A radio receiver is always a fun project. [Jayakody2000lk] decided that his new superheterodyne design would use an Arduino and it looks like it came out very nicely. The system has four boards. An ...

There have been a few Arduino posts in the past so I'm hoping someone here can help.<BR><BR>I have a Duemilanove and a very simple project. I need the Arduino to sense a contact closure and transmit ...