example: Add temperature reader example

Add example showing temperature in degrees and fahrenheit
every second.

Author: QuentinCG

LM75A/examples/LM75A_ShowTemperature/LM75A_ShowTemperature.ino

@@ -0,0 +1,38 @@
+/*
+ * \brief Show temperature in degrees and fahrenheit every second
+ *
+ * \author Quentin Comte-Gaz <quentin@comte-gaz.com>
+ * \date 8 July 2016
+ * \license MIT License (contact me if too restrictive)
+ * \copyright Copyright (c) 2016 Quentin Comte-Gaz
+ * \version 1.0
+ */
+
+#include <LM75A.h>
+
+LM75A lm75a_sensor/*(false, //A0 LM75A pin state
+                   false, //A1 LM75A pin state
+                   false, //A2 LM75A pin state)*/; // Create I2C LM75A instance
+
+void setup(void)
+{
+  Serial.begin(9600);
+  Serial.println("Temperatures will be displayed every second:");
+}
+
+void loop()
+{
+  float temperature_in_degrees = lm75a_sensor.getTemperatureInDegrees();
+
+  if (temperature_in_degrees == INVALID_LM75A_TEMPERATURE) {
+    Serial.println("Error while getting temperature");
+  } else {
+    Serial.print("Temperature: ");
+    Serial.print(temperature_in_degrees);
+    Serial.print(" degrees (");
+    Serial.print(LM75A::degreesToFahrenheit(temperature_in_degrees));
+    Serial.println(" fahrenheit)");
+  }
+
+  delay(1000);
+}