September 2007
Beginner to intermediate
432 pages
17h 48m
English
Content preview from Making Things Talk
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A MORE COMPLEX NETWORK 97
to upload to. For example, if your directory is at the root
of your website, then the image would be found at www.
example.com/catcam/image.jpg.
Once you know the image is there and visible, frame it with
a web page in the same directory, called index.html. Below
is a bare-bones page that will automatically refresh itself
in the user’s browser every ten seconds. The meta tag in
the head of the document causes the browser to refresh
the page every ten seconds. Feel free to make the page as
detailed as you want, but keep the meta tag in place.
<html>
<head>
<title>noodles</title>
<meta http-equiv="refresh" content="10">
</head>
<body>
<center>
<h2>Cat Cam</h2>
<img src="http://www.example.com/catcam/image.jpg">
</center>
</body>
</html>
Putting Sensors
in the Cat Mat
Now that the catcam is running, it’s time to make the
system that notifies you when the cat is there to be
viewed. How you do this depends on what kinds of force-
sensing resistors you use. Interlink’s 400 series FSRs
include a long, thin model with adhesive backing that
mounts nicely on any firm surface. Because this sensor
is very flat and has a relatively large surface area, it gives
good readings for this project. Mount the FSRs on strips of
firm yet flexible wood or cardboard (Masonite works well),
and you’ve got a great sensor.
If you’re using smaller FSRs from another ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.