Wednesday, October 26, 2016

Nodemcu 12E with servo mg995

#include <ESP8266WiFi.h>
#include <Servo.h>
const char* ssid = "";
const char* password = "";

//int ledPin = 13; // GPIO13
int val = 0;     // variable for reading the pin status
int servoPin = D4;
Servo servo;
int flag = 1;
int tranPin = 14; //Transister base pin

WiFiServer server(80);

void setup() {
  Serial.begin(115200);
  delay(10);
  pinMode(tranPin, OUTPUT);

  Serial.begin(9600);

  servo.attach(servoPin);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  // Start the server
  server.begin();
  Serial.println("Server started");

  // Print the IP address
  Serial.print("Use this URL to connect: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");

}

void loop() {
  // Check if a client has connected
  WiFiClient client = server.available();
  if (!client) {
    return;
  }

  // Wait until the client sends some data
  Serial.println("new client");
  while(!client.available()){
    delay(1);
  }

  // Read the first line of the request
  String request = client.readStringUntil('\r');
  Serial.println(request);
  client.flush();

  // Match the request

  int value = LOW;
  if (request.indexOf("/LED=ON") != -1)  {
    /*
    if(flag ==0){
      digitalWrite(tranPin, HIGH); //turn on servo power
      servo.write(60);
      delay(800);
      digitalWrite(tranPin, LOW); //turn on servo power
      flag = 1;
    }
    */
    servo.attach(servoPin);
    servo.write(60);
    delay(800);
    servo.detach();
    value = HIGH;
  }
  if (request.indexOf("/LED=OFF") != -1)  {
    /*
    if(flag == 1){
      digitalWrite(tranPin, HIGH); //turn on servo power
      servo.write(150);
      delay(800);
      digitalWrite(tranPin, LOW); //turn on servo power
      flag = 0;
    }
    */
    servo.attach(servoPin);
    servo.write(150);
    delay(800);
    servo.detach();
    value = LOW;
  }

// Set ledPin according to the request
//digitalWrite(ledPin, value);

  // Return the response
  client.println("HTTP/1.1 200 OK");
  client.println("Content-Type: text/html");
  client.println(""); //  do not forget this one
  client.println("<!DOCTYPE HTML>");
  client.println("<html>");

  client.print("Valve is now: ");

  if(value == HIGH) {
    client.print("ON");
  } else {
    client.print("OFF");
  }
  client.println("<br><br>");
  client.println("<a href=\"/LED=ON\"\"><button>Turn On </button></a>");
  client.println("<a href=\"/LED=OFF\"\"><button>Turn Off </button></a><br />");
  client.println("</html>");

  delay(1);
  Serial.println("Client disonnected");
  Serial.println("");

}

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