Hello,
First time trying to use the on board WiFi and I find no signal.
If I use my cellphone as hotspot, 30cm distance, I detect the signal but the result of WiFi.RSSI() gives me -90dBm.
Is there something I can do to boost the signal reception or is it the expected range?
Maybe I simply broke the antena during handling 
here is the example code I am using:
/*
This example prints the board's MAC address, and
scans for available WiFi networks using the GIGA R1 WiFi board.
Every ten seconds, it scans again. It doesn't actually
connect to any network, so no encryption scheme is specified.
Circuit:
* GIGA R1 WiFi
created 13 July 2010
by dlf (Metodo2 srl)
modified 21 June 2012
by Tom Igoe and Jaymes Dec
modified 3 March 2023
by Karl Söderby
*/
#include <SPI.h>
#include <WiFi.h>
void setup() {
//Initialize serial and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// check for the WiFi module:
if (WiFi.status() == WL_NO_MODULE) {
Serial.println("Communication with WiFi module failed!");
// don't continue
while (true);
}
// print your MAC address:
byte mac[6];
WiFi.macAddress(mac);
Serial.print("MAC: ");
printMacAddress(mac);
}
void loop() {
// scan for existing networks:
Serial.println("Scanning available networks...");
listNetworks();
delay(10000);
}
void listNetworks() {
// scan for nearby networks:
Serial.println("** Scan Networks **");
int numSsid = WiFi.scanNetworks();
if (numSsid == -1) {
Serial.println("Couldn't get a WiFi connection");
while (true);
}
// print the list of networks seen:
Serial.print("number of available networks:");
Serial.println(numSsid);
// print the network number and name for each network found:
for (int thisNet = 0; thisNet < numSsid; thisNet++) {
Serial.print(thisNet);
Serial.print(") ");
Serial.print(WiFi.SSID(thisNet));
Serial.print("\tSignal: ");
Serial.print(WiFi.RSSI(thisNet));
Serial.print(" dBm");
Serial.print("\tEncryption: ");
printEncryptionType(WiFi.encryptionType(thisNet));
}
}
void printEncryptionType(int thisType) {
// read the encryption type and print out the name:
switch (thisType) {
case ENC_TYPE_WEP:
Serial.println("WEP");
break;
case ENC_TYPE_TKIP:
Serial.println("WPA");
break;
case ENC_TYPE_CCMP:
Serial.println("WPA2");
break;
case ENC_TYPE_NONE:
Serial.println("None");
break;
case ENC_TYPE_AUTO:
Serial.println("Auto");
break;
case ENC_TYPE_UNKNOWN:
default:
Serial.println("Unknown");
break;
}
}
void printMacAddress(byte mac[]) {
for (int i = 5; i >= 0; i--) {
if (mac[i] < 16) {
Serial.print("0");
}
Serial.print(mac[i], HEX);
if (i > 0) {
Serial.print(":");
}
}
Serial.println();
}
