105 lines
2.8 KiB
Arduino
105 lines
2.8 KiB
Arduino
/**
|
|
* The MySensors Arduino library handles the wireless radio link and protocol
|
|
* between your home built sensors/actuators and HA controller of choice.
|
|
* The sensors forms a self healing radio network with optional repeaters. Each
|
|
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
|
|
* network topology allowing messages to be routed to nodes.
|
|
*
|
|
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
|
|
* Copyright (C) 2013-2015 Sensnology AB
|
|
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
|
|
*
|
|
* Documentation: http://www.mysensors.org
|
|
* Support Forum: http://forum.mysensors.org
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
*******************************
|
|
*
|
|
* REVISION HISTORY
|
|
* Version 1.0 - Henrik EKblad
|
|
*
|
|
* DESCRIPTION
|
|
* This sketch provides an example how to implement a humidity/temperature
|
|
* sensor using DHT11/DHT-22
|
|
* http://www.mysensors.org/build/humidity
|
|
*/
|
|
|
|
// Enable debug prints
|
|
//#define MY_DEBUG
|
|
|
|
// Enable and select radio type attached
|
|
#define MY_RADIO_NRF24
|
|
//#define MY_RADIO_RFM69
|
|
|
|
#include <SPI.h>
|
|
#include <MySensor.h>
|
|
#include <DHT.h>
|
|
|
|
#define CHILD_ID_HUM 0
|
|
#define CHILD_ID_TEMP 1
|
|
#define HUMIDITY_SENSOR_DIGITAL_PIN 3
|
|
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
|
|
|
|
DHT dht;
|
|
float lastTemp;
|
|
float lastHum;
|
|
boolean metric = true;
|
|
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
|
|
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
|
|
|
|
void setup()
|
|
{
|
|
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
|
|
|
|
metric = getConfig().isMetric;
|
|
}
|
|
|
|
void presentation()
|
|
{
|
|
// Send the Sketch Version Information to the Gateway
|
|
sendSketchInfo("Humidity", "1.0");
|
|
|
|
// Register all sensors to gw (they will be created as child devices)
|
|
present(CHILD_ID_HUM, S_HUM);
|
|
present(CHILD_ID_TEMP, S_TEMP);
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
delay(dht.getMinimumSamplingPeriod());
|
|
|
|
// Fetch temperatures from DHT sensor
|
|
float temperature = dht.getTemperature();
|
|
if (isnan(temperature)) {
|
|
Serial.println("Failed reading temperature from DHT");
|
|
} else if (temperature != lastTemp) {
|
|
lastTemp = temperature;
|
|
if (!metric) {
|
|
temperature = dht.toFahrenheit(temperature);
|
|
}
|
|
send(msgTemp.set(temperature, 1));
|
|
#if MY_DEBUG
|
|
Serial.print("T: ");
|
|
Serial.println(temperature);
|
|
#endif
|
|
}
|
|
|
|
// Fetch humidity from DHT sensor
|
|
float humidity = dht.getHumidity();
|
|
if (isnan(humidity)) {
|
|
Serial.println("Failed reading humidity from DHT");
|
|
} else if (humidity != lastHum) {
|
|
lastHum = humidity;
|
|
send(msgHum.set(humidity, 1));
|
|
#if MY_DEBUG
|
|
Serial.print("H: ");
|
|
Serial.println(humidity);
|
|
#endif
|
|
}
|
|
|
|
sleep(SLEEP_TIME); //sleep a bit
|
|
}
|