Hi Guys, some time ago I realized a thermostat for my gas boiler, to interface the boiler I used an original Arduino MKR1000 with a webserver inside, in order to manage http requests to switch on and switch off the boiler.
The project is working fine except that each three or four days I need to go downstairs,
turn arduino off and turn it on again because it goes to a standstill.
During this standstill:
- the green led, the one that indicates that arduino is connected to a power supply, is on, and another orange blinking led, next to the green one, turns on.
- If I try to ping the arduino IP address, it works fine
- If I try to submit an http request via browser to arduino webserver then no response comes back
I have no idea if it could be an hardware or software issue, anyway this is sketch:
#include <WiFi101.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
#include <WiFiSSLClient.h>
#include <WiFiUdp.h>
#include <SPI.h>
const char* ssid = "*****";
const char* pass = "*****";
const char* host = "192.168.1.10";
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int keyIndex = 0;Â Â Â Â Â Â Â Â
int relaypin = 2;
int currentState = 0;
bool val = true;
int status = WL_IDLE_STATUS;
WiFiServer server(301);
void setup() {
 Serial.begin(9600);   // initialize serial communication
 Serial.print("Start Serial ");
 pinMode(relaypin, OUTPUT);  Â
 digitalWrite(relaypin, LOW);
 // Check for the presence of the shield
 Serial.print("WiFi101 shield: ");
 if (WiFi.status() == WL_NO_SHIELD) {
  Serial.println("NOT PRESENT");
  return; // don't continue
 }
 Serial.println("DETECTED");
 // attempt to connect to Wifi network:
 while ( status != WL_CONNECTED) {
  Serial.print("Attempting to connect to Network named: ");
  Serial.println(ssid);         // print the network name (SSID);
  // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
  status = WiFi.begin(ssid, pass);
  // wait 10 seconds for connection:
  delay(10000);
 }
 server.begin();             // start the web server on port 301
 printWifiStatus();            // you're connected now, so print out the status
}
void loop() {
 WiFiClient client = server.available(); // listen for incoming clients
 if (client) {              // if you get a client,
  Serial.println("new client");     // print a message out the serial port
  String currentLine = "";        // make a String to hold incoming data from the client
  while (client.connected()) {      // loop while the client's connected
   if (client.available()) {      // if there's bytes to read from the client,
    char c = client.read();      // read a byte, then
    Serial.write(c);          // print it out the serial monitor
    if (c == '\n') {          // if the byte is a newline character
     // if the current line is blank, you got two newline characters in a row.
     // that's the end of the client HTTP request, so send a response:
     if (currentLine.length() == 0) {
      // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
      // and a content-type so the client knows what's coming, then a blank line:
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      client.println("HTTP/1.1 200 OK");
      client.println("Content-type:text/html");
      client.println();
      // the content of the HTTP response follows the header:
      client.print("PIN " + (String)relaypin + " IS " + (String)digitalRead(relaypin));
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      // The HTTP response ends with another blank line:
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      client.println();
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      // break out of the while loop:
      break;
     }
     else {   // if you got a newline, then clear currentLine:
      currentLine = "";
     }
    }
    else if (c != '\r') {  // if you got anything else but a carriage return character,
     currentLine += c;   // add it to the end of the currentLine
    }
    // Check to see if the client request was "GET /ON" or "GET /OFF":
    if (currentLine.endsWith("GET /ON")) {
     digitalWrite(relaypin, HIGH);      Â
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    }
    if (currentLine.endsWith("GET /OFF")) {
     digitalWrite(relaypin, LOW);
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    }
   }
  }
  // close the connection:
  client.stop();
  Serial.println("client disonnected");
 }
}
void printWifiStatus() {
 // print the SSID of the network you're attached to:
 Serial.print("SSID: ");
 Serial.println(WiFi.SSID());
 // print your WiFi shield's IP address:
 IPAddress ip = WiFi.localIP();
 Serial.print("IP Address: ");
 Serial.println(ip);
 // print the received signal strength:
 long rssi = WiFi.RSSI();
 Serial.print("signal strength (RSSI):");
 Serial.print(rssi);
 Serial.println(" dBm");
}
Somebody could help?