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final/final.ino

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+/*
+ * Project Sunride's UKSEDS 2021 team Avionics .
+ * An Arduino Nano 33 BLE Sense is used to record temperature, pressure, air quality, and the velocity and acceleration of the rocket itself.
+ * This data is then stored on an SD Card using the adafruit MicroSD Breakout board.
+ * The pinout of the BLE Sense can be found here: https://content.arduino.cc/assets/Pinout-NANOsense_latest.pdf
+ * A link to a tutorial for the SD card board can be found here: https://learn.adafruit.com/adafruit-micro-sd-breakout-board-card-tutorial?view=all
+ * Created by :
+ * Date: 2021
+*/
+//////////////////////////////////////////////////////////////
+//libraries
+#include <Arduino_LSM9DS1.h>// Library for gyroscope
+#include <Arduino_LPS22HB.h>// Library for barometer
+#include <Arduino_HTS221.h>//Library for the temperature and humidity
+#include <SPI.h>
+#include <SdFat.h>//Same as SD.h but allows longer file names
+///////////////////////////////////////////////
+//definitions
+#define baseName "LaunchData"
+#define GPSSerial Serial1
+#define sensorPin A0
+////////////////////////////////////////////////////////////
+//variable declaration
+const int CSPin = 4;
+const int baseNameSize = sizeof(baseName) - 1;
+char fileName[] = baseName "00.txt";
+unsigned long t;
+unsigned long Previous_time = 0;
+float temperature;
+float humidity;
+char c;
+////////////////////////////////////////////////////////
+//create Sdfat object: SD
+SdFat SD;
+
+void setup() {
+
+  pinMode(LED_BUILTIN, OUTPUT);
+  Serial.begin(9600);
+    // wait for hardware serial to appear
+
+  GPSSerial.begin(9600);
+
+  if (!SD.begin(CSPin)) {// check if it initializes. 
+    Serial.println("Initialization failed/card not present");
+    while (1){
+      error(2);
+    }
+  }
+  while (SD.exists(fileName)) {//create the first file
+    if (fileName[baseNameSize + 1] != '9') {
+      fileName[baseNameSize + 1]++;
+    } else if (fileName[baseNameSize] != '9') {
+      fileName[baseNameSize + 1] = '0';
+      fileName[baseNameSize]++;
+    } else {
+      Serial.println("Can't create file name");
+      error(3);
+      return;
+    }
+  }
+
+  Serial.println("Card initialized");
+  Serial.print("Created: ");
+  Serial.println(fileName);
+  Serial.println("");
+}
+
+void loop() {
+
+
+  String data = "";// variable to put the string data in 
+  //Add the other data here and add to data string
+
+
+
+  float x, y, z;
+  // read the sensor values and put them into a float variable
+    float pressure = BARO.readPressure();
+    float temperature = HTS.readTemperature();
+    float humidity = HTS.readHumidity();
+  //if the accelerometer is getting a reading, then read, put into variables and print the variables
+    if (IMU.accelerationAvailable()) {
+      IMU.readAcceleration(x, y, z);
+      Serial.print(x);
+      Serial.print('\t');
+      Serial.print(y);
+      Serial.print('\t');
+      Serial.println(z);
+    }
+    //Detect launch with acceleration  !!!!!!!Don't know if this should go in void loop!!!!!
+    // accelMag = sqrt(x^2 + y^2 + z^2)//Magnitude of the acceleration
+    //if (accelMag > 5) {//If the acceleration is higher than 5gs then start the recording of the data.
+    //start recording
+    //need to make it so that the acceleration is high for like 500ms before recording starts
+    //Would it be possible to also save the data for the 20 or so seconds before the launch?
+    //}
+
+  //C02 and N02 Sensor, Ashley's code for MQ135
+    int gasReading = analogRead(sensorPin); //gas sensor reading
+
+  t = millis();// function to store time since device was reset
+  data += String(t) + ", " ;
+
+  if (millis() - Previous_time >= 30000) {// create a new file every 30 seconds
+    Previous_time = millis();
+    while (SD.exists(fileName)) {
+    if (fileName[baseNameSize + 1] != '9') {
+      fileName[baseNameSize + 1]++;
+    } else if (fileName[baseNameSize] != '9') {
+      fileName[baseNameSize + 1] = '0';
+      fileName[baseNameSize]++;
+    } else {
+      Serial.println("Can't create file name");//throw error if file can't be created.
+      error(4);
+      return;
+    }
+  }
+}
+
+  if (Serial.available()) {
+    char c = Serial.read();
+    GPSSerial.write(c);
+  }
+  if (GPSSerial.available()) {
+    char c = GPSSerial.read();
+    Serial.write(c);
+  }
+  data += String(t) + ", " + String(temperature) + ", " + String(humidity)+ ", " + String(pressure)+", " + String(gasReading)+", "+c;
+  File dataFile = SD.open(fileName, FILE_WRITE);// open the file to write to it
+  if (dataFile) {
+    dataFile.println(data);//print the data variable onto the file
+    dataFile.close();// close the file
+    //Serial.println(data);
+  }
+  else {
+    //Serial.print("Error opening ");
+    //Serial.println(fileName);
+    error(5);
+  }
+}
+
+// function that flashes onboard led a times so that we can detect where and what the error is.
+void error(int a){
+  for(int j=1;j<a;j++){
+  digitalWrite(LED_BUILTIN,HIGH);
+  delay(1000);
+  digitalWrite(LED_BUILTIN,LOW);
+  delay(500);  
+  j++;
+  }
+}