WiFiClient not working as expected

trevorwslee commented 2 weeks ago

Boards

AMB82-mini

External Hardware

no`

Hardware Configuration

no

Version

other

IDE Name

Arduino IDE 2.3.3

Operating System

Windows

Auto Flash Mode

Disable

Erase All Flash Memory (16MB)

Disable

Standard Lib

Arduino_STD_PRINTF

Upload Speed

2000000

Description

The sample SimpleTCPServer.ino (https://github.com/Ameba-AIoT/ameba-arduino-pro2/blob/dev/Arduino_package/hardware/libraries/WiFi/examples/SimpleTCPServer/SimpleTCPServer.ino) works fine.

However, if the loop() is changed to be like

void loop()
{
    WiFiClient client = server.available();
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.print(c);
      }
    }
    client.stop();
}

it doesn't seem to work as expected,

Note that I tried the same modified sketch with UNO R4 and it works fine with UNO R4

Thanks for looking into the issue.

Sketch

#include <WiFi.h>

char ssid[] = "xxx";    // your network SSID (name)
char pass[] = "xxx";        // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0;                // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;     // Indicator of Wifi status

WiFiServer server(5000);

void setup()
{
    Serial.begin(115200);    // initialize serial communication

    // attempt to connect to Wifi network:
    while (status != WL_CONNECTED) {
        Serial.print("Attempting to connect to Network named: ");
        Serial.println(ssid);    // print the network name (SSID);

        // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
        status = WiFi.begin(ssid, pass);
        // wait 10 seconds for connection:
        delay(10000);
    }
    //server.setNonBlockingMode();
    server.begin();       // start the tcp server on port 5000
    printWifiStatus();    // you're connected now, so print out the status
}

const size_t bufferLen = 1;
char buffer[bufferLen];
void loop()
{
    WiFiClient client = server.available();
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.print(c);
      }
    }
    client.stop();
}

void printWifiStatus()
{
    // print the SSID of the network you're attached to:
    Serial.print("SSID: ");
    Serial.println(WiFi.SSID());

    // print your WiFi IP address:
    IPAddress ip = WiFi.localIP();
    Serial.print("IP Address: ");
    Serial.println(ip);

    // print the received signal strength:
    long rssi = WiFi.RSSI();
    Serial.print("signal strength (RSSI):");
    Serial.print(rssi);
    Serial.println(" dBm");
}

Error/Debug Message

none

Reproduce remarks

No response

I have checked online documentation, FAQ, GitHub Wiki and existing/closed issues.

[X] I confirm I have checked online documentation, FAQ, GitHub Wiki and existing/closed issues.

github-actions[bot] commented 2 weeks ago

Hello, hope this message finds you well. Congrats to your first Issue! We will review it as soon as possiable. Feel free to have a look at https://www.amebaiot.com/en/ameba-arduino-summary/ for more information

Kyderio commented 8 hours ago

Hi, have you tried setting non blocking mode for your server? Uncomment this line: //server.setNonBlockingMode(); in your set up loop. Thank you.

Ameba-AIoT / ameba-arduino-pro2