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#include <Arduino.h>
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#include <ESP8266WiFi.h>
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#include <ESPAsyncTCP.h>
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#include <ESPAsyncWebServer.h>
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#include <AsyncElegantOTA.h>
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#include <Wire.h>
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AsyncWebServer server(80); |
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#define FAN_PIN 2
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#define DELAY_TIME 1000 // time between measurements [ms]
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// This next section specifies variables and constants needed by the code snippet to convert serial input from ASCII to int
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#define numberOfDigits 3
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char theNumberString[numberOfDigits + 1]; |
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int input; |
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// HTML based manual Fan speed input
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const char* PARAM_INPUT_1 = "input1"; |
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// WiFi settings
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const char* ssid = "LILiK_WiFi"; //replace with your SSID
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const char* password = "pippopippo"; //password
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String hostname = "Ventole_Einstein"; |
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// Default Fan Speed
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int fanSpeedPercent = 20; |
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// HTML WEB interface
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const char index_html[] PROGMEM = R"rawliteral( |
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<!DOCTYPE HTML><html><head> |
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<title>ControllerVentoleEinstein</title> |
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<meta name="viewport" content="width=device-width, initial-scale=1"> |
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</head><body> |
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<h2>Ciao! Sono l'ESP8266 che gestisce le ventole di Einstein (HP DL380p G8)</h2> |
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<form action="/get"> |
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% manuale: <input type="number" name="input1"> |
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<input type="submit" value="Submit"> |
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</form><br> |
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<style> |
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html {font-family: Times New Roman; display: inline-block; text-align: center;} |
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h2 {font-size: 2.0rem;} |
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h3 {font-size: 2.0rem; color: #FF0000;} |
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</style> |
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<h2>Clicca qui sotto per aggiornare il firmware, o il secondo link per il sorgente.</h2> |
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<a href='/update'>⬆️ OTA Firmware_Update ⬆️</a> |
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<a href='https://github.com/francescocy/ESP_fan_controller'>🐱GitHub🐙</a><br><br>
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</body></html>)rawliteral"; |
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void notFound(AsyncWebServerRequest *request) { |
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request->send(404, "text/plain", "Not found"); |
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} |
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// the setup function runs once when you press reset or power the board
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void setup(void) { |
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pinMode(FAN_PIN, OUTPUT); |
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analogWriteFreq(25000); |
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Serial.begin(115200); |
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WiFi.mode(WIFI_STA); |
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// WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE);
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WiFi.setHostname(hostname.c_str()); //define hostname
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WiFi.begin(ssid, password); |
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Serial.println(""); |
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// Wait for connection
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while (WiFi.status() != WL_CONNECTED) { |
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delay(500); |
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Serial.print("."); |
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} |
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Serial.println(""); |
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Serial.print("Connected to "); |
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Serial.println(ssid); |
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Serial.print("IP address: "); |
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Serial.println(WiFi.localIP()); |
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// Send web page with input fields to client
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server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) { |
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request->send(200, "text/html", index_html); |
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}); |
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// Send a GET request to <ESP_IP>/get?input1=<inputMessage>
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server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) { |
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String inputMessage; |
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String inputParam; |
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// GET input1 value on <ESP_IP>/get?input1=<inputMessage>
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if (request->hasParam(PARAM_INPUT_1)) { |
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inputMessage = request->getParam(PARAM_INPUT_1)->value(); |
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inputParam = inputMessage; |
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if (inputMessage.toFloat() > 5 && inputMessage.toFloat() < 101) { |
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fanSpeedPercent = inputMessage.toFloat(); |
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} |
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} |
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else { |
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inputMessage = "No message sent"; |
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inputParam = "none"; |
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} |
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Serial.print("Speed received from HTML page: " ); |
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Serial.println(inputMessage); |
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request->send(200, "text/html", "HTTP GET request sent to your ESP on input field (" |
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+ inputParam + ") with value: " + inputMessage + |
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"<br><a href=\"/\">Return to Home Page</a>"); |
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}); |
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server.onNotFound(notFound); |
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AsyncElegantOTA.begin(&server); // Start ElegantOTA
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server.begin(); |
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Serial.println("HTTP server started"); |
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} |
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// the loop function runs over and over again forever
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void loop() { |
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// Check if a serial interface is running
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if(Serial.available()){ |
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// Check the first character: if it is "S" it will be followed by 3 digits for the fan speed
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// S025 = 25%
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if(Serial.read() == 'S') |
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{ |
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for (int i = 0; i < numberOfDigits; theNumberString[i++] = Serial.read()); |
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theNumberString[numberOfDigits] = 0x00; |
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input = atoi(theNumberString); |
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Serial.print("You typed: " ); |
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Serial.println(input); |
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if (input > 4 && input < 101) { |
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fanSpeedPercent = input; |
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} |
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else { |
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Serial.print("Fan Speed out of Range!" ); |
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} |
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} |
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} |
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Serial.print("Fan speed is "); |
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Serial.print(fanSpeedPercent); |
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Serial.println(" %"); |
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Serial.println(); |
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analogWrite(FAN_PIN, ((100 - fanSpeedPercent) / 100.0) * 255); |
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delay(1000); |
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} |
studentidisinistra
2 years ago
