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ArduinoC6/simple-wifi.
2025-03-05 08:10:50 +02:00

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#include <WiFi.h>
#include <WebServer.h>
#include <EEPROM.h>
const char* ap_ssid = "ESP32_Config";
const char* ap_password = "12345678";
WebServer server(80);
String ssid = "";
String password = "";
String static_ip = "";
String hostname = "";
void setup() {
Serial.begin(115200);
EEPROM.begin(512);
// Load saved settings
loadSettings();
// If settings are not set, enter AP mode
if (ssid == "" || password == "") {
WiFi.softAP(ap_ssid, ap_password);
Serial.println("AP Mode: Connect to the network and configure settings.");
server.on("/", handleRoot);
server.on("/save", handleSave);
server.begin();
} else {
// Connect to WiFi in client mode
WiFi.mode(WIFI_STA);
WiFi.config(IPAddress(static_ip.c_str()), IPAddress(192, 168, 1, 1), IPAddress(255, 255, 255, 0));
WiFi.begin(ssid.c_str(), password.c_str());
WiFi.setHostname(hostname.c_str());
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
Serial.print("MAC Address: ");
Serial.println(WiFi.macAddress());
}
}
void loop() {
if (WiFi.getMode() == WIFI_AP) {
server.handleClient();
}
}
void handleRoot() {
String html = "<form action='/save' method='POST'>";
html += "SSID: <input type='text' name='ssid'><br>";
html += "Password: <input type='text' name='password'><br>";
html += "Static IP: <input type='text' name='static_ip'><br>";
html += "Hostname: <input type='text' name='hostname'><br>";
html += "<input type='submit' value='Save'>";
html += "</form>";
server.send(200, "text/html", html);
}
void handleSave() {
ssid = server.arg("ssid");
password = server.arg("password");
static_ip = server.arg("static_ip");
hostname = server.arg("hostname");
saveSettings();
server.send(200, "text/html", "Settings saved. Rebooting...");
delay(2000);
ESP.restart();
}
void saveSettings() {
EEPROM.writeString(0, ssid);
EEPROM.writeString(32, password);
EEPROM.writeString(64, static_ip);
EEPROM.writeString(96, hostname);
EEPROM.commit();
}
void loadSettings() {
ssid = EEPROM.readString(0);
password = EEPROM.readString(32);
static_ip = EEPROM.readString(64);
hostname = EEPROM.readString(96);
}