What if you lose your keys and get stuck outside your house in rain? You will have no other option except to barge in and in doing so, break some or other valuable item of your house. This could be avoided if you have already prepared some other gateway like triggering a garage door opener through a website hosted by an Arduino. 

 

 

 

You are very much aware of the wonders of Arduino and when it is connected to a wireless network, it is accessible from your smartphone. It can be directly connected to the web server where you just need to enter a password, activate the garage door and get inside your house, without breaking anything. In this process, a MegunoLink Pro interface panel is used for configuration of the program.

 

The hardware section includes an Arduino Etherten, which is fully compatible with the Arduino Uno and the Etherten contains an ethernet module based on the Wiznet chip and is used in the official Arduino shield.  Then there is a relay, which is used to activate the garage door opener. Generally, garage door motors are equipped with a low-voltage switch, near the internal door to the garage and the relay works in parallel with this switch. It allows Arduino to activate the door without disrupting normal operation. Therefore it is necessary to be sure about the switch that whether it is low-voltage and safe before wiring.

 

Next is the transistor that turns the relay on and off and a diode which is put across the relay to protect the transistor when the relay turns off.

The program is designed in a manner that sends Door activated message to the serial port, whenever the garage door. You can get the complete information from the following website.