
About project
- No buttons: fully motion sensored.
- Voice greeting: doorbell greets the visitor.
- Voice alert: doorbell notifies me that somebody is at my door.
- Logging: doorbell logs and timestamps every time I have a visitor and doorbell stores snapshot of the person.
Components
<PIR Motion Sensor>
<Wave Shield>
And Ethernet shield, CCTV
Assembling
How Doorbell will work
1.PIR sensor detects motion.
2.Trigger pre-recorded voice of Jarvis on wave shield that says “Hello. I am notifying my master that you are here”.
3.Make a call to the doorbell server API and let it know that I have a visitor.
4.Server takes a feed off the front door surveillance cam and creates a snapshot image.
5.Server takes that snapshot image and converts it into a base64 encoded dataurl so we don’t have to store the image as a file.
6.Server logs that data and timestamps it.
7.Meanwhile, Jarvis is polling the doorbell server via ajax requests.
8.Does Jarvis see new visitor data? If so, alert me with “You have a visitor” and show me a snapshot from my front doorstep on my screen.
Youtube demo video
Blog link
Source : https://cranklin.wordpress.com/2012/08/20/my-experimental-doorbell/
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