현제온도 보다 낮거나 높으면, 제어 할 수 있는 기초입니다.
LED 포트에 릴레이, 서보모터를 이용하여 전열기를 ON,OFF를 할 예정입니다.
source code
#include <ESP8266WiFi.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_AM2320.h>
Adafruit_AM2320 am2320 = Adafruit_AM2320();
const char* ssid = "IOT999";
const char* password = "kbs48752";
// Port 80
// Create an instance of the server
// specify the port to listen on as an argument
WiFiServer server(80);
float temper = 0.0;
float h = 0.0;
unsigned long previousMillis = 0;
const long interval = 10000;
#define LED2 2 // LED2 is a Built-in LED.
String situation = "";
int wait30 = 30000; // time to reconnect when connection is lost.
void setup() {
Serial.begin(115200);
pinMode(LED2, OUTPUT);
// Connect WiFi net.
Serial.println();
Serial.print("Connecting with ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("Connected with WiFi.");
// Start Web Server.
server.begin();
Serial.println("Adafruit AM2320 Basic Test");
am2320.begin();
Serial.println("Web Server started.");
// This is the IP
// Serial.print(" WebServer IP: ");
Serial.print("http://");
Serial.println(WiFi.localIP());
}
void loop() {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
float newT = am2320.readTemperature();
if (isnan(newT)) {
Serial.println("Failed to read from AM2320 sensor!");
}
else {
temper = newT;
Serial.println(temper);
}
}
// If disconnected, try to reconnect every 30 seconds.
if ((WiFi.status() != WL_CONNECTED) && (millis() > wait30)) {
Serial.println("Trying to reconnect WiFi...");
WiFi.disconnect();
WiFi.begin(ssid, password);
wait30 = millis() + 30000;
}
// Check if a client has connected..
WiFiClient client = server.available();
if (!client) {
return;
}
Serial.print("New client: ");
Serial.println(client.remoteIP());
// Wait until the client sends data.
// Wait until the client sends data.
// Read the information sent by the client.
String req = client.readStringUntil('\r');
Serial.println(req);
// Make the client's request.
if (req.indexOf("on2") != -1) {digitalWrite(LED2, HIGH); situation = "ON";}
if (req.indexOf("off2") != -1){digitalWrite(LED2, LOW); situation = "OFF";}
if (req.indexOf("consultation") != -1){
if (digitalRead(LED2)){situation = "ON";}
else {situation = "OFF";}
}
//////////////////////////////////////////////
// WEB PAGE. ////////////////////////////
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println(""); // Important.
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<head><meta charset=utf-8></head>");
client.println("<body><center><font face='Arial'>");
client.println("<h1>Temperature Control</h1>");
client.println("<br><br>");
client.println("<p>");
client.println(temper);
client.println("</p>");
client.println("<p>");
client.println("<a href='consultation'><button>상태</button></a>");
client.println(situation);
client.println("</p>");
client.println("<p>");
client.println("<a href='on2'><button>Click to ON LED2</button></a>");
client.println("</p>");
client.println("<p>");
client.println("<a href='off2'><button>Click to OFF LED2</button></a>");
client.println("</p>");
client.println("</font></center></body></html>");
Serial.print("Client disconnected: ");
Serial.println(client.remoteIP());
client.flush();
client.stop();
}
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