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Gašper Dobrovoljc
2023-03-11 15:11:03 +01:00
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lib/ST_Anything_AdafruitBME280_TempHumidPress/PS_AdafruitBME280_TempHumidPress.cpp Normal file
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//******************************************************************************************
// File: PS_AdafruitBME280_TempHumidPress.cpp
// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
//
// Summary: PS_AdafruitBME280_TempHumidPress is a class which implements the "Temperature Measurement",
// "Relative Humidity Measurement", and "PressureMewasurement" device capabilities.
// It inherits from the st::PollingSensor class. The current version uses I2C to measure the
// temperature, humidity, and pressure from a BME280 series sensor using the Adafruit_BME280 library.
//
// Create an instance of this class in your sketch's global variable section
// For Example: st::PS_AdafruitBME280_TempHumidPress sensor2(F("bme280_1"), 60, 0, "temperature1", "humidity1", "pressure1", false, 100, 0x77);
//
// st::PS_AdafruitBME280_TempHumidPress() constructor requires the following arguments
// - String &name - REQUIRED - the name of the object - must be unique, but is not used for data transfer for this device
// - 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
// - String strTemp - REQUIRED - name of temperature sensor to send to ST Cloud (e.g."temperature1")
// - String strHumid - REQUIRED - name of humidity sensor to send to ST Cloud (e.g. "humidity1")
// - String strPressure - REQUIRED - name of pressure sensor to send to ST Cloud (e.g. "pressure1")
// - bool In_C - OPTIONAL - true = Report Celsius, false = Report Fahrenheit (Fahrenheit is the default)
// - byte filterConstant - OPTIONAL - Value from 5% to 100% to determine how much filtering/averaging is performed 100 = none (default), 5 = maximum
// - int address - OPTIONAL - I2C address of the sensor (defaults to 0x77 for the BME280)
//
// 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
// ---- --- ----
// 2018-07-01 Dan & Daniel Original Creation
//
//******************************************************************************************
#include "PS_AdafruitBME280_TempHumidPress.h"
#include "Constants.h"
#include "Everything.h"
namespace st
{
//private
//public
//constructor - called in your sketch's global variable declaration section
PS_AdafruitBME280_TempHumidPress::PS_AdafruitBME280_TempHumidPress(const __FlashStringHelper *name, unsigned int interval, int offset, String strTemp, String strHumid, String strPressure, bool In_C, byte filterConstant, int address) :
PollingSensor(name, interval, offset),
bme(),
m_fTemperatureSensorValue(-1.0),
m_fHumiditySensorValue(-1.0),
m_fPressureSensorValue(-1.0),
m_strTemperature(strTemp),
m_strHumidity(strHumid),
m_strPressure(strPressure),
m_In_C(In_C),
m_nAddress(address)
{
//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_AdafruitBME280_TempHumidPress::~PS_AdafruitBME280_TempHumidPress()
{
}
//SmartThings Shield data handler (receives configuration data from ST - polling interval, and adjusts on the fly)
void PS_AdafruitBME280_TempHumidPress::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_AdafruitBME280_TempHumidPress::beSmart set polling interval to "));
Serial.println(s.toInt());
}
}
else {
if (st::PollingSensor::debug)
{
Serial.print(F("PS_AdafruitBME280_TempHumidPress::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_AdafruitBME280_TempHumidPress::init()
{
char buf[5];
sprintf(buf, "%02X", m_nAddress);
bool status = bme.begin(m_nAddress);
if (st::PollingSensor::debug)
{
if (!status) {
Serial.println();
Serial.print("Error: Could not find a valid BME280 sensor at address 0x");
Serial.print(buf);
Serial.println(", check wiring and address setting in sketch!");
Serial.println();
delay(3000);
}
}
getData();
}
//function to get data from sensor and queue results for transfer to ST Cloud
void PS_AdafruitBME280_TempHumidPress::getData()
{
//Humidity
if (m_fHumiditySensorValue == -1.0)
{
Serial.println("First time through Humidity");
m_fHumiditySensorValue = bme.readHumidity(); //first time through, no filtering
}
else
{
m_fHumiditySensorValue = (m_fFilterConstant * bme.readHumidity()) + (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 = (bme.readTemperature() * 1.8) + 32.0; //Scale from Celsius to Farenheit
}
else
{
m_fTemperatureSensorValue = bme.readTemperature();
}
}
else
{
if (m_In_C == false)
{
m_fTemperatureSensorValue = (m_fFilterConstant * ((bme.readTemperature() * 1.8) + 32.0)) + (1 - m_fFilterConstant) * m_fTemperatureSensorValue;
}
else
{
m_fTemperatureSensorValue = (m_fFilterConstant * bme.readTemperature()) + (1 - m_fFilterConstant) * m_fTemperatureSensorValue;
}
}
//Pressure
if (m_fPressureSensorValue == -1.0)
{
Serial.println("First time through Pressure");
m_fPressureSensorValue = (bme.readPressure() / 100.0F); //first time through, no filtering
}
else
{
m_fPressureSensorValue = (m_fFilterConstant * (bme.readPressure() / 100.0F)) + (1 - m_fFilterConstant) * m_fPressureSensorValue;
}
Everything::sendSmartString(m_strTemperature + " " + String(m_fTemperatureSensorValue));
Everything::sendSmartString(m_strHumidity + " " + String(m_fHumiditySensorValue));
Everything::sendSmartString(m_strPressure + " " + String(m_fPressureSensorValue));
}
}

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lib/ST_Anything_AdafruitBME280_TempHumidPress/PS_AdafruitBME280_TempHumidPress.h Normal file
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//******************************************************************************************
// File: PS_AdafruitBME280_TempHumidPress.h
// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
//
// Summary: PS_AdafruitBME280_TempHumidPress is a class which implements the "Temperature Measurement",
// "Relative Humidity Measurement", and "PressureMewasurement" device capabilities.
// It inherits from the st::PollingSensor class. The current version uses I2C to measure the
// temperature, humidity, and pressure from a BME280 series sensor using the Adafruit_BME280 library.
//
// Create an instance of this class in your sketch's global variable section
// For Example: st::PS_AdafruitBME280_TempHumidPress sensor2(F("bme280_1"), 60, 0, "temperature1", "humidity1", "pressure1", false, 100, 0x77);
//
// st::PS_AdafruitBME280_TempHumidPress() constructor requires the following arguments
// - String &name - REQUIRED - the name of the object - must be unique, but is not used for data transfer for this device
// - 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
// - String strTemp - REQUIRED - name of temperature sensor to send to ST Cloud (e.g."temperature1")
// - String strHumid - REQUIRED - name of humidity sensor to send to ST Cloud (e.g. "humidity1")
// - String strPressure - REQUIRED - name of pressure sensor to send to ST Cloud (e.g. "pressure1")
// - bool In_C - OPTIONAL - true = Report Celsius, false = Report Fahrenheit (Fahrenheit is the default)
// - byte filterConstant - OPTIONAL - Value from 5% to 100% to determine how much filtering/averaging is performed 100 = none (default), 5 = maximum
// - int address - OPTIONAL - I2C address of the sensor (defaults to 0x77 for the BME280)
//
// 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
// ---- --- ----
// 2018-07-01 Dan & Daniel Original Creation
//
//******************************************************************************************
#ifndef ST_PS_AdafruitBME280_TempHumidPress_H
#define ST_PS_AdafruitBME280_TempHumidPress_H
#include "PollingSensor.h"
#include <Adafruit_BME280.h>
namespace st
{
class PS_AdafruitBME280_TempHumidPress: public PollingSensor
{
private:
int m_nAddress; //I2C Address of the sensor
float m_fTemperatureSensorValue;//current Temperature value
float m_fHumiditySensorValue; //current Humidity Value
float m_fPressureSensorValue; //current Pressure Value
Adafruit_BME280 bme; //I2C BME280 library object
String m_strTemperature; //name of temparature sensor to use when transferring data to ST Cloud / Hubitat
String m_strHumidity; //name of humidity sensor to use when transferring data to ST Cloud / Hubitat
String m_strPressure; //name of pressure sensor to use when transferring data to ST Cloud / Hubitat
bool m_In_C; //Return temp in C (true or false)
float m_fFilterConstant; //Filter constant % as floating point from 0.00 to 1.00
public:
//constructor - called in your sketch's global variable declaration section
PS_AdafruitBME280_TempHumidPress(const __FlashStringHelper *name, unsigned int interval, int offset, String strTemp = "temperature1", String strHumid = "humidity1", String strPressure = "pressure1", bool In_C = false, byte filterConstant = 100, int address = 0x77);
//destructor
virtual ~PS_AdafruitBME280_TempHumidPress();
//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 float getTemperatureSensorValue() const { return m_fTemperatureSensorValue; }
inline float getHumiditySensorValue() const { return m_fHumiditySensorValue; }
inline float getPressureSensorValue() const { return m_fPressureSensorValue; }
};
}
#endif