当满足arduino ide中的条件时，使用java发送电子邮件
当满足arduino ide中的条件时，使用java发送电子邮件
提问于 2020-01-21 18:23:29
我需要为学校做一个项目，它要求我在arduino上的温度传感器达到一定程度时发送电子邮件。因为我对java最熟悉，所以我用java mail API在Java上制作了邮件发送器。现在我只需要在Arduino IDE中连接我的程序，在java上连接我的邮件发送器，这样当温度升高时就会发送一封电子邮件。我在Arduino中的代码还包括一个网站，但这与我的问题没有直接关系。以下是我在Arduino中的代码：
#include <dht.h>
#include <SPI.h>
#include <Ethernet.h>
dht DHT;
#define DHT11_PIN 7 // what pin we're connected to
byte mac[] = { 0xA8, 0x61, 0x0A, 0xAE, 0x3A, 0xC4 };
EthernetServer server(80);
#define DHTTYPE DHT11 // DHT 11
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// start the Ethernet connection and the server:
Ethernet.begin(mac);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
int chk = DHT.read11(DHT11_PIN);
Serial.print("Temperature = ");
Serial.println(DHT.temperature);
Serial.print("Humidity = ");
Serial.println(DHT.humidity);
delay(2000);
// check if returns are valid, if they are NaN (not a number) then something went wrong!
/* if (isnan(DHT.temperature) || isnan(DHT.humidity)) {
Serial.println("Failed to read from DHT");
} else {
Serial.print("Humidity: ");
Serial.print(DHT.humidity);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(DHT.temperature);
Serial.println(" *C");
}*/
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
//client.println("<script> alert('TEST'); </script>");
// output the value of the DHT-11
client.println("<H2>");
client.print("Humidity: ");
client.println("</H2>");
client.println("<p />");
client.println("<H1>");
client.print(DHT.humidity);
client.print(" %\t");
client.println("</H1>");
client.println("<p />");
client.println("<H2>");
client.print("Temperature: ");
client.println("</H2>");
client.println("<H1>");
client.print(DHT.temperature);
client.println("°");
client.println("C");
client.println("</H1>");
client.println("</html>");
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();
Serial.println("client disonnected");
}
}回答 1
Stack Overflow用户
发布于 2020-01-21 19:45:42
Arduino sketch运行web-server。Line Serial.println(Ethernet.localIP());将其IP打印到串行接口。您的java程序可以向此web服务器发出http请求，并通过电子邮件重新发送输出。或者你可以通过SMTP直接从arduino发送电子邮件，也许可以使用像SMTPClient这样的库。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/59838966
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