Files
OpenMQTT-Gateway/ZsensorDHT.ino
T
Florian 56057690a5 Pr/61 add I2C sensors BME280 and BH1750 (#64)
* changed user config

* added lightsensor module

* changed Pin Adresses

* Added I2C Lightsensor

Added the I2C Lightsensor and Switchted most Pins

* removed some debug to serial

removed some debug stuff was send to serial console

* Merge with Master

* Too much things for arduino uno

per default remove sensors for it

* Adding I2C Module function

Opens the Door on OpenMQTTGateway for "i2c Bus Modules/Sensors"

* Fixing BH1750 detection

Fixing the detection for a missing BH1750 Module

* Add libraries and define sensors depending on wiring type #63
2017-06-14 23:42:11 +02:00

81 lines
2.7 KiB
Arduino

/*
OpenMQTTGateway Addon - ESP8266 or Arduino program for home automation
Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal and a MQTT broker
Send and receiving command by MQTT
DHT reading Addon
Copyright: (c)Florian ROBERT
Contributors:
- prahjister
- 1technophile
This file is part of OpenMQTTGateway.
OpenMQTTGateway is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenMQTTGateway is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef ZsensorDHT
#include <DHT.h>
#include <DHT_U.h>
#define dht_always true // if false when the current value for temp or hum is the same as previous one don't send it by MQTT
#define TimeBetweenReading 30000
DHT dht(DHT_RECEIVER_PIN,DHT22); // Defined in User_config.h
/*----------------------------USER PARAMETERS-----------------------------*/
/*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
#define HUM1 "home/DHTtoMQTT/dht1/hum"
#define TEMP1 "home/DHTtoMQTT/dht1/temp"
//Time used to wait for an interval before resending temp and hum
unsigned long timedht = 0;
void MeasureTempAndHum(){
if (millis() > (timedht + TimeBetweenReading)) {//retriving value of temperature and humidity of the box from DHT every xUL
timedht = millis();
static float persistedh;
static float persistedt;
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
// Check if any reads failed and exit early (to try again).
if (isnan(h) || isnan(t)) {
trc(F("Failed to read from DHT sensor!"));
}else{
if(h != persistedh || dht_always){
char hum[6];
dtostrf(h,4,2,hum);
trc(F("Sending Hum to MQTT"));
trc(String(hum));
client.publish(HUM1,hum);
}else{
trc(F("Same hum don't send it"));
}
if(t != persistedt || dht_always){
char temp[6];
dtostrf(t,4,2,temp);
trc(F("Sending Temp to MQTT"));
trc(String(temp));
client.publish(TEMP1,temp);
}else{
trc(F("Same temp don't send it"));
}
}
persistedh = h;
persistedt = t;
}
}
#endif