137 lines
4.2 KiB
C++
137 lines
4.2 KiB
C++
|
|
/*
|
|
Web client
|
|
|
|
This sketch connects to a website (wifitest.adafruit.com/testwifi/index.html)
|
|
using the WiFi module.
|
|
|
|
This example is written for a network using WPA encryption. For
|
|
WEP or WPA, change the Wifi.begin() call accordingly.
|
|
|
|
This example is written for a network using WPA encryption. For
|
|
WEP or WPA, change the Wifi.begin() call accordingly.
|
|
|
|
Circuit:
|
|
* Board with NINA module (Arduino MKR WiFi 1010, MKR VIDOR 4000 and UNO WiFi Rev.2)
|
|
|
|
created 13 July 2010
|
|
by dlf (Metodo2 srl)
|
|
modified 31 May 2012
|
|
by Tom Igoe
|
|
*/
|
|
|
|
|
|
#include <SPI.h>
|
|
#include <WiFiNINA.h>
|
|
|
|
// Configure the pins used for the ESP32 connection
|
|
#if !defined(SPIWIFI_SS) // if the wifi definition isnt in the board variant
|
|
// Don't change the names of these #define's! they match the variant ones
|
|
#define SPIWIFI SPI
|
|
#define SPIWIFI_SS 10 // Chip select pin
|
|
#define SPIWIFI_ACK 7 // a.k.a BUSY or READY pin
|
|
#define ESP32_RESETN 5 // Reset pin
|
|
#define ESP32_GPIO0 -1 // Not connected
|
|
#endif
|
|
|
|
|
|
#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[] = "wifitest.adafruit.com"; // name address for adafruit test
|
|
char path[] = "/testwifi/index.html";
|
|
|
|
// 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):
|
|
WiFiClient 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:
|
|
WiFi.setPins(SPIWIFI_SS, SPIWIFI_ACK, ESP32_RESETN, ESP32_GPIO0, &SPIWIFI);
|
|
while (WiFi.status() == WL_NO_MODULE) {
|
|
Serial.println("Communication with WiFi module failed!");
|
|
// don't continue
|
|
delay(1000);
|
|
}
|
|
|
|
String fv = WiFi.firmwareVersion();
|
|
if (fv < "1.0.0") {
|
|
Serial.println("Please upgrade the firmware");
|
|
}
|
|
Serial.print("Found firmware "); Serial.println(fv);
|
|
|
|
// attempt to connect to Wifi network:
|
|
Serial.print("Attempting to connect to SSID: ");
|
|
Serial.println(ssid);
|
|
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
|
|
do {
|
|
status = WiFi.begin(ssid, pass);
|
|
delay(100); // wait until connection is ready!
|
|
} while (status != WL_CONNECTED);
|
|
|
|
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, 80)) {
|
|
Serial.println("connected to server");
|
|
// Make a HTTP request:
|
|
client.print("GET "); client.print(path); client.println(" HTTP/1.1");
|
|
client.print("Host: "); client.println(server);
|
|
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");
|
|
}
|