From 497bcdb3c0663c6f25923cbf04f0470fab0d97b3 Mon Sep 17 00:00:00 2001
From: alicegetm <aliceg3@illinois.edu>
Date: Thu, 10 Nov 2022 10:40:39 -0600
Subject: [PATCH] adding wifi code
---
arduino_code/test_wifi.ino | 161 +++++++++++++++++++++++++++++++++++++
1 file changed, 161 insertions(+)
create mode 100644 arduino_code/test_wifi.ino
diff --git a/arduino_code/test_wifi.ino b/arduino_code/test_wifi.ino
new file mode 100644
index 0000000..cb83097
--- /dev/null
+++ b/arduino_code/test_wifi.ino
@@ -0,0 +1,161 @@
+/*********
+ Rui Santos
+ Complete project details at https://randomnerdtutorials.com
+*********/
+
+// Load Wi-Fi library
+#include <WiFi.h>
+
+// Replace with your network credentials
+const char* ssid = "Jack";
+const char* password = "temp_pass1234";
+
+// 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";
+String motorSpeedState = "off";
+
+// Assign output variables to GPIO pins
+const int output26 = 2;
+//const int output27 = 27;
+const int motorPin1 = 27;
+const int motorPin2 = 26;
+const int motorPin3 = 15;
+const int motorPin4 = 13;
+
+// 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() {
+ Serial.begin(115200);
+ // Initialize the output variables as outputs
+ pinMode(output26, OUTPUT);
+// pinMode(output27, OUTPUT);
+ // Set outputs to LOW
+ digitalWrite(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();
+}
+
+void loop(){
+ WiFiClient client = server.available(); // Listen for incoming clients
+
+ if (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 client
+ 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 /26/on") >= 0) {
+ Serial.println("GPIO 26 on");
+ output26State = "on";
+ digitalWrite(output26, HIGH);
+ } else if (header.indexOf("GET /26/off") >= 0) {
+ Serial.println("GPIO 26 off");
+ output26State = "off";
+ digitalWrite(output26, LOW);
+ }
+//else if (header.indexOf("GET /27/on") >= 0) {
+// Serial.println("GPIO 27 on");
+// output27State = "on";
+// digitalWrite(output27, HIGH);
+// } else if (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 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("");
+ }
+}
\ No newline at end of file
--
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