79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
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// https://www.arduino.cc/en/Reference/LiquidCrystal
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// https://www.youtube.com/watch?v=dZZynJLmTn8
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// https://www.youtube.com/watch?v=R-CRIthB7ZY
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// http://howtomechatronics.com/tutorials/arduino/lcd-tutorial/
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#include <DHT.h>
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#include <LiquidCrystal.h>
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#define DHT_APin A0 // Pin Análogico al que he conectado el sensor
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#define DHT_Type DHT22 // mi sensor es el DHT11
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// init
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DHT dht(DHT_APin, DHT_Type);
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LiquidCrystal lcd(9, 10, 4, 5, 6, 7); // syntax: LiquidCrystal(rs, enable, d4, d5, d6, d7)
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int timer = 0;
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void setup() { // put your setup code here, to run once:
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Serial.begin(9600);
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dht.begin();
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lcd.begin(16, 2);
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pinMode(13, OUTPUT); // 13 es el pin con el led
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lcd.print(" hue hue hue");
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}
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void loop() { // put your main code here, to run repeatedly:
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timer--;
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if (timer <= 0) {
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// Reading temperature or humidity takes about 250 milliseconds!
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// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
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float h = dht.readHumidity();
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float t = dht.readTemperature(); // lectura en Celsius, readTemperature(true) para Fahrenheit
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if (isnan(h) || isnan(t)) {
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Serial.println("E"); // E = error, para el script en python que lee
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return;
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}
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// Compute heat index in Celsius (isFahreheit = false)
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float hic = dht.computeHeatIndex(t, h, false); // sensación térmica
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// D = DHT, para el script en python que leerá esto
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Serial.print("D h:");
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Serial.print(h);
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Serial.print(" t:");
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Serial.print(t);
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Serial.print(" i:");
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Serial.print(hic);
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Serial.println("");
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lcd.clear();
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lcd.print(t);
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lcd.print("C ");
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lcd.print(h);
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lcd.print("%");
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lcd.setCursor(0, 2);
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lcd.print(hic);
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lcd.print("C");
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digitalWrite(13, HIGH);
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delay(100);
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digitalWrite(13, LOW);
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//delay(60000); // 1 minuto
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timer = 60;
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}
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lcd.setCursor(14, 2);
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if (timer < 10)
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lcd.print(0);
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lcd.print(timer);
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delay(1000);
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}
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