Photon Athletic Performance Sensor

These sensors aim to measure temperature, humidity, and CO2 levels in two separate areas to determine which is better for athletic activity.

IntermediateWork in progress670

Things used in this project

Hardware components

Breadboard (generic)

Jumper wires (generic)

MQ135 Gas Sensor

DHT22 Temperature Sensor

Resistor 10k ohm

Software apps and online services

Particle Build Web IDE

Google Sheets

Hand tools and fabrication machines

Laser cutter (generic)

Story

Ideation

We are using these sensors to determine how the temperature in a gymnasium can affect the athletic performance of individuals in there. To do this, we are using a gas sensor to measure carbon dioxide levels, along with a temperature and humidity sensor. The data will be used to see how the temperature affects the levels of carbon dioxide, which rises during times of athletic activities. For this project, we will be deploying two separate sensors to different gyms.

How it Works

The sensors are identical, both having the same hardware and software, and very similar cases. The gyms are also identical, but one is above room temperature, and the other below. The data they record will be streamed over a Wi-Fi connection to a spreadsheet, which has been programmed to plot down a data point every minute. At the end of the recording, the data can be compared to see which gym ,hot or cold, is best for athletic activities. Please note that although we aimed to collect data for weeks straight, but unforeseen events caused a sensor to shut off for a week straight.

1 / 4 • Calibration Setup

Code

#include <Adafruit_DHT.h>


#define DHTPIN 4            // what pin we're connected to
#define DHTTYPE DHT22       // DHT 22 (AM2302)

DHT dht(DHTPIN, DHTTYPE);

double hum;                 // current hum
double temp;                // current temp
double co2;                 // current co2 lvl

void setup() {
    
    pinMode(A0, INPUT);
    Serial.begin(9600);
    pinMode(DHTPIN, INPUT);
    
    Particle.variable("hum", hum);
    Particle.variable("temp", temp);
    Particle.variable("co2", co2);
}

void loop() {    
    double checkHum = dht.getHumidity();
    double checkTemp = dht.getTempFarenheit();
    double checkCo2 = analogRead(A0);
    
    /*
    if (checkHum > 0 && checkHum < 100)
        hum = checkHum;
        
    if (checkTemp > 32 && checkTemp < 100)
        temp = checkTemp;
    */
    
    Serial.println("Temp: " + String(checkTemp));
    Serial.println("Hum: " + String(checkHum));
    Serial.println("Co2: " + String(checkCo2));
        
    delay(3000);
}

function collectCurrent() {
  "use strict";
  try
  {
    //Replace the device ID below with your Photon's unique device ID
    var deviceID = "200029000347343233323032";
    
    //Replace the access token below with your Photon's unique access token
    var accessToken = "867739e105b7366392f823d16060d57d6a1ab90d";
    
    //Replace the value below with you group ID
    var groupID = 404;
    
    //Replace the room number below with location of the Photon
    var room = 134;
    
    var sheet = SpreadsheetApp.getActiveSheet();

    // Fetch the value of the testValue variable from the Spark Cloud API.
    // The name of your variable in Particle's cloud must match the variable in the URL below.
    var response = UrlFetchApp.fetch("https://api.spark.io/v1/devices/" + deviceID + "/hum?access_token=" + accessToken);

    // Parse the JSON and extract the testValue.
    var jsonResponse = JSON.parse(response.getContentText());
    var hum = jsonResponse.result;

    response = UrlFetchApp.fetch("https://api.spark.io/v1/devices/" + deviceID + "/temp?access_token=" + accessToken);
    jsonResponse = JSON.parse(response.getContentText());
    var temp = jsonResponse.result;    
    
    response = UrlFetchApp.fetch("https://api.spark.io/v1/devices/" + deviceID + "/co2?access_token=" + accessToken);
    jsonResponse = JSON.parse(response.getContentText());
    var co2 = jsonResponse.result;  

    // Create a timestamp.
    var timeStamp = new Date();

    // Append the timestamp and the temperature to the sheet.
    sheet.appendRow([timeStamp, groupID, room, temp, hum, co2]);
  } catch (e)
  {	
    // If something doesn't work, log it, then rethrow the error.
	Logger.log(e.name + ": " + e.message);
	throw (e);
  }
}

Photon Athletic Performance Sensor