ESP8266 (Arduino) 之 WIFI Scan(扫描wifi) |
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wifi模块,既可以连接别人的wifi,也可以让别的人通过wifi访问自己。 所以是可以扫描周围都有啥wifi名称的 代码如下,也可以直接从Arduino打开 ,如下 #include "ESP8266WiFi.h" void setup() { Serial.begin(115200); // Set WiFi to station mode and disconnect from an AP if it was previously 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) == ENC_TYPE_NONE) ? " " : "*"); delay(10); } } Serial.println(""); // Wait a bit before scanning again delay(5000); } 编译,下载后 打开串口监控 可以看到 扫描到了17个 wifi 还是很不错的。
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