ESP32 Forum

Code: Untitled.cpp Select all

#include <sensor-controller.h>

#include <Arduino.h>

#include <sstream>



// converts float to string

std::string Convert(float number)

{

    std::ostringstream buff;

    buff << number;

    return buff.str();

}



SensorController::SensorController(uint8_t gpio_data_)

{

    gpio_data = gpio_data_;

}



DHT SensorController::init()

{

    Serial.println("Starting temperature and humidity sensor...");

    // init dht with proper data port

    DHT sensor(gpio_data, DHT22);

    sensor.begin();

    sensorPtr = &sensor;

    // wait 4 second for booting

    delay(4000);

    Serial.println("Sensor connected!");

    return sensor;

}



std::string SensorController::readData()

{

    Serial.println("-----Sensor Controller-----");

    std::string temp = Convert(sensorPtr->readTemperature());

    std::string hum = Convert(sensorPtr->readHumidity());



    Serial.print("Temp: ");

    Serial.print(temp.c_str());

    Serial.print("°C / Humidity: ");

    Serial.print(hum.c_str());

    Serial.println("%");



    std::string sensorData = "{\"temp\": \"" + temp + "\", \"hum\": \"" + hum + "\"}";

    Serial.println("-------------------------");

    return sensorData;

}

Code: Untitled.cpp Select all

#ifndef temp_controller

#define temp_controller



// to make dht work with platform.io

// https://community.platformio.org/t/pio-libdeps-esp32dev-dht-sensor-library-dht-u-h29-fatal-error-adafruit-sensor-h-no-such-file-or-directory/21861/2

#include <Adafruit_Sensor.h>

#include <DHT.h>





class SensorController

{

public:

    SensorController(const uint8_t gpio_data);

    DHT init();

    std::string readData();



private:

    uint8_t gpio_data;

    DHT *sensorPtr;

};



#endif

Code: Untitled.cpp Select all

#include <Arduino.h>

#include <dotenv-parser.h>

#include <network-controller.h>

#include <http-controller.h>

#include <mic-controller.h>

#include <sensor-controller.h>

#include <sstream>



// mic gpios

const byte gpio_sck = 33;

const byte gpio_ws = 32;

const byte gpio_sd = 34;



// using led with g23 and gnd

const byte gpio_led = 23;



// sensor gpio

const byte gpio_data = 26;



// ip to my rpi in the home network

HttpController httpController("http://{ip}:8080");

SensorController sensorController(gpio_data);



void setup()

{

  // init g32 as an output

  pinMode(gpio_led, OUTPUT);



  // launch on proper port I guess

  Serial.begin(9600);



  // init env vars

  DotenvParser parser;

  parser.parseFileContent();



  // init network controller if both vars are set

  if (getenv("SSID") && getenv("PASSWORD"))

  {

    NetworkController networkController(getenv("SSID"), getenv("PASSWORD"));

    networkController.connect();

  }

  else

  {

    Serial.println("Ssid or password not given. Can't connect to network");

  }



  sensorController.init();



  // MicController micController(gpio_sck, gpio_ws, gpio_sd);

  // uint8_t *record = micController.record();

}



void loop()

{

  // power led on

  // Serial.println("Led on!");

  digitalWrite(gpio_led, HIGH); // HIGH -> 3.3v output



  // send alive request

  // const char *data = "{\"data\": \"still alive\"}";

  // httpController.postRequest("/esp/", "application/json", data);

  

  std::string sensorData = sensorController.readData();

  // httpController.postRequest("/esp/sensor", "application/json", sensorData.c_str());



  // wait 10 sec

  // delay(10000);

  // wait 300 sec = 5min

  sleep(300);



  // turn off led

  digitalWrite(gpio_led, LOW); // set voltage level to LOW to power off gpio -> 0v

  // Serial.println("Led off!");

  // wait 1 sec

  delay(1000);

}

Code: Select all

NetworkController networkController(getenv("SSID"), getenv("PASSWORD"));