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v1.0.3 - correct use of current coarse gain #3

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Merged
merged 2 commits into from
Dec 3, 2021
Merged

v1.0.3 - correct use of current coarse gain #3

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7228bfe
Correct use of current coarse gain
PaulZC Dec 3, 2021
30bbb36
v1.0.3
PaulZC Dec 3, 2021
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2 changes: 1 addition & 1 deletion library.properties
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
name=SparkFun ACS37800 Power Monitor Arduino Library
version=1.0.2
version=1.0.3
author=SparkFun Electronics
maintainer=SparkFun Electronics
sentence=Library for the Allegro MicroSystems ACS37800 power monitor IC
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3 changes: 0 additions & 3 deletions src/SparkFun_ACS37800_Arduino_Library.cpp
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Expand Up @@ -563,7 +563,6 @@ ACS37800ERR ACS37800::readRMS(float *vRMS, float *iRMS)

//Extract the irms. Convert to current in Amps.
//Datasheet says: "RMS current output. This field is a signed 16-bit fixed point number with 15 fractional bits"
//Extract the vcodes. Convert to voltage in Volts.
union
{
int16_t Signed;
Expand All @@ -581,7 +580,6 @@ ACS37800ERR ACS37800::readRMS(float *vRMS, float *iRMS)
}
amps /= 27500.0; //Convert from codes to the fraction of ADC Full Scale (15-bit)
amps *= _currentSensingRange; //Convert to Amps
amps /= _currentCoarseGain / 4.5; // Correct for the coarse gain
if (_printDebug == true)
{
_debugPort->print(F("readRMS: amps (A, after correction) is "));
Expand Down Expand Up @@ -652,7 +650,6 @@ ACS37800ERR ACS37800::readInstantaneous(float *vInst, float *iInst, float *pInst
}
amps /= 27500.0; //Convert from codes to the fraction of ADC Full Scale
amps *= _currentSensingRange; //Convert to Amps
amps /= _currentCoarseGain / 4.5; // Correct for the coarse gain
if (_printDebug == true)
{
_debugPort->print(F("readInstantaneous: amps (A, after correction) is "));
Expand Down