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arduino-cli/libraries/WiFiManager/examples/Advanced/Advanced.ino

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+/**
+ * WiFiManager advanced demo, contains advanced configurartion options
+ * Implements TRIGGEN_PIN button press, press for ondemand configportal, hold for 3 seconds for reset settings.
+ */
+#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
+
+#define TRIGGER_PIN 0
+
+// wifimanager can run in a blocking mode or a non blocking mode
+// Be sure to know how to process loops with no delay() if using non blocking
+bool wm_nonblocking = false; // change to true to use non blocking
+
+WiFiManager wm; // global wm instance
+WiFiManagerParameter custom_field; // global param ( for non blocking w params )
+
+void setup() {
+  WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP  
+  Serial.begin(115200);
+  Serial.setDebugOutput(true);  
+  delay(3000);
+  Serial.println("\n Starting");
+
+  pinMode(TRIGGER_PIN, INPUT);
+  
+  // wm.resetSettings(); // wipe settings
+
+  if(wm_nonblocking) wm.setConfigPortalBlocking(false);
+
+  // add a custom input field
+  int customFieldLength = 40;
+
+
+  // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\"");
+  
+  // test custom html input type(checkbox)
+  // new (&custom_field) WiFiManagerParameter("customfieldid", "Custom Field Label", "Custom Field Value", customFieldLength,"placeholder=\"Custom Field Placeholder\" type=\"checkbox\""); // custom html type
+  
+  // test custom html(radio)
+  const char* custom_radio_str = "<br/><label for='customfieldid'>Custom Field Label</label><input type='radio' name='customfieldid' value='1' checked> One<br><input type='radio' name='customfieldid' value='2'> Two<br><input type='radio' name='customfieldid' value='3'> Three";
+  new (&custom_field) WiFiManagerParameter(custom_radio_str); // custom html input
+  
+  wm.addParameter(&custom_field);
+  wm.setSaveParamsCallback(saveParamCallback);
+
+  // custom menu via array or vector
+  // 
+  // menu tokens, "wifi","wifinoscan","info","param","close","sep","erase","restart","exit" (sep is seperator) (if param is in menu, params will not show up in wifi page!)
+  // const char* menu[] = {"wifi","info","param","sep","restart","exit"}; 
+  // wm.setMenu(menu,6);
+  std::vector<const char *> menu = {"wifi","info","param","sep","restart","exit"};
+  wm.setMenu(menu);
+
+  // set dark theme
+  wm.setClass("invert");
+
+
+  //set static ip
+  // wm.setSTAStaticIPConfig(IPAddress(10,0,1,99), IPAddress(10,0,1,1), IPAddress(255,255,255,0)); // set static ip,gw,sn
+  // wm.setShowStaticFields(true); // force show static ip fields
+  // wm.setShowDnsFields(true);    // force show dns field always
+
+  // wm.setConnectTimeout(20); // how long to try to connect for before continuing
+  wm.setConfigPortalTimeout(30); // auto close configportal after n seconds
+  // wm.setCaptivePortalEnable(false); // disable captive portal redirection
+  // wm.setAPClientCheck(true); // avoid timeout if client connected to softap
+
+  // wifi scan settings
+  // wm.setRemoveDuplicateAPs(false); // do not remove duplicate ap names (true)
+  // wm.setMinimumSignalQuality(20);  // set min RSSI (percentage) to show in scans, null = 8%
+  // wm.setShowInfoErase(false);      // do not show erase button on info page
+  // wm.setScanDispPerc(true);       // show RSSI as percentage not graph icons
+  
+  // wm.setBreakAfterConfig(true);   // always exit configportal even if wifi save fails
+
+  bool res;
+  // res = wm.autoConnect(); // auto generated AP name from chipid
+  // res = wm.autoConnect("AutoConnectAP"); // anonymous ap
+  res = wm.autoConnect("AutoConnectAP","password"); // password protected ap
+
+  if(!res) {
+    Serial.println("Failed to connect or hit timeout");
+    // ESP.restart();
+  } 
+  else {
+    //if you get here you have connected to the WiFi    
+    Serial.println("connected...yeey :)");
+  }
+}
+
+void checkButton(){
+  // check for button press
+  if ( digitalRead(TRIGGER_PIN) == LOW ) {
+    // poor mans debounce/press-hold, code not ideal for production
+    delay(50);
+    if( digitalRead(TRIGGER_PIN) == LOW ){
+      Serial.println("Button Pressed");
+      // still holding button for 3000 ms, reset settings, code not ideaa for production
+      delay(3000); // reset delay hold
+      if( digitalRead(TRIGGER_PIN) == LOW ){
+        Serial.println("Button Held");
+        Serial.println("Erasing Config, restarting");
+        wm.resetSettings();
+        ESP.restart();
+      }
+      
+      // start portal w delay
+      Serial.println("Starting config portal");
+      wm.setConfigPortalTimeout(120);
+      
+      if (!wm.startConfigPortal("OnDemandAP","password")) {
+        Serial.println("failed to connect or hit timeout");
+        delay(3000);
+        // ESP.restart();
+      } else {
+        //if you get here you have connected to the WiFi
+        Serial.println("connected...yeey :)");
+      }
+    }
+  }
+}
+
+
+String getParam(String name){
+  //read parameter from server, for customhmtl input
+  String value;
+  if(wm.server->hasArg(name)) {
+    value = wm.server->arg(name);
+  }
+  return value;
+}
+
+void saveParamCallback(){
+  Serial.println("[CALLBACK] saveParamCallback fired");
+  Serial.println("PARAM customfieldid = " + getParam("customfieldid"));
+}
+
+void loop() {
+  if(wm_nonblocking) wm.process(); // avoid delays() in loop when non-blocking and other long running code  
+  checkButton();
+  // put your main code here, to run repeatedly:
+}