Animated Light Stairs

   This interesting project was made by Bogdan Arnautu, reader of my blogs. He use an ATmega8A-PU chip in this schematic (for 14 leds):

   In this video you can see how system work:

   You can use Atmega8A_Iluminat_inteligent_trepte.hex file with Khazama software.

   Few photos with system:

   I write my sketch using Arduino for 

- stairs with 16 light steps

- stairs with 17 light steps