David R.
59 lines
1.9 KiB
Arduino
59 lines
1.9 KiB
Arduino
#include "WiFi.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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Serial.print(n);
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Serial.println(" networks found");
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Serial.println("Nr | SSID | RSSI | CH | Encryption");
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for (int i = 0; i < n; ++i) {
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// Print SSID and RSSI for each network found
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Serial.printf("%2d", i + 1);
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Serial.print(" | ");
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Serial.printf("%-32.32s", WiFi.SSID(i).c_str());
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Serial.print(" | ");
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Serial.printf("%4ld", WiFi.RSSI(i));
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Serial.print(" | ");
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Serial.printf("%2ld", WiFi.channel(i));
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Serial.print(" | ");
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switch (WiFi.encryptionType(i)) {
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case WIFI_AUTH_OPEN: Serial.print("open"); break;
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case WIFI_AUTH_WEP: Serial.print("WEP"); break;
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case WIFI_AUTH_WPA_PSK: Serial.print("WPA"); break;
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case WIFI_AUTH_WPA2_PSK: Serial.print("WPA2"); break;
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case WIFI_AUTH_WPA_WPA2_PSK: Serial.print("WPA+WPA2"); break;
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case WIFI_AUTH_WPA2_ENTERPRISE: Serial.print("WPA2-EAP"); break;
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case WIFI_AUTH_WPA3_PSK: Serial.print("WPA3"); break;
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case WIFI_AUTH_WPA2_WPA3_PSK: Serial.print("WPA2+WPA3"); break;
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case WIFI_AUTH_WAPI_PSK: Serial.print("WAPI"); break;
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default: Serial.print("unknown");
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}
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Serial.println();
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delay(10);
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}
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}
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Serial.println("");
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// Delete the scan result to free memory for code below.
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WiFi.scanDelete();
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// Wait a bit before scanning again.
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delay(5000);
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} |