PIC-controlled RDS decoder

The Radio Data is now well established among VHF- FM broadcasters aiming at providing additional information with their radio programmes. In addition to up-to-date traffic information, RDS also brings you, on an LCD screen, alternative frequencies, time information and a feature called Radiotext. The latter in particular is on the rise these days, with an increasing number of stations offering this additional information to listeners at home and in ther cars. A PIC16X84 microcontroller allows a simple and pretty compact RDS add-on decoder to be built based on only two integrated circiuts.