diff --git a/ADIS_tinyK22_SplitFlap/source/application.c b/ADIS_tinyK22_SplitFlap/source/application.c
index 9e674dc..0b06e45 100644
--- a/ADIS_tinyK22_SplitFlap/source/application.c
+++ b/ADIS_tinyK22_SplitFlap/source/application.c
@@ -5,30 +5,79 @@
  *      Author: jonas
  */
 
-
 #include "application.h"
-#include "fsl_gpio.h"
-#include "pin_mux.h"
 #include "McuWait.h"
+#include "McuLED.h"
+#include "McuGPIO.h"
+#include "McuULN2003.h"
+#include "splitflap_pins.h"
+#include "splitflap.h"
 
-/* manual method, without McuWait:
-static void delay(void)
-{
-	uint32_t i;
+/* blue led pins */
+#define LED_BLUE_GPIO GPIOC
+#define LED_BLUE_PORT PORTC
+#define LED_BLUE_PIN 2U
 
-	for (i = 0; i < 500000; ++i) {
-		__asm volatile ("nop");
-	}
-}
-*/
+static McuLED_Handle_t LED_blue;
+static SF_Handle_t splitflap0;
 
+/* Application initialization */
 void App_Init(void){
-	McuWait_Init();
+	/* configure blue LED */
+	McuLED_Config_t config;
+	McuLED_GetDefaultConfig(&config);
+	config.isLowActive = true;
+	config.isOnInit = false;
+	config.hw.gpio = LED_BLUE_GPIO;
+	config.hw.port = LED_BLUE_PORT;
+	config.hw.pin = LED_BLUE_PIN;
+	LED_blue = McuLED_InitLed(&config);
+
+	/* configure the motor */
+	McuULN2003_Config_t motor0Config;
+	McuULN2003_GetDefaultConfig(&motor0Config);
+	motor0Config.hw[0].gpio = STEPPER_MOTOR0_IN1_GPIO;
+	motor0Config.hw[0].port = STEPPER_MOTOR0_IN1_PORT;
+	motor0Config.hw[0].pin 	= STEPPER_MOTOR0_IN1_PIN;
+	motor0Config.hw[1].gpio = STEPPER_MOTOR0_IN2_GPIO;
+	motor0Config.hw[1].port = STEPPER_MOTOR0_IN2_PORT;
+	motor0Config.hw[1].pin 	= STEPPER_MOTOR0_IN2_PIN;
+	motor0Config.hw[2].gpio = STEPPER_MOTOR0_IN3_GPIO;
+	motor0Config.hw[2].port = STEPPER_MOTOR0_IN3_PORT;
+	motor0Config.hw[2].pin	= STEPPER_MOTOR0_IN3_PIN;
+	motor0Config.hw[3].gpio = STEPPER_MOTOR0_IN4_GPIO;
+	motor0Config.hw[3].port = STEPPER_MOTOR0_IN4_PORT;
+	motor0Config.hw[3].pin 	= STEPPER_MOTOR0_IN4_PIN;
+	motor0Config.inverted 	= true;
+
+	/* configure magnetic sensor for motor 0 */
+	McuGPIO_Config_t magSensor0Config;
+	McuGPIO_GetDefaultConfig(&magSensor0Config);
+	magSensor0Config.hw.gpio 	= MAG_MOTOR0_GPIO;
+	magSensor0Config.hw.port 	= MAG_MOTOR0_PORT;
+	magSensor0Config.hw.pin 	= MAG_MOTOR0_PIN;
+	magSensor0Config.isInput = true;
+	magSensor0Config.hw.pull = McuGPIO_PULL_UP;
+
+	/* create config instance for splitflap 0 */
+	SF_Config_t sfConfig;
+	sfConfig.magSensorConfig = magSensor0Config;
+	sfConfig.motorConfig = motor0Config;
+
+	/* initialize splitflap 0 */
+	splitflap0 = SF_Init(&sfConfig, 0);
 }
 
+/* Application run */
 void App_Run(void){
     while(1) {
-    	GPIO_PortToggle(BOARD_INITPINS_LED_BLUE_GPIO, BOARD_INITPINS_LED_BLUE_GPIO_PIN_MASK);
+    	McuLED_Toggle(LED_blue);
     	McuWait_Waitms(100); /* wait for 100 ms */
     }
 }
+
+
+/* Application de-initialization */
+void App_Deinit(void){
+
+}
diff --git a/ADIS_tinyK22_SplitFlap/source/application.h b/ADIS_tinyK22_SplitFlap/source/application.h
index 8d730df..bc97693 100644
--- a/ADIS_tinyK22_SplitFlap/source/application.h
+++ b/ADIS_tinyK22_SplitFlap/source/application.h
@@ -8,8 +8,19 @@
 #ifndef APPLICATION_H_
 #define APPLICATION_H_
 
+#include "splitflap_pins.h"
+
+#define LED_BLUE_GPIO GPIOC
+#define LED_BLUE_PORT PORTC
+#define LED_BLUE_PIN 2U
+
+/* Application initialization */
 void App_Init(void);
 
+/* Application run */
 void App_Run(void);
 
+/* Application de-initialization */
+void App_Deinit(void);
+
 #endif /* APPLICATION_H_ */
diff --git a/ADIS_tinyK22_SplitFlap/source/main.c b/ADIS_tinyK22_SplitFlap/source/main.c
index d5b550d..1ec356c 100644
--- a/ADIS_tinyK22_SplitFlap/source/main.c
+++ b/ADIS_tinyK22_SplitFlap/source/main.c
@@ -41,6 +41,7 @@
 #include "fsl_debug_console.h"
 /* TODO: insert other include files here. */
 #include "application.h"
+#include "platform.h"
 /* TODO: insert other definitions and declarations here. */
 
 
@@ -58,11 +59,25 @@ int main(void) {
     BOARD_InitDebugConsole();
 #endif
 
-    PRINTF("Hello World\n");
+    /* init platform */
+    PRINTF("Initializing Platform...\n");
+    PL_Init();
+
+    /* init app */
+    PRINTF("Initializing App...\n");
     App_Init();
 
     /* run app */
+    PRINTF("Running App...\n");
     App_Run();
 
+    /* deinit app */
+    //PRINTF("De-Initializing App...\n");
+    //App_Deinit();
+
+    /* deinit platform */
+    PRINTF("De-Initializing Platform...\n");
+    PL_Deinit();
+
     return 0 ;
 }
diff --git a/ADIS_tinyK22_SplitFlap/source/platform.c b/ADIS_tinyK22_SplitFlap/source/platform.c
new file mode 100644
index 0000000..8081321
--- /dev/null
+++ b/ADIS_tinyK22_SplitFlap/source/platform.c
@@ -0,0 +1,30 @@
+/*
+ * platform.c
+ *
+ *  Created on: 29.09.2022
+ *      Author: jonas
+ */
+
+#include "platform.h"
+#include "McuLib.h"
+#include "McuWait.h"
+#include "McuLED.h"
+#include "McuGPIO.h"
+#include "McuULN2003.h"
+
+void PL_Init(void){
+	McuLib_Init();
+	McuWait_Init();
+	McuGPIO_Init();
+	McuLED_Init();
+	McuULN2003_Init();
+}
+
+
+void PL_Deinit(void){
+	McuULN2003_Deinit();
+	McuLED_Deinit();
+	McuGPIO_Deinit();
+	McuWait_Deinit();
+	McuLib_Deinit();
+}
diff --git a/ADIS_tinyK22_SplitFlap/source/platform.h b/ADIS_tinyK22_SplitFlap/source/platform.h
new file mode 100644
index 0000000..8ee8b19
--- /dev/null
+++ b/ADIS_tinyK22_SplitFlap/source/platform.h
@@ -0,0 +1,18 @@
+/*
+ * platform.h
+ *
+ *  Created on: 29.09.2022
+ *      Author: jonas
+ */
+
+#ifndef PLATFORM_H_
+#define PLATFORM_H_
+
+/* Platform initialization */
+void PL_Init(void);
+
+/* Platform de-initialization */
+void PL_Deinit(void);
+
+
+#endif /* PLATFORM_H_ */
diff --git a/ADIS_tinyK22_SplitFlap/source/splitflap.c b/ADIS_tinyK22_SplitFlap/source/splitflap.c
new file mode 100644
index 0000000..d94d421
--- /dev/null
+++ b/ADIS_tinyK22_SplitFlap/source/splitflap.c
@@ -0,0 +1,26 @@
+/*
+ * splitflap.c
+ *
+ *  Created on: 29.09.2022
+ *      Author: jonas
+ */
+
+#include "splitflap.h"
+#include "McuULN2003.h"
+
+SF_Handle_t SF_Init(SF_Config_t* instance, int id){
+	SF_t splitflap;
+
+	splitflap.magSensor = McuGPIO_InitGPIO(&instance->magSensorConfig);
+	splitflap.motor = McuULN2003_InitMotor(&instance->motorConfig);
+	splitflap.id = id;
+
+	return &splitflap;
+}
+
+
+
+void SF_Deinit(SF_t* instance){
+	McuULN2003_DeinitMotor(&instance->motorConfig);
+	McuGPIO_DeinitGPIO(&instance->magSensorConfig);
+}
diff --git a/ADIS_tinyK22_SplitFlap/source/splitflap.h b/ADIS_tinyK22_SplitFlap/source/splitflap.h
new file mode 100644
index 0000000..c07091a
--- /dev/null
+++ b/ADIS_tinyK22_SplitFlap/source/splitflap.h
@@ -0,0 +1,34 @@
+/*
+ * splitflap.h
+ *
+ *  Created on: 29.09.2022
+ *      Author: jonas
+ */
+
+#ifndef SPLITFLAP_H_
+#define SPLITFLAP_H_
+
+#include "McuULN2003.h"
+#include "McuGPIO.h"
+
+/* define splitflap handle type. SF_Handle_t points to SF_t */
+typedef void* SF_Handle_t;
+
+typedef struct {
+  McuULN2003_Handle_t motor;
+  McuGPIO_Handle_t magSensor;
+  int id;
+} SF_t;
+
+typedef struct {
+  McuULN2003_Config_t motorConfig;
+  McuGPIO_Config_t magSensorConfig;
+} SF_Config_t;
+
+/* split flap initialization */
+SF_Handle_t SF_Init(SF_Config_t* instance, int id);
+
+/* split flap deinitialization */
+void SF_Deinit(SF_Handle_t* instance);
+
+#endif /* SPLITFLAP_H_ */
diff --git a/ADIS_tinyK22_SplitFlap/source/splitflap_pins.h b/ADIS_tinyK22_SplitFlap/source/splitflap_pins.h
new file mode 100644
index 0000000..6f7e025
--- /dev/null
+++ b/ADIS_tinyK22_SplitFlap/source/splitflap_pins.h
@@ -0,0 +1,64 @@
+/*
+ * splitflap_pins.h
+ *
+ *  Created on: 29.09.2022
+ *      Author: jonas
+ */
+
+#ifndef SPLITFLAP_PINS_H_
+#define SPLITFLAP_PINS_H_
+
+/* Magnet sensor */
+#define MAG_MOTOR0_GPIO 	GPIOB
+#define MAG_MOTOR0_PORT 	PORTB
+#define MAG_MOTOR0_PIN 		19U
+
+#define MAG_MOTOR1_GPIO 	GPIOB
+#define MAG_MOTOR1_PORT 	PORTB
+#define MAG_MOTOR1_PIN 		18U
+
+#define MAG_MOTOR2_GPIO 	GPIOA
+#define MAG_MOTOR2_PORT 	PORTA
+#define MAG_MOTOR2_PIN 		13U
+
+#define MAG_MOTOR3_GPIO 	GPIOB
+#define MAG_MOTOR3_PORT 	PORTB
+#define MAG_MOTOR3_PIN 		3U
+
+/* motor 0 */
+#define STEPPER_MOTOR0_IN1_GPIO		GPIOC
+#define STEPPER_MOTOR0_IN1_PORT		PORTC
+#define STEPPER_MOTOR0_IN1_PIN		11U
+
+#define STEPPER_MOTOR0_IN2_GPIO		GPIOC
+#define STEPPER_MOTOR0_IN2_PORT		PORTC
+#define STEPPER_MOTOR0_IN2_PIN		10U
+
+#define STEPPER_MOTOR0_IN3_GPIO		GPIOC
+#define STEPPER_MOTOR0_IN3_PORT		PORTC
+#define STEPPER_MOTOR0_IN3_PIN		9U
+
+#define STEPPER_MOTOR0_IN4_GPIO		GPIOC
+#define STEPPER_MOTOR0_IN4_PORT		PORTC
+#define STEPPER_MOTOR0_IN4_PIN		8U
+
+/* motor 1 */
+#define STEPPER_MOTOR1_IN1_GPIO		GPIOA
+#define STEPPER_MOTOR1_IN1_PORT		PORTA
+#define STEPPER_MOTOR1_IN1_PIN		1U
+
+#define STEPPER_MOTOR1_IN2_GPIO		GPIOA
+#define STEPPER_MOTOR1_IN2_PORT		PORTA
+#define STEPPER_MOTOR1_IN2_PIN		2U
+
+#define STEPPER_MOTOR1_IN3_GPIO		GPIOA
+#define STEPPER_MOTOR1_IN3_PORT		PORTA
+#define STEPPER_MOTOR1_IN3_PIN		5U
+
+#define STEPPER_MOTOR1_IN4_GPIO		GPIOA
+#define STEPPER_MOTOR1_IN4_PORT		PORTA
+#define STEPPER_MOTOR1_IN4_PIN		12U
+
+/* TODO define motors 2 and 3 */
+
+#endif /* SPLITFLAP_PINS_H_ */