TABLE OF CONTENTS
S.No. Contents Page No.
Certificate…………………………………………………..iii
Abstract……………………………………………………. iv
Declaration………………………………………………… v
Acknowledgement………………………………………….vi
1. Introduction…………………………………………………1
2. Block diagram and its description - - - - - - - .2
2.1 Basic block diagram…………………………… - 2
2.2 Block diagram description………………………. 3
3. Component used-Part A……………………………………6
3.1 Voltage Regulator………………………….…..…6
3.2 NE555 Timer………………………………… - ..10
3.3 Rectifier…………………………………….……18
4. Circuit Description………………………………………….23
4.1 Transmission circuit…………………………….. 23
4.2 Receiver circuit…………………………………..24
5. Hardware Design and description……………………… - .26
6. Circuit Description-Part B…………………………………28
6.1 TSOP1738 …………………………………… - 28
6.2 555……………………………………………… - 29
6.3 LTS542(7 Segment Display)…………………… - 31
6.4 LM7805(Voltage Regulator) ……………………..32
6.5 Relay Circuit………………………………………33
6.6 Capacitor…………………………………………..33
6.7 Diode………………………………………………35
6.8 Resistor…………………………………….………38
6.9 Light Emitting Diode …………………………… - 40
6.10 Printing Circuit Board ……………………………..46
7. Flow Chart…… …………………………………….…….…..49
8. Testing & Result…………………………………………..… 51
9. Future Scope…………………………………………….… - ..52
10. Applications………………………………………………..…53
11. References…………………………………………………….54
LIST OF FIGURES
S. No. Figure Name Page No.
1. Block Diagram of Visitor Counter ………………………….…….2
2. Pin Diagram Of 74LS192 ……………………………………….…4
3. NE 555Timer …………………………………………………… - 10
4. 555 In Bistable Mode …………………………………………….14
5. Standard 555 astable Circuit …………………………………… - .15
6. Full-wave rectifier using a center tap transformer ……………… - 19
7. Full-wave rectifier, with vacuum tube …………………………..20
8. Disassembled automobilealternator ……………………………….22
9. Three-phase full-wave bridge rectifier circuit ……………………..23
10. Transmitter circuit ……………………………………………… - 24
11. Receiver circuit ……………………………………………… - …26
12. Snapshot of the entire circuit ………………………………..…….28
13. Infrared Sensor …………………………………………….…… - 29
14. Block Diagram of TSOP 1738 ……………………………….……29
15. Timer IC(555) …………………………………………………….29
16. Segment ……………………………………………………………31
17. Voltage Regulator …………………………………………………32
18. Relay …………………………………………………………….….33
19. A diode's I–V characteristic ………………………………………..35
20. LEDs ……………………………………………………………….37
21. FLOW CHART ………………………………………………,,,…49
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