89 lines
3.6 KiB
C
89 lines
3.6 KiB
C
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#ifndef POWER_MGT_H
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#define POWER_MGT_H
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#include "FastLED.h"
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#include "pixeltypes.h"
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FASTLED_NAMESPACE_BEGIN
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///@defgroup Power Power management functions
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/// functions used to limit the amount of power used by FastLED
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///@{
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// Power Control setup functions
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//
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// Example:
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// set_max_power_in_volts_and_milliamps( 5, 400);
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//
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/// Set the maximum power used in milliamps for a given voltage
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/// @deprecated - use FastLED.setMaxPowerInVoltsAndMilliamps()
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void set_max_power_in_volts_and_milliamps( uint8_t volts, uint32_t milliamps);
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/// Set the maximum power used in watts
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/// @deprecated - use FastLED.setMaxPowerInMilliWatts
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void set_max_power_in_milliwatts( uint32_t powerInmW);
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/// Select a pin with an led that will be flashed to indicate that power management
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/// is pulling down the brightness
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void set_max_power_indicator_LED( uint8_t pinNumber); // zero = no indicator LED
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// Power Control 'show' and 'delay' functions
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//
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// These are drop-in replacements for FastLED.show() and FastLED.delay()
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// In order to use these, you have to actually replace your calls to
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// FastLED.show() and FastLED.delay() with these two functions.
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//
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// Example:
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// // was: FastLED.show();
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// // now is:
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// show_at_max_brightness_for_power();
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//
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/// Similar to FastLED.show, but pre-adjusts brightness to keep below the power
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/// threshold.
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/// @deprecated this has now been moved to FastLED.show();
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void show_at_max_brightness_for_power();
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/// Similar to FastLED.delay, but pre-adjusts brightness to keep below the power
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/// threshold.
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/// @deprecated this has now been rolled into FastLED.delay();
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void delay_at_max_brightness_for_power( uint16_t ms);
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// Power Control internal helper functions
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/// calculate_unscaled_power_mW tells you how many milliwatts the current
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/// LED data would draw at brightness = 255.
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///
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uint32_t calculate_unscaled_power_mW( const CRGB* ledbuffer, uint16_t numLeds);
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/// calculate_max_brightness_for_power_mW tells you the highest brightness
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/// level you can use and still stay under the specified power budget for
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/// a given set of leds. It takes a pointer to an array of CRGB objects, a
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/// count, a 'target brightness' which is the brightness you'd ideally like
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/// to use, and the max power draw desired in milliwatts. The result from
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/// this function will be no higher than the target_brightess you supply, but may be lower.
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uint8_t calculate_max_brightness_for_power_mW(const CRGB* ledbuffer, uint16_t numLeds, uint8_t target_brightness, uint32_t max_power_mW);
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/// calculate_max_brightness_for_power_mW tells you the highest brightness
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/// level you can use and still stay under the specified power budget for
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/// a given set of leds. It takes a pointer to an array of CRGB objects, a
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/// count, a 'target brightness' which is the brightness you'd ideally like
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/// to use, and the max power in volts and milliamps. The result from this
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/// function will be no higher than the target_brightess you supply, but may be lower.
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uint8_t calculate_max_brightness_for_power_vmA(const CRGB* ledbuffer, uint16_t numLeds, uint8_t target_brightness, uint32_t max_power_V, uint32_t max_power_mA);
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/// calculate_max_brightness_for_power_mW tells you the highest brightness
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/// level you can use and still stay under the specified power budget. It
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/// takes a 'target brightness' which is the brightness you'd ideally like
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/// to use. The result from this function will be no higher than the
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/// target_brightess you supply, but may be lower.
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uint8_t calculate_max_brightness_for_power_mW( uint8_t target_brightness, uint32_t max_power_mW);
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FASTLED_NAMESPACE_END
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///@}
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// POWER_MGT_H
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#endif
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