49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
/*
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* This sketch demonstrates how to scan WiFi networks.
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* The API is almost the same as with the WiFi Shield library,
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* the most obvious difference being the different file you need to include:
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*/
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#include "ESP8266WiFi.h"
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void setup() {
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Serial.begin(115200);
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// Set WiFi to station mode and disconnect from an AP if it was previously connected
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WiFi.mode(WIFI_STA);
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WiFi.disconnect();
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delay(100);
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Serial.println("Setup done");
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}
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void loop() {
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Serial.println("scan start");
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// WiFi.scanNetworks will return the number of networks found
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int n = WiFi.scanNetworks();
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Serial.println("scan done");
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if (n == 0)
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Serial.println("no networks found");
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else
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{
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Serial.print(n);
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Serial.println(" networks found");
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for (int i = 0; i < n; ++i)
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{
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// Print SSID and RSSI for each network found
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Serial.print(i + 1);
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Serial.print(": ");
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Serial.print(WiFi.SSID(i));
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Serial.print(" (");
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Serial.print(WiFi.RSSI(i));
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Serial.print(")");
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Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE)?" ":"*");
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delay(10);
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}
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}
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Serial.println("");
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// Wait a bit before scanning again
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delay(5000);
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}
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