/*
modified on Apr 10, 2021
Modified by MehranMaleki from Arduino Examples
Home
*/

#include <Wire.h>
#include "DFRobot_SHT20.h"

DFRobot_SHT20 sht20;

void fanOn() {
  digitalWrite(7, HIGH);
}

void fanOff() {
  digitalWrite(7, LOW);
}


void setup()
{
    pinMode(4, OUTPUT);
    pinMode(7, OUTPUT);
    digitalWrite(7, LOW);
    
    Serial.begin(115200);
    //Serial.println("SHT20 Example!");
    //Serial.println("temperature,humidity");
    sht20.initSHT20();                         // Init SHT20 Sensor
    delay(100);
    //sht20.checkSHT20();                        // Check SHT20 Sensor
}

void toggle() {
  digitalWrite(4, HIGH);
  delay(100);
  digitalWrite(4, LOW);
}

void loop()
{
  while (Serial.available()) {
    const int c = Serial.read();
    if (c == 's') {
      // TODO dump the current status  
      float humd = sht20.readHumidity();         // Read Humidity
      float temp = sht20.readTemperature();      // Read Temperature
      float volts = (5.0f/1024.0f)*analogRead(A2);
      Serial.print(humd);
      Serial.print(",");
      Serial.print(temp);
      Serial.print(",");
      Serial.println(volts);
    } else if (c == 'h') {
      toggle();
    }
  }
  delay(1);
}