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Commit 9f0dc38

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Merge pull request #395 from andreagilardoni/ping
Add WiFi.ping()
2 parents 9006eab + 3a81b22 commit 9f0dc38

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/*
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Web ICMP Ping
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This sketch pings a device based on the IP address or the hostname
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using the WiFi module. By default the attempt is performed 5 times, but can
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be changed to max. 255
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It requires at least version 0.5.0 of USB Wifi bridge firmware and WiFiS3 library.
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This example is written for a network using WPA encryption. For
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WEP or WPA, change the WiFi.begin() call accordingly.
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created 14 February 2024
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by paulvha
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*/
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#include "WiFiS3.h"
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#include "arduino_secrets.h"
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///////please enter your sensitive data in the Secret tab/arduino_secrets.h
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char ssid[] = SECRET_SSID; // your network SSID (name)
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char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP)
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int keyIndex = 0; // your network key index number (needed only for WEP)
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int status = WL_IDLE_STATUS;
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/* -------------------------------------------------------------------------- */
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void setup() {
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/* -------------------------------------------------------------------------- */
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//Initialize serial and wait for port to open:
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Serial.begin(115200);
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while (!Serial) {
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; // wait for serial port to connect. Needed for native USB port only
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}
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// check for the WiFi module:
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if (WiFi.status() == WL_NO_MODULE) {
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Serial.println("Communication with WiFi module failed.");
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// don't continue
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while (true);
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}
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// attempt to connect to WiFi network:
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while (status != WL_CONNECTED) {
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Serial.print("Attempting to connect to SSID: ");
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Serial.println(ssid);
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// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
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status = WiFi.begin(ssid, pass);
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// wait 10 seconds for connection:
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delay(10000);
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}
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printWifiStatus();
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}
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/* -------------------------------------------------------------------------- */
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void loop() {
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/* -------------------------------------------------------------------------- */
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// Ping IP
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const IPAddress remote_ip(140,82,121,4);
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Serial.print("Trying to ping github.com on IP: ");
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Serial.println(remote_ip);
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// using default ping count of 1
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int res = WiFi.ping(remote_ip);
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if (res > 0) {
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Serial.print("Ping response time: ");
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Serial.print(res);
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Serial.println(" ms");
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}
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else {
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Serial.println("Timeout on IP!");
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Serial.println("Make sure your WiFi firmware version is greater than 0.5.0");
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}
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// Ping Host
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const char* remote_host = "www.google.com";
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Serial.print("Trying to ping host: ");
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Serial.println(remote_host);
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// setting ttl to 128 and ping count to 10
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int res1 = WiFi.ping(remote_host, 128, 10);
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if (res1 > 0) {
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Serial.print("Ping average response time: ");
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Serial.print(res1);
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Serial.println(" ms");
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}
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else {
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Serial.println("Timeout on host!");
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Serial.println("Make sure your WiFi firmware version is greater than 0.5.0");
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}
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Serial.println();
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delay(1000);
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}
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/* -------------------------------------------------------------------------- */
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void printWifiStatus() {
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/* -------------------------------------------------------------------------- */
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// print the SSID of the network you're attached to:
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Serial.print("SSID: ");
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Serial.println(WiFi.SSID());
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// print your board's IP address:
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IPAddress ip = WiFi.localIP();
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Serial.print("IP Address: ");
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Serial.println(ip);
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// print the received signal strength:
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long rssi = WiFi.RSSI();
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Serial.print("signal strength (RSSI):");
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Serial.print(rssi);
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Serial.println(" dBm");
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}
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#define SECRET_SSID ""
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#define SECRET_PASS ""

‎libraries/WiFiS3/src/WiFi.cpp‎

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@@ -561,6 +561,33 @@ void CWifi::setTimeout(unsigned long timeout) {
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_timeout = timeout;
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}
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/* -------------------------------------------------------------------------- */
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int CWifi::ping(IPAddress ip, uint8_t ttl, uint8_t count) {
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/* -------------------------------------------------------------------------- */
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return ping(ip.toString().c_str(), ttl, count);
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}
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/* -------------------------------------------------------------------------- */
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int CWifi::ping(const String &hostname, uint8_t ttl, uint8_t count)
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/* -------------------------------------------------------------------------- */
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{
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return ping(hostname.c_str(), ttl);
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}
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/* -------------------------------------------------------------------------- */
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int CWifi::ping(const char* host, uint8_t ttl, uint8_t count) {
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/* -------------------------------------------------------------------------- */
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int ret = WL_PING_ERROR;
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modem.begin();
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/* ping timeout is 1s and interval another 1s */
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modem.timeout((count * 2000) + MODEM_TIMEOUT);
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string res = "";
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if (modem.write(string(PROMPT(_PING)), res, "%s,%s,%d,%d\r\n", CMD_WRITE(_PING), host, ttl, count)) {
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ret = atoi(res.c_str());
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}
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modem.timeout(MODEM_TIMEOUT);
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return ret;
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}
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CWifi WiFi;
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‎libraries/WiFiS3/src/WiFi.h‎

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*/
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static const char* firmwareVersion();
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/*
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* PING
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*/
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int ping(IPAddress ip, uint8_t ttl = 128, uint8_t count = 1);
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int ping(const String &hostname, uint8_t ttl = 128, uint8_t count = 1);
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int ping(const char* host, uint8_t ttl = 128, uint8_t count = 1);
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/*
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* Start WiFi connection for OPEN networks

‎libraries/WiFiS3/src/WiFiTypes.h‎

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@@ -31,4 +31,11 @@ enum wl_enc_type {
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ENC_TYPE_UNKNOWN = 255
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};
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typedef enum {
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WL_PING_DEST_UNREACHABLE = -1,
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WL_PING_TIMEOUT = -2,
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WL_PING_UNKNOWN_HOST = -3,
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WL_PING_ERROR = -4
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} wl_ping_result_t;
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#endif

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