i want to use the esp32 for wled https://github.com/atuline/WLED
All works fine but one problem occurs.
when wled is running it sometimes happens that i can't connect to the esp32 ip adress.
no matter whether from the pc or from the smartphone. or from the android wled app.
i must reset the esp32. then all works finde until the next hanging.
For testing I used the HelloServer example available in the arduino ide.
Code: Select all
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
const char* ssid = "myssid";
const char* password = "mypassword";
WebServer server(80);
const int led = 2;
void handleRoot() {
digitalWrite(led, 1);
server.send(200, "text/plain", "hello from esp32!");
digitalWrite(led, 0);
}
void handleNotFound() {
digitalWrite(led, 1);
String message = "File Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++) {
message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
digitalWrite(led, 0);
}
void setup(void) {
pinMode(led, OUTPUT);
digitalWrite(led, 0);
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
if (MDNS.begin("esp32")) {
Serial.println("MDNS responder started");
}
often this happens after 7-10 minutes. But sometimes later.
and sometimes not at all.
a colleague tested the program on his esp32 and it worked continuously there.
sometimes i get the following messages from the debug log:
Code: Select all
20:07:32.888 -> [D][WiFiGeneric.cpp:374] _eventCallback(): Event: 5 - STA_DISCONNECTED
20:07:32.941 -> [W][WiFiGeneric.cpp:391] _eventCallback(): Reason: 6 - NOT_AUTHED
20:09:32.905 -> [D][WiFiGeneric.cpp:374] _eventCallback(): Event: 8 - STA_LOST_IP
I do not know if this also occurs with wled
i use a good power supply or a good and short usb cable. I connected an electrolytic capacitor parallel to the power supply.
I also programmed a blinking led into the HelloServer code. if the connection is disconnected, the led continues to flash. So the esp32 is not hanging.
I have used many esp modules ESP01, ESP12, Wemos D1, but i never had this problem.
I don't know what to do with this problem. maybe someone can help me here.