GMU:Dataflow/Jam session/Ayla Güney: Difference between revisions

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 arduino code:
-[[File:sending1.jpg|200px]]
+#include <ESP8266WiFi.h>
+#include <FirebaseArduino.h>
+// Set these to run example.
+#define FIREBASE_HOST "realtime-distance-sensor.firebaseio.com"
+#define FIREBASE_AUTH "O5IKDBWKoCCPDYGeqxmLhM3Hn5maQZ4Yj3puRSSF"
+#define WIFI_SSID  "AndroidHotspot8432" //"o2-WLAN93"
+#define WIFI_PASSWORD "5ea71cf6ed4c"  //"9592132995009940"
+#define echoPin  D7 // Echo Pin
+#define trigPin D6 // Trigger Pin
+long duration, distance; // Duration used to calculate distance
+void setup() {
+  Serial.begin(115200);
+  pinMode(trigPin, OUTPUT);
+  pinMode(echoPin, INPUT);
+  // connect to wifi.
+  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
+  Serial.print("connecting");
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print(".");
+    delay(500);
+  }
+  Serial.println();
+  Serial.print("connected: ");
+  Serial.println(WiFi.localIP());
+  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
+}
+void loop() {
+digitalWrite(trigPin, LOW);
+delayMicroseconds(2);
+digitalWrite(trigPin, HIGH);
+delayMicroseconds(10);
+digitalWrite(trigPin, LOW);
+duration = pulseIn(echoPin, HIGH);
+//Calculate the distance (in cm) based on the speed of sound.
+float distance = duration*0.0343/2;
+Serial.println(distance);
+Serial.println ( " cm");
+delay (200);
+digitalWrite(echoPin, HIGH);
+//send data to firebase
+Firebase.setFloat("dist", distance);
+  digitalWrite(echoPin, LOW);
+  delay(1000);
+}