temp = ds18Temp->getValue();
  float TempF = (TempCFromMaximDS18_Temp)*1.8 + 32;
  if (TempCFromMaximDS18_Temp == -9999)
  {
    TempF = -9999;
  }
  // Serial.print("DS18 Temperature in Celsius:");
  // Serial.println(TempCFromMaximDS18_Temp);
  // Serial.print("DS18 Temperature in Fahrenheit:");
  // Serial.println(TempF);
  return TempF;
}

float calculateTempF(void)

{

float TempCFromMaximDS18_Temp = ds18Temp->getValue();

float TempF = (TempCFromMaximDS18_Temp)*1.8 + 32;

if (TempCFromMaximDS18_Temp == -9999)

{

TempF = -9999;

}

// Serial.print("DS18 Temperature in Celsius:");

// Serial.println(TempCFromMaximDS18_Temp);

// Serial.print("DS18 Temperature in Fahrenheit:");

// Serial.println(TempF);

return TempF;

}

And this variableArray:

Variable *variableList[] = {
    // new ProcessorStats_SampleNumber(&mcuBoard, "12345678-abcd-1234-ef00-1234567890ab"),
    new ProcessorStats_Battery(&mcuBoard, "b17cb0f2-5538-4790-8641-39f416d185a3"),
    new Modem_RSSI(&modem, "e1788d85-f8ca-451f-af49-5d4068650a04"),
    new Modem_SignalPercent(&modem, "94c67feb-ade1-42eb-aef2-dcb021b85ef4"),
    // new MaximDS3231_Temp(&ds3231, "3a304193-2e51-49e8-96a5-41015b445484"),
    // new RainCounterI2C_Tips(&tbi2c, "12345678-abcd-1234-ef00-1234567890ab"),
    ds18Temp,
    CalcTempF,
    bme280Humid,
    bme280Temp,
    bme280Press,
    bme280Alt,
};

Variable *variableList[] = {

// new ProcessorStats_SampleNumber(&mcuBoard, "12345678-abcd-1234-ef00-1234567890ab"),

new ProcessorStats_Battery(&mcuBoard, "b17cb0f2-5538-4790-8641-39f416d185a3"),

new Modem_RSSI(&modem, "e1788d85-f8ca-451f-af49-5d4068650a04"),

new Modem_SignalPercent(&modem, "94c67feb-ade1-42eb-aef2-dcb021b85ef4"),

// new MaximDS3231_Temp(&ds3231, "3a304193-2e51-49e8-96a5-41015b445484"),

// new RainCounterI2C_Tips(&tbi2c, "12345678-abcd-1234-ef00-1234567890ab"),

ds18Temp,

CalcTempF,

bme280Humid,

bme280Temp,

bme280Press,

bme280Alt,

};

But I don’t have a BME280 on my desk so I commented out all of that code to get it to work. I also don’t have a working XBee3 right now, so I couldn’t test with that. I don’t think those would interfere, but I’m just warning you that my testing isn’t exactly what you have.

Are you planning to keep the code for displaying on the little screen? You could simplify your code by removing all of the extra code for the BME280 and then displaying the result of the BME280 by using the variables you created for it for the logger. So, replace display.print("T: "); display.print(sensors.getTempCByIndex(0)); display.println(" C"); with display.print("T: "); display.print(bme280Temp->getValueString()); display.println(" C"); and so forth. If you want, on Monday I can write up a simpler version for you following that model.

2021-02-12 at 1:53 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15143

Sara Damiano

Moderator

Hm. Can you post your current code? I’ll try running it. I have a DS18 here so hopefully once I attach things and start trying to run them whatever issue I’m missing will jump out at me.

2021-02-12 at 1:18 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15141

Sara Damiano

Moderator

You can throw a Serial.println(TempCFromMaxiumDS18_Temp); into the middle of your calculation equation just for testing. I can try testing your code myself later this afternoon.

2021-02-12 at 1:15 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15140

Sara Damiano

Moderator

-17966.20 does seem a little bit cold for most offices. Did you change your variable array so it has the ds18Temp named variable in it instead of the other new variable? If not update step will update that other new variable and not the one that you’re calculating F from, though adding the “true” to the getValue should force it to update anyway. Is the Celsius temperature from the DS18 reasonable?

Using true*1.8+32 will give you 33.8 no matter what happens. In the multiplication “true” is converted to “1” so your equation is just (1*1.8)+32 = 33.8.

2021-02-12 at 12:22 PM in reply to: Announcement: New ModularSensors release v0.28.01 #15137

Sara Damiano

Moderator

Thank you @mbarney! That’s all correct!

And just FYI, prior to version ~5 of PlatformIO, libraries were only updated in the PlatformIO registry when the registry crawler got to it and noticed the change. So sometimes it would be a day or two before you could see the updates using the pio lib update or similar commands. With the current version, I can notify the PIO registry when I put out a new release so the new version should be visible within just a few minutes.

2021-02-12 at 12:07 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15135

Sara Damiano

Moderator

Does that make sense?

So, for example, in line 178 you created a variable for the DS18 (Variable *ds18Temp = new MaximDS18_Temp(&ds18, "12345678-abcd-1234-ef00-1234567890ab");) Since you’ve already done that, down in line 234 instead you can replace new MaximDS18_Temp(&ds18, "12345678-abcd-1234-ef00-1234567890ab"), with just ds18Temp,. And you can do the same with all of the other variables.

2021-02-12 at 12:04 PM in reply to: Calculated Variable Celsius to Fahrenheit DS18 #15134

Sara Damiano

Moderator

In line 237 you don’t need the “new” or anything else with the calcTempF.

Replace new CalcTempF(&ds18, "12345689-abcd-1234-ef00-1234567890ab"), with just CalcTempF,

You’ve already created and named the variable, so you don’t need to re-create it, just reference it. Actually, since you’ve created all your variables with names, you should reference all of them that way instead of creating a second identical one for each of them. So in your variable array, you can replace almost all of the new ... with the names you gave the variables in the sensor blocks. The result will look more like the VariableArray in the data saving example: https://github.com/EnviroDIY/ModularSensors/blob/149bb59cdb34f7d54d26cd4a81b7e7a90eabced8/examples/data_saving/data_saving.ino#L318

2021-02-11 at 2:14 PM in reply to: How to save sketches #15126

Sara Damiano

Moderator

If it’s not going back to 2000, your battery is ok.

Is the board still running the “now” or “adjust” sketch? If so, every time the board re-starts, it will reset to whatever time you told it in that program.

2021-02-11 at 11:58 AM in reply to: How to save sketches #15124

Sara Damiano

Moderator

Do you have a coin battery in the slot? Could that battery be dead? If you don’t have a battery in the coin slot or if it’s dead, then the clock will reset to Jan 1, 2000 every time the board is unplugged from the computer or battery

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