feat(firmware): implement smart configuration for WiFi setup and connection

2025-11-24 21:02:04 +08:00
parent cc6641b526
commit d583370c6d
3 changed files with 228 additions and 50 deletions
--- a/hardware/firmware/src/smartconfig.cpp
+++ b/hardware/firmware/src/smartconfig.cpp
@@ -0,0 +1,152 @@
+#include "smartconfig.h"
+
+#include <WiFi.h>
+#include <Preferences.h>
+
+WebServer server(80);
+DNSServer dnsServer;
+Preferences preferences;
+
+IPAddress apIP(192, 168, 4, 1);
+
+bool should_reboot = false;
+bool smartconfig_done = false;
+
+const char *HTML_FORM = R"rawliteral(
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Helios Charge Point 配网</title>
+  <style>
+    :root { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #1f2a37; }
+    body { margin: 0; background: #f4f6fb; display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 16px; }
+    .card { width: min(360px, 100%); background: #fff; border-radius: 16px; padding: 24px; box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12); }
+    h2 { margin: 0 0 16px; font-size: 1.4rem; text-align: center; }
+    label { display: block; margin-bottom: 6px; font-weight: 600; }
+    input[type="text"], input[type="password"] {
+      width: 100%; padding: 12px; margin-bottom: 16px; border: 1px solid #d0d7e2; border-radius: 10px;
+      font-size: 1rem; transition: border 0.2s, box-shadow 0.2s;
+    }
+    input:focus { outline: none; border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15); }
+    input[type="submit"] {
+      width: 100%; padding: 12px; border: none; border-radius: 10px; background: #2563eb; color: #fff;
+      font-size: 1rem; font-weight: 600; cursor: pointer; transition: background 0.2s;
+    }
+    input[type="submit"]:hover { background: #1d4ed8; }
+  </style>
+</head>
+<body>
+  <div class="card">
+    <h2>配置 WiFi</h2>
+    <form action="/save" method="POST">
+      <label for="ssid">SSID</label>
+      <input type="text" id="ssid" name="ssid" required>
+      <label for="password">密码</label>
+      <input type="password" id="password" name="password" required>
+      <input type="submit" value="保存并连接">
+    </form>
+  </div>
+</body>
+</html>
+)rawliteral";
+
+void handleCaptivePortal()
+{
+  String host = server.hostHeader();
+  server.sendHeader("Location", String("http://") + apIP.toString(), true);
+  server.send(302, "text/plain", "");
+}
+
+void handleRoot()
+{
+  server.send(200, "text/html", HTML_FORM);
+}
+
+void handleSave()
+{
+  if (server.hasArg("ssid") && server.hasArg("password"))
+  {
+    String ssid = server.arg("ssid");
+    String password = server.arg("password");
+
+    Serial.printf("Received SSID: %s, PASSWORD: %s\n", ssid.c_str(), password.c_str());
+
+    // save to NVS
+    preferences.begin("wifi", false);
+    preferences.putString("ssid", ssid);
+    preferences.putString("password", password);
+    preferences.end();
+
+    String response = "<html><head><meta charset=\"UTF-8\"></head><body><h3>配置已保存，设备正在尝试连接网络...</h3></body></html>";
+    server.send(200, "text/html", response);
+
+    // flag to reboot
+    should_reboot = true;
+  }
+  else
+  {
+    server.send(400, "text/plain", "缺少 SSID 或密码");
+  }
+}
+
+void startSmartConfig(char *ssid, char *psk)
+{
+  WiFi.mode(WIFI_AP);
+  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
+  WiFi.softAP(ssid, psk);
+
+  dnsServer.start(53, "*", apIP);
+
+  server.on("/", handleRoot);
+  server.on("/save", handleSave);
+
+  server.on("/generate_204", HTTP_GET, handleCaptivePortal);        // Android
+  server.on("/ncsi.txt", HTTP_GET, handleCaptivePortal);            // Windows
+  server.on("/hotspot-detect.html", HTTP_GET, handleCaptivePortal); // iOS
+  server.onNotFound(handleCaptivePortal);
+
+  server.begin();
+  Serial.println("HTTP server started");
+}
+
+bool connectToSavedWiFi()
+{
+  preferences.begin("wifi", true);
+  String ssid = preferences.getString("ssid", "");
+  String password = preferences.getString("password", "");
+  preferences.end();
+
+  if (ssid == "")
+  {
+    Serial.println("No saved WiFi credentials");
+    return false;
+  }
+
+  Serial.printf("Connecting to SSID: %s\n", ssid.c_str());
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(ssid.c_str(), password.c_str());
+
+  unsigned long start = millis();
+  const unsigned long timeout = 15000; // 15 secs
+
+  while (WiFi.status() != WL_CONNECTED && millis() - start < timeout)
+  {
+    Serial.print(".");
+    delay(500);
+  }
+
+  if (WiFi.status() == WL_CONNECTED)
+  {
+    Serial.println("\nWiFi connected!");
+    Serial.printf("IP address: %s\n", WiFi.localIP().toString().c_str());
+    smartconfig_done = true;
+    return true;
+  }
+  else
+  {
+    Serial.println("\nWiFi connect failed.");
+    return false;
+  }
+}