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Bicycle Alarm Project.
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Bicycle Alarm Project BTEC National Diploma Final Year Project By: Stewart Watkiss June 1996 Contents page Introduction ........................... 1 Specification .......................... 1 Meeting specifications ................. 2 Circuit description .................... 3 Keypad and PIN decoder .................. 3 Alarm set indicator ..................... 10 Set and part set selection .............. 12 Alarm status decoding circuit ........... 13 Karnaugh map .............................. 14 NAND only solution ........................ 15 NOR only solution ......................... 16 Monostable hold ......................... 18 Sounder ................................. 19 Low battery indicator ................... 20 Circuit Diagram ......................... 21 Printed circuit board ................... 22 Circuit additions ....................... 23 Price List .............................. 24 Problems encountered .................... 25 Bibliography ............................ 26 Bicycle Alarm Project Introduction The crime rate in the UK is high and thefts pedal bicycles is on the increase. The reason for this increase is due to the increase in the cost of the bikes (many bikes now cost around £300), and due to the lack of security devices...
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