WiFiCLient example does not work - Pico EVB

[mhanuel26]

Hi @GiungKim ,

It looks the WizFI360-Pico-EVB has problems to run the WiFiCLient basic example.

Basically the code is hanging when the client is defined , if I comment the client code like this

/*
 WizFi360 example: WebClient

 This sketch connects to google website using a WizFi360 module to
 perform a simple web search.
*/

#include "WizFi360.h"

// setup according to the device you use
#define WIZFI360_EVB_PICO

// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
#if defined(ARDUINO_MEGA_2560)
SoftwareSerial Serial1(6, 7); // RX, TX
#elif defined(WIZFI360_EVB_PICO)
SoftwareSerial Serial2(6, 7); // RX, TX
#endif
#endif

/* Baudrate */
#define SERIAL_BAUDRATE   115200
#if defined(ARDUINO_MEGA_2560)
#define SERIAL1_BAUDRATE  115200
#elif defined(WIZFI360_EVB_PICO)
#define SERIAL2_BAUDRATE  115200
#endif

/* Wi-Fi info */
char ssid[] = "TraceAP";       // your network SSID (name)
char pass[] = "Liberty123";   // your network password

int status = WL_IDLE_STATUS;  // the Wifi radio's status

// char server[] = "arduino.tips";

// Initialize the Ethernet client object
// WiFiClient client;

void setup() {
  // initialize serial for debugging
  Serial.begin(SERIAL_BAUDRATE);
  // initialize serial for WizFi360 module
#if defined(ARDUINO_MEGA_2560)
  Serial1.begin(SERIAL1_BAUDRATE);
#elif defined(WIZFI360_EVB_PICO)
  Serial2.begin(SERIAL2_BAUDRATE);
#endif
  // initialize WizFi360 module
#if defined(ARDUINO_MEGA_2560)
  WiFi.init(&Serial1);
#elif defined(WIZFI360_EVB_PICO)
  WiFi.init(&Serial2);
#endif

  // check for the presence of the shield
  if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    // don't continue
    while (true);
  }

  // attempt to connect to WiFi network
  while ( status != WL_CONNECTED) {
    Serial.print("Attempting to connect to WPA SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network
    status = WiFi.begin(ssid, pass);
  }

  // you're connected now, so print out the data
  Serial.println("You're connected to the network");
  
  // printWifiStatus();
  printWifiData();

  // Serial.println();
  // Serial.println("Starting connection to server...");
  // // if you get a connection, report back via serial
  // if (client.connect(server, 80)) {
  //   Serial.println("Connected to server");
  //   // Make a HTTP request
  //   client.println("GET /asciilogo.txt HTTP/1.1");
  //   client.println("Host: arduino.tips");
  //   client.println("Connection: close");
  //   client.println();
  // }
}

void loop() {
  printWifiData();
  delay(10000);
  // if there are incoming bytes available
  // from the server, read them and print them
  // while (client.available()) {
  //   char c = client.read();
  //   Serial.write(c);
  // }

  // // wait to let all the input command in the serial buffer
  // delay(5);

  // // if the server's disconnected, stop the client
  // if (!client.connected()) {
  //   Serial.println();
  //   Serial.println("Disconnecting from server...");
  //   client.stop();

  //   // do nothing forevermore
  //   while (true);
  // }
}

void printWifiData() {
  // print your WiFi shield's IP address
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  // print your MAC address
  byte mac[6];
  WiFi.macAddress(mac);
  char buf[20];
  sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", mac[5], mac[4], mac[3], mac[2], mac[1], mac[0]);
  Serial.print("MAC address: ");
  Serial.println(buf);
}

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

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

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

I am able to get the loop print the WiFIData evry 10 seconds, if I uncomment the line

WiFiClient client;

Then the code hangs and loop does not execute further.

How can I debug this?

I have tried to add a try catch thing around the client without any success

void loop() {
  try
  {
    WiFiClient client;
  }
  catch(const char* e)
  {
    Serial.println("cannot create WiFiCLient class");
  }
  while(true)
  {
    printWifiData();
    delay(10000);
  }
}

Now the output console for the above program is the same in both cases, it does not complete the call to printWifiData(); in setup and the board get into an error state so I have to manually boot it and add .uf2 file to recover it.

----------------------------------------------
>> ATE0
ATE0

OK
---------------------------------------------- > 0

----------------------------------------------
>> AT+CWMODE=1

OK
---------------------------------------------- > 0

----------------------------------------------
>> AT+CIPMUX=1

OK
---------------------------------------------- > 0

----------------------------------------------
>> AT+CIPDINFO=1

OK
---------------------------------------------- > 0

----------------------------------------------
>> AT+CWAUTOCONN=0

OK
---------------------------------------------- > 0

----------------------------------------------

>> AT+CWDHCP=1,1

OK
---------------------------------------------- > 0

> getFwVersion
----------------------------------------------
>> AT+GMR
AT version:1.1.1.7(May  4 2021 15:14:59)
SDK version:3.2.0(a0ffff9f)
compile time:May  4 2021 15:14:59

OK
---------------------------------------------- > 1.1.1.7

[WizFi360] Initialization successful - 1.1.1.7
> getConnectionStatus
----------------------------------------------
>> AT+CIPSTATUS
STATUS:5

OK
---------------------------------------------- > 5

Attempting to connect to WPA SSID: TraceAP
> wifiConnect
----------------------------------------------
>> AT+CWJAP_CUR="TraceAP","Liberty123"
WIFI CONNECTED
WIFI GOT IP

OK
---------------------------------------------- > 0

[WizFi360] Connected to TraceAP
You're connected to the network
> getIpAddress
----------------------------------------------
>> AT+CIFSR
+CIFSR:STAIP,"192.168.10.13"
+CIFSR:STAMAC,"00:08:dc:6b:c0:9d"

OK
---------------------------------------------- > 192.168.10.13

I am using Arduino IDE 2.0 and earlephilhower version 2.6.1 , selecting Wiznet WizFi360-EVB-Pico from Boards.

[Giung951]

Hello @mhanuel26

Let me check about this issue.