158 lines
4.0 KiB
C++
158 lines
4.0 KiB
C++
//#include <DNSServer.h>
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//DNSServer dnsServer;
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//const byte DNS_PORT = 53;
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// AP mode password
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const char WiFiAPPSK[] = "";
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// Wi-Fi network to connect to (leave blank to connect to saved network, or to start in AP mode)
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const char* ssid = "";
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const char* password = "";
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#define HOSTNAME "ESP8266-" ///< Hostname. The initializeWiFi function adds the Chip ID at the end.
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#define DEBUG_WIFI 1
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WiFiMode mode = WIFI_STA; // connect to existing Wi-Fi network
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//WiFiMode mode = WIFI_AP; // act as an Access Point, creating a new Wi-Fi network
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//WiFiMode mode = WIFI_AP_STA; // act as both a client and Access Point (mesh mode)
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template <typename Generic>
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void debugPrint(Generic text) {
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if (DEBUG_WIFI) {
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Serial.print(text);
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}
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}
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template <typename Generic>
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void debugPrintln(Generic text) {
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if (DEBUG_WIFI) {
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Serial.println(text);
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}
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}
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String getWiFiJson() {
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String hostname = String(HOSTNAME);
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hostname += String(ESP.getChipId(), HEX);
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String json = "{";
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json += "\"status\":\"" + String(WiFi.status()) + "\"";
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json += ",\"localIP\":\"" + WiFi.localIP().toString() + "\"";
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json += ",\"softAPIP\":\"" + WiFi.softAPIP().toString() + "\"";
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json += ",\"hostname\":\"" + hostname + "\"";
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json += ",\"ssid\":\"" + WiFi.SSID() + "\"";
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json += ",\"rssi\":\"" + String(WiFi.RSSI()) + "\"";
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json += ",\"networks\":[";
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byte ssidCount = WiFi.scanNetworks();
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for (byte i = 0; i < ssidCount; i++) {
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if (i > 0)
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json += ",";
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json += "{\"name\":\"" + WiFi.SSID(i) + "\",\"rssi\":\"" + String(WiFi.RSSI(i)) + "\"}";
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}
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json += "]";
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json += "}";
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return json;
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}
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void initializeWiFi() {
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// Set Hostname.
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String hostname = String(HOSTNAME);
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hostname += String(ESP.getChipId(), HEX);
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WiFi.hostname(hostname);
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// Print hostname.
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Serial.println("Hostname: " + hostname);
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char hostnameChar[hostname.length() + 1];
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memset(hostnameChar, 0, hostname.length() + 1);
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for (uint8_t i = 0; i < hostname.length(); i++)
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hostnameChar[i] = hostname.charAt(i);
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// MDNS.begin(hostnameChar);
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// Add service to MDNS-SD
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// MDNS.addService("http", "tcp", 80);
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// attempt to connect; should it fail, fall back to AP mode
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// WiFi.mode(WIFI_STA);
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String stored_ssid = WiFi.SSID();
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if (ssid != NULL && password != NULL &&
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ssid != "" && password != "") {
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debugPrint("WiFi mode: ");
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debugPrintln(WIFI_STA);
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WiFi.mode(WIFI_STA);
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debugPrint("Connecting to hard-coded SSID: ");
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debugPrintln(stored_ssid);
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WiFi.begin(ssid, password);
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}
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else if (stored_ssid != NULL && stored_ssid != "") {
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debugPrint("WiFi mode: ");
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debugPrintln(WIFI_STA);
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WiFi.mode(WIFI_STA);
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debugPrint("Connecting to stored SSID: ");
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debugPrintln(stored_ssid);
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WiFi.begin();
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}
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else {
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debugPrintln("No stored SSID");
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debugPrint("Starting soft AP: ");
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debugPrintln(hostnameChar);
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WiFi.mode(WIFI_AP);
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if (WiFiAPPSK != NULL) {
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debugPrint(WiFi.softAP(hostnameChar, WiFiAPPSK) ? "ready" : "failed");
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} else {
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debugPrint(WiFi.softAP(hostnameChar) ? "ready" : "failed");
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}
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debugPrint("Connect to Wi-Fi access point: ");
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debugPrintln(hostnameChar);
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delay(500); // Without delay I've seen the IP address blank
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debugPrint("AP IP address: ");
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debugPrintln(WiFi.softAPIP());
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// dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
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// dnsServer.start(DNS_PORT, "*", WiFi.softAPIP());
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}
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webServer.on("/wifi", HTTP_POST, []() {
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String ssid = webServer.arg("ssid");
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String password = webServer.arg("password");
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char ssidChars[50];
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ssid.toCharArray(ssidChars, 50);
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char passwordChars[50];
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password.toCharArray(passwordChars, 50);
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debugPrint("Connecting to new SSID: ");
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debugPrintln(ssid);
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WiFi.begin(ssidChars, passwordChars);
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webServer.sendHeader("Location", "/wifi.htm");
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webServer.send(303);
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});
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webServer.on("/wifi", HTTP_GET, []() {
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String json = getWiFiJson();
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webServer.send(200, "application/json", json);
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});
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}
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