1 /*--------------------------------------------------
 2                   written by helio, 2019
 3   ConnectToWifi.ino - 串口打印NodeMCU连接到路由器WiFi
 4 名称和密码，并打印自身ip地址
 5 --------------------------------------------------*/
 6 #include "ESP8266WiFi.h"
 7
 8 void setup()
 9 {
10   Serial.begin(115200);
11   Serial.println();
12
13   WiFi.begin("CEET305", "office305");  // 设置连接到的WiFi名称和密码
14   Serial.print("Connecting...");
15
16   while (WiFi.status() != WL_CONNECTED)
17   {
18     delay(500);
19     Serial.print(".");
20   }
21
22   Serial.println();
23   Serial.print("Connected Succeful to ");
24   Serial.println(WiFi.SSID()); // 打印连接到的WiFi名称
25   Serial.print("The Password of this WiFi is:");
26   Serial.println(WiFi.psk()); // 打印连接到的WiFi的密码
27   Serial.print("IP-address is:");
28   Serial.println(WiFi.localIP()); // 打印NodeMCU的IP地址
29 }
30
31 void loop()
32 {
33
34 }

 1 /*-------------------------------------------------
 2              written by helio, 2019
 3   SoftAp.ino - 将NodeMCU设置为soft-AP模式（热点模式）
 4 其他设备可以连接到该热点
 5 -------------------------------------------------*/
 6 #include <ESP8266WiFi.h>
 7
 8 void setup()
 9 {
10   Serial.begin(115200);
11   Serial.println();
12   Serial.println("Setting soft_AP...");
13   if (WiFI.softAP(“NodeMCU”, “Helioi1122”))
14     Serial.println("Ready");
15   else
16     Serial.println("Failed!");
17 }
18
19 void loop()
20 {
21   Serial.printf("Stations connected = %d\n", WiFi.softAPgetStationNum());
22   delay(3000);
23 }