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Fix formula in getResistance(): 5.0 is unnecessary here

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Dmitry Frolov 2015-07-08 19:06:07 +06:00
parent a9c0e645e9
commit 88e1e8abc2
1 changed files with 1 additions and 1 deletions
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MQ135.cpp
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@ -52,7 +52,7 @@ float MQ135::getCorrectionFactor(float t, float h) {
/**************************************************************************/ /**************************************************************************/
float MQ135::getResistance() { float MQ135::getResistance() {
int val = analogRead(_pin); int val = analogRead(_pin);
return ((1023./(float)val) * 5. - 1.)*RLOAD; return ((1023./(float)val) - 1.)*RLOAD;
} }
/**************************************************************************/ /**************************************************************************/