strain_gauge.h
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	#ifndef __STRAIN_GAUGE_H
	#define __STRAIN_GAUGE_H

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

	/** @defgroup StrainGauge Driver / Strain gauge
	* @brief Driver for a strain gauge.
	*
	* This driver uses an ADC input, ANIN1 or ANIN2 (see ADC).
	* To use this, connect wire the sensor as this:
	* * sensor + -> +5V (pin 1 or 5 of J2).
	* * sensor - -> GND (pin 2 or 6 of J2).
	* * sensor sense -> ANINX+ (pin 3 or 7 of J2).
	* * 2.5V (with a voltage divider between 5V and GND) -> ANINX- (pin 4 or 8 of
	* J2).
	*
	* Set the sensitivity switches to +-33mV.
	*
	* Call sg_Init() first in the initialization code. Then, call sg_Get() to
	* get the force.
	*
	* @addtogroup StrainGauge
	* @{
	*/

	void sg_Init(AdcChannel channel);
	float32_t sg_Get(void);

	/**
	* @}
	*/

	#endif