AC High power(220V) Detector please help me about above mentioned. i want to detect with mcu there is Ac power or not. of course with simple circuit without trasformer .also with 15 ampere current. thanks alot javad majd
"of course with simple circuit without trasformer" Why of course? The simplest way is to use a transformer. It is also safe. See: http://www.8052.com/forum/read.phtml?id=81965 Note that this has nothing to do with Keil software tools, so it's off-topic here.