MKR1000& ENV &Blynk

1// first including the neccessry libs 
2#define BLYNK_PRINT Serial
3#include  <math.h>
4#include <SPI.h>
5#include <WiFi101.h>
6#include <BlynkSimpleMKR1000.h>
7#include  <Arduino_MKRENV.h>
8
9// Auth for connectiong Blynk with your Device 
10char  auth[] = "*****";// here comes the auth code wich been send to you from Blynk  server
11char ssid[] = "*****";//your WIFI name
12char pass[] = "*****";//your  WIFI password
13
14
15BlynkTimer timer;// this timer is required to send data  from shield to blynk app in intervals 
16
17
18// this function to round float  numbers to just 2 decimal points although it is for AVR but it worked :)
19char  *dtostrf (double val, signed char width, unsigned char prec, char *sout) {
20  char  fmt[20];
21  sprintf(fmt, "%%%d.%df", width, prec);
22  sprintf(sout, fmt, val);
23  return sout;
24}
25
26
27void setup()
28{
29  
30  Serial.begin(9600);
31  // this line is very immportant which i dont know why but it didnt work without  it i got it from env arduino documentation 
32  if (!ENV.begin()) {
33   Serial.println("Failed  to initialize MKR ENV shield!");
34    while (1);
35  } 
36  
37
38
39
40  Blynk.begin(auth, ssid, pass);
41
42  timer.setInterval(1000L, sendSensor);
43}
44
45void  loop()
46{
47  Blynk.run();
48  timer.run();
49}
50
51
52void sendSensor()
53{
54  float h = ENV.readHumidity();
55  float t = ENV.readTemperature(); // or dht.readTemperature(true)  for Fahrenheit
56  float lx = ENV.readIlluminance();
57  float p=ENV.readPressure();
58  int uva= ENV.readUVA();
59  int uvb= ENV.readUVB();
60  int uvIndex= ENV.readUVIndex();
61  // rounding all vairables to 2 decimal points
62  char tt[16];
63  dtostrf(t,1,2,tt);
64char  hh[16];
65  dtostrf(h,1,2,hh);
66  
67  char lxx[16];
68  dtostrf(lx,1,2,lxx);
69  char pp[16];
70  dtostrf(p,1,2,pp);
71  
72  
73  if (isnan(h) || isnan(t))  {
74    Serial.println("Error");
75    return;
76  }
77  
78  Blynk.virtualWrite(V5,  hh);
79  Blynk.virtualWrite(V6, tt);
80  Blynk.virtualWrite(V7, lxx);
81  Blynk.virtualWrite(V8,  pp);
82  Blynk.virtualWrite(V9,uva);
83  Blynk.virtualWrite(V10,uvb);
84  Blynk.virtualWrite(V11,uvIndex);
85  
86}
87