April 2020
Intermediate to advanced
224 pages
6h 2m
English
book
Save the World with Code: 20 Fun Projects for All Ages Using Raspberry Pi, micro:bit, and Circuit Playground Express
by Lorraine Underwood
Content preview from Save the World with Code: 20 Fun Projects for All Ages Using Raspberry Pi, micro:bit, and Circuit Playground Express
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MISSION 9
A Lock to Protect Your Sword
We want to keep our sword from Mission 5 safe. Unlike the door in your room, the sword can be anywhere at any time. We want to put a lock on the sword, and if anyone tries to move the sword, an alarm will go off, and the sword won’t work. This alarm can go on anything that you want to keep safe, not just the sword.
You don’t need a speaker for this mission, because the lock will stop the sword from working. We’re going to use if and else statements.
ELSE
We briefly saw an else back in the Debug section of Circuit Playground Express in Mission 3. It covers everything the if doesn't. Remember the algorithm:
What do we do if Lorraine is not hungry? That’s where else comes along.
Only one of these actions ...
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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.