67 lines
2 KiB
Arduino
67 lines
2 KiB
Arduino
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#include <SimpleDHT.h>
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// Created by santosomar Ωr using SimpleDHT library to read data from two DHT11 sensors
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// for DHT11,
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// VCC: 5V or 3V
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// GND: GND
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// SENSOR 1 is in Digital Data pin: 2
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// SENSOR 2 is in Digital Data pin: 4
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int dataPinSensor1 = 2;
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int dataPinSensor2 = 4;
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SimpleDHT11 dht1(dataPinSensor1);
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SimpleDHT11 dht2(dataPinSensor2);
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void setup() {
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Serial.begin(115200);
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}
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void loop() {
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// Reading data from sensor 1...
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Serial.println("=================================");
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// Reading data from sensor 1...
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Serial.println("Getting data from sensor 1...");
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// read without samples.
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byte temperature = 0;
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byte humidity = 0;
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int err = SimpleDHTErrSuccess;
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if ((err = dht1.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {
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Serial.print("Read Sensor 1 failed, err="); Serial.print(SimpleDHTErrCode(err));
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Serial.print(","); Serial.println(SimpleDHTErrDuration(err)); delay(1000);
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return;
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}
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// converting Celsius to Fahrenheit
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byte f = temperature * 1.8 + 32;
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Serial.print("Sample OK: ");
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Serial.print((int)temperature); Serial.print(" *C, ");
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Serial.print((int)f); Serial.print(" *F, ");
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Serial.print((int)humidity); Serial.println(" H humidity");
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// Reading data from sensor 2...
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// ============================
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Serial.println("Getting data from sensor 2...");
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byte temperature2 = 0;
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byte humidity2 = 0;
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if ((err = dht2.read(&temperature2, &humidity2, NULL)) != SimpleDHTErrSuccess) {
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Serial.print("Read Sensor 2 failed, err="); Serial.print(SimpleDHTErrCode(err));
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Serial.print(","); Serial.println(SimpleDHTErrDuration(err)); delay(1000);
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return;
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}
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// converting Celsius to Fahrenheit
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byte fb = temperature2 * 1.8 + 32;
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Serial.print("Sample OK: ");
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Serial.print((int)temperature2); Serial.print(" *C, ");
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Serial.print((int)fb); Serial.print(" *F, ");
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Serial.print((int)humidity2); Serial.println(" H humidity");
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// DHT11 sampling rate is 1HZ.
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delay(1500);
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}
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