20 lines
562 B
C
20 lines
562 B
C
/*
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* @file adc_external.h
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*
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* external ADC is probably broken, at least there is a major mess
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*
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* @date Aug 18, 2013
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#pragma once
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#include "mcp3208.h"
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/* 12 bits, 5V reference */
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#define adcRawValueToScaledVoltage(adc) (5.0f / 4095 * (adc))
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#define adcGetRawValue(channel) getMcp3208adc(channel)
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/* NOTE: no call to getAnalogInputDividerCoefficient() */
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#define adcGetScaledVoltage(msg, channel) (isAdcChannelValid(channel) ? adcRawValueToScaledVoltage(adcGetRawValue(msg, channel), channel) : 66.66)
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