69 lines
2.8 KiB
C
69 lines
2.8 KiB
C
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//******************************************************************************************
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// File: PS_MQ2_Smoke.h
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// Authors: Dan G Ogorchock & Daniel J Ogorchock (Father and Son)
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//
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// Summary: PS_MQ2_Smoke is a class which implements the SmartThings "Smoke Detector" device capability.
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// It inherits from the st::PollingSensor class. The current version uses an analog input to measure the
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// value from the MQ2 sensor.
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//
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// Create an instance of this class in your sketch's global variable section
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// For Example: st::PS_MQ2_Smoke sensor1("smoke1", 10, 0, PIN_MQ2_SMOKE, 300);
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//
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// st::PS_MQ2_Smoke() constructor requires the following arguments
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// - String &name - REQUIRED - the name of the object - must match the Groovy ST_Anything DeviceType tile name e.g. "smoke1", "smoke2", etc...
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// - long interval - REQUIRED - the polling interval in seconds
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// - long offset - REQUIRED - the polling interval offset in seconds - used to prevent all polling sensors from executing at the same time
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// - byte pin - REQUIRED - the Arduino Pin to be used as a digital output
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// - int sensorLimit - REQUIRED - if sensor reads value above this limit, report Smoke Detected (typical range is 0 to 1023 on Arduino Analog Input)
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//
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// This class supports receiving configuration data from the SmartThings cloud via the ST App. A user preference
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// can be configured in your phone's ST App, and then the "Configure" tile will send the data for all sensors to
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// the Arduino. For PollingSensors, this data is handled in the beSMart() function.
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//
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// TODO: Determine a method to persist the ST Cloud's Polling Interval data
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//
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// Change History:
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//
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// Date Who What
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// ---- --- ----
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// 2017-07-04 Dan Ogorchock Original Creation
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//
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//
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//******************************************************************************************
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#ifndef ST_PS_MQ2_SMOKE_H
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#define ST_PS_MQ2_SMOKE_H
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#include "PollingSensor.h"
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namespace st
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{
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class PS_MQ2_Smoke: public PollingSensor
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{
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private:
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byte m_nAnalogInputPin;
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int m_nSensorValue;
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int m_nSensorLimit;
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public:
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//constructor - called in your sketch's global variable declaration section
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PS_MQ2_Smoke(const __FlashStringHelper *name, unsigned int interval, int offset, byte analogInputPin, int sensorLimit);
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//destructor
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virtual ~PS_MQ2_Smoke();
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//SmartThings Shield data handler (receives configuration data from ST - polling interval, and adjusts on the fly)
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virtual void beSmart(const String &str);
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//function to get data from sensor and queue results for transfer to ST Cloud
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virtual void getData();
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//gets
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inline byte getPin() const {return m_nAnalogInputPin;}
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inline byte getSensorValue() const {return m_nSensorValue;}
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//sets
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void setPin(byte pin);
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};
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}
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#endif
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