David Dollar / HIH-4030

HIH-4030 fork to handle 3.3v input voltage

Fork of HIH-4030 by Simon Barker

hih-4030.cpp@1:f0ae84350631, 2013-08-11 (annotated)

Committer:
ddollar
Date:
Sun Aug 11 19:58:52 2013 +0000
Revision:
1:f0ae84350631
Parent:
0:114b50b41972 
tweak for 3.3v

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simonbarker 0:114b50b41972 1 #include "hih-4030.h"
simonbarker 0:114b50b41972 2
ddollar 1:f0ae84350631 3 HIH4030::HIH4030(PinName pin) {
ddollar 1:f0ae84350631 4 m_analog_in = new AnalogIn(pin);
simonbarker 0:114b50b41972 5 }
simonbarker 0:114b50b41972 6
simonbarker 0:114b50b41972 7 float HIH4030::sensorRH(){
ddollar 1:f0ae84350631 8 return (((m_analog_in->read() * 3.3) - 0.631) / 0.0307);
simonbarker 0:114b50b41972 9 }
simonbarker 0:114b50b41972 10
simonbarker 0:114b50b41972 11 float HIH4030::trueSensorRH(float temperature){
ddollar 1:f0ae84350631 12 return (sensorRH() / (1.0546 - (temperature * 0.00216)));
simonbarker 0:114b50b41972 13 }