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#include <DHT.h>
#include "ota.h"
#include <WiFiClient.h>
#include "CCS811.h"
#define TEMP_SENSOR_PIN 12
#define HUMIDITY_SENSOR_PIN 12
#define FAN_PIN 15
#define CO2_PIN 16
#define ULTRASONIC_PIN 12
#define PHOTORESISTOR 0 // pin 0 is analog
#define CHECK_FREQUENCY 2 // check sensors every 2 seconds
#define HUMIDITY_DESIRED 75
#define HUMIDITY_VARIATION 3 // ultrasonic turns on at (75 - 3 = 72) and off
// at (75 + 3 = 78)
WiFiClient *wific = 0;
// Tempature + Humidity Sensor
#define DHTPIN 12
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
/*
* IIC address default 0x5A, the address becomes 0x5B if the ADDR_SEL is soldered.
*/
//CCS811 sensor(&Wire, /*IIC_ADDRESS=*/0x5A);
CCS811 sensor;
void setup(void)
{
setupWifi((char *) hostname);
setupOTA((char *) hostname);
dht.begin(); // temp+humidity sensor
pinMode(PHOTORESISTOR, INPUT); // photo resistor
wific = new WiFiClient();
Serial.begin(115200);
/*Wait for the chip to be initialized completely, and then exit*/
while(sensor.begin() != 0){
Serial.println("failed to init chip, please check if the chip connection is fine");
delay(1000);
}
/**
* @brief Set measurement cycle
* @param cycle:in typedef enum{
* eClosed, //Idle (Measurements are disabled in this mode)
* eCycle_1s, //Constant power mode, IAQ measurement every second
* Ecycle_10s, //Pulse heating mode IAQ measurement every 10 seconds
* eCycle_60s, //Low power pulse heating mode IAQ measurement every 60 seconds
* eCycle_250ms //Constant power mode, sensor measurement every 250ms
* }eCycle_t;
*/
sensor.setMeasCycle(sensor.eCycle_250ms);
}
void log_reading ( float temp_c, float humidity, float heat_index_c, int photons, uint16_t co2, uint16_t tvoc ) {
auto fmt = "T: %.2f H: %.2f HI: %.2f Light: %d CO2: %d TVOC: %d\r\n";
char buf[500];
snprintf(buf, sizeof(buf), fmt, temp_c, humidity, heat_index_c, photons, co2, tvoc);
//Serial.printf(fmt, temp_c, humidity, heat_index_c);
Serial.print(buf);
if (wific->connected()) {
wific->write(buf);
}
}
void loop() {
uint16_t co2, tvoc;
delay(1000);
if(sensor.checkDataReady() == true){
co2 = sensor.getCO2PPM();
tvoc = sensor.getTVOCPPB();
// Serial.print("CO2: ");
// Serial.print(sensor.getCO2PPM());
// Serial.print("ppm, TVOC: ");
// Serial.print(sensor.getTVOCPPB());
// Serial.println("ppb");
} else {
Serial.println("Data is not ready!");
}
/*!
* @brief Set baseline
* @param get from getBaseline.ino
*/
sensor.writeBaseLine(0x847B);
//delay cannot be less than measurement cycle
//delay(1000);
ArduinoOTA.handle();
auto ip = IPAddress(192,168,1,2);
auto port = 3141;
if (!wific->connected()) {
Serial.println("Attempting to connect");
wific->connect(ip, port);
}
// Wait a few seconds between measurements.
float hum = dht.readHumidity();
float temp = dht.readTemperature();
// Check if any reads failed and exit early (to try again).
if (isnan(hum) || isnan(temp) ) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
float hic = dht.computeHeatIndex(temp, hum, false);
int photons = analogRead(PHOTORESISTOR);
log_reading(temp, hum, hic, photons, co2, tvoc);
}
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