units.h

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#pragma once
 
#include <stdint.h>
#include "maths.h"
 
constexpr int16_t CALIBRATION_TEMPERATURE_OFFSET = 40; 
 
/* TO DO: store *all* temps in storage units: *only* convert to display units during I/O. 
This will avoid a lot of conversions (speed, simplicity) */
 
static constexpr inline uint8_t temperatureAddOffset(int16_t temperature) 
{
  return temperature + CALIBRATION_TEMPERATURE_OFFSET;
}
 
static constexpr inline int16_t temperatureRemoveOffset(uint8_t temperature) 
{
  return (int16_t)temperature - CALIBRATION_TEMPERATURE_OFFSET;
}