tachometer.h
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	#ifndef __TACHOMETER_H
	#define __TACHOMETER_H

	#include "../main.h"
	#include "adc.h"

	#define TAC_RPM_TO_VOLTAGE 0.00052f // According to the Maxon DC Tacho DCT 22 datasheet [V/RPM].
	#define TAC_VOLTAGE_TO_RPM (1/TAC_RPM_TO_VOLTAGE) // [RPM/V].

	/** @defgroup Tachometer Driver / Tachometer
	* @brief Driver for a tachometer.
	*
	* This driver uses an ADC input, ANIN1 or ANIN2 (see ADC).
	* To use this, connect wire the sensor as this:
	* * tacho 1 -> ANINX+ (pin 3 or 7 of J2).
	* * tacho 2 -> ANINX- (pin 4 or 8 of J2).
	*
	* Set the sensitivity switches to +-2V.
	*
	* Call tac_Init() first in the initialization code. Then, call tac_Get() to
	* get the motor speed.
	*
	* @addtogroup Tachometer
	* @{
	*/

	void tac_Init(AdcChannel channel);
	float32_t tac_Get(void);

	/**
	* @}
	*/

	#endif