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Permalink Responder até Filipi Gabriel A G da Silva em 30 setembro 2016 at 10:17

Olá, posso sim!

#include <SPI.h>
#include <Ethernet.h>
//#include <SD.h>
#include <RelayBoard.h>
// size of buffer used to capture HTTP requests
#define REQ_BUF_SZ   60
#define date    6
#define strobe  3
#define clock   2
#define numberboards 1

RelayBoard relay(date, strobe, clock, numberboards);

int i;
int j;

// MAC address from Ethernet shield sticker under board
byte mac[] = { 0x90, 0xA2, 0xDA, 0x0D, 0x42, 0x3E };
IPAddress ip(192,168,2,164); // IP address, may need to change depending on network
EthernetServer server(65);  // create a server at port 80

// File webFile;               // the web page file on the SD card

char HTTP_req[REQ_BUF_SZ] = {0}; // buffered HTTP request stored as null terminated string
char req_index = 0;              // index into HTTP_req buffer
boolean LED_state[6] = {0}; // stores the states of the LEDs

void setup()
{
    // disable Ethernet chip
    pinMode(10, OUTPUT);
    digitalWrite(10, HIGH);
    
    Serial.begin(9600);       // for debugging

    /*
    // initialize SD card
    Serial.println("Initializing SD card...");
    if (!SD.begin(4)) {
        Serial.println("ERROR - SD card initialization failed!");
        return;    // init failed
    }
    
    Serial.println("SUCCESS - SD card initialized.");
    // check for index.htm file
    if (!SD.exists("index.htm")) {
        Serial.println("ERROR - Can't find index.htm file!");
        return;  // can't find index file
    }
    Serial.println("SUCCESS - Found index.htm file.");
    // switch on pin 2 */
   
    pinMode(A2, INPUT);
    pinMode(A3, INPUT);
    // LEDs
    
    
    Ethernet.begin(mac, ip);  // initialize Ethernet device
    server.begin();           // start to listen for clients
}

void loop()
{
    EthernetClient client = server.available();  // try to get client

    if (client) {  // got client?
        boolean currentLineIsBlank = true;
        
        while (client.connected()) {
            if (client.available()) {   // client data available to read
                char c = client.read(); // read 1 byte (character) from client
                // limit the size of the stored received HTTP request
                // buffer first part of HTTP request in HTTP_req array (string)
                // leave last element in array as 0 to null terminate string (REQ_BUF_SZ - 1)
                if (req_index < (REQ_BUF_SZ - 1)) {
                    HTTP_req[req_index] = c;          // save HTTP request character
                    req_index++;
                }
                // last line of client request is blank and ends with \n
                // respond to client only after last line received
                if (c == '\n' && currentLineIsBlank) {
                    // send a standard http response header
                    client.println("HTTP/1.1 200 OK");
                    // remainder of header follows below, depending on if
                    // web page or XML page is requested
                    // Ajax request - send XML file
                    if (StrContains(HTTP_req, "ajax_inputs")) {
                        // send rest of HTTP header
                        client.println("Content-Type: text/xml");
                        client.println("Connection: keep-alive");
                        client.println();
                        SetLEDs();
                        // send XML file containing input states
                        XML_response(client);
                    } else
                 
                    {  // web page request
                        // send rest of HTTP header
                        client.println("Content-Type: text/html");
                        client.println("Connection: keep-alive");
                        client.println();
                        // send web page
                        /*webFile = SD.open("index.htm");        // open web page file
                        if (webFile) {
                            while(webFile.available()) {
                                client.write(webFile.read()); // send web page to client
                                
                            }
                    
                            webFile.close();
                        }*/
                    }
                    // display received HTTP request on serial port
                    Serial.print(HTTP_req);
                    // reset buffer index and all buffer elements to 0
                    req_index = 0;
                    StrClear(HTTP_req, REQ_BUF_SZ);
                    break;
                }
                // every line of text received from the client ends with \r\n
                if (c == '\n') {
                    // last character on line of received text
                    // starting new line with next character read
                    currentLineIsBlank = true;
                }
                else if (c != '\r') {
                    // a text character was received from client
                    currentLineIsBlank = false;
                }
            } // end if (client.available())
        } // end while (client.connected())
        delay(1);      // give the web browser time to receive the data
        client.stop(); // close the connection
    } // end if (client)
}

// checks if received HTTP request is switching on/off LEDs
// also saves the state of the LEDs
void SetLEDs(void)
{
    // LED 1 (pin 6)
    if (StrContains(HTTP_req, "LED1=1")) {
        LED_state[0] = 1;  // save LED state
        relay.set(0,0,1);
    }
    else if (StrContains(HTTP_req, "LED1=0")) {
        LED_state[0] = 0;  // save LED state
        relay.set(0,0,0);    
    }
    // LED 2 (pin 7)
    if (StrContains(HTTP_req, "LED2=1")) {
        LED_state[1] = 1;  // save LED state
        relay.set(0,1,1);
    }
    else if (StrContains(HTTP_req, "LED2=0")) {
        LED_state[1] = 0;  // save LED state
        relay.set(0,1,0);
    }
    // LED 3 (pin 8)
    if (StrContains(HTTP_req, "LED3=1")) {
        LED_state[2] = 1;  // save LED state
        relay.set(0,2,1);
    }
    else if (StrContains(HTTP_req, "LED3=0")) {
        LED_state[2] = 0;  // save LED state
        relay.set(0,2,0);
    }
    // LED 4 (pin 9)
    if (StrContains(HTTP_req, "LED4=1")) {
        LED_state[3] = 1;  // save LED state
        relay.set(0,3,1);
    }
    else if (StrContains(HTTP_req, "LED4=0")) {
        LED_state[3] = 0;  // save LED state
        relay.set(0,3,0);
    }
    // LED 5 (pin 5)
    if (StrContains(HTTP_req, "LED5=1")) {
        LED_state[4] = 1;  // save LED state
        relay.set(0,4,1);
    }
    else if (StrContains(HTTP_req, "LED5=0")) {
        LED_state[4] = 0;  // save LED state
        relay.set(0,4,0);   
    }
    // LED 6 (pin 3)
    if (StrContains(HTTP_req, "LED6=1")) {
        LED_state[5] = 1;  // save LED state
        relay.set(0,5,1);
    }
    else if (StrContains(HTTP_req, "LED6=0")) {
        LED_state[5] = 0;  // save LED state
        relay.set(0,5,0);   
    }

        // LED 7 (pin 3)
    if (StrContains(HTTP_req, "LED7=1")) {
        LED_state[6] = 1;  // save LED state
        relay.set(0,6,1);
    }
    else if (StrContains(HTTP_req, "LED7=0")) {
        LED_state[6] = 0;  // save LED state
        relay.set(0,6,0);   
    }

        // LED 8 (pin 3)
    if (StrContains(HTTP_req, "LED8=1")) {
        LED_state[7] = 1;  // save LED state
        relay.set(0,7,1);
    }
    else if (StrContains(HTTP_req, "LED8=0")) {
        LED_state[7] = 0;  // save LED state
        relay.set(0,7,0);   
    }

    // Ligar e desligar tudo.
    if (StrContains(HTTP_req, "LEDALL=1")) {
      for(int x = 0; x <= 7; x++){
        LED_state[x] = 1;  // save LED state
        relay.set(0,x,1);
      }
    }
    else if (StrContains(HTTP_req, "LEDALL=0")) {
      for(int x = 0; x <= 7; x++){
        LED_state[x] = 0;  // save LED state
        relay.set(0,x,0);   
      }
    }
}

// send the XML file with analog values, switch status
//  and LED status
void XML_response(EthernetClient cl)
{   
    cl.println("<?xml version = \"1.0\" ?>");
    cl.println("<inputs>");
    // read analog inputs
        cl.print("<analog>");
        cl.print(analogRead(4));
        cl.println("</analog>");
        cl.print("<analog>");
        cl.print(analogRead(5));
        cl.println("</analog>");

    // read switches   
        cl.print("<switch>");
        if (digitalRead(2)) {cl.print("ON");} else {cl.print("OFF");}
        cl.println("</switch>");
        cl.print("<switch>");
        if (digitalRead(A2)) {cl.print("ON");} else {cl.print("OFF");}
        cl.println("</switch>");
        cl.print("<switch>");
        if (digitalRead(A3)) {cl.print("ON");} else {cl.print("OFF");}
        cl.println("</switch>");
   
    // checkbox LED states
      // LED1
        cl.print("<LED>");
        if (LED_state[0]) {cl.print("checked");} else {cl.print("unchecked");}
        cl.println("</LED>");
      // LED2
        cl.print("<LED>");
        if (LED_state[1]) {cl.print("checked");} else {cl.print("unchecked");}
         cl.println("</LED>");
      // LED3
        cl.print("<LED>");
        if (LED_state[2]) {cl.print("on");} else {cl.print("off");}
        cl.println("</LED>");
      // LED4
        cl.print("<LED>");
        if (LED_state[3]) {cl.print("on");} else {cl.print("off");}
        cl.println("</LED>");
      // LED5
        cl.print("<LED>");
        if (LED_state[4]) {cl.print("on");} else {cl.print("off");}
        cl.println("</LED>");
      // LED6
        cl.print("<LED>");
        if (LED_state[5]) {cl.print("on");} else {cl.print("off");}
        cl.println("</LED>");
    cl.print("</inputs>");
}

// sets every element of str to 0 (clears array)
void StrClear(char *str, char length)
{
    for (int i = 0; i < length; i++) {
        str[i] = 0;
    }
}

// searches for the string sfind in the string str
// returns 1 if string found
// returns 0 if string not found
char StrContains(char *str, char *sfind)
{
    char found = 0;
    char index = 0;
    char len;

    len = strlen(str);
    
    if (strlen(sfind) > len) {
        return 0;
    }
    while (index < len) {
        if (str[index] == sfind[found]) {
            found++;
            if (strlen(sfind) == found) {
                return 1;
            }
        }
        else {
            found = 0;
        }
        index++;
    }

    return 0;
}

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