Auto dial alarm telephone system / Abdul Rafaie Rosli

The most vital aspects in life is communication. In line with vision 2020, the most sophisticated, reliable and smooth communication tool is needed. Ply project is the implement of such system. The technology introduced here is about automatics communication via the ordinary telephone line. This system uses L56B02 microcomputer. Chapter 2 outline the main characteristics of this microcomputer. The project is divided into 4 parts. Firstly, chapter 3, the Auto Dial Telephone, then chapter 4, the Tone Decoder. Thirdly, chapter 5, is the Waveform Generator. Finally, the combination of the three parts, in chapter 6. The division is necessary in order to make it easier for better understanding.