lightness_to_pwm.h File Reference

Handle non-linearity in human eye brightness sensitivity. More...

#include <stdint.h>
#include "heivs/error.h"

Include dependency graph for lightness_to_pwm.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

#define	LIGHTNESS_PWM_STEP
	Number a step for a pwm using lightness_to_pwm.
uint8_t	lightness_to_pwm (uint8_t percentage)
	PWM value for driving a LED expressed as perceived percentage. More...

Detailed Description

Handle non-linearity in human eye brightness sensitivity.

Author

marc dot pignat at hevs dot ch

Definition in file lightness_to_pwm.h.

Function Documentation

uint8_t lightness_to_pwm

(

uint8_t

percentage

)

PWM value for driving a LED expressed as perceived percentage.

Parameters

percentage

expected of luminosity (0..100)

Returns

the value to be put in a 0..LIGHTNESS_PWM_STEP pwm

Definition at line 39 of file lightness_to_pwm.c.

References ARRAY_SIZE.