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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "binary_output.h"
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namespace esphome {
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namespace output {
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#define LOG_FLOAT_OUTPUT(this) \
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LOG_BINARY_OUTPUT(this) \
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if (this->max_power_ != 1.0f) { \
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ESP_LOGCONFIG(TAG, " Max Power: %.1f%%", this->max_power_ * 100.0f); \
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} \
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if (this->min_power_ != 0.0f) { \
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ESP_LOGCONFIG(TAG, " Min Power: %.1f%%", this->min_power_ * 100.0f); \
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}
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/** Base class for all output components that can output a variable level, like PWM.
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*
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* Floating Point Outputs always use output values in the range from 0.0 to 1.0 (inclusive), where 0.0 means off
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* and 1.0 means fully on. While using floating point numbers might make computation slower, it
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* makes using maths much easier and (in theory) supports all possible bit depths.
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*
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* If you want to create a FloatOutput yourself, you essentially just have to override write_state(float).
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* That method will be called for you with inversion and max-min power and offset to min power already applied.
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*
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* This interface is compatible with BinaryOutput (and will automatically convert the binary states to floating
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* point states for you). Additionally, this class provides a way for users to set a minimum and/or maximum power
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* output
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*/
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class FloatOutput : public BinaryOutput {
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public:
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/** Set the maximum power output of this component.
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*
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* All values are multiplied by max_power - min_power and offset to min_power to get the adjusted value.
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*
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* @param max_power Automatically clamped from 0 or min_power to 1.
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*/
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void set_max_power(float max_power);
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/** Set the minimum power output of this component.
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*
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* All values are multiplied by max_power - min_power and offset by min_power to get the adjusted value.
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*
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* @param min_power Automatically clamped from 0 to max_power or 1.
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*/
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void set_min_power(float min_power);
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/** Sets this output to ignore min_power for a 0 state
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*
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* @param zero True if a 0 state should mean 0 and not min_power.
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*/
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void set_zero_means_zero(bool zero_means_zero);
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/** Set the level of this float output, this is called from the front-end.
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*
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* @param state The new state.
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*/
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void set_level(float state);
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/** Set the frequency of the output for PWM outputs.
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*
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* Implemented only by components which can set the output PWM frequency.
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*
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* @param frequence The new frequency.
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*/
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virtual void update_frequency(float frequency) {}
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// ========== INTERNAL METHODS ==========
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// (In most use cases you won't need these)
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/// Get the maximum power output.
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float get_max_power() const;
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/// Get the minimum power output.
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float get_min_power() const;
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protected:
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/// Implement BinarySensor's write_enabled; this should never be called.
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void write_state(bool state) override;
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virtual void write_state(float state) = 0;
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float max_power_{1.0f};
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float min_power_{0.0f};
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bool zero_means_zero_;
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};
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} // namespace output
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} // namespace esphome
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