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Fixed the calculation #2

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Fixed the calculation #2

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97f4d3b
fixed calculations
Nov 16, 2015
c19f721
cast and removed variable
Nov 16, 2015
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23 changes: 9 additions & 14 deletions DS1624.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
26/03/2010 Release 0.1
Written by Federico and Riccardo Galli
http://www.sideralis.org
fixed by Richard Toth http://risko.org
*/

#include "DS1624.h"
Expand All @@ -30,23 +31,17 @@ void DS1624::start()

float DS1624::getTemp()
{
float temperature = 0;
int tempmsb = 0;
int templsb = 0;
int temp2 = 0;

uint16_t t = 0;

Wire.beginTransmission(this->addr);
Wire.write(READ_T);
Wire.requestFrom(this->addr, 2);

if (Wire.available()) {
tempmsb = Wire.read();
}
if (Wire.available()) {
templsb = Wire.read();
}
temp2 = templsb >> 3;
temperature = (float(tempmsb) + (float(temp2) * 0.03125));
if (Wire.available()) t = Wire.read() << 8;
if (Wire.available()) t |= Wire.read();

Wire.endTransmission();
return temperature;

t >>= 4;
return (float)((t & 0x800 ? (t & 0x7ff) - 0x800 : t) / 16.0);
}