This system presents a low cost, less time consuming, safe and effective implementation of Smart ... more This system presents a low cost, less time consuming, safe and effective implementation of Smart Letter Box System through the wireless sensor networks which makes the use obstacle sensor. A special device, called hardware kit is realized and design for this purpose. Obstacle sensors has IR transmitter and IR receiver.IR transmitter transmit the rays. When the rays fall on to the object then it gets reflected to IR receiver, it results that the object is detected. In existing system user is notified by sending a text message through a SIM card, but here we introduce Android Application which gives the notification through the internet. The paper illustrates the description of this device, the android application which receives the notification .This system reduces the Human efforts. The additional component of the current system is a battery backup which is used to avoid power failure of the system. The final aim is to minimize the human efforts, reduce cost as well as power failure.
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Papers by Pragati Girme