PicoAnalogCorrection.h

/*
	Arduino Pico Analog Correction
	https://github.com/NuclearPhoenixx/Arduino-Pico-Analog-Correction/
*/

#ifndef PicoAnalogCorrection_H
#define PicoAnalogCorrection_H

#include <Arduino.h>
#include <hardware/adc.h>


#define PS_PIN 23 // Power Save Pin, H to disable, L default

typedef enum {
  PAC_C, // Celsius
  PAC_F, // Fahrenheit
} pactemp_t;


class PicoAnalogCorrection {
	private:
		size_t _max_channel, _gnd_offset, _vcc_offset, _adc_res;
		float _a, _d, _vref;
		bool _adc_init;

		void setCorrectionValues();

	public:
		PicoAnalogCorrection(size_t adc_res=12, float vref=3.3);
		PicoAnalogCorrection(size_t adc_res, size_t gnd_val, size_t vcc_val); // Backwards Compatability
		PicoAnalogCorrection(size_t adc_res, float vref, size_t gnd_val, size_t vcc_val);
		
		void calibrateAdc(size_t gnd_pin, size_t vcc_pin, size_t avg_size=100);
		void returnCalibrationValues();
		
		void analogReadResolution(size_t adc_res);

		int analogRead(size_t pin);
		int analogCRead(size_t pin, size_t avg_size=1);
		float analogReadTemp(pactemp_t type=PAC_C);
};
#endif