In this project is to study and design the system trains with a Smartphone with the barrier automatically learn and study the work of the boards, Arduino GPS Shield R3, and Uno nRF24L01p 2.4 GHz Transceiver Module and can Wi-Fi knowledge from the study to develop such devices, starting from the design system. Monitor and track the position of the trains using the Arduino Uno Board, R3 as a central processing unit. Use the GPS Shield to check the position of the train. When the train near the intersection within the 2.4 GHz Transceiver Module Wi-Fi nRF24L01p will send a signal out to the intersection thereof with the notification, in order not to have to cross the railroad. When a nearby train.
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