Publication: Development of a pigeohole letter detector system with higher number of users
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Date
2012-06-01
Authors
Ng, Kok Meng
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Abstract
Time is ticking every second as we are walking or doing daily chores and it passes unnoticeably. The time that has been spent cannot be recovered and has
become the past in the histories of our lives. Thus, every second is precious and time planning is important to avoid doing activities that are going to waste our time. So, this system is developed in conjunction to this statement as it helps users to save time even if for a mere few minutes. Hence, they could use this spare time to complete other more important work. A user does not need to go and check for letters every day. For some people, they may only receive letters twice a week. So they could save time and energy especially those who are living in high rise buildings. With this system, they will be acknowledged by a notification telling them that there is a letter in the pigeon hole. This system required a root user to operate in PC, it is a very user friendly system and the instruction is also easy to understand. Database will store information of all pigeonhole users. Each pigeon hole consists of a sensor to sense the presence of letter and a microcontroller is used to monitor its’ changes. Then it will continue to communicate with PC via transmission of signal using serial port communication. From
PC, a program will run automatically. This program will then send a notification in the form of Email or SMS to that particular pigeonhole user. Basically the system runs continuously until the root user disables it. In overall, the system performs accurately and easy to manage. It is as convenient as a calculator where the user just key in the required information and the result will come out in no time. The sense of worrying whether there is letter inside the letter box is no longer an issue. Lastly, users will definitely gain benefits for using the pigeon hole letter detector system.