From f3e524a6b07f63e142f9e2f18ed451697f408d5d Mon Sep 17 00:00:00 2001 From: Juraj Andrassy Date: Sat, 26 Oct 2024 16:45:38 +0200 Subject: [PATCH] WiFi examples --- .../AP_SimpleWebServer/AP_SimpleWebServer.ino | 152 ++++++++++++++++ .../AP_SimpleWebServer/arduino_secrets.h | 3 + .../SimpleWebServerWiFi.ino | 130 ++++++++++++++ .../SimpleWebServerWiFi/arduino_secrets.h | 2 + .../WiFiAdvancedChatServer.ino | 101 +++++++++++ .../WiFiAdvancedChatServer/arduino_secrets.h | 2 + .../examples/WiFiSSLClient/WiFiSSLClient.ino | 106 +++++++++++ .../examples/WiFiSSLClient/arduino_secrets.h | 2 + .../WiFiUdpNtpClient/WiFiUdpNtpClient.ino | 166 ++++++++++++++++++ .../WiFiUdpNtpClient/arduino_secrets.h | 2 + .../WiFiUdpSendReceiveString.ino | 105 +++++++++++ .../arduino_secrets.h | 2 + 12 files changed, 773 insertions(+) create mode 100644 libraries/WiFi/examples/AP_SimpleWebServer/AP_SimpleWebServer.ino create mode 100644 libraries/WiFi/examples/AP_SimpleWebServer/arduino_secrets.h create mode 100644 libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino create mode 100644 libraries/WiFi/examples/SimpleWebServerWiFi/arduino_secrets.h create mode 100644 libraries/WiFi/examples/WiFiAdvancedChatServer/WiFiAdvancedChatServer.ino create mode 100644 libraries/WiFi/examples/WiFiAdvancedChatServer/arduino_secrets.h create mode 100644 libraries/WiFi/examples/WiFiSSLClient/WiFiSSLClient.ino create mode 100644 libraries/WiFi/examples/WiFiSSLClient/arduino_secrets.h create mode 100644 libraries/WiFi/examples/WiFiUdpNtpClient/WiFiUdpNtpClient.ino create mode 100644 libraries/WiFi/examples/WiFiUdpNtpClient/arduino_secrets.h create mode 100644 libraries/WiFi/examples/WiFiUdpSendReceiveString/WiFiUdpSendReceiveString.ino create mode 100644 libraries/WiFi/examples/WiFiUdpSendReceiveString/arduino_secrets.h diff --git a/libraries/WiFi/examples/AP_SimpleWebServer/AP_SimpleWebServer.ino b/libraries/WiFi/examples/AP_SimpleWebServer/AP_SimpleWebServer.ino new file mode 100644 index 000000000..8dc0678b8 --- /dev/null +++ b/libraries/WiFi/examples/AP_SimpleWebServer/AP_SimpleWebServer.ino @@ -0,0 +1,152 @@ +/* + WiFi Web Server LED Blink + + A simple web server that lets you blink an LED via the web. + This sketch will create a new access point (with no password). + It will then launch a new server and print out the IP address + to the Serial Monitor. From there, you can open that address in a web browser + to turn on and off the LED on pin 13. + + If the IP address of your board is yourAddress: + http://yourAddress/H turns the LED on + http://yourAddress/L turns it off + + created 25 Nov 2012 + by Tom Igoe + adapted to WiFi AP by Adafruit + */ + +#include +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) +int keyIndex = 0; // your network key index number (needed only for WEP) + +int led = LED_BUILTIN; +int status = WL_IDLE_STATUS; +WiFiServer server(80); + +void setup() { + //Initialize serial and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + Serial.println("Access Point Web Server"); + + pinMode(led, OUTPUT); // set the LED pin mode + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + WiFi.config(IPAddress(10, 0, 0, 1)); + + // print the network name (SSID); + Serial.print("Creating access point named: "); + Serial.println(ssid); + + // Create open network. Change this line if you want to create an open network: + status = WiFi.beginAP(ssid, pass); + if (status != WL_AP_LISTENING) { + Serial.println("Creating access point failed"); + // don't continue + while (true); + } + + // start the web server on port 80 + server.begin(); + + // you're connected now, so print out the status + printWiFiStatus(); +} + + +void loop() { + // compare the previous status to the current status + if (status != WiFi.status()) { + // it has changed update the variable + status = WiFi.status(); + + if (status == WL_AP_CONNECTED) { + // a device has connected to the AP + Serial.println("Device connected to AP"); + } else { + // a device has disconnected from the AP, and we are back in listening mode + Serial.println("Device disconnected from AP"); + } + } + + WiFiClient client = server.accept(); // 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 + delayMicroseconds(10); // This is required for the Arduino Nano RP2040 Connect - otherwise it will loop so fast that SPI will never be served. + 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 to 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: + 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("Click here turn the LED on
"); + client.print("Click here turn the LED off
"); + + // The HTTP response ends with another blank line: + client.println(); + // 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 /H" or "GET /L": + if (currentLine.endsWith("GET /H")) { + digitalWrite(led, HIGH); // GET /H turns the LED on + } + if (currentLine.endsWith("GET /L")) { + digitalWrite(led, LOW); // GET /L turns the LED off + } + } + } + // close the connection: + client.stop(); + Serial.println("client disconnected"); + } +} + +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 where to go in a browser: + Serial.print("To see this page in action, open a browser to http://"); + Serial.println(ip); + +} diff --git a/libraries/WiFi/examples/AP_SimpleWebServer/arduino_secrets.h b/libraries/WiFi/examples/AP_SimpleWebServer/arduino_secrets.h new file mode 100644 index 000000000..493b719ca --- /dev/null +++ b/libraries/WiFi/examples/AP_SimpleWebServer/arduino_secrets.h @@ -0,0 +1,3 @@ +// Both SSID and password must be 8 characters or longer +#define SECRET_SSID "" +#define SECRET_PASS "" diff --git a/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino b/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino new file mode 100644 index 000000000..5fe110116 --- /dev/null +++ b/libraries/WiFi/examples/SimpleWebServerWiFi/SimpleWebServerWiFi.ino @@ -0,0 +1,130 @@ +/* + WiFi Web Server LED Blink + + A simple web server that lets you blink an LED via the web. + This sketch will print the IP address of your WiFi module (once connected) + to the Serial Monitor. From there, you can open that address in a web browser + to turn on and off the LED on pin 9. + + If the IP address of your board is yourAddress: + http://yourAddress/H turns the LED on + http://yourAddress/L turns it off + + This example is written for a network using WPA encryption. For + WEP or WPA, change the WiFi.begin() call accordingly. + + Circuit: + * Board with WiFi + * LED attached to pin 9 + + created 25 Nov 2012 + by Tom Igoe + */ + +#include + +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) +int keyIndex = 0; // your network key index number (needed only for WEP) + +int status = WL_IDLE_STATUS; +WiFiServer server(80); + +void setup() { + Serial.begin(9600); // initialize serial communication + pinMode(LED_BUILTIN, OUTPUT); // set the LED pin mode + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + // 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 3 seconds for connection: + delay(3000); + } + server.begin(); // start the web server on port 80 + printWifiStatus(); // you're connected now, so print out the status +} + + +void loop() { + WiFiClient client = server.accept(); // 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 to 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: + 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("Click here turn the LED on
"); + client.print("Click here turn the LED off
"); + + // The HTTP response ends with another blank line: + client.println(); + // 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 /H" or "GET /L": + if (currentLine.endsWith("GET /H")) { + digitalWrite(LED_BUILTIN, HIGH); // GET /H turns the LED on + } + if (currentLine.endsWith("GET /L")) { + digitalWrite(LED_BUILTIN, LOW); // GET /L turns the LED off + } + } + } + // close the connection: + client.stop(); + Serial.println("client disconnected"); + } +} + +void printWifiStatus() { + // print the SSID of the network you're attached to: + Serial.print("SSID: "); + Serial.println(WiFi.SSID()); + + // print your board'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"); + // print where to go in a browser: + Serial.print("To see this page in action, open a browser to http://"); + Serial.println(ip); +} diff --git a/libraries/WiFi/examples/SimpleWebServerWiFi/arduino_secrets.h b/libraries/WiFi/examples/SimpleWebServerWiFi/arduino_secrets.h new file mode 100644 index 000000000..0c9fdd556 --- /dev/null +++ b/libraries/WiFi/examples/SimpleWebServerWiFi/arduino_secrets.h @@ -0,0 +1,2 @@ +#define SECRET_SSID "" +#define SECRET_PASS "" diff --git a/libraries/WiFi/examples/WiFiAdvancedChatServer/WiFiAdvancedChatServer.ino b/libraries/WiFi/examples/WiFiAdvancedChatServer/WiFiAdvancedChatServer.ino new file mode 100644 index 000000000..4d09fdab2 --- /dev/null +++ b/libraries/WiFi/examples/WiFiAdvancedChatServer/WiFiAdvancedChatServer.ino @@ -0,0 +1,101 @@ +/* + Advanced WiFi Chat Server + + A more advanced server that distributes any incoming messages + to all connected clients but the client the message comes from. + To use, telnet to your device's IP address and type. + + Circuit: + * Board with WiFi + + */ + +#include + +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) + +int status = WL_IDLE_STATUS; + +// telnet defaults to port 23 +WiFiServer server(23); + +WiFiClient clients[8]; + +void setup() { + //Initialize serial and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + // attempt to connect to WiFi network: + while (status != WL_CONNECTED) { + Serial.print("Attempting to connect to SSID: "); + Serial.println(ssid); + // Connect to WPA/WPA2 network. Change this line if using open network: + status = WiFi.begin(ssid, pass); + + // wait 3 seconds for connection: + delay(3000); + } + + // start the server: + server.begin(); + + Serial.print("Chat server address:"); + Serial.println(WiFi.localIP()); +} + +void loop() { + // check for any new client connecting, and say hello (before any incoming data) + WiFiClient newClient = server.accept(); + if (newClient) { + for (byte i=0; i < 8; i++) { + if (!clients[i]) { + Serial.print("We have a new client #"); + Serial.println(i); + newClient.print("Hello, client number: "); + newClient.println(i); + // Once we "accept", the client is no longer tracked by WiFiServer + // so we must store it into our list of clients + clients[i] = newClient; + break; + } + } + } + + // check for incoming data from all clients + for (byte i=0; i < 8; i++) { + if (clients[i] && clients[i].available() > 0) { + // read bytes from a client + byte buffer[80]; + int count = clients[i].read(buffer, 80); + // write the bytes to all other connected clients + for (byte j=0; j < 8; j++) { + if (j != i && clients[j].connected()) { + clients[j].write(buffer, count); + } + } + } + } + + // stop any clients which disconnect + for (byte i=0; i < 8; i++) { + if (clients[i] && !clients[i].connected()) { + Serial.print("disconnect client #"); + Serial.println(i); + clients[i].stop(); + } + } + +} diff --git a/libraries/WiFi/examples/WiFiAdvancedChatServer/arduino_secrets.h b/libraries/WiFi/examples/WiFiAdvancedChatServer/arduino_secrets.h new file mode 100644 index 000000000..0c9fdd556 --- /dev/null +++ b/libraries/WiFi/examples/WiFiAdvancedChatServer/arduino_secrets.h @@ -0,0 +1,2 @@ +#define SECRET_SSID "" +#define SECRET_PASS "" diff --git a/libraries/WiFi/examples/WiFiSSLClient/WiFiSSLClient.ino b/libraries/WiFi/examples/WiFiSSLClient/WiFiSSLClient.ino new file mode 100644 index 000000000..be1875f84 --- /dev/null +++ b/libraries/WiFi/examples/WiFiSSLClient/WiFiSSLClient.ino @@ -0,0 +1,106 @@ +/* +This example creates a client object that connects and transfers +data using always SSL. + +It is compatible with the methods normally related to plain +connections, like client.connect(host, port). + +Written by Arturo Guadalupi +last revision November 2015 + +*/ + +#include + +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) +int keyIndex = 0; // your network key index number (needed only for WEP) + +int status = WL_IDLE_STATUS; +// if you don't want to use DNS (and reduce your sketch size) +// use the numeric IP instead of the name for the server: +//IPAddress server(74,125,232,128); // numeric IP for Google (no DNS) +char server[] = "www.google.com"; // name address for Google (using DNS) + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 80 is default for HTTP): +WiFiSSLClient client; + +void setup() { + //Initialize serial and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + // attempt to connect to WiFi network: + while (status != WL_CONNECTED) { + Serial.print("Attempting to connect to SSID: "); + Serial.println(ssid); + // Connect to WPA/WPA2 network. Change this line if using open network: + status = WiFi.begin(ssid, pass); + + // wait 3 seconds for connection: + delay(3000); + } + Serial.println("Connected to WiFi"); + printWiFiStatus(); + + Serial.println("\nStarting connection to server..."); + // if you get a connection, report back via serial: + if (client.connect(server, 443)) { + Serial.println("connected to server"); + // Make a HTTP request: + client.println("GET /search?q=arduino HTTP/1.1"); + client.println("Host: www.google.com"); + client.println("Connection: close"); + client.println(); + } +} + +void loop() { + // if there are incoming bytes available + // from the server, read them and print them: + while (client.available()) { + char c = client.read(); + Serial.write(c); + } + + // if the server's disconnected, stop the client: + if (!client.connected()) { + Serial.println(); + Serial.println("disconnecting from server."); + client.stop(); + + // do nothing forevermore: + while (true); + } +} + + +void printWiFiStatus() { + // print the SSID of the network you're attached to: + Serial.print("SSID: "); + Serial.println(WiFi.SSID()); + + // print your board'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"); +} diff --git a/libraries/WiFi/examples/WiFiSSLClient/arduino_secrets.h b/libraries/WiFi/examples/WiFiSSLClient/arduino_secrets.h new file mode 100644 index 000000000..0c9fdd556 --- /dev/null +++ b/libraries/WiFi/examples/WiFiSSLClient/arduino_secrets.h @@ -0,0 +1,2 @@ +#define SECRET_SSID "" +#define SECRET_PASS "" diff --git a/libraries/WiFi/examples/WiFiUdpNtpClient/WiFiUdpNtpClient.ino b/libraries/WiFi/examples/WiFiUdpNtpClient/WiFiUdpNtpClient.ino new file mode 100644 index 000000000..2c799a442 --- /dev/null +++ b/libraries/WiFi/examples/WiFiUdpNtpClient/WiFiUdpNtpClient.ino @@ -0,0 +1,166 @@ +/* + Udp NTP Client + + Get the time from a Network Time Protocol (NTP) time server + Demonstrates use of UDP sendPacket and ReceivePacket + For more on NTP time servers and the messages needed to communicate with them, + see http://en.wikipedia.org/wiki/Network_Time_Protocol + + created 4 Sep 2010 + by Michael Margolis + modified 9 Apr 2012 + by Tom Igoe + + This code is in the public domain. + + */ + +#include + +int status = WL_IDLE_STATUS; +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) +int keyIndex = 0; // your network key index number (needed only for WEP) + +unsigned int localPort = 2390; // local port to listen for UDP packets + +IPAddress timeServer(162, 159, 200, 123); // pool.ntp.org NTP server + +const int NTP_PACKET_SIZE = 48; // NTP timestamp is in the first 48 bytes of the message + +byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming and outgoing packets + +// A UDP instance to let us send and receive packets over UDP +WiFiUDP Udp; + +void setup() { + // Open serial communications and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + // attempt to connect to WiFi network: + while (status != WL_CONNECTED) { + Serial.print("Attempting to connect to SSID: "); + Serial.println(ssid); + // Connect to WPA/WPA2 network. Change this line if using open network: + status = WiFi.begin(ssid, pass); + + // wait 3 seconds for connection: + delay(3000); + } + + Serial.println("Connected to WiFi"); + printWifiStatus(); + + Serial.println("\nStarting connection to server..."); + Udp.begin(localPort); +} + +void loop() { + sendNTPpacket(timeServer); // send an NTP packet to a time server + // wait to see if a reply is available + delay(1000); + if (Udp.parsePacket()) { + Serial.println("packet received"); + // We've received a packet, read the data from it + Udp.read(packetBuffer, NTP_PACKET_SIZE); // read the packet into the buffer + + //the timestamp starts at byte 40 of the received packet and is four bytes, + // or two words, long. First, extract the two words: + + unsigned long highWord = word(packetBuffer[40], packetBuffer[41]); + unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]); + // combine the four bytes (two words) into a long integer + // this is NTP time (seconds since Jan 1 1900): + unsigned long secsSince1900 = highWord << 16 | lowWord; + Serial.print("Seconds since Jan 1 1900 = "); + Serial.println(secsSince1900); + + // now convert NTP time into everyday time: + Serial.print("Unix time = "); + // Unix time starts on Jan 1 1970. In seconds, that's 2208988800: + const unsigned long seventyYears = 2208988800UL; + // subtract seventy years: + unsigned long epoch = secsSince1900 - seventyYears; + // print Unix time: + Serial.println(epoch); + + + // print the hour, minute and second: + Serial.print("The UTC time is "); // UTC is the time at Greenwich Meridian (GMT) + Serial.print((epoch % 86400L) / 3600); // print the hour (86400 equals secs per day) + Serial.print(':'); + if (((epoch % 3600) / 60) < 10) { + // In the first 10 minutes of each hour, we'll want a leading '0' + Serial.print('0'); + } + Serial.print((epoch % 3600) / 60); // print the minute (3600 equals secs per minute) + Serial.print(':'); + if ((epoch % 60) < 10) { + // In the first 10 seconds of each minute, we'll want a leading '0' + Serial.print('0'); + } + Serial.println(epoch % 60); // print the second + } + // wait ten seconds before asking for the time again + delay(10000); +} + +// send an NTP request to the time server at the given address +unsigned long sendNTPpacket(IPAddress& address) { + //Serial.println("1"); + // set all bytes in the buffer to 0 + memset(packetBuffer, 0, NTP_PACKET_SIZE); + // Initialize values needed to form NTP request + // (see URL above for details on the packets) + //Serial.println("2"); + packetBuffer[0] = 0b11100011; // LI, Version, Mode + packetBuffer[1] = 0; // Stratum, or type of clock + packetBuffer[2] = 6; // Polling Interval + packetBuffer[3] = 0xEC; // Peer Clock Precision + // 8 bytes of zero for Root Delay & Root Dispersion + packetBuffer[12] = 49; + packetBuffer[13] = 0x4E; + packetBuffer[14] = 49; + packetBuffer[15] = 52; + + //Serial.println("3"); + + // all NTP fields have been given values, now + // you can send a packet requesting a timestamp: + Udp.beginPacket(address, 123); //NTP requests are to port 123 + //Serial.println("4"); + Udp.write(packetBuffer, NTP_PACKET_SIZE); + //Serial.println("5"); + Udp.endPacket(); + //Serial.println("6"); +} + + +void printWifiStatus() { + // print the SSID of the network you're attached to: + Serial.print("SSID: "); + Serial.println(WiFi.SSID()); + + // print your board'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"); +} diff --git a/libraries/WiFi/examples/WiFiUdpNtpClient/arduino_secrets.h b/libraries/WiFi/examples/WiFiUdpNtpClient/arduino_secrets.h new file mode 100644 index 000000000..0c9fdd556 --- /dev/null +++ b/libraries/WiFi/examples/WiFiUdpNtpClient/arduino_secrets.h @@ -0,0 +1,2 @@ +#define SECRET_SSID "" +#define SECRET_PASS "" diff --git a/libraries/WiFi/examples/WiFiUdpSendReceiveString/WiFiUdpSendReceiveString.ino b/libraries/WiFi/examples/WiFiUdpSendReceiveString/WiFiUdpSendReceiveString.ino new file mode 100644 index 000000000..9a42aad4c --- /dev/null +++ b/libraries/WiFi/examples/WiFiUdpSendReceiveString/WiFiUdpSendReceiveString.ino @@ -0,0 +1,105 @@ +/* + WiFi UDP Send and Receive String + + This sketch waits for a UDP packet on localPort using the WiFi module. + When a packet is received an Acknowledge packet is sent to the client on port remotePort + + created 30 December 2012 + by dlf (Metodo2 srl) + + */ + + +#include + +int status = WL_IDLE_STATUS; +#include "arduino_secrets.h" +///////please enter your sensitive data in the Secret tab/arduino_secrets.h +char ssid[] = SECRET_SSID; // your network SSID (name) +char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP) +int keyIndex = 0; // your network key index number (needed only for WEP) + +unsigned int localPort = 2390; // local port to listen on + +char packetBuffer[256]; //buffer to hold incoming packet +char ReplyBuffer[] = "acknowledged"; // a string to send back + +WiFiUDP Udp; + +void setup() { + //Initialize serial and wait for port to open: + Serial.begin(9600); + while (!Serial) { + ; // wait for serial port to connect. Needed for native USB port only + } + + // check for the WiFi module: + if (WiFi.status() == WL_NO_MODULE) { + Serial.println("Communication with WiFi module failed!"); + // don't continue + while (true); + } + + // attempt to connect to WiFi network: + while (status != WL_CONNECTED) { + Serial.print("Attempting to connect to SSID: "); + Serial.println(ssid); + // Connect to WPA/WPA2 network. Change this line if using open network: + status = WiFi.begin(ssid, pass); + + // wait 3 seconds for connection: + delay(3000); + } + Serial.println("Connected to WiFi"); + printWifiStatus(); + + Serial.println("\nStarting connection to server..."); + // if you get a connection, report back via serial: + Udp.begin(localPort); +} + +void loop() { + + // if there's data available, read a packet + int packetSize = Udp.parsePacket(); + if (packetSize) { + Serial.print("Received packet of size "); + Serial.println(packetSize); + Serial.print("From "); + IPAddress remoteIp = Udp.remoteIP(); + Serial.print(remoteIp); + Serial.print(", port "); + Serial.println(Udp.remotePort()); + + // read the packet into packetBuffer + int len = Udp.read(packetBuffer, 255); + if (len > 0) { + packetBuffer[len] = 0; + } + Serial.println("Contents:"); + Serial.println(packetBuffer); + + // send a reply, to the IP address and port that sent us the packet we received + Udp.beginPacket(Udp.remoteIP(), Udp.remotePort()); + Udp.write(ReplyBuffer); + Udp.endPacket(); + } +} + + +void printWifiStatus() { + // print the SSID of the network you're attached to: + Serial.print("SSID: "); + Serial.println(WiFi.SSID()); + + // print your board'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"); +} diff --git a/libraries/WiFi/examples/WiFiUdpSendReceiveString/arduino_secrets.h b/libraries/WiFi/examples/WiFiUdpSendReceiveString/arduino_secrets.h new file mode 100644 index 000000000..0c9fdd556 --- /dev/null +++ b/libraries/WiFi/examples/WiFiUdpSendReceiveString/arduino_secrets.h @@ -0,0 +1,2 @@ +#define SECRET_SSID "" +#define SECRET_PASS ""