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June 7, 2019 15:54
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| #include <ESP8266WiFi.h> | |
| #include <ESP8266mDNS.h> // Include the mDNS library | |
| const char* ssid = "JJAGD"; | |
| const char* password = ""; | |
| // Assign output variables to GPIO pins | |
| const int pinHeater = 4; | |
| const int pinPump1 = 5; | |
| const int pinPump2 = 12; | |
| const int pinPump3 = 14; | |
| // Set web server port number to 80 | |
| WiFiServer server(80); | |
| // Variable to store the HTTP request | |
| String header; | |
| int heaterState = 0; | |
| int pumpState = 0; | |
| double tempState = 0; | |
| void setup() { | |
| // put your setup code here, to run once: | |
| pinMode(pinHeater, OUTPUT); | |
| pinMode(pinPump1, OUTPUT); | |
| pinMode(pinPump2, OUTPUT); | |
| pinMode(pinPump3, OUTPUT); | |
| // Relays are closed HIGH | |
| digitalWrite(pinHeater, HIGH); | |
| digitalWrite(pinPump1, HIGH); | |
| digitalWrite(pinPump2, HIGH); | |
| digitalWrite(pinPump3, HIGH); | |
| // 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()); | |
| // Begin mDNS so we can discover the device on the network from the client | |
| if (MDNS.begin("poolduino")) { | |
| MDNS.addService("http", "tcp", 80); | |
| } | |
| server.begin(); | |
| } | |
| // HTTP Paths | |
| // /heater/0 | |
| // /heater/1 | |
| // /pump/0 | |
| // /pump/1 | |
| // /pump/2 | |
| // /pump/3 | |
| // JSON Response | |
| // { "heater" : 0, "pump" : 0, "temp" : 82.1 } | |
| void loop() { | |
| // Update mDNS in case something changes (Like our IP) | |
| MDNS.update(); | |
| 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: application/json"); | |
| client.println("Connection: close"); | |
| client.println(); | |
| bool heaterChanged = false; | |
| bool pumpChanged = false; | |
| // turns the GPIOs on and off | |
| if (header.indexOf("GET /heater/0") >= 0) { | |
| heaterState = 0; | |
| heaterChanged = true; | |
| } else if (header.indexOf("GET /heater/1") >= 0) { | |
| heaterState = 1; | |
| heaterChanged = true; | |
| } else if (header.indexOf("GET /pump/0") >= 0) { | |
| pumpState = 0; | |
| pumpChanged = true; | |
| } else if (header.indexOf("GET /pump/1") >= 0) { | |
| pumpState = 1; | |
| pumpChanged = true; | |
| } else if (header.indexOf("GET /pump/2") >= 0) { | |
| pumpState = 2; | |
| pumpChanged = true; | |
| } else if (header.indexOf("GET /pump/3") >= 0) { | |
| pumpState = 3; | |
| pumpChanged = true; | |
| } | |
| if (heaterChanged) { | |
| Serial.println("Heater Changed to: " + heaterState); | |
| digitalWrite(pinHeater, heaterState == 1 ? LOW : HIGH); | |
| } | |
| if (pumpChanged) { | |
| Serial.println("Pump Changed to: " + pumpState); | |
| // First make sure all pump relays are off | |
| digitalWrite(pinPump1, HIGH); | |
| delay(250); | |
| digitalWrite(pinPump2, HIGH); | |
| delay(250); | |
| digitalWrite(pinPump3, HIGH); | |
| delay(250); | |
| // Now turn the correct one on: | |
| if (pumpState == 1) { | |
| digitalWrite(pinPump1, LOW); | |
| } else if (pumpState == 2) { | |
| digitalWrite(pinPump2, LOW); | |
| } else if (pumpState == 3) { | |
| digitalWrite(pinPump3, LOW); | |
| } | |
| } | |
| // Print back JSON to the client | |
| client.println("{ \"heater\" : " + heaterState + ", \"pump\" : " + pumpState + ", \"temp\" : " + tempState + " } "); | |
| // 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(""); | |
| } | |
| } |
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