diff --git a/sensorNode/sensorNode.ino b/sensorNode/sensorNode.ino new file mode 100644 index 0000000..c316684 --- /dev/null +++ b/sensorNode/sensorNode.ino @@ -0,0 +1,61 @@ +/* +* Athors: Oulis Evnagelos, Oulis Nikolaos, Katsibras Drosos +* Ultrasonic Sensor HC-SR04 and Arduino +* +*/ + +// defines pins numbers +const int trigPin = 9; +const int echoPin = 10; +const int response = 6; +const int response1 = 5; +const int id = 2; + +// defines variables +long duration; +int distance; + +void setup() { +pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output +pinMode(response, OUTPUT); +pinMode(response1, OUTPUT); +pinMode(echoPin, INPUT); // Sets the echoPin as an Input +Serial.begin(9600); // Starts the serial communication + +// Clears the trigPin +digitalWrite(trigPin, LOW); +delayMicroseconds(2); +} + +void loop() { +// Sets the trigPin on HIGH state for 10 micro seconds +digitalWrite(trigPin, HIGH); +delayMicroseconds(10); +digitalWrite(trigPin, LOW); + +// Reads the echoPin, returns the sound wave travel time in microseconds +duration = pulseIn(echoPin, HIGH); + +// Calculating the distance +distance= duration*0.034/2; + +// Prints the distance on the Serial Monitor +//Serial.print("Distance: "); +//Serial.println(distance); + +String park_out; +if (distance < 4){ + park_out = String(id) + "#0"; //parking isn't available. + digitalWrite(response, LOW); + digitalWrite(response1, HIGH); +} +else{ + park_out = String(id) + "#1"; //parking is available. + digitalWrite(response, HIGH); + digitalWrite(response1, LOW); +} + +Serial.println(park_out); + +delay(500); +} diff --git a/webInterface/parking.html b/webInterface/parking.html index 16c6d89..007a9da 100644 --- a/webInterface/parking.html +++ b/webInterface/parking.html @@ -1,5 +1,5 @@