diff --git a/FlippR-Driver/src/utility/config.h b/FlippR-Driver/src/utility/config.h
index 7e5245d..051a1bd 100644
--- a/FlippR-Driver/src/utility/config.h
+++ b/FlippR-Driver/src/utility/config.h
@@ -16,6 +16,9 @@
 #define INPUT_SLEEP_DURATION_NANO 800
 #define INPUT_HANDLER_TIMEOUT_MILLI 2000
 
+#define DISPLAY_HIGH 0
+#define DISPLAY_LOW 1
+
 #define PULLDOWN false
 
 #define DISPLAY_SLEEP_TIME_MILLI 1
diff --git a/FlippR-Driver/src/utility/wiringPiTesting.hpp b/FlippR-Driver/src/utility/wiringPiTesting.hpp
index 82d38a8..9edcb00 100644
--- a/FlippR-Driver/src/utility/wiringPiTesting.hpp
+++ b/FlippR-Driver/src/utility/wiringPiTesting.hpp
@@ -2,16 +2,14 @@
 // Created by johannes on 17.07.19.
 //
 
-#ifndef FLIPPR_DRIVER_WIRINGPITESTING_H
-#define FLIPPR_DRIVER_WIRINGPITESTING_H
+#ifndef FLIPPR_DRIVER_TEST_WIRINGPITESTING_H
+#define FLIPPR_DRIVER_TEST_WIRINGPITESTING_H
 
 #include <iostream>
 #include <random>
 
 #define	INPUT 0
 #define	OUTPUT 1
-#define DISPLAY_HIGH 0
-#define DISPLAY_LOW 1
 
 static int wiringPiSetup()
 {
@@ -19,24 +17,24 @@ static int wiringPiSetup()
   return 0;
 }
 
-void pinMode(int pin, int mode)
+static void pinMode(int pin, int mode)
 {
   //std::cout << "Set pin " << pin << " into mode " << mode << std::endl;
 }
 
-int digitalRead(int pin)
+static int digitalRead(int pin)
 {
   //std::cout << "Reading pin " << pin << std::endl
   return rand()%2 == 0 ? 1 : 0;
 }
 
-void digitalWrite(int pin, int value)
+static void digitalWrite(int pin, int value)
 {
   //std::cout << "Writing pin " << pin << " with value " << value << std::endl;
 }
 
 
-int mcp23017Setup(const int pinBase, const int i2cAddress)
+static int mcp23017Setup(const int pinBase, const int i2cAddress)
 {
   //std::cout << "mcp23017Setup called with pinBase " << pinBase << " and i2cAddress " << i2cAddress << std::endl;