ESP2866WebServer and ESP.DeepSleep()

Projects General Guidance
1

I want to have WebServer for maybe 10 seconds or until I have clients sending requests and than I want DeepSleep for maybe 20 seconds. I have tried this but it's not working. I am sending only loop function.

void loop(void){ server.handleClient(); ESP.deepSleep(20e6); // 20e6 is 20 microseconds }
2

You want code to poll for the connection for 10 seconds, end then sleep for 20 seconds?

Cheers,
Kari

3

Yes. And if there is somebody connected to server than I don't want DeepSleep. DeepSleep only if there is no activity on WebServer. Thank you.

4

Ok. How is your code doing so far? What is your problem with code? How can wen help you to write it?

Cheers,
Kari

5

Hello, my code is not doing so well. Today I am coding without DeepSleep, just connecting to wifi and starting WebServer, logging to web page. All that was working today, but than I changed Wifi because my ESP2866 will change places in reality in big supermarket and I couldnt run WebServer, I got message that it is connected to wifi but server didn't start. Than I returned to first wifi and server started, I succesfull log in web page. And one more thing that confuses me is that Serial.println("HTTP server started") sometimes not sometimes yes, and still I am able to log in. I will send you code that troubels me. Thanks in advance.

int connect ()
{
Serial.printf("wake = %d\n", WiFi.forceSleepWake());
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);

unsigned long wifiConnectStart = millis();

while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
if (millis() - wifiConnectStart > 7000) {
Serial.println("Failed to connect to WiFi");
return 0;
}
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
return 1;
}

void setup() {
Serial.begin(115200);
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid); // I never see this in output. I don't know why

if (WiFi.SSID() != "") {
Serial.println(F("WiFi credentials set in flash, wiping them"));
WiFi.disconnect();
}

if (WiFi.getAutoConnect()) {
Serial.println(F("Disabling auto-connect"));
WiFi.setAutoConnect(false);
}

WiFi.persistent(false);

server.on("/", handleRoot);
//... now here is some sever callback functions and collections
server.begin();
Serial.println("HTTP server started");
int i = connect();
}

void loop() {
server.handleClient();
}

Thesse are first lines of Serial:
.........
WiFi connected
IP address:
192.168.0.129
Enter handleRoot
Enter is_authentified

6

I think my ESP remmebers first succesful connection to WiFi and that makes me problems later with WebServer. I repeat, I recive Serial message that I am succesfully connected on other Wifi, when I try that, but server is not working. An I have disconnect function but I don't know how to use it.

void disconnect ()
{
WiFi.disconnect(true);
Serial.printf("sleep 1us = %d\n", WiFi.forceSleepBegin(1));
}

7

There's no way to understand your code, it is missing too much information.

And use code tags next time, thank you.

Cheers,
Kari