build_the_ultimate_magic_mirror_the_mag_pi_issue_90.pdf

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Issue 90
February 2020
magpi.cc
The official Raspberry Pi magazine
What’s the
weather like
today?
COOLING
STAND
KEEP YOUR RASPBERRY PI 4 COOL
WITH THIS VERTICAL STAND!
FREE
GIFT!
STAND
NOT
INCLUDED WITH DIGITAL EDITION
OVERCLOCK
RASPBERRY PI 4
Run at 2.1GHz with
a 750MHz GPU
09:28
Thursday, January 30, 2020
54
Feels like 6°
8.4°
MAGIC
MIRROR
CONSTRUCT AND CUSTOMISE
A VOICE-CONTROLLED
SMART MIRROR
BUILD THE
ULTIMATE
COOLING
CASES
TESTED!
Discover the best
cooling solution
NEW YEAR,
NEW PROJECTS!
What’s
on my
calendar?
Build something
amazing in 2020
Looking good today!
How did
my sports
team do?
LEARN PYTHON
3D PRINT A KEYRING
SET UP AN ALARM BOX
BUILD A BEAT-BOX
£5.99
40
PAGES OF PROJECTS & GUIDES
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erry
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WELCOME
WELCOME
to
The MagPi
90
B
y now you will have noticed the free gift on the print edition
plastic can be? Very, very useful as it happens.
EDITOR
of
The MagPi.
You may be wondering how useful a single strip of
Lucy
Hattersley
Lucy is editor of
The MagPi.
This
month she did
Veganuary and dry
January. She’ll see
you at the bar in
February.
magpi.cc
You see, back in issue 88, Gareth Halfacree tested a Raspberry Pi 4
with all the different firmware updates. This gave us an insight into just
how important firmware was to the Raspberry Pi. But another thing
came to light: Raspberry Pi 4 runs cooler when stood vertically.
Alex Bate, Raspberry Pi’s digital content manager, got to work on a
design that’s now attached to the front cover. All is explained on page 6.
Do yourself a favour and unstick the Raspberry Pi 4 stand, then pop
your Raspberry Pi 4 on its side and keep it vertical.
It turns out that keeping Raspberry Pi 4 cool enables it to run at full
speed for longer and, crucially, this opens up a world of overclocking,
where you try to squeeze ever more performance out of a Raspberry Pi.
Our overclocking tutorial (page 34)
explains all.
Raspberry Pi 4 has always been cool
to us. But cool is fast in the world of
computing, and this month we’re all
about running Raspberry Pi as fast
as possible.
GET A
RASPBERRY
ZERO W KIT
PAGE
22
Lucy Hattersley
Editor
magpi.cc
03
Contents
>
Issue 90
>
February 2020
Cover Feature
24
Magic mirror
World of Raspberry Pi
Your letters
Next Month
The Final Word
Regulars
06
92
97
98
08
12
14
16
18
20
Project Showcases
WeatherMan
DARVA: The Event Assistant
Heart-rate monitor
Audio radar
Tri-Lasers for Felines
Raspberry Pi Recovery Kit
24
18
20
Raspberry Pi Recovery Kit
Tri-Lasers for Felines
DISCLAIMER:
Some of the tools and techniques shown in The MagPi magazine are dangerous unless used with skill, experience, and appropriate personal protection equipment. While
we attempt to guide the reader, ultimately you are responsible for your own safety and understanding the limits of yourself and your equipment. Children should be supervised. Raspberry
Pi (Trading) Ltd does not accept responsibility for any injuries, damage to equipment, or costs incurred from projects, tutorials or suggestions in The MagPi magazine. Laws and regulations
covering many of the topics in The MagPi magazine are different between countries, and are always subject to change. You are responsible for understanding the requirements in your
jurisdiction and ensuring that you comply with them. Some manufacturers place limits on the use of their hardware which some projects or suggestions in The MagPi magazine may go
beyond. It is your responsibility to understand the manufacturer’s limits.
34
38
Tutorials
Overclock Raspberry Pi 4
3D-print a keyring
66
34
38
42
47
54
58
Overclock Raspberry Pi 4
3D-print a keyring
Room guard
Pi Bakery: Hex-A-Pad
C & GTK Glade layout editor
The Big Feature
Thermal cases group test
New Year projects!
82
Reviews
66
74
76
78
80
82
84
88
Thermal cases group test
Pirate Audio
RetroFlag GPi Case
Top 10 game making projects
Learn Python
Community
Pranjali Pathak interview
This month in Raspberry Pi
Events calendar
Pranjali Pathak interview
WIN
PROTODOCK
ONE OF
FIVE
95
ADD-ONS!

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