Abstract
This paper presents the design of multiaccess system using ARM and iButton. The system performs applications like identification and verification using aadhaar card, toll access control and electronic money transaction, displays vehicle registration details and also gives access to the vehicle. This system becomes very secure and reliable solution to many problems and has hardware simplicity which is specific to the 1-wire technology. The key part of the whole system is iButton. The iButton is a computer chip enclosed in a 16mm thick stainless steel can. Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go. Various components used in this system are 1-wire network, keypad, iButton, motor, relay, EEPROM memories.
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