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Save the World with Code: 20 Fun Projects for All Ages Using Raspberry Pi, micro:bit, and Circuit Playground Express
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Save the World with Code: 20 Fun Projects for All Ages Using Raspberry Pi, micro:bit, and Circuit Playground Express

by Lorraine Underwood
April 2020
Intermediate to advanced content levelIntermediate to advanced
224 pages
6h 2m
English
McGraw-Hill Education TAB
Content preview from Save the World with Code: 20 Fun Projects for All Ages Using Raspberry Pi, micro:bit, and Circuit Playground Express

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.

Images

micro:bit

Images

Figure 20.1    Window set up with tinfoil.

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Publisher Resources

ISBN: 9781260457605