Merge pull request #1 from nathanchantrell/master

Craig Ringer · Craig Ringer · commit 7fa6ba875160 · 2012-07-16T00:08:11.000-07:00
Fix for DHT_ERROR_CHECKSUM with negative temperatures
diff --git a/DHT22.cpp b/DHT22.cpp
@@ -210,8 +210,7 @@ DHT22_ERROR_t DHT22::readData()
   {
     // Below zero, non standard way of encoding negative numbers!
     // Convert to native negative format.
-    currentTemperature &= 0x7FFF;
-    _lastTemperature = -currentTemperature;
+    _lastTemperature = -currentTemperature & 0x7FFF;
   }
   else
   {

Original file line number	Diff line number	Diff line change
`@@ -210,8 +210,7 @@ DHT22_ERROR_t DHT22::readData()`
`210`	`210`	`{`
`211`	`211`	`// Below zero, non standard way of encoding negative numbers!`
`212`	`212`	`// Convert to native negative format.`
`213`		`- currentTemperature &= 0x7FFF;`
`214`		`- _lastTemperature = -currentTemperature;`
	`213`	`+ _lastTemperature = -currentTemperature & 0x7FFF;`
`215`	`214`	`}`
`216`	`215`	`else`
`217`	`216`	`{`