Arduino MKR Wifi 1010 won't connect to hotspot when it's unplugged

Official Hardware MKR Family MKR WiFi 1010
1

I'm trying to connect MKR Wifi 1010 to my mobile phone,
When I've plug the MKR Wifi 1010 with my laptop, it connect immediatly with my hotspot. But when I unplug the MKR Wifi 1010 it not connect to my hotspot.
How can I resolve this problem?
Thanking in advance,
Regards

2

plug a power supply ? :innocent:

show us the source code ? (do you block until the Serial line is activated for example?)

3

Obviously it's connected to a power supply, but with a battery in Vin and GND pin.
The code is:

/*
 * Codice Arduino MKR WiFi per far funzionare le comunicazioni WiFi tra il programma in Java e il programma in Arduino  
 * @version 1.0
 */

#include <ArduinoHttpClient.h>
#include <WiFiNINA.h>

/////// WiFi Settings ///////
char ssid[] = "ssid-hotspot";
char pass[] = "psw-hotspot";

char serverAddress[] = "ip-laptop";  // server address
int port = 8025;

WiFiClient wifi;
WebSocketClient client = WebSocketClient(wifi, serverAddress, port);
int status = WL_IDLE_STATUS;
int count = 0;

/*
 * Funzione setup per l'inizializzazione delle variabili, il settaggio dei pin e il settaggio del WiFi
 */
void setup() {
  Serial.begin(9600);
  //pinMode(TX,OUTPUT);
  //pinMode(RX,INPUT);
  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:
    status = WiFi.begin(ssid, pass);
  }

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

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


/*
 * Funzione che fa funzionare l'intero programma fintantochè il dispositivo è connesso al WiFi
 */
void loop() {
  Serial.println("starting WebSocket client");
  client.begin();

  while (client.connected()) {
     Serial.print("Sending hello ");
    Serial.println(count);

    // send a hello #
    client.beginMessage(TYPE_TEXT);
    client.print("hello ");
    client.print(count);
    client.endMessage();

    // increment count for next message
    count++;


    // check if a message is available to be received
    int messageSize = client.parseMessage();

    if (messageSize > 0) {
      Serial.println("Received a message:");
      String a = client.readString();
      Serial.write(a.c_str());
    }
    // wait 5 seconds
    delay(5000);
  }

  Serial.println("disconnected");
}
4

How much current can you draw from that battery?

5

about 3,6V. I use rechargable battery from 1,2V.
But I don't think this it's the problem because the led for the battery on MKR Wifi 1010 are turned on

6

Current, not voltage
Wifi requires significant current (more than a led)

7

uhm at the moment I don't know that, my friend have the project...
But you know how is? Tomorrow when I'm going to see they I'll check.

8

Do you know the exact type of batteries ?

9

I use the "Energizer Recharge" battery, I see they are 2000mAh, so for 3 of them are 6000mAh

10

Now, I have tried with 4 batteries and now work.
Thanks so much

11

Glad to hear

12

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