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 20
Window Alarm
When windows are open, heat can escape. But fresh air is nice, even in the cold. We don’t want alarms going off just because a window is open. We just need to make sure that the window isn’t open for too long.
We can use the temperature sensor from Mission 17 and the door sensor from Mission 8 together to accomplish this mission.
Algorithm
We want the alarm to go off if the window is open and the temperature in the house has gone down since the last two readings.
micro:bit
Figure 20.1 Window set up with tinfoil.
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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.
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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.