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Gašper Dobrovoljc
2023-03-11 15:11:03 +01:00
commit ec125f27db
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250
lib/ST_Anything_TemperatureHumidity/PS_TemperatureHumidity.cpp Normal file
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//******************************************************************************************
// File: PS_TemperatureHumidity.cpp
// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
//
// Summary: PS_TemperatureHumidity is a class which implements both the SmartThings "Temperature Measurement"
// and "Relative Humidity Measurement" device capabilities.
// It inherits from the st::PollingSensor class. The current version uses a digital input to measure the
// temperature and humidity from a DHT series sensor. This was tested with both the DHT11 and DHT22.
//
// Create an instance of this class in your sketch's global variable section
// For Example: st::PS_TemperatureHumidity sensor2(F("temphumid1"), 120, 7, PIN_TEMPERATUREHUMIDITY, st::PS_TemperatureHumidity::DHT22, "temperature1", "humidity1", false);
//
// st::PS_TemperatureHumidity() constructor requires the following arguments
// - String &name - REQUIRED - the name of the object - must match the Groovy ST_Anything DeviceType tile name
// - long interval - REQUIRED - the polling interval in seconds
// - long offset - REQUIRED - the polling interval offset in seconds - used to prevent all polling sensors from executing at the same time
// - byte pin - REQUIRED - the Arduino Pin to be used as a digital output
// - DHT_SENSOR DHTSensorType - REQUIRED - the type of DHT sensor (DHT11, DHT21, DHT22, DHT33, or DHT44)
// - String strTemp - OPTIONAL - name of temperature sensor to send to ST Cloud (defaults to "temperature")
// - String strHumid - OPTIONAL - name of humidity sensor to send to ST Cloud (defaults to "humidity")
// - bool In_C - OPTIONAL - true = Report Celsius, false = Report Farenheit (Farentheit is the default)
// - byte filterConstant - OPTIONAL - Value from 5% to 100% to determine how much filtering/averaging is performed 100 = none (default), 5 = maximum
//
// Filtering/Averaging
//
// Filtering the value sent to ST is performed per the following equation
//
// filteredValue = (filterConstant/100 * currentValue) + ((1 - filterConstant/100) * filteredValue)
//
// This class supports receiving configuration data from the SmartThings cloud via the ST App. A user preference
// can be configured in your phone's ST App, and then the "Configure" tile will send the data for all sensors to
// the ST Shield. For PollingSensors, this data is handled in the beSMart() function.
//
// TODO: Determine a method to persist the ST Cloud's Polling Interval data
//
// Change History:
//
// Date Who What
// ---- --- ----
// 2015-01-03 Dan & Daniel Original Creation
// 2015-01-17 Dan Ogorchock Added optional temperature and humidity device names in constructor to allow multiple Temp/Humidity sensors
// 2015-01-17 Dan Ogorchock Added optional temperature and humidity device names in constructor to allow multiple Temp/Humidity sensors
// 2015-03-29 Dan Ogorchock Optimized use of the DHT library (made it static) to reduce SRAM memory usage at runtime.
// 2017-06-27 Dan Ogorchock Added optional Celsius reading argument
// 2017-08-17 Dan Ogorchock Added optional filter constant argument and to transmit floating point values to SmartThings
//
//******************************************************************************************
#include "PS_TemperatureHumidity.h"
#include "Constants.h"
#include "Everything.h"
#include <dht.h>
namespace st
{
//private
//public
//constructor - called in your sketch's global variable declaration section
PS_TemperatureHumidity::PS_TemperatureHumidity(const __FlashStringHelper *name, unsigned int interval, int offset, byte digitalInputPin, DHT_SENSOR DHTSensorType, String strTemp, String strHumid, bool In_C, byte filterConstant) :
PollingSensor(name, interval, offset),
m_fTemperatureSensorValue(-1.0),
m_fHumiditySensorValue(-1.0),
m_bDHTSensorType(DHTSensorType),
m_strTemperature(strTemp),
m_strHumidity(strHumid),
m_In_C(In_C)
{
setPin(digitalInputPin);
//check for upper and lower limit and adjust accordingly
if ((filterConstant <= 0) || (filterConstant >= 100))
{
m_fFilterConstant = 1.0;
}
else if (filterConstant <= 5)
{
m_fFilterConstant = 0.05;
}
else
{
m_fFilterConstant = float(filterConstant) / 100;
}
}
//destructor
PS_TemperatureHumidity::~PS_TemperatureHumidity()
{
}
//SmartThings Shield data handler (receives configuration data from ST - polling interval, and adjusts on the fly)
void PS_TemperatureHumidity::beSmart(const String &str)
{
String s = str.substring(str.indexOf(' ') + 1);
if (s.toInt() != 0) {
st::PollingSensor::setInterval(s.toInt() * 1000);
if (st::PollingSensor::debug) {
Serial.print(F("PS_TemperatureHumidity::beSmart set polling interval to "));
Serial.println(s.toInt());
}
}
else {
if (st::PollingSensor::debug)
{
Serial.print(F("PS_TemperatureHumidity::beSmart cannot convert "));
Serial.print(s);
Serial.println(F(" to an Integer."));
}
}
}
//initialization routine - get first set of readings and send to ST cloud
void PS_TemperatureHumidity::init()
{
delay(1500); //Needed to prevent "Unknown Error" on first read of DHT Sensor
getData();
}
//function to get data from sensor and queue results for transfer to ST Cloud
void PS_TemperatureHumidity::getData()
{
// READ DATA
int8_t chk = 0;
switch (m_bDHTSensorType) {
case DHT11:
//Serial.println(F("PS_TemperatureHumidity: DTH11 Read"));
chk = DHT.read11(m_nDigitalInputPin);
break;
case DHT21:
//Serial.println(F("PS_TemperatureHumidity: DTH21 Read"));
chk = DHT.read21(m_nDigitalInputPin);
break;
case DHT22:
//Serial.println(F("PS_TemperatureHumidity: DTH22 Read"));
chk = DHT.read22(m_nDigitalInputPin);
break;
case DHT33:
//Serial.println(F("PS_TemperatureHumidity: DTH33 Read"));
chk = DHT.read33(m_nDigitalInputPin);
break;
case DHT44:
//Serial.println(F("PS_TemperatureHumidity: DTH44 Read"));
chk = DHT.read44(m_nDigitalInputPin);
break;
default:
Serial.println(F("PS_TemperatureHumidity: Invalid DHT Sensor Type"));
}
switch (chk)
{
case DHTLIB_OK:
//Humidity
if (m_fHumiditySensorValue == -1.0)
{
Serial.println("First time through Humidity");
m_fHumiditySensorValue = DHT.humidity; //first time through, no filtering
}
else
{
m_fHumiditySensorValue = (m_fFilterConstant * DHT.humidity) + (1 - m_fFilterConstant) * m_fHumiditySensorValue;
}
//Temperature
if (m_fTemperatureSensorValue == -1.0)
{
Serial.println("First time through Temperature");
//first time through, no filtering
if (m_In_C == false)
{
m_fTemperatureSensorValue = (DHT.temperature * 1.8) + 32.0; //Scale from Celsius to Farenheit
}
else
{
m_fTemperatureSensorValue = DHT.temperature;
}
}
else
{
if (m_In_C == false)
{
m_fTemperatureSensorValue = (m_fFilterConstant * ((DHT.temperature * 1.8) + 32.0)) + (1 - m_fFilterConstant) * m_fTemperatureSensorValue;
}
else
{
m_fTemperatureSensorValue = (m_fFilterConstant * DHT.temperature) + (1 - m_fFilterConstant) * m_fTemperatureSensorValue;
}
}
break;
case DHTLIB_ERROR_CHECKSUM:
if (st::PollingSensor::debug) {
Serial.println(F("PS_TemperatureHumidity: DHT Checksum error"));
}
break;
case DHTLIB_ERROR_TIMEOUT:
if (st::PollingSensor::debug) {
Serial.println(F("PS_TemperatureHumidity: DHT Time out error"));
}
break;
//case DHTLIB_ERROR_CONNECT:
// if (st::PollingSensor::debug) {
// Serial.println(F("PS_TemperatureHumidity: DHT Connect error"));
// }
// break;
//case DHTLIB_ERROR_ACK_L:
// if (st::PollingSensor::debug) {
// Serial.println(F("PS_TemperatureHumidity: DHT Ack Low error"));
// }
// break;
//case DHTLIB_ERROR_ACK_H:
// if (st::PollingSensor::debug) {
// Serial.println(F("PS_TemperatureHumidity: DHT Ack High error"));
// }
// break;
default:
if (st::PollingSensor::debug) {
Serial.println(F("PS_TemperatureHumidity: DHT Unknown error"));
}
break;
}
// DISPLAY DATA
//Serial.print(m_nHumiditySensorValue, 1);
//Serial.print(F(",\t\t"));
//Serial.print(m_nTemperatureSensorValue, 1);
//Serial.println();
Everything::sendSmartString(m_strTemperature + " " + String(m_fTemperatureSensorValue));
Everything::sendSmartString(m_strHumidity + " " + String(m_fHumiditySensorValue));
}
void PS_TemperatureHumidity::setPin(byte pin)
{
m_nDigitalInputPin=pin;
}
//initialize static members
dht PS_TemperatureHumidity::DHT; //DHT library object
}

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lib/ST_Anything_TemperatureHumidity/PS_TemperatureHumidity.h Normal file
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//******************************************************************************************
// File: PS_TemperatureHumidity.h
// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
//
// Summary: PS_TemperatureHumidity is a class which implements both the SmartThings "Temperature Measurement"
// and "Relative Humidity Measurement" device capabilities.
// It inherits from the st::PollingSensor class. The current version uses a digital input to measure the
// temperature and humidity from a DHT series sensor. This was tested with both the DHT11 and DHT22.
//
// Create an instance of this class in your sketch's global variable section
// For Example: st::PS_TemperatureHumidity sensor2(F("temphumid1"), 120, 7, PIN_TEMPERATUREHUMIDITY, st::PS_TemperatureHumidity::DHT22, "temperature1", "humidity1", false);
//
// st::PS_TemperatureHumidity() constructor requires the following arguments
// - String &name - REQUIRED - the name of the object - must match the Groovy ST_Anything DeviceType tile name
// - long interval - REQUIRED - the polling interval in seconds
// - long offset - REQUIRED - the polling interval offset in seconds - used to prevent all polling sensors from executing at the same time
// - byte pin - REQUIRED - the Arduino Pin to be used as a digital output
// - DHT_SENSOR DHTSensorType - REQUIRED - the type of DHT sensor (DHT11, DHT21, DHT22, DHT33, or DHT44)
// - String strTemp - OPTIONAL - name of temperature sensor to send to ST Cloud (defaults to "temperature")
// - String strHumid - OPTIONAL - name of humidity sensor to send to ST Cloud (defaults to "humidity")
// - bool In_C - OPTIONAL - true = Report Celsius, false = Report Farenheit (Farentheit is the default)
// - byte filterConstant - OPTIONAL - Value from 5% to 100% to determine how much filtering/averaging is performed 100 = none (default), 5 = maximum
//
// Filtering/Averaging
//
// Filtering the value sent to ST is performed per the following equation
//
// filteredValue = (filterConstant/100 * currentValue) + ((1 - filterConstant/100) * filteredValue)
//
// This class supports receiving configuration data from the SmartThings cloud via the ST App. A user preference
// can be configured in your phone's ST App, and then the "Configure" tile will send the data for all sensors to
// the ST Shield. For PollingSensors, this data is handled in the beSMart() function.
//
// TODO: Determine a method to persist the ST Cloud's Polling Interval data
//
// Change History:
//
// Date Who What
// ---- --- ----
// 2015-01-03 Dan & Daniel Original Creation
// 2015-01-17 Dan Ogorchock Added optional temperature and humidity device names in constructor to allow multiple Temp/Humidity sensors
// 2015-01-17 Dan Ogorchock Added optional temperature and humidity device names in constructor to allow multiple Temp/Humidity sensors
// 2015-03-29 Dan Ogorchock Optimized use of the DHT library (made it static) to reduce SRAM memory usage at runtime.
// 2017-06-27 Dan Ogorchock Added optional Celsius reading argument
// 2017-08-17 Dan Ogorchock Added optional filter constant argument and to transmit floating point values to SmartThings
//
//******************************************************************************************
#ifndef ST_PS_TEMPERATUREHUMIDITY_H
#define ST_PS_TEMPERATUREHUMIDITY_H
#include "PollingSensor.h"
#include <dht.h>
namespace st
{
class PS_TemperatureHumidity: public PollingSensor
{
private:
byte m_nDigitalInputPin; //digital pin connected to the DHT sensor
float m_fTemperatureSensorValue;//current Temperature value
float m_fHumiditySensorValue; //current Humidity Value
static dht DHT; //DHT library object
byte m_bDHTSensorType; //DHT Sensor Type
String m_strTemperature; //name of temparature sensor to use when transferring data to ST Cloud
String m_strHumidity; //name of temparature sensor to use when transferring data to ST Cloud
bool m_In_C; //Return temp in C
float m_fFilterConstant; //Filter constant % as floating point from 0.00 to 1.00
public:
//types of DHT sensors supported by the dht library
enum DHT_SENSOR { DHT11, DHT21, DHT22, DHT33, DHT44 };
//constructor - called in your sketch's global variable declaration section
PS_TemperatureHumidity(const __FlashStringHelper *name, unsigned int interval, int offset, byte digitalInputPin, DHT_SENSOR DHTSensorType, String strTemp = "temperature1", String strHumid = "humidity1", bool In_C = false, byte filterConstant = 100);
//destructor
virtual ~PS_TemperatureHumidity();
//SmartThings Shield data handler (receives configuration data from ST - polling interval, and adjusts on the fly)
virtual void beSmart(const String &str);
//initialization routine
virtual void init();
//function to get data from sensor and queue results for transfer to ST Cloud
virtual void getData();
//gets
inline byte getPin() const { return m_nDigitalInputPin; }
inline float getTemperatureSensorValue() const { return m_fTemperatureSensorValue; }
inline float getHumiditySensorValue() const { return m_fHumiditySensorValue; }
//sets
void setPin(byte pin);
};
}
#endif