hi, can you please help and tell me the application of this led chaser : http://www.google.rw/imgres?imgurl=...OvT5_jFI-c-wbT6sDTCA&ved=0CGQQ9QEwBA&dur=2841
and where it can be used and what is this resistor :1k is doing in it.
and where it can be used and what is this resistor :1k is doing in it.