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Design of Temperature Measuring System of DS18B20 Based on PIC16F877

LI Yong-mao

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Abstract

Based on PIC16F877,this paper analyzes the characteristics,principles and transaction sequence of 1-wire digital temperature sensor DS18B20.DS18B20 shows the feature of direct digital temperature output without complicated A/D conversion,thus the hardware and software of system can be achieved easily.This paper presents the hardware and compile program design of the temperature measure system based on PIC16F877 and DS18B20.This system has simple structure and low cost.It also can be easily extended and has bright application perspectives.

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What this paper is about

Based on PIC16F877,this paper analyzes the characteristics,principles and transaction sequence of 1-wire digital temperature sensor DS18B20.DS18B20 shows the feature of direct digital temperature output without complicated A/D conversion,thus the hardware and software of system can be achieved easily.This paper presents the hardware and compile program design of the temperature measure system based on PIC16F877 and DS18B20.This system has simple structure and low cost.It also can be easily extended and has bright application perspectives.

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Available abstract

Based on PIC16F877,this paper analyzes the characteristics,principles and transaction sequence of 1-wire digital temperature sensor DS18B20.DS18B20 shows the feature of direct digital temperature output without complicated A/D conversion,thus the hardware and software of system can be achieved easily.This paper presents the hardware and compile program design of the temperature measure system based on PIC16F877 and DS18B20.This system has simple structure and low cost.It also can be easily extended and has bright application perspectives.

Key concepts: Compiler, Software, Simple (philosophy), Feature (linguistics), Database transaction, Measure (data warehouse), Computer science, Embedded system

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