Specifications
12 
 Serial.begin(115200); 
 // Set WiFi to station mode and disconnect from an AP if it was pre
viously connected 
 WiFi.mode(WIFI_STA); 
 WiFi.disconnect(); 
 delay(100); 
 Serial.println("Setup done"); 
} 
void loop() 
{ 
 Serial.println("scan start"); 
 // WiFi.scanNetworks will return the number of networks found 
 int n = WiFi.scanNetworks(); 
 Serial.println("scan done"); 
 if (n == 0) { 
 Serial.println("no networks found"); 
 } else { 
 Serial.print(n); 
 Serial.println(" networks found"); 
 for (int i = 0; i < n; ++i) { 
 // Print SSID and RSSI for each network found 
 Serial.print(i + 1); 
 Serial.print(": "); 
 Serial.print(WiFi.SSID(i)); 
 Serial.print(" ("); 
 Serial.print(WiFi.RSSI(i)); 
 Serial.print(")"); 
 Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?"
 ":"*"); 
 delay(10); 
 } 
 } 
 Serial.println(""); 
 // Wait a bit before scanning again 
 delay(5000); 
} 










