Nu-Edu-Techno Smart clothes rack

1/*************************************************************
2
3  This is a simple demo of sending and receiving some data.
4  Be sure to check out other examples!
5 *************************************************************/
6
7/* Fill-in information from Blynk Device Info here */
8#define BLYNK_TEMPLATE_ID           "TMPL6M6GGku3N"
9#define BLYNK_TEMPLATE_NAME         "Quickstart Template"
10#define BLYNK_AUTH_TOKEN            "iWFH0eaG540EPM1GVyKV2sUzHMFQnCPm"
11
12/* Comment this out to disable prints and save space */
13#define BLYNK_PRINT Serial
14#include "DHT.h" 
15
16#define DHTPIN 4     // Digital pin connected to the DHT sensor
17#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
18DHT dht(DHTPIN, DHTTYPE);
19
20int sensor_water = 2;
21int sensor_off = 5;
22int sensor_on = 18;
23int inA = 19;
24int inB = 21;
25
26#include <WiFiManager.h> 
27#include <WiFi.h>
28#include <WiFiClient.h>
29#include <BlynkSimpleEsp32.h>
30
31// Your WiFi credentials. 
32// Set password to "" for open networks.
33// char ssid[] = "Iceland";
34// char pass[] = "12012548";
35
36BlynkTimer timer;
37
38// This function is called every time the Virtual Pin 0 state changes
39BLYNK_WRITE(V0)
40{
41  // Set incoming value from pin V0 to a variable
42  int value = param.asInt();
43
44  // Update state
45  Blynk.virtualWrite(V1, value);
46}
47
48// This function is called every time the device is connected to the Blynk.Cloud
49BLYNK_CONNECTED()
50{
51  // Change Web Link Button message to "Congratulations!"
52  Blynk.setProperty(V3, "offImageUrl", "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations.png");
53  Blynk.setProperty(V3, "onImageUrl",  "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations_pressed.png");
54  Blynk.setProperty(V3, "url", "https://docs.blynk.io/en/getting-started/what-do-i-need-to-blynk/how-quickstart-device-was-made");
55}
56
57// This function sends Arduino's uptime every second to Virtual Pin 2.
58void myTimerEvent()
59{
60  // You can send any value at any time.
61  // Please don't send more that 10 values per second.
62  Blynk.virtualWrite(V2, millis() / 1000);
63}
64
65void setup()
66{
67  // Debug console
68  Serial.begin(115200);
69  WiFiManager wm;
70
71  
72   bool res;
73    // res = wm.autoConnect(); // auto generated AP name from chipid
74    res = wm.autoConnect("Clothes rack"); // anonymous ap
75    //res = wm.autoConnect("AutoConnectAP","password"); // password protected ap
76
77    if(!res) {
78        Serial.println("Failed to connect");
79        ESP.restart();  
80    } 
81    else {
82        //if you get here you have connected to the WiFi    
83        Serial.println("connected...yeey :)");
84    }
85  
86  while(WiFi.status() != WL_CONNECTED) { 
87    Serial.print("."); 
88    delay(400); 
89    
90  }
91  Serial.printf("\nWiFi connected\nIP : ");
92  Serial.println(WiFi.localIP());
93  Blynk.config(BLYNK_AUTH_TOKEN);
94  // You can also specify server:
95  //Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass, "blynk.cloud", 80);
96  //Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass, IPAddress(192,168,1,100), 8080);
97
98  // Setup a function to be called every second
99  timer.setInterval(1000L, myTimerEvent);
100
101  dht.begin();
102  pinMode(sensor_water,INPUT);
103  pinMode(sensor_on,INPUT);
104  pinMode(sensor_off,INPUT);
105  pinMode(inA,OUTPUT);
106  pinMode(inB,OUTPUT);
107  digitalWrite(inA,0);
108  digitalWrite(inB,0);
109}
110float h = 0,t=0,val=0;
111
112void workon(){
113  digitalWrite(inA,0);
114  digitalWrite(inB,1);
115 }
116
117void workoff(){
118  digitalWrite(inA,1);
119  digitalWrite(inB,0);
120 }
121
122void stopwork(){
123  digitalWrite(inA,0);
124  digitalWrite(inB,0);
125 }
126 
127void loop()
128{
129  Blynk.run();
130  temp();
131  val = digitalRead(sensor_water);
132  if(val==1){
133    workoff();
134    Blynk.virtualWrite(V7, 1);
135    int val_off = digitalRead(sensor_off);
136    if(val_off == 0){
137      Blynk.virtualWrite(V6, 1);
138      Blynk.virtualWrite(V5, 0);
139      stopwork();
140    }
141    delay(2000);
142  }else{
143    workon();
144    Blynk.virtualWrite(V7, 0);
145    int val_on = digitalRead(sensor_on);
146    if(val_on == 0){
147      Blynk.virtualWrite(V6, 0);
148      Blynk.virtualWrite(V5, 1);
149      stopwork();
150    }
151    delay(2000);
152  }
153  
154}
155
156void temp(){
157  h = dht.readHumidity();
158  t = dht.readTemperature();
159
160  if (isnan(h) || isnan(t)){
161    Serial.println(F("Failed to read from DHT sensor!"));
162    return;
163  }
164
165  float hic = dht.computeHeatIndex(t, h, false);
166
167  Serial.print(F("Humidity: "));
168  Serial.print(h);
169  Serial.print(F("%  Temperature: "));
170  Serial.print(t);
171  Serial.print(F("°C "));
172  Serial.println();
173  Blynk.virtualWrite(V4, t);
174  delay(2000);
175}