[MillerG]

Thanks Hank! You’re right, that was all we needed.

[MillerG]

#include <SPI.h> #include <SD.h> #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2; //Digital pin 12 is the MicroSD slave select pin on the Mayfly #define SD_SS_PIN 12 //The data log file #define FILE_NAME "DataLog5.txt" //Data header (these lines get written to the beginning of a file when it's created) #define LOGGERNAME "Mayfly Writing pressure and temp data to microSD card" #define DATA_HEADER "SampleNumber(time?) , Air presure (kPa), Air Temperature(C)" int sampleinterval = 10; //time between samples, in seconds int samplenum = 1; // declare the variable "samplenum" and start with 1 //THIS NEEDS CHANGING FOR PRESSURE SENSOR int batteryPin = A6; // on the Mayfly board, pin A6 is connected to a resistor divider on the battery input //Define the values that will be read by pressure sensor float airPressureSenseValue; float airTempSenseValue; void setup() { //Initialise the serial connection Serial.begin(9600); delay(3000); mpl115a2.begin(); //Initialise log file setupLogFile(); //Echo the data header to the serial connection Serial.println(DATA_HEADER); } void loop() { String dataRec = createDataRecord(); //Save the data record to the ial connection Serial.println(dataRec); delay(sampleinterval*1000); //multiply by 1000 to convert from milliseconds to seconds } void setupLogFile() { //Initialise the SD card if (!SD.begin(SD_SS_PIN)) { Serial.println("Error: SD card failed to initialise or is missing."); //Hang // while (true); } //Check if the file already exists bool oldFile = SD.exists(FILE_NAME); //Open the file in write mode File logFile = SD.open(FILE_NAME, FILE_WRITE); //Add header information if the file did not already exist if (!oldFile) { logFile.println(LOGGERNAME); logFile.println(DATA_HEADER); } //Close the file to save it logFile.close(); } void logData(String rec) { //Re-open the file File logFile = SD.open(FILE_NAME, FILE_WRITE); //Write the CSV data logFile.println(rec); //Close the file to save it logFile.close(); } String createDataRecord() { //Create a String type data record in csv format //SampleNumber, Air pressure, Air temperature String data = ""; data += samplenum; //creates a string called "data", put in the sample number data += ","; //adds a comma between values airPressureSenseValue = mpl115a2.getPressure(); //assigns pressure to a variable airTempSenseValue = mpl115a2.getTemperature(); //assigns temp to a variable //Write pressure, temp to record data += airPressureSenseValue; data += ","; data += airTempSenseValue; samplenum++; //increment the sample number return data; }

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#include <SPI.h> #include <SD.h> #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2;   //Digital pin 12 is the MicroSD slave select pin on the Mayfly #define SD_SS_PIN 12   //The data log file #define FILE_NAME "DataLog5.txt"   //Data header  (these lines get written to the beginning of a file when it's created) #define LOGGERNAME "Mayfly Writing pressure and temp data to microSD card" #define DATA_HEADER "SampleNumber(time?) , Air presure (kPa), Air Temperature(C)"   int sampleinterval = 10;    //time between samples, in seconds   int samplenum = 1;      // declare the variable "samplenum" and start with 1 //THIS NEEDS CHANGING FOR PRESSURE SENSOR int batteryPin = A6;    // on the Mayfly board, pin A6 is connected to a resistor divider on the battery input   //Define the values that will be read by pressure sensor float airPressureSenseValue; float airTempSenseValue;   void setup() {   //Initialise the serial connection   Serial.begin(9600);     delay(3000);     mpl115a2.begin();   //Initialise log file   setupLogFile();      //Echo the data header to the serial connection   Serial.println(DATA_HEADER);    }   void loop() {   String dataRec = createDataRecord();      //Save the data record to the ial connection   Serial.println(dataRec);      delay(sampleinterval*1000);   //multiply by 1000 to convert from milliseconds to seconds   }     void setupLogFile() {   //Initialise the SD card   if (!SD.begin(SD_SS_PIN))   {     Serial.println("Error: SD card failed to initialise or is missing.");     //Hang   //  while (true);   }      //Check if the file already exists   bool oldFile = SD.exists(FILE_NAME);        //Open the file in write mode   File logFile = SD.open(FILE_NAME, FILE_WRITE);      //Add header information if the file did not already exist   if (!oldFile)   {     logFile.println(LOGGERNAME);     logFile.println(DATA_HEADER);   }      //Close the file to save it logFile.close();   }     void logData(String rec) {   //Re-open the file   File logFile = SD.open(FILE_NAME, FILE_WRITE);      //Write the CSV data   logFile.println(rec);      //Close the file to save it   logFile.close(); }   String createDataRecord() {   //Create a String type data record in csv format   //SampleNumber, Air pressure, Air temperature   String data = "";   data += samplenum;           //creates a string called "data", put in the sample number   data += ",";                 //adds a comma between values   airPressureSenseValue = mpl115a2.getPressure();  //assigns pressure to a variable   airTempSenseValue =  mpl115a2.getTemperature();    //assigns temp to a variable       //Write pressure, temp to record        data += airPressureSenseValue;    data += ",";    data += airTempSenseValue;   samplenum++;   //increment the sample number   return data; }

This is our current sketch. It will produce the data into the serial monitor. It will also record the header to the SD but not any of the readings from the sensors. Can anybody see any errors in the sketch or know why we can record the header but not the readings?

Thanks

[MillerG]

Anthony,

The first code complied just fine. I will try and upload it to the Mayfly later and let you know how it goes. Thanks!

[MillerG]

I don’t get an error code from the sketch. The sketch will upload and show data in the serial monitor. But, it will not log the data onto an SD card, which is my goal.

[MillerG]

Aq_Bar_Press_NoSD.ino

Arduino

#include <Wire.h> #include <SparkFun_MS5803_I2C.h> #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2; #include <Wire.h> #include "Sodaq_DS3231.h" char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; //year, month, date, hour, min, sec and week-day(starts from 0 and goes to 6) //writing any non-existent time-data may interfere with normal operation of the RTC. //Take care of week-day also. DateTime dt(2017, 04, 24, 15, 04, 0, 1); // Begin class with selected address // available addresses (selected by jumper on board) // default is ADDRESS_HIGH // ADDRESS_HIGH = 0x76 // ADDRESS_LOW = 0x77 MS5803 sensor(ADDRESS_HIGH); //Create variables to store results float temperature_c, temperature_f; double pressure_abs, pressure_relative, altitude_delta, pressure_baseline; // Create Variable to store altitude in (m) for calculations; double base_altitude = 1655.0; // Altitude of SparkFun's HQ in Boulder, CO. in (m) void setup() { Serial.begin(9600); Wire.begin(); rtc.begin(); rtc.setDateTime(dt); //Adjust date-time as defined 'dt' above Serial.begin(9600); //Retrieve calibration constants for conversion math. sensor.reset(); sensor.begin(); pressure_baseline = sensor.getPressure(ADC_4096); Serial.begin(9600); Serial.println("Hello!"); Serial.println("Getting barometric pressure ..."); mpl115a2.begin(); } void loop() { DateTime now = rtc.now(); //get the current date-time Serial.print(now.year(), DEC); Serial.print('/'); Serial.print(now.month(), DEC); Serial.print('/'); Serial.print(now.date(), DEC); Serial.print(' '); Serial.print(now.hour(), DEC); Serial.print(':'); Serial.print(now.minute(), DEC); Serial.print(':'); Serial.print(now.second(), DEC); Serial.println(); Serial.print(weekDay[now.dayOfWeek()]); Serial.println(); // To measure to higher degrees of precision use the following sensor settings: // ADC_256 // ADC_512 // ADC_1024 // ADC_2048 // ADC_4096 // Read temperature from the sensor in deg C. This operation takes about temperature_c = sensor.getTemperature(CELSIUS, ADC_512); // Read temperature from the sensor in deg F. Converting // to Fahrenheit is not internal to the sensor. // Additional math is done to convert a Celsius reading. temperature_f = sensor.getTemperature(FAHRENHEIT, ADC_512); // Read pressure from the sensor in mbar. pressure_abs = sensor.getPressure(ADC_4096); // Report values via UART Serial.print("Temperature C = "); Serial.println(temperature_c); Serial.print("Temperature F = "); Serial.println(temperature_f); Serial.print("Water Pressure abs (mbar)= "); Serial.println(pressure_abs); float pressureKPA = 0, temperatureC = 0; pressureKPA = mpl115a2.getPressure(); Serial.print("Atmospheric Pressure (kPa): "); Serial.print(pressureKPA, 4); Serial.println(" kPa"); delay(10000); }

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#include <Wire.h> #include <SparkFun_MS5803_I2C.h>   #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2;   #include <Wire.h> #include "Sodaq_DS3231.h"   char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };   //year, month, date, hour, min, sec and week-day(starts from 0 and goes to 6) //writing any non-existent time-data may interfere with normal operation of the RTC. //Take care of week-day also. DateTime dt(2017, 04, 24, 15, 04, 0, 1);     // Begin class with selected address // available addresses (selected by jumper on board) // default is ADDRESS_HIGH   //  ADDRESS_HIGH = 0x76 //  ADDRESS_LOW  = 0x77   MS5803 sensor(ADDRESS_HIGH);   //Create variables to store results float temperature_c, temperature_f; double pressure_abs, pressure_relative, altitude_delta, pressure_baseline;   // Create Variable to store altitude in (m) for calculations; double base_altitude = 1655.0; // Altitude of SparkFun's HQ in Boulder, CO. in (m)   void setup() {     Serial.begin(9600);     Wire.begin();     rtc.begin();     rtc.setDateTime(dt); //Adjust date-time as defined 'dt' above          Serial.begin(9600);     //Retrieve calibration constants for conversion math.     sensor.reset();     sensor.begin();          pressure_baseline = sensor.getPressure(ADC_4096);          Serial.begin(9600);   Serial.println("Hello!");      Serial.println("Getting barometric pressure ...");   mpl115a2.begin();     }     void loop() {        DateTime now = rtc.now(); //get the current date-time     Serial.print(now.year(), DEC);     Serial.print('/');     Serial.print(now.month(), DEC);     Serial.print('/');     Serial.print(now.date(), DEC);     Serial.print(' ');     Serial.print(now.hour(), DEC);     Serial.print(':');     Serial.print(now.minute(), DEC);     Serial.print(':');     Serial.print(now.second(), DEC);     Serial.println();     Serial.print(weekDay[now.dayOfWeek()]);     Serial.println();      // To measure to higher degrees of precision use the following sensor settings:   // ADC_256   // ADC_512   // ADC_1024   // ADC_2048   // ADC_4096        // Read temperature from the sensor in deg C. This operation takes about   temperature_c = sensor.getTemperature(CELSIUS, ADC_512);      // Read temperature from the sensor in deg F. Converting   // to Fahrenheit is not internal to the sensor.   // Additional math is done to convert a Celsius reading.   temperature_f = sensor.getTemperature(FAHRENHEIT, ADC_512);      // Read pressure from the sensor in mbar.   pressure_abs = sensor.getPressure(ADC_4096);      // Report values via UART   Serial.print("Temperature C = ");   Serial.println(temperature_c);      Serial.print("Temperature F = ");   Serial.println(temperature_f);      Serial.print("Water Pressure abs (mbar)= ");   Serial.println(pressure_abs);     float pressureKPA = 0, temperatureC = 0;         pressureKPA = mpl115a2.getPressure();     Serial.print("Atmospheric Pressure (kPa): "); Serial.print(pressureKPA, 4); Serial.println(" kPa");     delay(10000); }

[MillerG]

Anthony,

I have run that Sample Code but do not have success when I try to merge it in with my code.

This is my current code:

Aq_Bar_Pressure.ino

Arduino

#include <Wire.h> #include <SparkFun_MS5803_I2C.h> #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2; #include <Wire.h> #include "Sodaq_DS3231.h" char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; //year, month, date, hour, min, sec and week-day(starts from 0 and goes to 6) //writing any non-existent time-data may interfere with normal operation of the RTC. //Take care of week-day also. DateTime dt(2017, 04, 24, 15, 04, 0, 1); // Begin class with selected address // available addresses (selected by jumper on board) // default is ADDRESS_HIGH // ADDRESS_HIGH = 0x76 // ADDRESS_LOW = 0x77 MS5803 sensor(ADDRESS_HIGH); //Create variables to store results float temperature_c, temperature_f; double pressure_abs, pressure_relative, altitude_delta, pressure_baseline; // Create Variable to store altitude in (m) for calculations; double base_altitude = 1655.0; // Altitude of SparkFun's HQ in Boulder, CO. in (m) /* * Simple data logger. */ #include <SPI.h> #include "SdFat.h" // SD chip select pin. Be sure to disable any other SPI devices such as Enet. const uint8_t chipSelect = SS; // Interval between data records in milliseconds. // The interval must be greater than the maximum SD write latency plus the // time to acquire and write data to the SD to avoid overrun errors. // Run the bench example to check the quality of your SD card. const uint32_t SAMPLE_INTERVAL_MS = 1000; // Log file base name. Must be six characters or less. #define FILE_BASE_NAME "Data" //------------------------------------------------------------------------------ // File system object. SdFat sd; // Log file. SdFile file; // Time in micros for next data record. uint32_t logTime; //============================================================================== // User functions. Edit writeHeader() and logData() for your requirements. const uint8_t ANALOG_COUNT = 4; //------------------------------------------------------------------------------ // Write data header. void writeHeader() { file.print(F("micros")); for (uint8_t i = 0; i < ANALOG_COUNT; i++) { file.print(F(",adc")); file.print(i, DEC); } file.println(); } //------------------------------------------------------------------------------ // Log a data record. void logData() { uint16_t data[ANALOG_COUNT]; // Read all channels to avoid SD write latency between readings. for (uint8_t i = 0; i < ANALOG_COUNT; i++) { data[i] = analogRead(i); } // Write data to file. Start with log time in micros. file.print(logTime); // Write ADC data to CSV record. for (uint8_t i = 0; i < ANALOG_COUNT; i++) { file.write(','); file.print(data[i]); } file.println(); } //============================================================================== // Error messages stored in flash. #define error(msg) sd.errorHalt(F(msg)) //------------------------------------------------------------------------------ void setup() { const uint8_t BASE_NAME_SIZE = sizeof(FILE_BASE_NAME) - 1; char fileName[13] = FILE_BASE_NAME "00.csv"; Serial.begin(9600); // Wait for USB Serial while (!Serial) { SysCall::yield(); } delay(1000); Serial.println(F("Type any character to start")); while (!Serial.available()) { SysCall::yield(); } // Initialize the SD card at SPI_HALF_SPEED to avoid bus errors with // breadboards. use SPI_FULL_SPEED for better performance. if (!sd.begin(chipSelect, SPI_HALF_SPEED)) { sd.initErrorHalt(); } // Find an unused file name. if (BASE_NAME_SIZE > 6) { error("FILE_BASE_NAME too long"); } while (sd.exists(fileName)) { if (fileName[BASE_NAME_SIZE + 1] != '9') { fileName[BASE_NAME_SIZE + 1]++; } else if (fileName[BASE_NAME_SIZE] != '9') { fileName[BASE_NAME_SIZE + 1] = '0'; fileName[BASE_NAME_SIZE]++; } else { error("Can't create file name"); } } if (!file.open(fileName, O_CREAT | O_WRITE | O_EXCL)) { error("file.open"); } // Read any Serial data. do { delay(10); } while (Serial.available() && Serial.read() >= 0); Serial.print(F("Logging to: ")); Serial.println(fileName); Serial.println(F("Type any character to stop")); // Write data header. writeHeader(); // Start on a multiple of the sample interval. logTime = micros()/(1000UL*SAMPLE_INTERVAL_MS) + 1; logTime *= 1000UL*SAMPLE_INTERVAL_MS; Serial.begin(9600); Wire.begin(); rtc.begin(); rtc.setDateTime(dt); //Adjust date-time as defined 'dt' above Serial.begin(9600); //Retrieve calibration constants for conversion math. sensor.reset(); sensor.begin(); pressure_baseline = sensor.getPressure(ADC_4096); Serial.begin(9600); Serial.println("Hello!"); Serial.println("Getting barometric pressure ..."); mpl115a2.begin(); } void loop() { // Time for next record. logTime += 1000UL*SAMPLE_INTERVAL_MS; // Wait for log time. int32_t diff; do { diff = micros() - logTime; } while (diff < 0); // Check for data rate too high. if (diff > 10) { error("Missed data record"); } logData(); // Force data to SD and update the directory entry to avoid data loss. if (!file.sync() || file.getWriteError()) { error("write error"); } if (Serial.available()) { // Close file and stop. file.close(); Serial.println(F("Done")); SysCall::halt(); } DateTime now = rtc.now(); //get the current date-time Serial.print(now.year(), DEC); Serial.print('/'); Serial.print(now.month(), DEC); Serial.print('/'); Serial.print(now.date(), DEC); Serial.print(' '); Serial.print(now.hour(), DEC); Serial.print(':'); Serial.print(now.minute(), DEC); Serial.print(':'); Serial.print(now.second(), DEC); Serial.println(); Serial.print(weekDay[now.dayOfWeek()]); Serial.println(); // To measure to higher degrees of precision use the following sensor settings: // ADC_256 // ADC_512 // ADC_1024 // ADC_2048 // ADC_4096 // Read temperature from the sensor in deg C. This operation takes about temperature_c = sensor.getTemperature(CELSIUS, ADC_512); // Read temperature from the sensor in deg F. Converting // to Fahrenheit is not internal to the sensor. // Additional math is done to convert a Celsius reading. temperature_f = sensor.getTemperature(FAHRENHEIT, ADC_512); // Read pressure from the sensor in mbar. pressure_abs = sensor.getPressure(ADC_4096); // Report values via UART Serial.print("Temperature C = "); Serial.println(temperature_c); Serial.print("Temperature F = "); Serial.println(temperature_f); Serial.print("Water Pressure abs (mbar)= "); Serial.println(pressure_abs); float pressureKPA = 0, temperatureC = 0; pressureKPA = mpl115a2.getPressure(); Serial.print("Atmospheric Pressure (kPa): "); Serial.print(pressureKPA, 4); Serial.println(" kPa"); delay(10000); }

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#include <Wire.h> #include <SparkFun_MS5803_I2C.h>   #include <Wire.h> #include <Adafruit_MPL115A2.h> Adafruit_MPL115A2 mpl115a2;   #include <Wire.h> #include "Sodaq_DS3231.h"   char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };   //year, month, date, hour, min, sec and week-day(starts from 0 and goes to 6) //writing any non-existent time-data may interfere with normal operation of the RTC. //Take care of week-day also. DateTime dt(2017, 04, 24, 15, 04, 0, 1);     // Begin class with selected address // available addresses (selected by jumper on board) // default is ADDRESS_HIGH   //  ADDRESS_HIGH = 0x76 //  ADDRESS_LOW  = 0x77   MS5803 sensor(ADDRESS_HIGH);   //Create variables to store results float temperature_c, temperature_f; double pressure_abs, pressure_relative, altitude_delta, pressure_baseline;   // Create Variable to store altitude in (m) for calculations; double base_altitude = 1655.0; // Altitude of SparkFun's HQ in Boulder, CO. in (m)   /* * Simple data logger. */ #include <SPI.h> #include "SdFat.h"   // SD chip select pin.  Be sure to disable any other SPI devices such as Enet. const uint8_t chipSelect = SS;   // Interval between data records in milliseconds. // The interval must be greater than the maximum SD write latency plus the // time to acquire and write data to the SD to avoid overrun errors. // Run the bench example to check the quality of your SD card. const uint32_t SAMPLE_INTERVAL_MS = 1000;   // Log file base name.  Must be six characters or less. #define FILE_BASE_NAME "Data" //------------------------------------------------------------------------------ // File system object. SdFat sd;   // Log file. SdFile file;   // Time in micros for next data record. uint32_t logTime;   //============================================================================== // User functions.  Edit writeHeader() and logData() for your requirements.   const uint8_t ANALOG_COUNT = 4; //------------------------------------------------------------------------------ // Write data header. void writeHeader() {   file.print(F("micros"));   for (uint8_t i = 0; i < ANALOG_COUNT; i++) {     file.print(F(",adc"));     file.print(i, DEC);   }   file.println(); } //------------------------------------------------------------------------------ // Log a data record. void logData() {   uint16_t data[ANALOG_COUNT];     // Read all channels to avoid SD write latency between readings.   for (uint8_t i = 0; i < ANALOG_COUNT; i++) {     data[i] = analogRead(i);   }   // Write data to file.  Start with log time in micros.   file.print(logTime);     // Write ADC data to CSV record.   for (uint8_t i = 0; i < ANALOG_COUNT; i++) {     file.write(',');     file.print(data[i]);   }   file.println(); } //============================================================================== // Error messages stored in flash. #define error(msg) sd.errorHalt(F(msg)) //------------------------------------------------------------------------------   void setup() { const uint8_t BASE_NAME_SIZE = sizeof(FILE_BASE_NAME) - 1;   char fileName[13] = FILE_BASE_NAME "00.csv";     Serial.begin(9600);      // Wait for USB Serial   while (!Serial) {     SysCall::yield();   }   delay(1000);     Serial.println(F("Type any character to start"));   while (!Serial.available()) {     SysCall::yield();   }      // Initialize the SD card at SPI_HALF_SPEED to avoid bus errors with   // breadboards.  use SPI_FULL_SPEED for better performance.   if (!sd.begin(chipSelect, SPI_HALF_SPEED)) {     sd.initErrorHalt();   }     // Find an unused file name.   if (BASE_NAME_SIZE > 6) {     error("FILE_BASE_NAME too long");   }   while (sd.exists(fileName)) {     if (fileName[BASE_NAME_SIZE + 1] != '9') {       fileName[BASE_NAME_SIZE + 1]++;     } else if (fileName[BASE_NAME_SIZE] != '9') {       fileName[BASE_NAME_SIZE + 1] = '0';       fileName[BASE_NAME_SIZE]++;     } else {       error("Can't create file name");     }   }   if (!file.open(fileName, O_CREAT | O_WRITE | O_EXCL)) {     error("file.open");   }   // Read any Serial data.   do {     delay(10);   } while (Serial.available() && Serial.read() >= 0);     Serial.print(F("Logging to: "));   Serial.println(fileName);   Serial.println(F("Type any character to stop"));     // Write data header.   writeHeader();     // Start on a multiple of the sample interval.   logTime = micros()/(1000UL*SAMPLE_INTERVAL_MS) + 1;   logTime *= 1000UL*SAMPLE_INTERVAL_MS;     Serial.begin(9600);     Wire.begin();     rtc.begin();     rtc.setDateTime(dt); //Adjust date-time as defined 'dt' above          Serial.begin(9600);     //Retrieve calibration constants for conversion math.     sensor.reset();     sensor.begin();          pressure_baseline = sensor.getPressure(ADC_4096);          Serial.begin(9600);   Serial.println("Hello!");      Serial.println("Getting barometric pressure ...");   mpl115a2.begin();     }     void loop() {   // Time for next record.   logTime += 1000UL*SAMPLE_INTERVAL_MS;     // Wait for log time.   int32_t diff;   do {     diff = micros() - logTime;   } while (diff < 0);     // Check for data rate too high.   if (diff > 10) {     error("Missed data record");   }     logData();     // Force data to SD and update the directory entry to avoid data loss.   if (!file.sync() || file.getWriteError()) {     error("write error");   }     if (Serial.available()) {     // Close file and stop.     file.close();     Serial.println(F("Done"));     SysCall::halt();   }       DateTime now = rtc.now(); //get the current date-time     Serial.print(now.year(), DEC);     Serial.print('/');     Serial.print(now.month(), DEC);     Serial.print('/');     Serial.print(now.date(), DEC);     Serial.print(' ');     Serial.print(now.hour(), DEC);     Serial.print(':');     Serial.print(now.minute(), DEC);     Serial.print(':');     Serial.print(now.second(), DEC);     Serial.println();     Serial.print(weekDay[now.dayOfWeek()]);     Serial.println();      // To measure to higher degrees of precision use the following sensor settings:   // ADC_256   // ADC_512   // ADC_1024   // ADC_2048   // ADC_4096        // Read temperature from the sensor in deg C. This operation takes about   temperature_c = sensor.getTemperature(CELSIUS, ADC_512);      // Read temperature from the sensor in deg F. Converting   // to Fahrenheit is not internal to the sensor.   // Additional math is done to convert a Celsius reading.   temperature_f = sensor.getTemperature(FAHRENHEIT, ADC_512);      // Read pressure from the sensor in mbar.   pressure_abs = sensor.getPressure(ADC_4096);      // Report values via UART   Serial.print("Temperature C = ");   Serial.println(temperature_c);      Serial.print("Temperature F = ");   Serial.println(temperature_f);      Serial.print("Water Pressure abs (mbar)= ");   Serial.println(pressure_abs);     float pressureKPA = 0, temperatureC = 0;         pressureKPA = mpl115a2.getPressure();     Serial.print("Atmospheric Pressure (kPa): "); Serial.print(pressureKPA, 4); Serial.println(" kPa");     delay(10000); }

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