INTRODUCTION
The project is an unlock door with Arduino that is using an intercom and a servo motor.
The reason of this project is that I wanted to open the main and flat door without using the keys, because in the winter it's too cool and the lock doesn't work properly ( I am just lazy :P ).
Fortunately the door is equipped with an intercom where from my flat I can unlock the door by pressing a button.
ITEMS
ENTRYPHONE
I opened the entryphone to understand how I can unlock the door, in my case was simple, I figured out that if I make a bridge between the GROUND and the UNLOCK WIRE I can unlock the door.
The project is an unlock door with Arduino that is using an intercom and a servo motor.
The reason of this project is that I wanted to open the main and flat door without using the keys, because in the winter it's too cool and the lock doesn't work properly ( I am just lazy :P ).
Fortunately the door is equipped with an intercom where from my flat I can unlock the door by pressing a button.
ITEMS
- Arduino uno R3
- Ethernet Shield
- Relay
- Servo
- Ethernet cable
- Webservice
- Own android app
DESCRIPTION
The project is using an Arduino to unlock the door, this is using a relay to make a bridge between two wires.
I made:
- an Android app: you need to use this application to communicate to the Arduino with some web-services
- a website: this is just a "proxy" and a security tunneling to send the right command to the Arduino, I am logging all the action that the users d.
I made a website because it was simply to make a kind of security and manager the user who could use it.
ENTRYPHONE
I opened the entryphone to understand how I can unlock the door, in my case was simple, I figured out that if I make a bridge between the GROUND and the UNLOCK WIRE I can unlock the door.
I extended the two wires outsite of the box to the relay and then I connected the relay to Arduino.
ANDROID APP
What I did it's a simple login screen and a second screen where I can check the status and send the command to unlock the doors.
ARDUINO
I looked in Internet how I can create a webserver with Arduino and I made a simple script to filter the GET request.
I did a TimerTask every 1 hour to update the IP on the website, because I don't have a static IP and I need to update it manually.
SECURITY
I choose to use the HMAC as security between Android -> Web -> Arduino, I found a library to use with Arduino ( click here ).
LOG
The logs will be use to have a feedback who used the application and if there is any intrusion from unknown people.
VIDEO TEST
The first prototype
The final result
Your project is really good for business. Having an automatic door is so clever. However, I've been thinking, what if there's a power outage? I think you should add some batteries for backups.
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