仓库温湿度监测与nRF905无线传输系统的设计

摘要

基于MSP430的仓库温湿度监测系统采用了先进的数字式温湿度一体化SHT芯片,通过nRF905无线方式传输数据,大大简化了硬件成本.SHT传感芯片接口简单,内部集成了包括补偿电路在内的各种元器件,具有较高的测量精度.nRF905是一种集收发于一体的单片无线收发器,能够自动产生前导码和CRC,误码率低.给出了比较详细的框图、程序流程图和部分程序代码,并测出了实验数据.%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.