ESP32 WiFi MODE_STM_AP.通过via接口动态改变WiFi站点
ESP32 WiFi MODE_STM_AP.通过via接口动态改变WiFi站点
提问于 2022-06-26 17:05:43
你好，亲爱的斯塔克溢流社区，
我有以下问题。我正在做的项目是这样的。
- ESP32 with AsyncWebserver和LittleFS
- ESP32在系统启动时建立了一个软AP (MODE_APSTA)，包括STM (Station )，
- 作为web接口可以用于搜索范围内的网络。一旦您决定了一个网络，在web接口中选择它，并为SSID输入相应的密码。
- 通过Ajax请求将密码发送到ESP32 web服务器。web服务器将数据保存在配置文件中并重新启动。如果ESP在启动时确认配置文件是可用的，它应该从那里读取SSID和密码并连接到网络。
- 来自ESP的软AP应该保持位置并可用。
。
现在是问题: ESP重新启动，找到文件，并应该连接到访问点。但事实并非如此。我不知道问题出在哪里。我已经绝望两天了。
关于社会人士的意见，我会非常感激:)
#include <FS.h>
#include <LittleFS.h>
#include <WiFi.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <ArduinoJson.h>
#include <WiFiMulti.h>
const char* soft_ap_ssid = "WeiFeiFugger";
const char* soft_ap_password = "1234567890";
DynamicJsonDocument output(1024);
String ap_config;
String pass_config;
AsyncWebServer server(80);
WiFiMulti wifiMulti;
void WiFiEvent(WiFiEvent_t event) {
Serial.printf("[WiFi-event] event: %d\n", event);
switch (event) {
case SYSTEM_EVENT_WIFI_READY:
Serial.println("WiFi interface ready");
break;
case SYSTEM_EVENT_SCAN_DONE:
Serial.println("Completed scan for access points");
break;
case SYSTEM_EVENT_STA_START:
Serial.println("WiFi client started");
break;
case SYSTEM_EVENT_STA_STOP:
Serial.println("WiFi clients stopped");
break;
case SYSTEM_EVENT_STA_CONNECTED:
Serial.println("Connected to access point");
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
Serial.println("Disconnected from WiFi access point");
break;
case SYSTEM_EVENT_STA_AUTHMODE_CHANGE:
Serial.println("Authentication mode of access point has changed");
break;
case SYSTEM_EVENT_STA_GOT_IP:
Serial.print("Obtained IP address: ");
Serial.println(WiFi.localIP());
break;
case SYSTEM_EVENT_STA_LOST_IP:
Serial.println("Lost IP address and IP address is reset to 0");
break;
case SYSTEM_EVENT_STA_WPS_ER_SUCCESS:
Serial.println("WiFi Protected Setup (WPS): succeeded in enrollee mode");
break;
case SYSTEM_EVENT_STA_WPS_ER_FAILED:
Serial.println("WiFi Protected Setup (WPS): failed in enrollee mode");
break;
case SYSTEM_EVENT_STA_WPS_ER_TIMEOUT:
Serial.println("WiFi Protected Setup (WPS): timeout in enrollee mode");
break;
case SYSTEM_EVENT_STA_WPS_ER_PIN:
Serial.println("WiFi Protected Setup (WPS): pin code in enrollee mode");
break;
case SYSTEM_EVENT_AP_START:
Serial.println("WiFi access point started");
break;
case SYSTEM_EVENT_AP_STOP:
Serial.println("WiFi access point stopped");
break;
case SYSTEM_EVENT_AP_STACONNECTED:
Serial.println("Client connected");
break;
case SYSTEM_EVENT_AP_STADISCONNECTED:
Serial.println("Client disconnected");
break;
case SYSTEM_EVENT_AP_STAIPASSIGNED:
Serial.println("Assigned IP address to client");
break;
case SYSTEM_EVENT_AP_PROBEREQRECVED:
Serial.println("Received probe request");
break;
case SYSTEM_EVENT_GOT_IP6:
Serial.println("IPv6 is preferred");
break;
case SYSTEM_EVENT_ETH_START:
Serial.println("Ethernet started");
break;
case SYSTEM_EVENT_ETH_STOP:
Serial.println("Ethernet stopped");
break;
case SYSTEM_EVENT_ETH_CONNECTED:
Serial.println("Ethernet connected");
break;
case SYSTEM_EVENT_ETH_DISCONNECTED:
Serial.println("Ethernet disconnected");
break;
case SYSTEM_EVENT_ETH_GOT_IP:
Serial.println("Obtained IP address");
break;
default: break;
}}
void WiFiGotIP(WiFiEvent_t event, WiFiEventInfo_t info) {
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(IPAddress(info.got_ip.ip_info.ip.addr));
}
void setup(){
Serial.begin(115200);
WiFi.onEvent(WiFiEvent);
WiFi.mode(WIFI_MODE_APSTA);
WiFi.softAP(soft_ap_ssid, soft_ap_password);
// Initialize LittleFS
if(!LittleFS.begin()){
Serial.println("An Error has occurred while mounting LittleFS");
return;
}
if (LittleFS.exists("/connect_ap.txt") && LittleFS.exists("/connect_pass.txt")){
Serial.println("AP Settings files exist");
File apfile = LittleFS.open("/connect_ap.txt", "r");
while(apfile.available()){
ap_config = apfile.readString();
}
apfile.close();
File passfile = LittleFS.open("/connect_pass.txt", "r");
while(passfile.available()){
pass_config = passfile.readString();
}
passfile.close();
LittleFS.remove("/connect_pass.txt");
LittleFS.remove("/connect_ap.txt");
ap_config.replace(' ', NULL);
pass_config.replace(' ', NULL);
Serial.println(ap_config + " " + pass_config);
wifiMulti.addAP(ap_config.c_str(), pass_config.c_str());
if(wifiMulti.run() == WL_CONNECTED) {
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
//WiFi.begin(ap_config.c_str(), pass_config.c_str());
}else{
Serial.println("AP Setting files do not exist");
}
//WiFi.mode(WIFI_MODE_APSTA);
//WiFi.softAP(soft_ap_ssid, soft_ap_password);
//WiFi.begin();
// Route for root / web page
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/index.html", String(), false);
});
// Route for root / web page
server.on("/favicon.ico", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/favicon.ico", "image/x-icon");
});
// Route to load bootstrap.css file
server.on("/bootstrap.css", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/bootstrap.css", "text/css");
});
// Route to load bootstrap.js file
server.on("/bootstrap.js", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/bootstrap.js", "text/javascript");
});
// Route to load jquery.js file
server.on("/jquery.js", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/jquery.js", "text/javascript");
});
// Route to load styles.css file
server.on("/styles.css", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/styles.css", "text/css");
});
server.on("/connectionInfo", HTTP_GET, [](AsyncWebServerRequest *request){
String connectionInfo;
connectionInfo = WiFi.status();
request->send(200, "text/plain", connectionInfo);
});
server.on("/reboot", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "text/plain", "Rebooting");
ESP.restart();
});
// Route to set scan Networks
server.on("/scanNetwork", HTTP_GET, [](AsyncWebServerRequest *request){
String jsonOut = "{'accesspoints': [";
int n = WiFi.scanNetworks();
Serial.println("scan done");
if (n == 0) {
Serial.println("no networks found");
} else {
Serial.print(n);
Serial.println(" networks found");
for (int i = 0; i < n; ++i) {
Serial.print(i + 1);
Serial.print(": ");
Serial.print(WiFi.SSID(i));
Serial.print(" (");
Serial.print(WiFi.RSSI(i));
Serial.print(")");
Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?" [UNSECURED] ":" [SECURED] ");
jsonOut += "{'ssid':'" + WiFi.SSID(i) + "', 'rssi':'" + WiFi.RSSI(i) + "', 'encryption':'" + ((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?"UNSECURED":"SECURED") + "'},";
delay(10);
}
}
jsonOut += "]}";
Serial.println(jsonOut);
request->send(200, "text/plain", jsonOut);
});
// Route to connect to AP and scan network
server.on("/connectAP", HTTP_GET, [](AsyncWebServerRequest *request){
int paramsNr = request->params();
Serial.println(paramsNr);
String ssid_param = request->getParam("ssid")->value();
String encryption_param = request->getParam("encryption")->value();
String password_param = request->getParam("password")->value();
Serial.println(ssid_param);
Serial.println(encryption_param);
Serial.println(password_param);
File apfile = LittleFS.open("/connect_ap.txt", "w");
apfile.print(ssid_param.c_str());
delay(1);
apfile.close();
File passfile = LittleFS.open("/connect_pass.txt", "w");
passfile.print(password_param.c_str());
delay(1);
passfile.close();
//WiFi.disconnect();
// Connect to Wi-Fi
//WiFi.begin(ssid_param.c_str(), password_param.c_str());
//if(password_param = ""){
// WiFi.begin(ssid_param.c_str());
//}else{
// WiFi.begin(ssid_param.c_str(), password_param.c_str());
//}
//IPAddress ip_recieved = WiFi.localIP();
request->send(200, "text/plain", "Rebooting");//String(WiFi.localIP()
delay(2000);
ESP.restart();
});
// Start server
server.begin();
}
void loop(){
}回答 1
Stack Overflow用户
回答已采纳
发布于 2022-06-26 17:54:03
解决了。这是"ap_config.replace(‘'，NULL)“行的凭据解析中的一个问题。它删除了所有的东西。因此没有指定AP SSID。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/72763607
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