Rune Harlyk
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
#pragma once
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#include <list>
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#include <SPI.h>
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#include <Wire.h>
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#include <ArduinoJson.h>
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#include <utils/math_utils.h>
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#include <Adafruit_BMP085_U.h>
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#include <Adafruit_Sensor.h>
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#include <peripherals/sensor.hpp>
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struct BarometerMsg : public SensorMessageBase {
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float pressure {-1};
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float altitude {-1};
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float temperature {-1};
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bool success {false};
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void toJson(JsonVariant v) const override {
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JsonArray arr = v.to<JsonArray>();
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arr.add(pressure);
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arr.add(altitude);
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arr.add(temperature);
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arr.add(success);
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}
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void fromJson(JsonVariantConst v) override {
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JsonArrayConst arr = v.as<JsonArrayConst>();
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pressure = arr[0] | -1.0f;
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altitude = arr[1] | -1.0f;
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temperature = arr[2] | -1.0f;
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success = arr[3] | false;
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}
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friend void toJson(JsonVariant v, BarometerMsg const& a) { a.toJson(v); }
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};
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class Barometer : public SensorBase<BarometerMsg> {
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public:
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bool initialize() override {
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_msg.success = _bmp.begin();
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return _msg.success;
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}
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bool update() override {
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if (!_msg.success) return false;
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_bmp.getTemperature(&_msg.temperature);
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sensors_event_t event;
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_bmp.getEvent(&event);
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_msg.pressure = event.pressure;
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_msg.altitude = _bmp.pressureToAltitude(seaLevelPressure, _msg.pressure);
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return true;
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}
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float getPressure() { return _msg.pressure; }
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float getAltitude() { return _msg.altitude; }
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float getTemperature() { return _msg.temperature; }
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bool active() { return _msg.success; }
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private:
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Adafruit_BMP085_Unified _bmp {10085};
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const float seaLevelPressure = SENSORS_PRESSURE_SEALEVELHPA;
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}; |