Rancang Bangun Kendali Gerbang Rumah Berbasis Short Message Service (SMS) Menggunakan Arduino

Technological advances in the field of electronics automation are growing rapidly and affecting human life. One example is the control of the gate of the house. Sometimes people forget to close the gates of the house in a hurry and when they realize that the gate is not closed, not a few people are lazy and reluctant to close it. Therefore, it takes an automatic home gate controller that can be controlled in a long distance. So far the development of home door handlers is usually controlled by remote control or, software that can only be reached with a certain distance. So it requires another control device that is not restricted by distance. One of them uses GSM module technology. The GSM module working system gives a message to the Arduino device to instruct Arduino to give motion to the motor that will open and close the gate. The motor used is a stepper motor. So that the gate can be opened and closed with a relatively far distance. This control circuit uses an average voltage of 5 V and a current below 1 A so that if using a 12 V adapter step down regulator required to reduce the voltage to 5V by turning the potensimeter knob. The results of this gate control tool can drive a motor with a fence load, which requires a voltage of 4.8 Volts, a maximum current of 0.2 A and a maximum power of 1 Watt. Keywords: control, automatic gate, Arduino, GSM Module, stepper moto