SmarTrash #ArduinoCloudGames

1// -------------- smarTrash ---------------------
2
3#include "thingProperties.h"
4#include  <Arduino_MKRIoTCarrier.h>
5MKRIoTCarrier carrier;
6#define TRIG_PIN 10 // trigger  pin for Ultrasonic sensor
7#define ECHO_PIN 4  // Echo pin for ultrasonic sensor
8
9
10void  setup(){
11  float temperatura; // definition of temperature variable
12  float  soglia;      // definition of threshold variable
13  float distanza;    // definition  of ultrasonic measurement variable
14  float umidita;     // definition of humidity  variable 
15  
16  
17  // Connectiion to Wi-Fi network 
18  Serial.begin(9600);
19  while (!Serial);
20  initProperties();
21// Connect to Arduino IoT Cloud
22  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
23  //Get Cloud Info/errors  , 0 (only errors) up to 4
24  setDebugMessageLevel(2);
25  ArduinoCloud.printDebugInfo();
26  
27  //Wait to get cloud connection to init the carrier
28  while (ArduinoCloud.connected()  != 1) {
29    ArduinoCloud.update();
30    delay(500);
31  }
32  
33  //Carrier  Initialization 
34  carrier.begin();
35  carrier.display.setRotation(0);
36  delay(1500);
37  
38  
39  // PinMode definition
40  pinMode(TRIG_PIN, OUTPUT); //trigger pin  in output
41  pinMode(ECHO_PIN, INPUT); // echo pin in output
42  digitalWrite(TRIG_PIN,  LOW); // initialization of trigger pin to low 
43  pinMode(2,INPUT); // pinMode  def. for PIR motion sensor
44
45}
46void loop() {
47  ArduinoCloud.update();
48  // whenever the motion sensor detects a movement the measurement 
49  // is paused,  in order to avoid incorrect trash level measurements.
50  // The serial port also  prints that bin is open.
51  
52  if(digitalRead(2)==HIGH){
53   Serial.print("The  bin is open");
54   Serial.print('\n');
55  }
56  
57  // When the sensor  does not detect any movement for a while (the "while"
58  // is set via the manual  regulation of one screw on the motion sensor), the 
59  // measurement restarts.  The measurements consists of a trash level,
60  // temperature and humidity
61  else{
62    // Serial print on the state of the bin
63    Serial.print("The  bin is closed ");
64    Serial.print('\n');
65    // Distance measured by the  ultrasonic sensor
66    digitalWrite(TRIG_PIN, HIGH);
67    delayMicroseconds(10);
68    digitalWrite(TRIG_PIN, LOW);
69    unsigned long tempo = pulseIn(ECHO_PIN,  HIGH);
70    // Trash level (distanza) is measured in centimetres as the height  of the bin (26.5cm)
71    // - the distance measured between the ultrasonic sensor  and the bin.
72    distanza = (-(0.03438 * tempo / 2)+26.5);// 
73    delay(1000);
74    // Serial print for the trash level
75    Serial.println("Trash Level: "  + String(distanza) + "cm");
76    Serial.print('\n');
77    // Carrier measurement  of temperature and serial print
78    temperatura = carrier.Env.readTemperature(CELSIUS);
79    Serial.print("Temperature: " +String(temperatura)+ "C"); 
80    Serial.print('\n');
81    // Carrier measurement of humidity and serial print
82    umidita = carrier.Env.readHumidity();
83    Serial.print("Humidity: " +String(umidita) +"%"); 
84    Serial.print('\n');
85    // A threshold adjustment is introduced for temperature variations, 
86    //  in case the temperature is too high the threshold is reduced to 15 cm.
87    //  Otherwise it is set to 20 cm
88    // The goal of this is to reduce the chance  of rotting in food waste,
89    // it can be disactivated in case the bin is used  for plastic.  
90    if (temperatura>20){
91      soglia=15;
92    }
93    else  {
94      soglia=20;
95    }
96    // In case the distance is above the defined  threshold then the
97    // carrier display turns red and a message is sent via  the cloud 
98    // that notifies that the bin is full.
99    if(distanza>soglia){
100      carrier.display.fillScreen(ST77XX_RED);
101      notifica = "The bin is full!  Please take out the trash";  
102    }
103    // In case the threshold is below  the defined threshold then the
104    // carrier display turns red and a message  is sent via the cloud 
105    // that notifies that the bin is no longer full.
106    else{
107      carrier.display.fillScreen(ST77XX_GREEN);
108      notifica =  "The bin is no longer full!"; 
109    }
110  }
111  delay(2000);
112  
113  //  All credits to DevotiLabs
114  // feel free to use our code and project, and don't  hesitate to tell
115  // us what you end up doing with it ! 
116  
117  // Cheers,
118  // Eleonora, Federico, Claudio 
119  
120  }