Real-Time Data Access Using Arduino and Firebase

1#include <ESP8266WiFi.h>
2#include <FirebaseArduino.h>
3#include <SoftwareSerial.h>
4
5//
6  Set these to run example.
7#define FIREBASE_HOST "***********************************"
8#define
9  FIREBASE_AUTH "***********************************"
10#define WIFI_SSID "WiFi
11  ssid"
12#define WIFI_PASSWORD "PASSWORD"
13SoftwareSerial esp(D2,D3);
14
15void
16  setup() {
17  Serial.begin(9600);
18  esp.begin(4800);
19
20  // connect to
21  wifi.
22  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
23  Serial.print("connecting");
24
25  while (WiFi.status() != WL_CONNECTED) {
26    Serial.print(".");
27    delay(500);
28
29  }
30  Serial.println();
31  Serial.print("connected: ");
32  Serial.println(WiFi.localIP());
33
34  
35  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
36}
37
38int n = 0;
39float
40  val;
41
42void loop() {
43
44   while(esp.available()>0)
45  {
46     float
47  val = esp.parseFloat();
48     if(esp.read()=='\
49')
50     {
51       Serial.println(val);
52
53       
54     }
55
56  // set value
57  Firebase.setFloat("number", val);
58
59  // handle error
60  if (Firebase.failed()) {
61      Serial.print("setting
62  /number failed:");
63      Serial.println(Firebase.error());  
64      return;
65
66  }
67  delay(100);
68  
69
70
71  // get value 
72  Serial.print("number:
73  ");
74  Serial.println(Firebase.getFloat("number"));
75  delay(100);
76
77
78
79  // append a new value to /logs
80  String name = Firebase.pushInt("logs", n++);
81
82  // handle error
83  if (Firebase.failed()) {
84      Serial.print("pushing
85  /logs failed:");
86      Serial.println(Firebase.error());  
87      return;
88
89  }
90  Serial.print("pushed: /logs/");
91  Serial.println(name);
92  delay(100);
93
94  }
95}
96

1#include <ESP8266WiFi.h>
2#include <FirebaseArduino.h>
3#include <SoftwareSerial.h>
4
5//  Set these to run example.
6#define FIREBASE_HOST "***********************************"
7#define  FIREBASE_AUTH "***********************************"
8#define WIFI_SSID "WiFi  ssid"
9#define WIFI_PASSWORD "PASSWORD"
10SoftwareSerial esp(D2,D3);
11
12void  setup() {
13  Serial.begin(9600);
14  esp.begin(4800);
15
16  // connect to  wifi.
17  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
18  Serial.print("connecting");
19  while (WiFi.status() != WL_CONNECTED) {
20    Serial.print(".");
21    delay(500);
22  }
23  Serial.println();
24  Serial.print("connected: ");
25  Serial.println(WiFi.localIP());
26  
27  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
28}
29
30int n = 0;
31float  val;
32
33void loop() {
34
35   while(esp.available()>0)
36  {
37     float  val = esp.parseFloat();
38     if(esp.read()=='\n')
39     {
40       Serial.println(val);
41       
42     }
43
44  // set value
45  Firebase.setFloat("number", val);
46  // handle error
47  if (Firebase.failed()) {
48      Serial.print("setting  /number failed:");
49      Serial.println(Firebase.error());  
50      return;
51  }
52  delay(100);
53  
54
55
56  // get value 
57  Serial.print("number:  ");
58  Serial.println(Firebase.getFloat("number"));
59  delay(100);
60
61
62  // append a new value to /logs
63  String name = Firebase.pushInt("logs", n++);
64  // handle error
65  if (Firebase.failed()) {
66      Serial.print("pushing  /logs failed:");
67      Serial.println(Firebase.error());  
68      return;
69  }
70  Serial.print("pushed: /logs/");
71  Serial.println(name);
72  delay(100);
73  }
74}
75

1#include <SoftwareSerial.h>
2SoftwareSerial ArduinoUno(3,2);
3int  n;
4void setup() {
5  // put your setup code here, to run once:
6  Serial.begin(9600);
7  ArduinoUno.begin(4800);
8  
9pinMode (3,INPUT);
10pinMode (2,OUTPUT);
11
12}
13
14void  loop() {
15  // put your main code here, to run repeatedly:
16  n=analogRead(A2);
17   ArduinoUno.print(n);
18  ArduinoUno.println("\
19");
20  Serial.println(n);
21  delay(300);
22}
23