From 5662922e1d1a9200e6f3b82aac462f935f59255f Mon Sep 17 00:00:00 2001 From: Joe Tretter Date: Tue, 29 Mar 2022 09:55:11 -0500 Subject: [PATCH] Add the servo webserver project - have to change to PIO --- .../ServoWebServer/ServoWebServer.ino | 135 ++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 ESP32_ServoWebServer/ServoWebServer/ServoWebServer.ino diff --git a/ESP32_ServoWebServer/ServoWebServer/ServoWebServer.ino b/ESP32_ServoWebServer/ServoWebServer/ServoWebServer.ino new file mode 100644 index 0000000..1947842 --- /dev/null +++ b/ESP32_ServoWebServer/ServoWebServer/ServoWebServer.ino @@ -0,0 +1,135 @@ +/********* + Rui Santos + Complete project details at http://randomnerdtutorials.com +*********/ + +#include +#include + +Servo myservo; // create servo object to control a servo +// twelve servo objects can be created on most boards + +// GPIO the servo is attached to +static const int servoPin = 13; + +// Replace with your network credentials +const char* ssid = "JoeNelsDarlings"; +const char* password = "Paris2016"; + +// Set web server port number to 80 +WiFiServer server(80); + +// Variable to store the HTTP request +String header; + +// Decode HTTP GET value +String valueString = String(5); +int pos1 = 0; +int pos2 = 0; + +// 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); + + myservo.attach(servoPin); // attaches the servo on the servoPin to the servo object + + // 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(); + + // Display the HTML web page + client.println(""); + client.println(""); + client.println(""); + // CSS to style the on/off buttons + // Feel free to change the background-color and font-size attributes to fit your preferences + client.println(""); + client.println(""); + + // Web Page + client.println("

ESP32 with Servo

"); + client.println("

Position:

"); + client.println(""); + + client.println(""); + + client.println(""); + + //GET /?value=180& HTTP/1.1 + if(header.indexOf("GET /?value=")>=0) { + pos1 = header.indexOf('='); + pos2 = header.indexOf('&'); + valueString = header.substring(pos1+1, pos2); + + //Rotate the servo + myservo.write(valueString.toInt()); + Serial.println(valueString); + } + // 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(""); + } +}