Revision 0:f0757a25e239, committed 2015-09-13

Comitter:

ClosedCube

Date:

Sun Sep 13 20:39:47 2015 +0000

Commit message:

SHT3x-ARP sensor library added

Changed in this revision

diff -r 000000000000 -r f0757a25e239 SHT3XA.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SHT3XA.cpp	Sun Sep 13 20:39:47 2015 +0000
@@ -0,0 +1,44 @@
+/*
+  Copyright (c) 2015 ClosedCube Limited
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+  and associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+  BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "SHT3XA.h"
+
+#define SHT3XA_RH_FORMULA(x)     -12.5f+125.0f*x
+#define SHT3XA_TEMPC_FORMULA(x)  -66.875f+218.75f*x
+#define SHT3XA_TEMPF_FORMULA(x)  -88.375f+393.75f*x
+
+SHT3XA::SHT3XA(PinName pinRH,PinName pinT) : _pinRH(pinRH),_pinT(pinT)
+{
+}
+
+float SHT3XA::readRH()
+{
+    return SHT3XA_RH_FORMULA(_pinRH.read());
+}
+
+float SHT3XA::readTempC()
+{
+    return SHT3XA_TEMPC_FORMULA(_pinT.read());
+}
+
+float SHT3XA::readTempF()
+{
+    return SHT3XA_TEMPF_FORMULA(_pinT.read());
+}
+

diff -r 000000000000 -r f0757a25e239 SHT3XA.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SHT3XA.h	Sun Sep 13 20:39:47 2015 +0000
@@ -0,0 +1,60 @@
+/*
+  Copyright (c) 2015 ClosedCube Limited
+ 
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+  and associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+ 
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+ 
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+  BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+#ifndef SHT3XA_H
+#define SHT3XA_H
+
+#include "mbed.h"
+
+ 
+//! Library for the Sensirion SHT3X-ARP Analog Humidity & Temperature Sensor.
+/*!
+ SHT3x-ARP is the next generation of Sensirion’s temperature and humidity sensors. 
+ It builds on a new CMOSens sensor chip that is at the heart of Sensirion's new humidity and temperature platform. 
+ The SHT3x-ARP has increased intelligence, reliability and improved accuracy specifications compared to its predecessor. 
+ Its functionality includes enhanced signal processing, temperature and humidity can be read out at different pins. 
+ The DFN package has a footprint of 2.5 x 2.5 mm while keeping a height of 0.9 mm. 
+ This allows for integration of the SHT3x-ARP into a great variety of applications. 
+ Additionally, the wide supply voltage range of 2.4 to 5.5 V guarantees compatibility with diverse assembly situations. 
+ All in all, the SHT3x-ARP incorporates 15 years of knowledge of Sensirion, the leader in the humidity sensor industry.
+*/
+class SHT3XA
+{
+    
+public:
+
+  //!Creates an instance of the class.
+  SHT3XA(PinName pinRH,PinName pinT);
+
+  //!Reads the current humidity level (%RH)
+  float readRH();
+  
+  //!Reads the current temperature in Celsius
+  float readTempC();
+
+  //!Reads the current temperature in Fahrenheit
+  float readTempF();
+  
+private:
+    AnalogIn _pinRH;
+    AnalogIn _pinT;
+ 
+};
+ 
+#endif
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