WK604 www.WineYardProjects.com

Ameerpet Dilsukhnagar ECIL X Road Vijayawada Vizag

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ELECTRONIC COMPLAINT RECORD SYSTEM WITH ADMINISTRATOR

PLAY BACK USING PIC MICROCONTROLLER

Technical Specifications:

Title of the project : Electronic Complaint Record System with Administrator

Play Back using PIC Microcontroller

Domain : Embedded Systems Design

Software : Embedded C

Microcontroller : PIC16F877A

Power Supply : +5V, 500mA Regulated Power Supply

Display : LCD

LCD : HD44780 16-character, 2-line (16X2)

Developed By : M/S Wine Yard Technologies

Phone : 040-6464 6363

Website : www.WineYardProjects.com

WK604 www.WineYardProjects.com

Ameerpet Dilsukhnagar ECIL X Road Vijayawada Vizag

ww

w.W

ineY

ardP

rojec

ts.co

m Ph

: 04

0-64

64 63

63, 66

25 66

95, 88

8 55

55 21

2

ELECTRONIC COMPLAINT RECORD SYSTEM WITH ADMINISTRATOR

PLAY BACK USING PIC MICROCONTROLLER

ABSTRACT:

Problems are common for every one; to rectify them they should notify those problems to their higher authorities. We are finding so many complaint boxes in certain organizations to notify these complaints to their higher authorities. In this present scenario, we

are implementing an Electronic complaint audio recording system for complaint recording, Later Administrator need to play back that recorded audio file for rectifications of available problems.

In this project we are using APR9600 audio recording kit which is controlled by PIC 16F877A for the total operation of audio recording, playing and stopping. Initially there are control switches available for mode selection to the PIC Microcontroller, then it will operate the APR9600 accordingly and the status is displayed on the LCD for user identification.

This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.

WK604 www.WineYardProjects.com

Ameerpet Dilsukhnagar ECIL X Road Vijayawada Vizag

ww

w.W

ineY

ardP

rojec

ts.co

m Ph

: 04

0-64

64 63

63, 66

25 66

95, 88

8 55

55 21

2

BLOCK DIAGRAM:

PIC 16F877A

16X2 LCD DISPLAY

CONTROL SWITCHES

RESET

POWER SUPPLY

CONTRAST CONTROL

Step down T/F

Bridge Rectifier

Filter Circuit Regulator

Power supply to all the circuit

CRYSTAL

APR 9600