| Summary: | A prototype of device which is able to count the amount of people who
come in and out by using the sensor of photodiode microcontroller ATMega32
based, used as a device to appeal and inform the inhabitants about the automatic
counting system has been made. By using this prototype, people are facilitated to
be able to count the amount of people who come in and out automatically. This
prototype counts the amount of people who come in and out by integrating the
sensor of photodiode. This prototype has two important parts. The first part is
the liquid crystal display as the monitor to show the information gathered. The
second is the speaker to produce the sound gathered from the information.
This prototype consists of photodiode censor, laser beam, LCD, IC
ISD25120, speaker, and the micro-controller ATMega32 as the main controlling
device in this prototype. This prototype works from the detection device which
has been plant in a front-room. ATMega32 is both the main controlling and the
main detection censor device in this prototype. Finally, all the information
gathered by the system will be displayed at the LCD.
From the experiment which has been done, it shows that the censor of
photodiode is only able to record 99 people who come in and out. The result of
the experiment is very accurate and reliable.
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