January 2004
Intermediate to advanced
348 pages
13h 33m
English
Content preview from Hardware Hacking Projects for Geeks
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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.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.
15
1
Cost
Time
Difficulty
$10–25
a weekend
easy
I’ve been using laptop computers for a long time, and one of the first acces-
sories I end up buying is an extra battery. These batteries tend to cost
anywhere from $100 to $200 and don’t provide that much more operating
time. I travel by air quite a bit, and the extra battery I carry often does not
last even half the flight.
After some thought, I decided to build my own external laptop power
extender that would run off of standard alkaline or rechargeable batteries.
The battery pack adds anywhere between two and six extra hours of run
time. With your laptop fully charged and this power extender packed for
backup, you should have enough power to run your applications for as long
as you wish on your next transcontinental airplane trip.
1. How to Build a
Portable Laptop
Power Supply
What You Need
• Battery holder for 10 to 12 cells
• Speaker wire
• DC power connector
• Fuse and holder
• D-size batteries
• Tie wraps
• Black electrical tape
• Multi-meter
Credits
Photographs copyright © 2003 Scott Fullam.
ch01_laptop.indd 15
1/21/2002 12:22:47 PM
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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.