photocell.h

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#pragma once
#include <stdint.h>
#include <stdbool.h>
 
// Default configuration macros (raw ADC range for 12-bit)
#define DEFAULT_SCALING    true
#define DEFAULT_MIN_READ    0
#define DEFAULT_MAX_READ   4095
 
typedef struct {
    bool scaled;              // Whether to scale result to 0–100
    uint16_t min_value;       // Raw ADC value mapped to "0%"
    uint16_t max_value;       // Raw ADC value mapped to "100%"
    uint8_t current_level;    // Scaled result (0–100 or 0–255)
    uint16_t last_raw_value;  // Most recent raw ADC value
} photoCell_t;

void photoCell_init(photoCell_t* sensor, bool scaled, uint16_t min_value, uint16_t max_value);

uint8_t readSensor(photoCell_t* sensor);