2011•Transducer and Microsystem TechnologiesRequires access

Monitoring temperature and humidity of warehouse and design of wireless transmission system with nRF905

Yongfu Liu

Abstract

Warehouse's temperature and humidity monitoring system is based on MSP430.Advanced digital temperature and humidity integrated chip is used in SHT chip.It greatly reduces hardware cost through wireless transmission of data by nRF905 wireless transmission.SHT has a simple interface and kinds of components including compensating circuit inside.It has high measuring precision.NRF905 is a single-chip radio transceiver which can receive and dispatch and automatically handle preamble and CRC.The false code rate is low.A detailed block diagram,process flow chart and partial program code,and test data are given.

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Key concepts: Block diagram, Chip, Transceiver, Wireless, Transmission (telecommunications), Data transmission, Embedded system, Computer science