//****************************************************************************************** // File: PS_AdafruitBMP280_TempPress.h // Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son) // // Summary: PS_AdafruitBMP280_TempPress is a class which implements the "Temperature Measurement" // and "PressureMewasurement" device capabilities. // It inherits from the st::PollingSensor class. The current version uses I2C to measure the // temperature and pressure from a BMP280 series sensor using the Adafruit_BMP280 library. // // Create an instance of this class in your sketch's global variable section // For Example: st::PS_AdafruitBMP280_TempPress sensor2("BMP280_1", 60, 0, "temperature1", "pressure1", false, 100, 0x77); // // st::PS_AdafruitBMP280_TempPress() 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 strPressure - REQUIRED - name of pressure sensor to send to ST Cloud (e.g. "pressure1") // - 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 // - int address - OPTIONAL - I2C address of the sensor (defaults to 0x77 for the BMP280) // // 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_AdafruitBMP280_TempPress_H #define ST_PS_AdafruitBMP280_TempPress_H #include "PollingSensor.h" #include namespace st { class PS_AdafruitBMP280_TempPress: public PollingSensor { private: int m_nAddress; //I2C Address of the sensor float m_fTemperatureSensorValue;//current Temperature value float m_fPressureSensorValue; //current Pressure Value Adafruit_BMP280 bmp; //I2C BMP280 library object String m_strTemperature; //name of temparature 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_AdafruitBMP280_TempPress(const __FlashStringHelper *name, unsigned int interval, int offset, String strTemp = "temperature1", String strPressure = "pressure1", bool In_C = false, byte filterConstant = 100, int address = 0x77); //destructor virtual ~PS_AdafruitBMP280_TempPress(); //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 getPressureSensorValue() const { return m_fPressureSensorValue; } }; } #endif