#include #include // if you have ethernet shield V1: # include #include byte mac[] = { 0x90, 0xA2, 0xDA, 0x10, 0xC5, 0xDD }; // change the mac @ with the @ mac of your shield Twitter twitter("923975243101818882-LdnxHIwOU0hgacaB0Fi8PzNlswCotkk"); // put your secret key here char msg[] = "There are someone waiting for you ^^^^^^"; // change the msg if you want EthernetServer server(80); EthernetClient client; void TwitterSend () ; void ServerWeb(); const int trigPin = A1; // Arduino UNO Pin A1 to trig on Ultrasonic Board const int echoPin = A2; // Arduino UNO Pin A2 to echo on Ultrasonic Board long duration; int objectDistance = 15;//distance in cm int pingSonar() { digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); return duration * 0.034 / 2; } void setup() { delay(1000); pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output pinMode(echoPin, INPUT); // Sets the echoPin as an Input Serial.begin(9600); if (Ethernet.begin(mac)) { Serial.print("Server at : "); Serial.println(Ethernet.localIP()); Serial.println("------------------------------------------------------\n"); } Serial.println("Waitting for the Sensor ..."); server.begin(); } void loop() { ServerWeb(); if (pingSonar()< objectDistance) { TwitterSend(); } delay(300); } void TwitterSend() { if (twitter.post(msg)) { int status = twitter.wait(&Serial); if (status == 200) { Serial.println("OK."); } else { Serial.print("failed : code "); //Serial.println(status); } } else { Serial.println("connection failed."); } } void ServerWeb () { delay(500); EthernetClient client = server.available(); if (client) { Serial.println("new client"); boolean currentLineIsBlank = true; while (client.connected()) { if (client.available()) { char c = client.read(); Serial.write(c); if (c == '\n' && currentLineIsBlank) { // send a standard http response header client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println("Connection: close"); client.println("Refresh: 3"); client.println(); client.println(""); client.println(""); client.println(""); client.println(""); client.print("

Sensor distance : "); client.print(pingSonar()); client.println(" cm

"); if (pingSonar()< objectDistance) { client.print("

>>>> Go check your Twitter you have a Notification<<<<

"); // change to your account TwitterSend(); } client.println(""); client.println(""); client.println(""); break; } if (c == '\n') { currentLineIsBlank = true; } else if (c != '\r') { currentLineIsBlank = false; } } } delay(1); // close the connection: client.stop(); Serial.println("client disconnected"); } }