Home Control and Monitoring System
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I built this system to learn Python and to have a fun project using the
Raspberry Pi and some auxiliary electronics. Remember the Big Bang
Theory episode where some guys in Shanghai are turning the lights off
and on in Sheldon and Leonard's apartment? If they had the
password, they could do that to one light in my computer room.
The Pi puts data onto a Web site I own (not a UTD site) so I can look at
it from a browser. No, I won't publish the URL; I'm doing security
by obscurity. Even then, it requires a password to see photos and
perform control functions. The code for the site is written in C#. |
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This is the main module. The Pi board sits on top of a
black box. Glued to the back of the box are a motion sensor
(right) and a camera (left) that are mounted on pieces of
coathanger. The box contains a gang of solid-state relays
that are controlled by the Pi. One of them turns on the
lamp at the right, and another turns on a radio, not shown.
This system also has a Bluetooth adapter in one of its USB
ports. |
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Ever be a couple of blocks from the house and wonder if you
closed the garage door? Or been in bed and wondered if you
left the light on?
I can't figure out how to get this rotated; in the original the
motion sensor is pointing up, not to the right. This has
an Arduino Uno, and the sensors are a photoresistor for light
level, a DHT11 for temperature and humidity, and a simple
switch, shown below, that is open if the garage door is down and
closed if it is up. This module sends data to the Pi
module, shown above, every 10 seconds. The code is all
written in C.
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