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147 lines
4.8 KiB
147 lines
4.8 KiB
// -----------------------------------------------------------------------------
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// Abstract sensor class (other sensor classes extend this class)
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// Copyright (C) 2017-2019 by Xose Pérez <xose dot perez at gmail dot com>
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// -----------------------------------------------------------------------------
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#pragma once
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#include <Arduino.h>
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#include <ArduinoJson.h>
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#include <functional>
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#include "../sensor.h"
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using TSensorCallback = std::function<void(unsigned char, double)>;
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class BaseSensor {
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public:
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// Constructor
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BaseSensor() {}
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// Destructor
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~BaseSensor() {}
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// Initialization method, must be idempotent
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virtual void begin() {}
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// Loop-like method, call it in your main loop
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virtual void tick() {}
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// Pre-read hook (usually to populate registers with up-to-date data)
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virtual void pre() {}
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// Post-read hook (usually to reset things)
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virtual void post() {}
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// Descriptive name of the sensor
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virtual String description() = 0;
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// Address of the sensor (it could be the GPIO or I2C address)
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virtual String address(unsigned char index) = 0;
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// Descriptive name of the slot # index
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virtual String slot(unsigned char index) = 0;
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// Type of sensor
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virtual unsigned char type() { return sensor::type::Base; }
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// Type for slot # index
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virtual unsigned char type(unsigned char index) = 0;
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// Number of decimals for a unit (or -1 for default)
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virtual signed char decimals(sensor::Unit) { return -1; }
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// Current value for slot # index
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virtual double value(unsigned char index) = 0;
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// Generic calibration
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virtual void calibrate() {};
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// Retrieve current instance configuration
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virtual void getConfig(JsonObject& root) {};
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// Save current instance configuration
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virtual void setConfig(JsonObject& root) {};
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// Load the configuration manifest
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static void manifest(JsonArray& root) {};
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// Sensor ID
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unsigned char getID() { return _sensor_id; };
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// Return status (true if no errors)
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bool status() { return 0 == _error; }
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// Return ready status (true for ready)
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bool ready() { return _ready; }
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// Return sensor last internal error
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int error() { return _error; }
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// Number of available slots
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unsigned char count() { return _count; }
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// Hook for event callback
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void onEvent(TSensorCallback fn) { _callback = fn; };
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// Specify units attached to magnitudes
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virtual sensor::Unit units(unsigned char index) {
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switch (type(index)) {
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case MAGNITUDE_TEMPERATURE:
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return sensor::Unit::Celcius;
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case MAGNITUDE_HUMIDITY:
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case MAGNITUDE_POWER_FACTOR:
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return sensor::Unit::Percentage;
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case MAGNITUDE_PRESSURE:
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return sensor::Unit::Hectopascal;
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case MAGNITUDE_CURRENT:
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return sensor::Unit::Ampere;
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case MAGNITUDE_VOLTAGE:
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return sensor::Unit::Volt;
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case MAGNITUDE_POWER_ACTIVE:
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return sensor::Unit::Watt;
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case MAGNITUDE_POWER_APPARENT:
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return sensor::Unit::Voltampere;
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case MAGNITUDE_POWER_REACTIVE:
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return sensor::Unit::VoltampereReactive;
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case MAGNITUDE_ENERGY_DELTA:
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return sensor::Unit::Joule;
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case MAGNITUDE_ENERGY:
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return sensor::Unit::KilowattHour;
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case MAGNITUDE_PM1dot0:
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case MAGNITUDE_PM2dot5:
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return sensor::Unit::MicrogrammPerCubicMeter;
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case MAGNITUDE_CO2:
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case MAGNITUDE_NO2:
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case MAGNITUDE_CO:
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return sensor::Unit::PartsPerMillion;
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case MAGNITUDE_LUX:
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return sensor::Unit::Lux;
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case MAGNITUDE_RESISTANCE:
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return sensor::Unit::Ohm;
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case MAGNITUDE_HCHO:
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return sensor::Unit::MilligrammPerCubicMeter;
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case MAGNITUDE_GEIGER_CPM:
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return sensor::Unit::CountsPerMinute;
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case MAGNITUDE_GEIGER_SIEVERT:
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return sensor::Unit::MicrosievertPerHour;
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case MAGNITUDE_DISTANCE:
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return sensor::Unit::Meter;
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default:
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return sensor::Unit::None;
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}
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}
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protected:
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TSensorCallback _callback = NULL;
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unsigned char _sensor_id = 0x00;
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int _error = 0;
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bool _dirty = true;
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unsigned char _count = 0;
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bool _ready = false;
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};
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