January 2004
Intermediate to advanced
348 pages
13h 33m
English
Content preview from Hardware Hacking Projects for Geeks
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
283
Chapter 14, How to Build a Wearable Computer
WARNING
As you connect the components together, be very careful to cover exposed
power supply cables and connectors. If these are accidentally shorted together,
the power supply and/or battery may heat up and cause a fire.
Your keyboard and pointer input devices will likely interface to the main
computer via a serial, PS/2, or USB connection.
Your head-mount display will connect to a video output card or port.
Depending on which display you have chosen, your output signal will be
either VGA or NTSC. If it is NTSC, the display device will probably require
a standard NTSC video output from the main CPU board. If your system
has only a VGA port, you can purchase a VGA-to-NTSC converter from
various sources (do a search for “VGA-to-NTSC converter” on the Web).
You can also use the TVator product introduced in Chapter 7.
Software Setup Instructions
Depending on your goals, the software can be the most challenging part
of this project. Standard operating systems assume that you have a large,
high-resolution display and a large power source. Wearable systems often
do not have particularly high-resolution displays and operate off of limited
battery displays. Many times the display cannot easily be used, and other
forms of human interface must be used instead.
You should first decide what you want your wearable system to
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.