PIC16F877A-based multi-channel bus of DS18B20 line temperature measurement system (using the Proteus simulation). Proteus analog circuit+ PIC C language source code (MPLAB V8.00) This is not using multiple I/O simulation of multi-channel temperature measurement Oh! See system functions: 1) by the parasitic power line data line, using MOSFET strong pull-up power supply to the DQ 2), power-on automatically search for available sensors and do CRC check (to achieve a Search ROM command) 3) alarm limit choice 4), polling shows the temperature, through the LCD1602 output 5), half-way pulled out or the temperature sensors are all cross-border police 6), using sound and light alarm mode can be used as the temperature control signal flags.

S232\DS18B20.C.bak
....\LCD1602.C
....\LCD1602.H
....\main.C
....\delay.c
....\delay.h
....\DS18B20.C
....\DS18B20.H
....\S232.mcs
....\S232.mcp
....\S232.mcw
....\S232.tagsrc
....\S232.mptags
....\delay.p1
....\delay.sdb
....\delay.lst
....\delay.rlf
....\delay.obj
....\DS18B20.p1
....\DS18B20.sdb
....\DS18B20.lst
....\DS18B20.rlf
....\DS18B20.obj
....\LCD1602.p1
....\LCD1602.sdb
....\LCD1602.lst
....\LCD1602.rlf
....\LCD1602.obj
....\main.p1
....\main.sdb
....\main.lst
....\main.rlf
....\main.obj
....\S232.map
....\S232.sym
....\S232.hex
....\S232.hxl
....\S232.cof
....\sch\Last Loaded TEMPLCM1602.DBK
....\...\TEMPLCM1602.DSN
....\...\Last Loaded TEMPGET.DBK
....\...\TEMPLCM1602.PWI
....\sch
S232

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