|
// Ce programme permet de se connecter depuis notre smartphone, tablette ou ordinateur au WIFI de l'ESP 32 en local.
|
|
// La page html correspond à l'adresse 192.168.4.1
|
|
// On peut y controler la vitesse d'un moteur à courant continu
|
|
// Il y a un bouton Download qui permettra de télécharger un fichier.txt contenant l'heure, la température, l'humidité et la vitesse en tr/min
|
|
|
|
// Load Wi-Fi library
|
|
#include <WiFi.h>
|
|
|
|
// Replace with your network credentials
|
|
const char* ssid = "beta2";
|
|
const char* password = "123456789";
|
|
|
|
int motor1Pin1 = 27;
|
|
int motor1Pin2 = 26;
|
|
int enable1Pin = 14;
|
|
|
|
// Setting PWM properties
|
|
const int freq = 30000;
|
|
const int pwmChannel = 0;
|
|
const int resolution = 8;
|
|
int speed = 0;
|
|
|
|
// Set web server port number to 80
|
|
WiFiServer server(80);
|
|
|
|
// Variable to store the HTTP request
|
|
String header;
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
// Connect to Wi-Fi network with SSID and password
|
|
Serial.print("Setting AP (Access Point)…");
|
|
// Remove the password parameter, if you want the AP (Access Point) to be open
|
|
WiFi.softAP(ssid, password);
|
|
|
|
IPAddress IP = WiFi.softAPIP();
|
|
Serial.print("AP IP address: ");
|
|
Serial.println(IP);
|
|
|
|
server.begin();
|
|
|
|
// sets the pins as outputs:
|
|
pinMode(motor1Pin1, OUTPUT);
|
|
pinMode(motor1Pin2, OUTPUT);
|
|
pinMode(enable1Pin, OUTPUT);
|
|
|
|
// configure LED PWM functionalitites
|
|
ledcSetup(pwmChannel, freq, resolution);
|
|
|
|
// attach the channel to the GPIO to be controlled
|
|
ledcAttachPin(enable1Pin, pwmChannel);
|
|
ledcWrite(pwmChannel,speed);
|
|
|
|
}
|
|
|
|
void loop(){
|
|
|
|
WiFiClient client = server.available(); // Listen for incoming clients
|
|
|
|
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
|
|
while (client.connected()) { // loop while the client's connected
|
|
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 /setSpeed?speed=255") >= 0) {
|
|
speed = 255;
|
|
ledcWrite(pwmChannel,speed);
|
|
}else if(header.indexOf("GET /setSpeed?speed=200") >= 0){
|
|
speed = 200;
|
|
ledcWrite(pwmChannel,speed);
|
|
}else if(header.indexOf("GET /setSpeed?speed=150") >= 0){
|
|
speed = 150;
|
|
ledcWrite(pwmChannel,speed);
|
|
}else if(header.indexOf("GET /setSpeed?speed=50") >= 0){
|
|
speed = 50;
|
|
ledcWrite(pwmChannel,speed);
|
|
}else if(header.indexOf("GET /setSpeed?speed=0") >= 0){
|
|
speed = 0;
|
|
ledcWrite(pwmChannel,speed);
|
|
}
|
|
|
|
|
|
// 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; margin: 0px auto; text-align: center;}");
|
|
client.println(".button { background-color: #a2de96; border: none; color: white; padding: 16px 40px;");
|
|
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
|
|
client.println("</style></head>");
|
|
|
|
// Web Page Heading
|
|
client.println("<body><h1>Capteur de spores IFV</h1>");
|
|
|
|
client.println("<p><a href=\"/download\"><button class=\"button\">Download</button></a></p>");
|
|
client.println("<FORM action=\"/setSpeed\" method=\"get\" id=\"speedForm\"><p>Vitesse : </p><SELECT id=\"selectSpeed\" onChange=\"updateSpeed()\" name=\"speed\" size=\"1\">");
|
|
client.println("<OPTION>255");
|
|
client.println("<OPTION>200");
|
|
client.println("<OPTION>150");
|
|
client.println("<OPTION>50");
|
|
client.println("<OPTION>0");
|
|
client.println("</SELECT></FORM>");
|
|
client.println("<script>function updateSpeed(){document.getElementById(\"speedForm\").submit();}");
|
|
client.println("let element = document.getElementById(\"selectSpeed\");");
|
|
client.println("element.value = "+ String(speed) +";</script>");
|
|
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("");
|
|
}
|
|
}
|