Форум

#include <dht11.h>
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>
#define DHT11_PIN 7
#define REQ_BUF_SZ 20

dht11 DHT;
File webFile;
char HTTP_req[REQ_BUF_SZ] = {0}; // buffered HTTP request stored as null terminated string
char req_index = 0; // index into HTTP_req buffer
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(192, 168, 0, 15);

EthernetServer server(80);

/*
void setup() {

SD.begin(4);
Ethernet.begin(mac, ip);
server.begin();
}

void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {

#include <dht11.h>
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>
#define DHT11_PIN 7
#define REQ_BUF_SZ 20

dht11 DHT;
File webFile;
char HTTP_req[REQ_BUF_SZ] = {0}; // buffered HTTP request stored as null terminated string
char req_index = 0; // index into HTTP_req buffer
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(192, 168, 0, 20);

EthernetServer server(80);
*/
void setup() {

SD.begin(4);
Ethernet.begin(mac, ip);
server.begin();
}
//***********************
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {

// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
if (req_index < (REQ_BUF_SZ - 1)) {
HTTP_req[req_index] = c; // save HTTP request character
req_index++;
}
if (c == '\n' && currentLineIsBlank) {
if (StrContains(HTTP_req, "GET / ") || StrContains(HTTP_req, "GET /index.htm")) {
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connnection: close");
client.println();
webFile = SD.open("index.htm");
} else if (StrContains(HTTP_req, "GET /temp.png")) {
webFile = SD.open("temp.png");
if (webFile) {
client.println("HTTP/1.1 200 OK");
client.println();
}
} else if (StrContains(HTTP_req, "GET /humid.png")) {
webFile = SD.open("humid.png");
if (webFile) {
client.println("HTTP/1.1 200 OK");
client.println();
}
} else if (StrContains(HTTP_req, "GET /flame.png")) {
webFile = SD.open("flame.png");
if (webFile) {
client.println("HTTP/1.1 200 OK");
client.println();
}
} else if (StrContains(HTTP_req, "ajax_flame")) {
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: keep-alive");
client.println();
int smoke_gas = 0; //пин на котором подключен MQ-2
int sensorReading = analogRead(smoke_gas);
int chk;
chk = DHT.read(DHT11_PIN);
client.println(sensorReading);
client.println(":");
client.println(DHT.temperature);
client.println(":");
client.println(DHT.humidity);

}
if (webFile) {
while (webFile.available()) {
client.write(webFile.read()); // send web page to client
}
webFile.close();
}
req_index = 0;
StrClear(HTTP_req, REQ_BUF_SZ);
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
} else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}

//******************************************************************************
void StrClear(char *str, char length)
{
for (int i = 0; i < length; i++) {
str [i]= 0;
}
}

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;
}
/*
}
if (webFile) {
while(webFile.available()) {
client.write(webFile.read()); // send web page to client
}
webFile.close();
}
req_index = 0;
StrClear(HTTP_req, REQ_BUF_SZ);
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
}else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}

void StrClear(char *str, char length)
{
for (int i = 0; i < length; i++) {
str = 0;
}
}

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;
}
*/