ところが,ところが,インストールに必要な,プラグインをIDEに取り込めません。一日,あれこれやりまし
たがやっとできました。
原因は,arduino IDE のバージョンで,使っていたV2.**ではだめで,v1.**で,やっとできました。
これが,分かるのに丸一日,インストールしていたarduino IDE 関係のフォルダーも全削除して,何回か
インストール,つかれました。
おかげで,やっと,下記の諸兄のスケッチをesp32に書き込み,テストできました。
/*********
Rui Santos
Complete project details at https://randomnerdtutorials.com
*********/// Load Wi-Fi library#include<WiFi.h>// Replace with your network credentialsconstchar* ssid ="REPLACE_WITH_YOUR_SSID";constchar* password ="REPLACE_WITH_YOUR_PASSWORD";// 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 output26State ="off";
String output27State ="off";// Assign output variables to GPIO pinsconstint output26 =26;constint output27 =27;// Current timeunsignedlong currentTime =millis();// Previous timeunsignedlong previousTime =0;// Define timeout time in milliseconds (example: 2000ms = 2s)constlong timeoutTime =2000;voidsetup(){
Serial.begin(115200);// Initialize the output variables as outputspinMode(output26, OUTPUT);pinMode(output27, OUTPUT);// Set outputs to LOWdigitalWrite(output26, LOW);digitalWrite(output27, 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();}voidloop(){
WiFiClient client = server.available();// Listen for incoming clientsif(client){// If a new client connects,
currentTime =millis();
previousTime = currentTime;
Serial.println("New Client.");// print a message out in the serial port
String currentLine ="";// make a String to hold incoming data from the clientwhile(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 offif(header.indexOf("GET /26/on")>=0){
Serial.println("GPIO 26 on");
output26State ="on";digitalWrite(output26, HIGH);}elseif(header.indexOf("GET /26/off")>=0){
Serial.println("GPIO 26 off");
output26State ="off";digitalWrite(output26, LOW);}elseif(header.indexOf("GET /27/on")>=0){
Serial.println("GPIO 27 on");
output27State ="on";digitalWrite(output27, HIGH);}elseif(header.indexOf("GET /27/off")>=0){
Serial.println("GPIO 27 off");
output27State ="off";digitalWrite(output27, 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: #4CAF50; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #555555;}</style></head>");// Web Page Heading
client.println("<body><h1>ESP32 Web Server</h1>");// Display current state, and ON/OFF buttons for GPIO 26
client.println("<p>GPIO 26 - State "+ output26State +"</p>");// If the output26State is off, it displays the ON button if(output26State=="off"){
client.println("<p><a href=\"/26/on\"><button class=\"button\">ON</button></a></p>");}else{
client.println("<p><a href=\"/26/off\"><button class=\"button button2\">OFF</button></a></p>");}// Display current state, and ON/OFF buttons for GPIO 27
client.println("<p>GPIO 27 - State "+ output27State +"</p>");// If the output27State is off, it displays the ON button if(output27State=="off"){
client.println("<p><a href=\"/27/on\"><button class=\"button\">ON</button></a></p>");}else{
client.println("<p><a href=\"/27/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 loopbreak;}else{// if you got a newline, then clear currentLine
currentLine ="";}}elseif(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("");}}