Abstract
A device that can increase security against theft has been made, thus reducing public anxiety leave their home when the house is empty, especially for a long time. Online CCTV that has been equipped with a PIR sensor, ATmega328 microcontroller, and SIM800L and ISD1820 sound module. The advantages of this system that has been made have the advantage that not only can be monitored through the monitor screen but can also be seen through a smartphone, another advantage is that the homeowner can prevent theft because the device is equipped with an alarm, if there is detected by the PIR sensor in the room, SIM800L will send an SMS that says There is a movement the cell phone number already in the program with the SMS received by the recipient, the homeowner can see whether the is a thief or not, if the incoming person is a thief then the SMS recipient can send an SMS reply on to turn on the speaker and buzzer. If you want turn off Buzzer, the homeowner can send an SMS off.
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