IotWebConf 09 Custom Connection

/** * IotWebConf09CustomConnection.ino -- IotWebConf is an ESP8266/ESP32 * non blocking WiFi/AP web configuration library for Arduino. * https://github.com/prampec/IotWebConf * * Copyright (C) 2018 Balazs Kelemen * * This software may be modified and distributed under the terms * of the MIT license. See the LICENSE file for details. */ /** * Example: Custom connection * Description: * This example is for advanced users only! * In this example custom connection handler methods are defined * to override the default connecting behavior. * Also, three custom parameters are introduced, that are used * at the connection. * (See previous examples for more details!) * * Hardware setup for this example: * - An LED is attached to LED_BUILTIN pin with setup On=LOW. * - [Optional] A push button is attached to pin D2, the other leg of the * button should be attached to GND. */ #include // -- Initial name of the Thing. Used e.g. as SSID of the own Access Point. const char thingName[] = "testThing"; // -- Initial password to connect to the Thing, when it creates an own Access Point. const char wifiInitialApPassword[] = "smrtTHNG8266"; #define STRING_LEN 128 #define NUMBER_LEN 32 // -- Configuration specific key. The value should be modified if config structure was changed. #define CONFIG_VERSION "dem9" // -- When CONFIG_PIN is pulled to ground on startup, the Thing will use the initial // password to buld an AP. (E.g. in case of lost password) #define CONFIG_PIN 2 // -- Status indicator pin. // First it will light up (kept LOW), on Wifi connection it will blink, // when connected to the Wifi it will turn off (kept HIGH). #define STATUS_PIN LED_BUILTIN // -- Callback method declarations. void configSaved(); boolean formValidator(); boolean connectAp(const char* apName, const char* password); void connectWifi(const char* ssid, const char* password); DNSServer dnsServer; WebServer server(80); char ipAddressValue[STRING_LEN]; char gatewayValue[STRING_LEN]; char netmaskValue[STRING_LEN]; IotWebConf iotWebConf(thingName, &dnsServer, &server, wifiInitialApPassword, CONFIG_VERSION); IotWebConfParameter ipAddressParam = IotWebConfParameter("IP address", "ipAddress", ipAddressValue, STRING_LEN, "text", NULL, "192.168.3.222"); IotWebConfParameter gatewayParam = IotWebConfParameter("Gateway", "gateway", gatewayValue, STRING_LEN, "text", NULL, "192.168.3.0"); IotWebConfParameter netmaskParam = IotWebConfParameter("Subnet mask", "netmask", netmaskValue, STRING_LEN, "text", NULL, "255.255.255.0"); IPAddress ipAddress; IPAddress gateway; IPAddress netmask; void setup() { Serial.begin(115200); Serial.println(); Serial.println("Starting up..."); iotWebConf.setStatusPin(STATUS_PIN); iotWebConf.setConfigPin(CONFIG_PIN); iotWebConf.addParameter(&ipAddressParam); iotWebConf.addParameter(&gatewayParam); iotWebConf.addParameter(&netmaskParam); iotWebConf.setConfigSavedCallback(&configSaved); iotWebConf.setFormValidator(&formValidator); iotWebConf.setApConnectionHandler(&connectAp); iotWebConf.setWifiConnectionHandler(&connectWifi); // -- Initializing the configuration. boolean validConfig = iotWebConf.init(); // -- Set up required URL handlers on the web server. server.on("/", handleRoot); server.on("/config", []{ iotWebConf.handleConfig(); }); server.onNotFound([](){ iotWebConf.handleNotFound(); }); Serial.println("Ready."); } void loop() { // -- doLoop should be called as frequently as possible. iotWebConf.doLoop(); } /** * Handle web requests to "/" path. */ void handleRoot() { // -- Let IotWebConf test and handle captive portal requests. if (iotWebConf.handleCaptivePortal()) { // -- Captive portal request were already served. return; } String s = ""; s += "IotWebConf 09 Custom ConnectionHello world!"; s += "

IP address: "; s += ipAddressValue; s += "

"; s += "Go to configure page to change values."; s += "\n"; server.send(200, "text/html", s); } void configSaved() { Serial.println("Configuration was updated."); } boolean formValidator() { Serial.println("Validating form."); boolean valid = true; if (!ipAddress.fromString(server.arg(ipAddressParam.getId()))) { ipAddressParam.errorMessage = "Please provide a valid IP address!"; valid = false; } if (!netmask.fromString(server.arg(netmaskParam.getId()))) { netmaskParam.errorMessage = "Please provide a valid netmask!"; valid = false; } if (!gateway.fromString(server.arg(gatewayParam.getId()))) { gatewayParam.errorMessage = "Please provide a valid gateway address!"; valid = false; } return valid; } boolean connectAp(const char* apName, const char* password) { // -- Custom AP settings return WiFi.softAP(apName, password, 4); } void connectWifi(const char* ssid, const char* password) { ipAddress.fromString(String(ipAddressValue)); netmask.fromString(String(netmaskValue)); gateway.fromString(String(gatewayValue)); if (!WiFi.config(ipAddress, gateway, netmask)) { Serial.println("STA Failed to configure"); } Serial.print("ip: "); Serial.println(ipAddress); Serial.print("gw: "); Serial.println(gateway); Serial.print("net: "); Serial.println(netmask); WiFi.begin(ssid, password); }