diff --git a/avr/modules/timer/main.asm b/avr/modules/timer/main.asm
index c0d878d..f44589d 100644
--- a/avr/modules/timer/main.asm
+++ b/avr/modules/timer/main.asm
@@ -89,10 +89,14 @@ onSystemTimerTick:
 onSystemTimerTick_SecondElapsed:
   ldi r16, 10                         ; reload counter (10=every sec)
   sts timerModuleTickCounter, r16
+
   ldi xl, LOW(timerModuleCounterSecs) 
   ldi xh, HIGH(timerModuleCounterSecs)
   rcall Utils_IncrementCounter32      ; inc uptime counter
 
+;  sbi DEBUG_LED_DDR, DEBUG_LED_PINNUM     ; out
+;  sbi DEBUG_LED_PORT_IN, DEBUG_LED_PINNUM ; toggle
+
 onSystemTimerTick_call:
   rcall timerRunTimers
   rcall onEvery100ms