A Transmitting and Receiving System Using a Basic One-Chip Microcomputer for Extremely Low Power Radio Communication

Shuhei SONODA  Hiroyuki ARAI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.9   pp.2883-2888
Publication Date: 2008/09/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.9.2883
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Devices/Circuits for Communications
Keyword: 
extremely low power radio,  one-chip microcomputer,  short range wireless system,  

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Summary: 
Often, the major requisites of short-range communication systems are low power consumption and low cost, rather than high data-transmission speeds. This paper proposes low-cost and extremely low-power radio communication devices that use a basic one-chip microcomputer for short-range transmission and reception. In the proposed transmitter, a rectangular wave is generated at external I/O ports as carrier by the basic one-chip microcomputer and is then filtered and radiated by an antenna circuit. In the proposed receiver, the received signal is detected by a radio IC and is subsequently digitally processed by a microcomputer with a built-in A/D converter. The proposed transmitter and receiver are demonstrated, and the system performance is experimentally evaluated.