Weird behavior with wifi on battery power

Official Hardware Nano Family Nano RP2040 Connect
1

So I'm trying to make a simple http server on the rp2040 connect. Here's my code so far...

#include <WiFiNINA.h>
#include "secrets.h"

WiFiServer server(80);

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);

  int status = WiFi.status();
  while (status == WL_NO_MODULE);
  while (status != WL_CONNECTED) {
    status = WiFi.begin(NETWORK_SSID, NETWORK_PASSWORD);
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
    delay(1000);
  }

  digitalWrite(LED_BUILTIN, HIGH);
  server.begin();
}

void loop() {
  WiFiClient client = server.available();
  if (client) {
    client.println("HTTP/1.1 204 No Content");
    client.println();
    client.stop();
  }
}
#include <WiFiNINA.h>
#include "secrets.h"

WiFiServer server(80);

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);

  int status = WiFi.status();
  while (status == WL_NO_MODULE);
  while (status != WL_CONNECTED) {
    status = WiFi.begin(NETWORK_SSID, NETWORK_PASSWORD);
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
    delay(1000);
  }

  digitalWrite(LED_BUILTIN, HIGH);
  server.begin();
}

void loop() {
  WiFiClient client = server.available();
  if (client) {
    client.println("HTTP/1.1 204 No Content");
    client.println();
    client.stop();
  }
}

It works great when the board is connected by usb to my computer, the led blinks a few times then remains solid and it responds as expected to incoming http requests. When I move it to battery power though, the led doesn't turn on at all.

Why isn't WiFiNINA detecting the wifi module on battery power?

2

Most likely, the battery power supply is either incorrectly wired or cannot supply enough current. Post a schematic wiring diagram and links to the actual components.

3

Yeah... turns out it was because the battery supply was 3.3V. I've got it working now, Thanks.