Merge pull request #8 from jobr97/master

Add "getTemperatureOffset()"

Author: nseidle

examples/Example2_SetOptions/Example2_SetOptions.ino

@@ -45,6 +45,10 @@ void setup()
 
   //Pressure in Boulder, CO is 24.65inHg or 834.74mBar
   airSensor.setAmbientPressure(835); //Current ambient pressure in mBar: 700 to 1200
+
+  float offset = airSensor.getTemperatureOffset(); //Get current temperature offset and save it in the variable "offset"
+  
+  airSensor.setTemperatureOffset(5); //Set temperature offset to 5°C
 }
 
 void loop()
@@ -67,4 +71,3 @@ void loop()
 
   delay(1000);
 }
-

keywords.txt

@@ -19,6 +19,7 @@ beginMeasuring	KEYWORD2
 getCO2	KEYWORD2
 getHumidity	KEYWORD2
 getTemperature	KEYWORD2
+getTemperatureOffset	KEYWORD2
 setMeasurementInterval	KEYWORD2
 setAmbientPressure	KEYWORD2
 setAltitudeCompensation	KEYWORD2

src/SparkFun_SCD30_Arduino_Library.cpp

@@ -123,6 +123,13 @@ void SCD30::setForcedRecalibrationFactor(uint16_t concentration)
   sendCommand(COMMAND_SET_FORCED_RECALIBRATION_FACTOR, concentration);
 }
 
+//Get the temperature offset. See 1.3.8.
+float SCD30::getTemperatureOffset()
+{
+  uint16_t response = readRegister(COMMAND_SET_TEMPERATURE_OFFSET);
+  return (float) response / 100;
+}
+
 //Set the temperature offset. See 1.3.8.
 void SCD30::setTemperatureOffset(float tempOffset)
 {

src/SparkFun_SCD30_Arduino_Library.h

@@ -62,6 +62,7 @@ class SCD30
 	uint16_t getCO2(void);
 	float getHumidity(void);
 	float getTemperature(void);
+	float getTemperatureOffset(void);
 
 	void setMeasurementInterval(uint16_t interval);
 	void setAmbientPressure(uint16_t pressure_mbar);