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#include <Ethernet.h>
#include <EthernetClient.h>
#include <DHT.h>
#include <LiquidCrystal.h>
#include <SPI.h>
#define DHTPIN 7
#define DHTTYPE DHT22
#define time 2000
LiquidCrystal lcd(9, 8, 5, 4, 3, 2);
DHT dht(DHTPIN, DHTTYPE);
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 3, 5);
IPAddress dns(192, 168, 0, 2);
IPAddress gateway(192, 168, 0, 254);
IPAddress subnet(255, 255, 240, 0);
byte server[] = { 200, 147, 99, 132 };
float t;
float h;
bool rodouUma = false;
EthernetClient client;
EthernetServer webserver(80);
byte grau[8] ={ B00001100,
B00010010,
B00010010,
B00001100,
B00000000,
B00000000,
B00000000,
B00000000,};
void setup()
{
lcd.begin(16, 2);
lcd.clear();
lcd.createChar(0, grau);
lcd.setCursor(0,0);
lcd.print("Temp: ");
lcd.setCursor(13,0);
lcd.write(byte(0));
lcd.print("C");
lcd.setCursor(0,1);
lcd.print("Umid: ");
lcd.setCursor(14,1);
lcd.print("%");
Serial.begin(9600);
Serial.println("Aguardando dados...");
dht.begin();
Ethernet.begin(mac, ip, dns, gateway, subnet);
webserver.begin();
Serial.print("O endereço da página é: ");
Serial.println(Ethernet.localIP());
}
void loop()
{
EthernetClient client = webserver.available();
if (client) {
Serial.println("Nova pagina");
bool linhaEmBranco = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
if (c == 'n' && linhaEmBranco) {
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println("Refresh: 5");
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
for (int analogChannel = 0; analogChannel < 1; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("<h1>");
client.print("<center>");
client.print("TEMPERATURA: ");
client.print(t);
client.println("<br>");
client.print("UMIDADE: ");
client.print(h);
client.print("<center/>");
client.print("<h1/>");
client.println("<br />");
client.println("<br />");
}
client.println("</html>");
break;
}
if (c == 'n') {
linhaEmBranco = true;
} else if (c != 'r') {
linhaEmBranco = false;
}
}
}
delay(1);
client.stop();
Serial.println("client disconnected");
}
delay(2000);
h = dht.readHumidity();
t = dht.readTemperature();
if (isnan(h) || isnan(t))
{
Serial.println("Falha ao ler dados do sensor DHT !!!");
return;
}
Serial.print("Temperatura: ");
Serial.print(t);
lcd.setCursor(8,0);
lcd.print(t);
Serial.print(" *C ");
Serial.print("Umidade : ");
Serial.print(h);
Serial.println(" %");
lcd.setCursor(8,1);
lcd.print(h);
if(t >= 25 && rodouUma == false){
rodouUma = true;
envia();
}
if (t < 25 && rodouUma == true){
rodouUma = false;
enviaNormal();
}
}
void envia(){
delay(time);
Serial.println("conectando...");
if (client.connect(server, 587)){
Serial.println("conectado!");
Serial.println("enviando email...");
Serial.println();
client.println("HELO localhost");
recebe();
delay(time);
client.println("AUTH LOGIN");
recebe();
delay(time);
client.println("cXVpbXRpYS5icmFzaWxAYm9sLmNvbS5icg==");
recebe();
delay(time);
client.println("cTFiMmYzKio=");
recebe();
delay(time);
client.println("mail from: <[email protected]>");
recebe();
delay(time);
client.println("rcpt to: <[email protected]>");
recebe();
delay(time);
client.println("data");
recebe();
delay(time);
client.println("Subject: Alta temperatura no datacenter!");
recebe();
delay(time);
client.println("Atenção!!!n");
client.println("A temperatura do datacenter em graus celsius é: ");
client.println(t);
recebe();
delay(time);
client.println(".");
recebe();
delay(time);
client.println();
recebe();
delay(time);
Serial.println("email enviado!");
delay(time);
if (client.connected()){
Serial.println();
Serial.println("desconectando...");
client.stop();
Serial.println();
Serial.println();
}
}
else{
Serial.println("connection failed");
}
}
void enviaNormal(){
delay(time);
Serial.println("conectando...");
if (client.connect(server, 587)){
Serial.println("conectado!");
Serial.println("enviando email...");
Serial.println();
client.println("HELO localhost");
recebe();
delay(time);
client.println("AUTH LOGIN");
recebe();
delay(time);
client.println("cXVpbXRpYS5icmFzaWxAYm9sLmNvbS5icg==");
recebe();
delay(time);
client.println("cTFiMmYzKio=");
recebe();
delay(time);
client.println("mail from: <[email protected]>");
recebe();
delay(time);
client.println("rcpt to: <[email protected]>");
recebe();
delay(time);
client.println("data");
recebe();
delay(time);
client.println("Subject: Temperatura normalizada no datacenter!");
recebe();
delay(time);
client.println("Atenção!!!n");
client.println("A temperatura do datacenter em graus celsius é: ");
client.println(t);
recebe();
delay(time);
client.println(".");
recebe();
delay(time);
client.println();
recebe();
delay(time);
Serial.println("email enviado!");
delay(time);
if (client.connected()){
Serial.println();
Serial.println("desconectando...");
client.stop();
Serial.println();
Serial.println();
}
}
else{
Serial.println("connection failed");
}
}
void recebe(){
while (client.available()){
char conteudo = client.read();
Serial.print(conteudo);
}
}
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