Arduino 基於 ESP8266 配置WIFI模塊
使用ESP8266作為服務器，使用瀏覽器訪問該服務器，從而控制LED燈
- 選擇 【文件】->【示例】->【ESP8266WIFI】->【WiFiWebServer】
- 用Arduino新建一個文件，將剛打開的的WIFIWebServer的內容復制過去
- 修改 ssid 和 password 為自家路由器的名稱以及密碼
- 將程序上傳到 ESP8266 開發板中
- 最后就可以通過網站 [ip]/gpio/1 或 [ip]/gpio/0 控制燈開關
# http://192.168.0.57/gpio/1
# ip 地址在序列庫中可以看到
- 附上代碼
/*
* This sketch demonstrates how to set up a simple HTTP-like server.
* The server will set a GPIO pin depending on the request
* http://server_ip/gpio/0 will set the GPIO2 low,
* http://server_ip/gpio/1 will set the GPIO2 high
* server_ip is the IP address of the ESP8266 module, will be
* printed to Serial when the module is connected.
*/
#include <ESP8266WiFi.h>
const char* ssid = "YUCHANJIUYE";
const char* password = "19283746";
// Create an instance of the server
// specify the port to listen on as an argument
WiFiServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
// prepare GPIO2
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, 0);
// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.println(WiFi.localIP());
}
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String req = client.readStringUntil('\r');
Serial.println(req);
client.flush();
// Match the request
int val;
if (req.indexOf("/gpio/0") != -1)
val = 0;
else if (req.indexOf("/gpio/1") != -1)
val = 1;
else {
Serial.println("invalid request");
client.stop();
return;
}
// Set GPIO2 according to the request
digitalWrite(LED_BUILTIN, val);
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<html>\r\nGPIO is now ";
s += (val)?"high":"low";
s += "</html>\n";
// Send the response to the client
client.print(s);
delay(1);
Serial.println("Client disonnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed
}