diff --git a/sketches/input/input.c b/sketches/input/input.c
index c367563..160dad0 100644
--- a/sketches/input/input.c
+++ b/sketches/input/input.c
@@ -8,11 +8,45 @@
 //~ #include <util/setbaud.h>
 #include <avr/interrupt.h>
 
-uint8_t volatile status = 0;
+#define HUE_MAX 610
+#define HUE_MIN 350
+#define STEPS 8
+//~ const uint32_t colorSteps = (HUE_MAX - HUE_MIN) / STEPS;
+const uint32_t colorSteps = 5;
 
-ISR(INT1_vect){
+uint8_t volatile status = 0;
+uint32_t volatile time = 0;
+uint32_t volatile T_half = 0;
+uint32_t volatile oldColor = 0;
+uint32_t volatile oldTime = 0;
+
+//~ ISR(INT0_vect) {
+	//~ status = 1;
+	//~ T_half = time + TCNT1;
+	//~ TCNT1 = 0;		// Reset Timer/Counter1
+	//~ time = 0;
+	//~ PORTC += 1;
+	//~ PORTC ^= 0x04;
+	
+//~ }
+
+ISR(INT1_vect) {
 	status = 1;
-	//~ PCORT0 = 1;
+	T_half = time + TCNT1;
+	TCNT1 = 0;		// Reset Timer/Counter1
+	time = 0;
+	oldColor = 0;
+	oldTime = 0;
+	PORTC ^= 1;
+	PORTC &= 0x01;
+	//~ PORTC ^= 0x04;
+	
+}
+
+ISR(TIMER1_OVF_vect) {
+	time += 0x00010000;
+	//~ PORTC += 1;
+	//~ PORTC ^= 0x04;
 }
 
 int main(){
@@ -20,11 +54,16 @@ int main(){
     //~ PORTD |= (1 << PORTD2);    // turn On the Pull-up
     // PD2 is now an input with pull-up enabled
     
+
+	EIMSK |= 0x02;	// External Interrupt Mask Register
+					// Enable INT1 (PIN5) for interrupt
+	EICRA |= 0x0c;	// External Interrupt Control Register
+					// INT1 on rising edge
 	
-	EICRA |= 0x0F;	// External Interrupt Control Register
-					// INT0 on rising edge
-	EIMSK |= 0x03;	// External Interrupt Mask Register
-					// Enable INT0 for interrupt
+	TIMSK1 |= 0x01;	// Timer/Counter1 Interrupt Mask Register
+					// Enable overflow interrupt
+	TCCR1B |= 0x01;	// Timer/Counter1 Control Register B
+					// Prescale Factor 1
 	
 	SREG |= 0x80;	// Status Register
 					// Enable global interrupts
@@ -35,16 +74,25 @@ int main(){
 	
 	//~ PCMSK2 = 0xff;	// Pin Change Mask Register 2
 					//~ // Enabled PCINT[23;16] (Single Pins)
-	DDRC = 0xff;
+	DDRC = 0x3f;
+	PORTC = 0x00;
 	
 	
 	
-	while(1){
-		if(status){
-			PORTC ^= 0x01;
-			status = 0;
+	while(1) {
+		uint32_t T_step = T_half / colorSteps;
+		//~ uint32_t colorStep = (time + TCNT1) / T_step;
+				
+		//~ if (colorStep > oldColor) {
+			//~ // TODO next color
+			//~ PORTC += 0x02;
+			//~ oldColor = colorStep;
+		//~ }
+		
+		if(time + TCNT1 > oldTime + T_step){
+			oldTime += T_step;
+			PORTC += 0x02;
 		}
-		PORTC ^= 0x02;
 	}
 	return 0;
 }
diff --git a/sketches/input/input_orig.cc b/sketches/input/input_orig.cc
new file mode 100644
index 0000000..c367563
--- /dev/null
+++ b/sketches/input/input_orig.cc
@@ -0,0 +1,50 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <avr/io.h>
+#define F_CPU 20000000UL
+#include <util/delay.h>
+#include <stdbool.h>
+//~ #define BAUD 9600
+//~ #include <util/setbaud.h>
+#include <avr/interrupt.h>
+
+uint8_t volatile status = 0;
+
+ISR(INT1_vect){
+	status = 1;
+	//~ PCORT0 = 1;
+}
+
+int main(){
+
+    //~ PORTD |= (1 << PORTD2);    // turn On the Pull-up
+    // PD2 is now an input with pull-up enabled
+    
+	
+	EICRA |= 0x0F;	// External Interrupt Control Register
+					// INT0 on rising edge
+	EIMSK |= 0x03;	// External Interrupt Mask Register
+					// Enable INT0 for interrupt
+	
+	SREG |= 0x80;	// Status Register
+					// Enable global interrupts
+			
+	//~ PCICR |= 0x04;	// Pin Change Interrupt Control Register
+					//~ // Enabled PCINT[23;16] -> Pin 13,12,11,6,5,4,3,2
+	//~ PCIFR |= 0x04;	// Pin Change Interrupt Flag Register
+	
+	//~ PCMSK2 = 0xff;	// Pin Change Mask Register 2
+					//~ // Enabled PCINT[23;16] (Single Pins)
+	DDRC = 0xff;
+	
+	
+	
+	while(1){
+		if(status){
+			PORTC ^= 0x01;
+			status = 0;
+		}
+		PORTC ^= 0x02;
+	}
+	return 0;
+}
diff --git a/sketches/input/input_orig.o b/sketches/input/input_orig.o
new file mode 100755
index 0000000..f68d558
Binary files /dev/null and b/sketches/input/input_orig.o differ