ScholAir - Space Apps Challenge

ScholAir| Purify the Air Supply

Team Updates

	// Use this file to store all of the private credentials
	// and connection details

	#defineSECRET_SSID "MySSID"// replace MySSID with your WiFi network name
	#defineSECRET_PASS "MyPassword"// replace MyPassword with your WiFi password

	#defineSECRET_CH_ID 0000000// replace 0000000 with your channel number
	#defineSECRET_WRITE_APIKEY "XYZ"// replace XYZ with your channel write API Key

view raw secrets.h hosted with ❤ by GitHub

	/*
	Code to read CO2, temperature and humidity, using MQ and DHT-11 sensors controlled by
	an ESP32 micro-controller
	*/

	#include"ThingSpeak.h"
	#include"secrets.h"
	#include<WiFi.h>
	#include<Adafruit_Sensor.h>
	#include<DHT.h>
	#include<Wire.h>
	#include<Adafruit_GFX.h>
	#include<Adafruit_SSD1306.h>

	// Wi-Fi defitions
	char ssid[] = SECRET_SSID; // network SSID
	char pass[] = SECRET_PASS; // network password
	int keyIndex = 0; // network key Index number (needed only for WEP)
	WiFiClient client;

	// Thing Speak definitions
	unsignedlong myChannelNumber = SECRET_CH_ID;
	constchar * myWriteAPIKey = SECRET_WRITE_APIKEY;

	// Display OLED
	Adafruit_SSD1306 display(128, 64, &Wire, 4);

	// DHT11 definitions
	#defineDHTPIN13
	#defineDHTTYPE DHT11 // define o tipo de sensor, no caso DHT11
	DHT dht(DHTPIN, DHTTYPE);
	float humidity;
	float temperature;

	// CO2 definitions
	#defineMQ_analog2// MQ analog PIN
	#defineMQ_dig7// MQ digital PIN
	long co2;

	// LED pin
	constint LED = 12;

	voidsetup() {
	Serial.begin(115200); // Monitor serial initialization
	Serial.println("Beginning...");
	pinMode(LED, OUTPUT);
	WiFi.mode(WIFI_STA); // Set Wi-Fi mode as station
	ThingSpeak.begin(client); // ThingSpeak initialization
	dht.begin(); // DHT-11 initialization
	pinMode(MQ_analog, INPUT);
	pinMode(MQ_dig, INPUT);
	// Display initialization and configuration
	display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
	display.setTextSize(2);
	display.setTextColor(WHITE);
	display.setTextWrap(false);
	}

	voidloop() {
	// Connect or reconnect to WiFi
	if(WiFi.status() != WL_CONNECTED){
	Serial.print("Trying to connect: ");
	Serial.println(SECRET_SSID);
	while(WiFi.status() != WL_CONNECTED){
	WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network. Change this line if using open or WEP network
	Serial.print(".");
	delay(5000);
	}
	Serial.println("\nConected.");
	}
	// CO2 reading
	co2 = analogRead(MQ_analog);

	// Humidity and temperature reading
	temperature = dht.readTemperature();
	humidity = dht.readHumidity();
	// test reading values
	if (isnan(temperature) \|\| isnan(humidity))
	{
	Serial.println("Failure to read DHT");
	}
	else
	{
	digitalWrite(LED, HIGH);
	Serial.print("Temperature: ");
	Serial.print(temperature, 1);
	Serial.print("*C ");
	Serial.print("Humidity: ");
	Serial.print(humidity, 1);
	Serial.print("% ");
	Serial.print("CO2: ");
	Serial.print(co2);
	Serial.println("ppm");
	displayScroll();
	}

	// Send data to ThingSpeak: Temperature field 1, Humidity field 2, CO2 field 3

	ThingSpeak.setField(1, temperature);
	ThingSpeak.setField(2, humidity);
	ThingSpeak.setField(3, co2);

	int httpResponseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
	if(httpResponseCode == 200){
	Serial.println("Channel uptaded.");
	}
	else{
	Serial.println("Failed to update channel. HTTP error code " + String(httpResponseCode));
	}

	delay(10000); // Wait 10 seconds
	digitalWrite(LED, LOW); // Turn LED off
	delay(1000); // Wait 1 second
	}

	voiddisplayScroll()
	{
	display.clearDisplay();
	display.setCursor(0,7);
	display.print("ScholAir");
	display.setCursor(1,20);
	display.setTextSize(1);
	display.print("Temp:"+String(temperature,0)+"C");
	display.setCursor(2,30);
	display.print("Humid:"+String(humidity,0)+"%");
	display.setCursor(3,40);
	display.print("CO2:"+String(co2)+"ppm");
	display.display(); // Escreve as informações da lista de escrita no display
	}

view raw sensor_DHT11_MQ_ESP32_ThingSpeak_OLED.ino hosted with ❤ by GitHub

Silvia Calmon de Albuquerque

	// Use this file to store all of the private credentials
	// and connection details

	#defineSECRET_SSID "MySSID"// replace MySSID with your WiFi network name
	#defineSECRET_PASS "MyPassword"// replace MyPassword with your WiFi password

	#defineSECRET_CH_ID 0000000// replace 0000000 with your channel number
	#defineSECRET_WRITE_APIKEY "XYZ"// replace XYZ with your channel write API Key

view raw secrets.h hosted with ❤ by GitHub

	/*
	Code to read CO2, temperature and humidity, using MQ and DHT-11 sensors controlled by
	an ESP32 micro-controller
	*/

	#include"ThingSpeak.h"
	#include"secrets.h"
	#include<WiFi.h>
	#include<Adafruit_Sensor.h>
	#include<DHT.h>
	#include<Wire.h>
	#include<Adafruit_GFX.h>
	#include<Adafruit_SSD1306.h>

	// Wi-Fi defitions
	char ssid[] = SECRET_SSID; // network SSID
	char pass[] = SECRET_PASS; // network password
	int keyIndex = 0; // network key Index number (needed only for WEP)
	WiFiClient client;

	// Thing Speak definitions
	unsignedlong myChannelNumber = SECRET_CH_ID;
	constchar * myWriteAPIKey = SECRET_WRITE_APIKEY;

	// Display OLED
	Adafruit_SSD1306 display(128, 64, &Wire, 4);

	// DHT11 definitions
	#defineDHTPIN13
	#defineDHTTYPE DHT11 // define o tipo de sensor, no caso DHT11
	DHT dht(DHTPIN, DHTTYPE);
	float humidity;
	float temperature;

	// CO2 definitions
	#defineMQ_analog2// MQ analog PIN
	#defineMQ_dig7// MQ digital PIN
	long co2;

	// LED pin
	constint LED = 12;

	voidsetup() {
	Serial.begin(115200); // Monitor serial initialization
	Serial.println("Beginning...");
	pinMode(LED, OUTPUT);
	WiFi.mode(WIFI_STA); // Set Wi-Fi mode as station
	ThingSpeak.begin(client); // ThingSpeak initialization
	dht.begin(); // DHT-11 initialization
	pinMode(MQ_analog, INPUT);
	pinMode(MQ_dig, INPUT);
	// Display initialization and configuration
	display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
	display.setTextSize(2);
	display.setTextColor(WHITE);
	display.setTextWrap(false);
	}

	voidloop() {
	// Connect or reconnect to WiFi
	if(WiFi.status() != WL_CONNECTED){
	Serial.print("Trying to connect: ");
	Serial.println(SECRET_SSID);
	while(WiFi.status() != WL_CONNECTED){
	WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network. Change this line if using open or WEP network
	Serial.print(".");
	delay(5000);
	}
	Serial.println("\nConected.");
	}
	// CO2 reading
	co2 = analogRead(MQ_analog);

	// Humidity and temperature reading
	temperature = dht.readTemperature();
	humidity = dht.readHumidity();
	// test reading values
	if (isnan(temperature) \|\| isnan(humidity))
	{
	Serial.println("Failure to read DHT");
	}
	else
	{
	digitalWrite(LED, HIGH);
	Serial.print("Temperature: ");
	Serial.print(temperature, 1);
	Serial.print("*C ");
	Serial.print("Humidity: ");
	Serial.print(humidity, 1);
	Serial.print("% ");
	Serial.print("CO2: ");
	Serial.print(co2);
	Serial.println("ppm");
	displayScroll();
	}

	// Send data to ThingSpeak: Temperature field 1, Humidity field 2, CO2 field 3

	ThingSpeak.setField(1, temperature);
	ThingSpeak.setField(2, humidity);
	ThingSpeak.setField(3, co2);

	int httpResponseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
	if(httpResponseCode == 200){
	Serial.println("Channel uptaded.");
	}
	else{
	Serial.println("Failed to update channel. HTTP error code " + String(httpResponseCode));
	}

	delay(10000); // Wait 10 seconds
	digitalWrite(LED, LOW); // Turn LED off
	delay(1000); // Wait 1 second
	}

	voiddisplayScroll()
	{
	display.clearDisplay();
	display.setCursor(0,7);
	display.print("ScholAir");
	display.setCursor(1,20);
	display.setTextSize(1);
	display.print("Temp:"+String(temperature,0)+"C");
	display.setCursor(2,30);
	display.print("Humid:"+String(humidity,0)+"%");
	display.setCursor(3,40);
	display.print("CO2:"+String(co2)+"ppm");
	display.display(); // Escreve as informações da lista de escrita no display
	}

view raw sensor_DHT11_MQ_ESP32_ThingSpeak_OLED.ino hosted with ❤ by GitHub

Silvia Calmon de Albuquerque

	// Use this file to store all of the private credentials
	// and connection details

	#defineSECRET_SSID "MySSID"// replace MySSID with your WiFi network name
	#defineSECRET_PASS "MyPassword"// replace MyPassword with your WiFi password

	#defineSECRET_CH_ID 0000000// replace 0000000 with your channel number
	#defineSECRET_WRITE_APIKEY "XYZ"// replace XYZ with your channel write API Key

view raw secrets.h hosted with ❤ by GitHub

	/*
	Code to read CO2, temperature and humidity, using MQ and DHT-11 sensors controlled by
	an ESP32 micro-controller
	*/

	#include"ThingSpeak.h"
	#include"secrets.h"
	#include<WiFi.h>
	#include<Adafruit_Sensor.h>
	#include<DHT.h>
	#include<Wire.h>
	#include<Adafruit_GFX.h>
	#include<Adafruit_SSD1306.h>

	// Wi-Fi defitions
	char ssid[] = SECRET_SSID; // network SSID
	char pass[] = SECRET_PASS; // network password
	int keyIndex = 0; // network key Index number (needed only for WEP)
	WiFiClient client;

	// Thing Speak definitions
	unsignedlong myChannelNumber = SECRET_CH_ID;
	constchar * myWriteAPIKey = SECRET_WRITE_APIKEY;

	// Display OLED
	Adafruit_SSD1306 display(128, 64, &Wire, 4);

	// DHT11 definitions
	#defineDHTPIN13
	#defineDHTTYPE DHT11 // define o tipo de sensor, no caso DHT11
	DHT dht(DHTPIN, DHTTYPE);
	float humidity;
	float temperature;

	// CO2 definitions
	#defineMQ_analog2// MQ analog PIN
	#defineMQ_dig7// MQ digital PIN
	long co2;

	// LED pin
	constint LED = 12;

	voidsetup() {
	Serial.begin(115200); // Monitor serial initialization
	Serial.println("Beginning...");
	pinMode(LED, OUTPUT);
	WiFi.mode(WIFI_STA); // Set Wi-Fi mode as station
	ThingSpeak.begin(client); // ThingSpeak initialization
	dht.begin(); // DHT-11 initialization
	pinMode(MQ_analog, INPUT);
	pinMode(MQ_dig, INPUT);
	// Display initialization and configuration
	display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
	display.setTextSize(2);
	display.setTextColor(WHITE);
	display.setTextWrap(false);
	}

	voidloop() {
	// Connect or reconnect to WiFi
	if(WiFi.status() != WL_CONNECTED){
	Serial.print("Trying to connect: ");
	Serial.println(SECRET_SSID);
	while(WiFi.status() != WL_CONNECTED){
	WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network. Change this line if using open or WEP network
	Serial.print(".");
	delay(5000);
	}
	Serial.println("\nConected.");
	}
	// CO2 reading
	co2 = analogRead(MQ_analog);

	// Humidity and temperature reading
	temperature = dht.readTemperature();
	humidity = dht.readHumidity();
	// test reading values
	if (isnan(temperature) \|\| isnan(humidity))
	{
	Serial.println("Failure to read DHT");
	}
	else
	{
	digitalWrite(LED, HIGH);
	Serial.print("Temperature: ");
	Serial.print(temperature, 1);
	Serial.print("*C ");
	Serial.print("Humidity: ");
	Serial.print(humidity, 1);
	Serial.print("% ");
	Serial.print("CO2: ");
	Serial.print(co2);
	Serial.println("ppm");
	displayScroll();
	}

	// Send data to ThingSpeak: Temperature field 1, Humidity field 2, CO2 field 3

	ThingSpeak.setField(1, temperature);
	ThingSpeak.setField(2, humidity);
	ThingSpeak.setField(3, co2);

	int httpResponseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
	if(httpResponseCode == 200){
	Serial.println("Channel uptaded.");
	}
	else{
	Serial.println("Failed to update channel. HTTP error code " + String(httpResponseCode));
	}

	delay(10000); // Wait 10 seconds
	digitalWrite(LED, LOW); // Turn LED off
	delay(1000); // Wait 1 second
	}

	voiddisplayScroll()
	{
	display.clearDisplay();
	display.setCursor(0,7);
	display.print("ScholAir");
	display.setCursor(1,20);
	display.setTextSize(1);
	display.print("Temp:"+String(temperature,0)+"C");
	display.setCursor(2,30);
	display.print("Humid:"+String(humidity,0)+"%");
	display.setCursor(3,40);
	display.print("CO2:"+String(co2)+"ppm");
	display.display(); // Escreve as informações da lista de escrita no display
	}

view raw sensor_DHT11_MQ_ESP32_ThingSpeak_OLED.ino hosted with ❤ by GitHub

Silvia Calmon de Albuquerque