Abstract :
Increased security a kost which are currently still prone to happening
crimes and make harm to the occupants and owners of kost kost then needed
security at the gates of kost to anticipate the occurrence of theft or crime, tools
made is a security gateway appliance using the doorlock kost with SMS (Short
Message Service) through mobile residents of kost and there will be a notice to
owner kost that door is being accessed, to access the gate only number occupant
phone kost. This tool uses technology GSM 800L doorlock module, and the
Arduino Uno using the command SMS (Short Message Service), the resulting
output is open and lock the door lock. The methods used in the manufacture of
security gates kost is a method of experimentation with the design directly doing
the design, both the design of the hardware or software design. Based on the
results of testing the GSM module with the input voltage 800L Volt 4,24 derived
with a series of DC-DC Converter output voltage of 5 Volt on-board arduino uno,
solenoid doorlock work can open and close the lock solenoid, with voltage 8,02
Volt input can still keep opening and closing keys doorlock is theoretically 12 Volt
voltage input.
Keywords: GSM 800 Module, Arduino Uno, DoorLock