LIST OF FIGURES

LIST OF FIGURES

Fig 3.1 Power Supply…..…………………......……..….………………………………………..6
Fig 3.2 Circuit Diagram Of MAX232…………..…………………………………...……………9
Fig 3.3 PIC Diagram………..……………………………………..……………………..............13
Fig 3.4 Relay Operation….……………………………………..….….………………………....14
Fig 3.5 Relay Energized (On)……...……………………………....…………………………….15
Fig 3.6 Relay De-Energizing (Off)………...……...…………………..…………………………16
Fig 3.7 Relay Operation (2)…...………………………….…….....……………………………..17
Fig 3.8 Torque Production in Dc Motor………………………….……………………..….……18
Fig 3.9 Induced Voltage In The Armature Winding Of Dc Motor……..………………………..20
Fig 3.10 Gear Motor - Helical Gear……………………………………..……………….………21
Fig 3.11 LCD Display……………………………………………………………………………22
Fig 4.1 Circuit Diagram………………………………………………………...……….……….26
Fig 4.2 Led Connections…………………………………………………………………………27
Fig 4.3 External Interrupt Connections………………………..……………..…………………..28
Fig 4.4 Max 232 Connections…………………………………..………………………..………29
LIST OF TABLES
Table 3.1 Different voltages………………………….………………………..……………………………6
Table 6.1 Data types……………………………………………………………………………………….34
Table 6.2 Memory areas….…………………………………….………………………………………….36
CONTENTS
1. Introduction……...……………………………………………………………………………1
1.1 Existing system……………………………………………………………………………2
1.2 Proposed system…………………………………………………………………………..2
2. Block diagram…………………………………………………………………………………3
3. Hardware components………………………………………………………………………...4
3.1. Power supply……………………………………………………………………………...4
3.1.1 Introduction……………………………………………………………………………...4
3.1.2 Power supply section……………………………………………………………………4
3.1.3 Circuit description………………………………………………………………………7
3.2 IC MAX232………………………………………………………………………………9
3.3 PIC controller…………………………………………………………………………….10
3.3.1 Peripherals features…………………………………………………………………….11
3.3.2 PIC memory……………………………………………………………………………13
3.4 Relays…………………………………………………………………………………….14
3.4.1 Relay operation………………………………………………………………………...14
3.4.2 Relay energized (on)…………………………………………………………………...15
3.4.3 Relay

References: Appendix