72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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* BME280Node.h
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* Homie Node for BME280 sensors using Adafruit BME280 library.
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*
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* Version: 1.1
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* Author: Lübbe Onken (http://github.com/luebbe)
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* Author: Markus Haack (http://github.com/mhaack)
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*/
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#pragma once
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#include "NewPing.h"
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#include "SensorNode.hpp"
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#include "constants.hpp"
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#define DEFAULTPIN -1
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class PingNode : public SensorNode
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{
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public:
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typedef std::function<void()> ChangeHandler;
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private:
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const float cMinDistance = 0.0;
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const float cMaxDistance = 3.0;
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const float cMinimumChange = 0.2;
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static const int MIN_INTERVAL = 1; // in seconds
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const char *cCaption = "• RCW-0001 sensor";
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const char *cIndent = " ◦ ";
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int _triggerPin;
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int _echoPin;
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float _microseconds2meter;
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unsigned long _measurementInterval;
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unsigned long _lastMeasurement;
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unsigned long _publishInterval;
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unsigned long _lastPublish;
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NewPing* sonar;
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float _distance = NAN;
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int _ping_us = 0;
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float _lastDistance = 0;
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ChangeHandler _changeHandler = [](){};
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float getRawEchoTime();
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void setMicrosecondsToMetersFactor(float temperatureCelcius);
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bool signalChange(float distance, float lastDistance);
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void printCaption();
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void send();
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protected:
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virtual void setup() override;
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virtual void loop() override;
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virtual void onReadyToOperate() override;
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static const int DEFAULT_MEASUREMENT_INTERVAL = 1;
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static const int DEFAULT_PUBLISH_INTERVAL = 5;
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public:
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explicit PingNode(const char *name,
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const int triggerPin = DEFAULTPIN,
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const int echoPin = DEFAULTPIN,
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const int measurementInterval = DEFAULT_MEASUREMENT_INTERVAL,
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const int publishInterval = DEFAULT_PUBLISH_INTERVAL);
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float getDistance() const { return _distance; }
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void setTemperature(float temperatureCelcius) { setMicrosecondsToMetersFactor(temperatureCelcius); }
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PingNode& setChangeHandler(const ChangeHandler& changeHandler);
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};
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