如何解决Esp8266 D1-Mini 网络服务器和 LED 闪光灯
我是 esp8266 编程的新手。
我正在寻找如何让 2 个 LED 像救火车转向灯一样闪烁（向左 3 次，然后向右 3 次等......）
我制作了一个程序来执行此操作，但是，我希望它可以通过网络控制打开和打开。
我尝试将程序与网络服务器结合但没有成功（启动后控件不可见）
有人能给我一个正确的方向吗？
// Load Wi-Fi library
#include <ESP8266WiFi.h>
// Replace with your network credentials
const char* ssid = "XXXXXXXXXXXXXXXX";
const char* password = "XXXXXXXXX";
// Set web server port number to 80
WiFiServer server(80);
// Variable to store the HTTP request
String header;
// Auxiliar variables to store the current output state
String output5State = "off";
String output4State = "off";
// Assign output variables to GPIO pins
const int output5 = LED_BUILTIN;
const int output4 = 4;
// Current time
unsigned long currentTime = millis();
// PrevIoUs time
unsigned long prevIoUsTime = 0;
// Define timeout time in milliseconds (example: 2000ms = 2s)
const long timeoutTime = 2000;
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(BUILTIN_LED,OUTPUT); // D5
pinMode(15,OUTPUT); // D8
Serial.begin(115200);
// Initialize the output variables as outputs
pinMode(D1,OUTPUT);
// Set outputs to LOW
digitalWrite(D1,LOW);
// Connect to Wi-Fi network with SSID and password
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid,password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
// Print local IP address and start web server
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
void loop() {
WiFiClient client = server.available(); // Listen for incoming clients
// this is the part i want to turn of and on
// to test i only used the built in led (test with 2 external leds work)
// wait for a second
digitalWrite(BUILTIN_LED,HIGH); // D1 Mini: turns the LED *on*
delay(50); // wait
digitalWrite(BUILTIN_LED,LOW); // D1 Mini: turns the LED *off*
delay(50);
digitalWrite(BUILTIN_LED,LOW); // D1 Mini: turns the LED *off*
delay(50);
digitalWrite(BUILTIN_LED,HIGH); // D1 Mini: turns the LED *on*
delay(50); // wait
digitalWrite(BUILTIN_LED,LOW); // D1 Mini: turns the LED *off*
delay(200);
// ----------------------------------------------------------------------------------------------------------------
if (client) { // If a new client connects,Serial.println("New Client."); // print a message out in the serial port
String currentLine = ""; // make a String to hold incoming data from the client
currentTime = millis();
prevIoUsTime = currentTime;
while (client.connected() && currentTime - prevIoUsTime <= timeoutTime) { // loop while the client's connected
currentTime = millis();
if (client.available()) { // if there's bytes to read from the client,char c = client.read(); // read a byte,then
Serial.write(c); // print it out the serial monitor
header += c;
if (c == '\n') { // if the byte is a newline character
// if the current line is blank,you got two newline characters in a row.
// that's the end of the client HTTP request,so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client kNows what's coming,then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println("Connection: close");
client.println();
// turns the GPIOs on and off
if (header.indexOf("GET /5/on") >= 0) {
Serial.println("GPIO 5 on");// the loop function runs over and over again forever
}
} else if (header.indexOf("GET /5/off") >= 0) {
Serial.println("GPIO 5 off");
output5State = "off";
digitalWrite(output5,LOW);
} else if (header.indexOf("GET /4/on") >= 0) {
Serial.println("GPIO 4 on");
output4State = "on";
digitalWrite(output4,HIGH);
} else if (header.indexOf("GET /4/off") >= 0) {
Serial.println("GPIO 4 off");
output4State = "off";
digitalWrite(output4,LOW);
// display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><Meta name=\"viewport\" content=\"width=device-width,initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
// CSS to style the on/off buttons
// Feel free to change the background-color and font-size attributes to fit your preferences
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #77878A;}</style></head>");
// Web Page heading
client.println("<body><h1>Brandweerwagen Web Server</h1>");
// display current state,and ON/OFF buttons for D1
client.println("<p>Zwaailicht " + output5State + "</p>");
// If the output5State is off,it displays the ON button
if (output5State == "off") {
client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
}
// display current state,and ON/OFF buttons for D5
client.println("<p>GPIO 4 - State " + output4State + "</p>");
// If the output4State is off,it displays the ON button
if (output4State == "off") {
client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
}
client.println("</body></html>");
// The HTTP response ends with another blank line
client.println();
// Break out of the while loop
break;
} else { // if you got a newline,then clear currentLine
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,currentLine += c; // add it to the end of the currentLine
}
}
}
// Clear the header variable
header = "";
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
}
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