esphome/esphome/components/integration/integration_sensor.h
Otto Winter 9a40d6ef50
Integration sensor use double precision (#715)
Fixes https://github.com/esphome/issues/issues/534

Kept the RTC value as a float in order not to introduce a breaking preferences change.
2019-10-17 21:35:31 +02:00

86 lines
2.4 KiB
C++

#pragma once
#include "esphome/core/component.h"
#include "esphome/core/preferences.h"
#include "esphome/core/automation.h"
#include "esphome/components/sensor/sensor.h"
namespace esphome {
namespace integration {
enum IntegrationSensorTime {
INTEGRATION_SENSOR_TIME_MILLISECOND = 0,
INTEGRATION_SENSOR_TIME_SECOND,
INTEGRATION_SENSOR_TIME_MINUTE,
INTEGRATION_SENSOR_TIME_HOUR,
INTEGRATION_SENSOR_TIME_DAY,
};
enum IntegrationMethod {
INTEGRATION_METHOD_TRAPEZOID = 0,
INTEGRATION_METHOD_LEFT,
INTEGRATION_METHOD_RIGHT,
};
class IntegrationSensor : public sensor::Sensor, public Component {
public:
void setup() override;
void dump_config() override;
float get_setup_priority() const override { return setup_priority::DATA; }
void set_sensor(Sensor *sensor) { sensor_ = sensor; }
void set_time(IntegrationSensorTime time) { time_ = time; }
void set_method(IntegrationMethod method) { method_ = method; }
void set_restore(bool restore) { restore_ = restore; }
void reset() { this->publish_and_save_(0.0f); }
protected:
void process_sensor_value_(float value);
float get_time_factor_() {
switch (this->time_) {
case INTEGRATION_SENSOR_TIME_MILLISECOND:
return 1.0f;
case INTEGRATION_SENSOR_TIME_SECOND:
return 1.0f / 1000.0f;
case INTEGRATION_SENSOR_TIME_MINUTE:
return 1.0f / 60000.0f;
case INTEGRATION_SENSOR_TIME_HOUR:
return 1.0f / 3600000.0f;
case INTEGRATION_SENSOR_TIME_DAY:
return 1.0f / 86400000.0f;
default:
return 0.0f;
}
}
void publish_and_save_(double result) {
this->result_ = result;
this->publish_state(result);
float result_f = result;
this->rtc_.save(&result_f);
}
std::string unit_of_measurement() override;
std::string icon() override { return this->sensor_->get_icon(); }
int8_t accuracy_decimals() override { return this->sensor_->get_accuracy_decimals() + 2; }
sensor::Sensor *sensor_;
IntegrationSensorTime time_;
IntegrationMethod method_;
bool restore_;
ESPPreferenceObject rtc_;
uint32_t last_update_;
double result_{0.0f};
float last_value_{0.0f};
};
template<typename... Ts> class ResetAction : public Action<Ts...> {
public:
explicit ResetAction(IntegrationSensor *parent) : parent_(parent) {}
void play(Ts... x) override { this->parent_->reset(); }
protected:
IntegrationSensor *parent_;
};
} // namespace integration
} // namespace esphome