circuit diagram of the microcontroller project for humidity and clocking

This is circuit diagram of the microcontroller project for humidity and clocking.

Parts List:-
Microcontroller :- AT89s51 or simple AT89c51
Analog to Digital converter:-
ADC0804
Digital to Analog converter:-
DAC0800
Opertaional amplifiers:-
OP07 or LM471, or LM358 or LM1458
Power supplies:-
dual power supplies well regulated for the operational amplifiers +15v,-15v, and one stable regulated power supply for digital circuit based on LM7805
Display:-
LCD 2line and 16 characters display for user read out the values of the parameters
Communication:-
RS-232 serial communication with PC and PC to microcontroller two way communication
PPI:-\
82C55 PROGRAMMABLE PERIPHERAL INTERFACE
All these componets are linked together in a specific manner to have a good project.
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Product data 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family step-by-step utilization and the big world of Atmel's 8-bit with pin counts from 8 up to 100 pins.A/D Channels Brown Out Detector In System Prog
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