Create Mobile Apps for Android and iOS Connecting to the MKR

/*  Arduino WiFi Script Server   Created October 20, 2013  Mikael Kindborg, Evothings AB   TCP socket server that accept commands for basic scripting  of the Arduino board.   This example is written for a network using WPA encryption.  For WEP or WPA, change the Wifi.begin() call accordingly.   The API consists of the requests listed below.   Requests and responses end with a new line.   The input parameter n is a pin number ranging from 2 to 9.   The response is always a 4-character string with a  hex encoded number ranging from 0 to FFFF.   Possible response string values:   H (result from digital read)  L (result from digital read)  0 to 1023 - Analog value (result from analog read)   Set pin mode to OUTPUT for pin n: On  Response: None  Example: O5  Note: O is upper case letter o, not digit zero (0).   Set pin mode to INPUT for pin n: In  Response: None  Example: I5   Write LOW to pin n: Ln  Response: None  Example: L5   Write HIGH to pin n: Hn  Response: None  Example: H5   READ pin n: Rn  Response: "H" (HIGH) or "L" (LOW)  Example: R5 -> H   ANALOG read pin n: An  Response: int value as string (range "0" to "1023")  Example: A5 -> 42 */  // Include files. #include <SPI.h> #include <WiFi101.h>  // Your network SSID (network name). // TODO: Enter the name of your wifi network here. char ssid[] = "wifi name";  // Your network password. // TODO: Enter the password of your wifi network here. char pass[] = "wifi password";  // Your network key Index number (needed only for WEP). int keyIndex = 0;  // Server status flag. int status = WL_IDLE_STATUS;  // Create WiFi server listening on the given port. WiFiServer server(3300);  void setup() {  // Start serial communication with the given baud rate.  // NOTE: Remember to set the baud rate in the Serial  // monitor to the same value.  Serial.begin(9600);   // Wait for serial port to connect. Needed for Leonardo only  while (!Serial) {  ;  }   // Check for the presence of the WiFi shield.  if (WiFi.status() == WL_NO_SHIELD) {  // If no shield, print message and exit setup.  Serial.println("WiFi shield not present");  status = WL_NO_SHIELD;  return;  }   // Connect to Wifi network.  while (status != WL_CONNECTED) {  Serial.print("Connecting to Network named: ");  Serial.println(ssid);   // Connect to WPA/WPA2 network. Update this line if  // using open or WEP network.  status = WiFi.begin(ssid, pass);   // wait 10 seconds for connection:  delay(10000);  }   // Start the server.  server.begin();   // Print WiFi status.  printWifiStatus(); }  void loop() {  // Check that we are connected.  if (status != WL_CONNECTED) {  return;  }   // Listen for incoming client requests.  WiFiClient client = server.available();  if (!client) {  return;  }   Serial.println("Client connected");   String request = readRequest(&client);  executeRequest(&client, &request);   // Close the connection.  //client.stop();   Serial.println("Client disonnected"); }  // Read the request line. The string from the JavaScript client ends with a newline. String readRequest(WiFiClient* client) {  String request = "";   // Loop while the client is connected.  while (client->connected()) {  // Read available bytes.  while (client->available()) {  // Read a byte.  char c = client->read();   // Print the value (for debugging).  Serial.write(c);   // Exit loop if end of line.  if ('\n' == c) {  return request;  }   // Add byte to request line.  request += c;  }  }  return request; }  void executeRequest(WiFiClient* client, String* request) {  char command = readCommand(request);  int n = readParam(request);  if ('O' == command) {  pinMode(n, OUTPUT);  } else if ('I' == command) {  pinMode(n, INPUT);  } else if ('L' == command) {  digitalWrite(n, LOW);  } else if ('H' == command) {  digitalWrite(n, HIGH);  } else if ('R' == command) {  sendResponse(client, String(digitalRead(n)));  } else if ('A' == command) {  sendResponse(client, String(analogRead(n)));  } }  // Read the command from the request string. char readCommand(String* request) {  String commandString = request->substring(0, 1);  return commandString.charAt(0); }  // Read the parameter from the request string. int readParam(String* request) {  // This handles a hex digit 0 to F (0 to 15).  char buffer[2];  buffer[0] = request->charAt(1);  buffer[1] = 0;  return (int) strtol(buffer, NULL, 16); }  void sendResponse(WiFiClient* client, String response) {  // Send response to client.  client->println(response);   // Debug print.  Serial.println("sendResponse:");  Serial.println(response); }  void printWifiStatus() {  Serial.println("WiFi status");   // Print network name.  Serial.print(" SSID: ");  Serial.println(WiFi.SSID());   // Print WiFi shield IP address.  IPAddress ip = WiFi.localIP();  Serial.print(" IP Address: ");  Serial.println(ip);   // Print the signal strength.  long rssi = WiFi.RSSI();  Serial.print(" Signal strength (RSSI):");  Serial.print(rssi);  Serial.println(" dBm"); }