This is a Testing library

Revision:
0:eae38e61d806
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LightSensor.h	Mon Nov 28 13:00:21 2016 +0000
@@ -0,0 +1,6 @@
+float readLightSensor(AnalogIn sig, AnalogIn ref)
+{
+    float opVoltage = 3.3/ref.read();
+    float lightSen = opVoltage *sig.read();
+    return lightSen;
+}
\ No newline at end of file