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概要
wifiを理解したかった。
wemosで、wifi scanしてみた。
結果
11aが、見つからない。
16 networks found
1: aterm-34e11b-g (-73)*
2: B0C7456B8141 (-80)*
3: B0C7456B8141-1 (-77)*
4: aterm-34e11b-gw (-73)*
5: 000A79A44485 (-79)*
6: keyenceautoid (-80)*
7: aterm-24820d-g (-88)*
8: Buffalo-G-A6F4 (-75)*
9: aterm-4c4c3c-g (-64)*
10: 001D738791F4 (-68)*
11: aterm-be5422-g (-84)*
12: DIRECT-D3EA284F (-87)*
13: 001D736531AA_G (-56)*
14: Buffalo_11n/g/b (-81)*
15: Buffalo-G-E128 (-75)*
16: 0024A50BC93C (-75)*
サンプルコード
# include "ESP8266WiFi.h"
void setup()
{
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);
Serial.println("Setup done");
}
void loop()
{
Serial.println("scan start");
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)
{
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) == ENC_TYPE_NONE) ? " " : "*");
delay(10);
}
}
Serial.println("");
delay(5000);
}
以上。
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