diff --git a/main.c b/main.c
index 1e65c69..7b5c1c5 100644
--- a/main.c
+++ b/main.c
@@ -17,17 +17,27 @@
 #include "spi.h"
 #include "ledcontroller.h"
 #include "rtc.h"
+#include <util/delay.h>
 
 int main(void)
 {
   
   timer_init();
-  rtc_init(0);
-  spi_slave_init();
+  //rtc_init(0);
+  //spi_slave_init();
   ledcontroller_init();
   sei();
-  lcd_init();
+  //lcd_init();
 
+  DDRC |= (1<<PC5);
+
+  /*
+  while (1) {
+    PORTC ^= (1<<PC5);
+    timer_wait(5000);
+    //_delay_ms(100);
+  }
+  */
   rgbyteclock();
   // rgbyteclock() should never end, but who knows...
   while (1) { ; }
diff --git a/rgbyteclock.c b/rgbyteclock.c
index 868ef84..efe43fd 100644
--- a/rgbyteclock.c
+++ b/rgbyteclock.c
@@ -21,38 +21,39 @@ void rgbyteclock(void)
 {
 
   while(1) {
+    PORTC ^= (1<<PC5);
     for (int i=0; i<15; i++) {
       led_set(i, 0x7ff, 0x00, 0x00);
       led_flush();
-      timer_wait(200);
+      timer_wait(2000);
     }
     for (int i=0; i<15; i++) {
       led_set(i, 0x00, 0x00, 0x00);
     }
     led_flush();
-    timer_wait(100);
+    timer_wait(1000);
 
     for (int i=0; i<15; i++) {
       led_set(i, 0x00, 0x7ff, 0x00);
       led_flush();
-      timer_wait(200);
+      timer_wait(2000);
     }
     for (int i=0; i<15; i++) {
       led_set(i, 0x00, 0x00, 0x00);
     }
     led_flush();
-    timer_wait(100);
+    timer_wait(1000);
 
     for (int i=0; i<15; i++) {
       led_set(i, 0x00, 0x00, 0x7ff);
       led_flush();
-      timer_wait(200);
+      timer_wait(2000);
     }
     for (int i=0; i<15; i++) {
       led_set(i, 0x00, 0x00, 0x00);
     }
     led_flush();
-    timer_wait(100);
+    timer_wait(1000);
 
   }
 
diff --git a/timer.c b/timer.c
index 9607683..693e548 100644
--- a/timer.c
+++ b/timer.c
@@ -32,6 +32,7 @@ ISR(TIMER0_COMPA_vect) {
 
 void timer_init(void)
 {
+
   uint8_t sreg = SREG;
   // Stop all interrupts
   cli();
@@ -42,16 +43,16 @@ void timer_init(void)
   // - Time accuracy: 1 millisecond (corresponding frequency: 1kHz)
   // ==> F_CPU = 20Mhz
   // ==> 20Mhz / 256 = 78.125 kHz
-  // ==> let timer count to 78 to get (almost) 1kHz frequency
+  // ==> let timer count to 77 to get (almost) 1kHz frequency
   // therefore:
   // - Set Timer/Counter0 prescaler to 256 ==> (1<<CS02)
-  // - Set OCR2 to 78
+  // - Set OCR2 to 77
   // - CTC ( i.e. clear counter, when COUNTER == OCR0A) ==> (1<<WGM01)
   // unfortunately, due to the 20MHz and the coarse prescaler dividers
   // provided, we can't get any closer to the desired frequency of
   // 1kHz :(
-  OCR0A = 78;
-  TCCR0B = (1<<WGM02);
+  OCR0A = 77;
+  TCCR0B = (1<<WGM01);
   TCCR0A = (1<<CS02);
 
   // Interrupts setzen