User manual
3
Internet o
f
Thin
g
s Advent Calendar 201
7
I
f
Cisco has its way, more than 50 billion linked devices will be used by 2020; even more optimistically,
Intel expects 200 billion devices1. Each o
f
these devices – or “things” – has a unique address and com-
municates with the outside world through the internet or through some other inter
f
aces, such as Blue
-
tooth: From the co
ff
ee machine to the
f
ridge,
f
rom the car to the train,
f
rom the production machine to
the bracelet: everything can be programmed and can communicate with other things. This topic is more
than just a hype. It is becoming the state o
f
the art, and we should all be dealing with it. Use the Advent
season and get into the Internet of Things
(
IoT
)
. 24 experiments will introduce you to the subject and let
you program your own thing. Have fun!
Source codes and additional in
f
ormatio
n
In the next 24 days, you will learn many new things about the subject of IoT (Internet of Things) and
implement exciting projects. So that you won’t have to type down the programs, some o
f
which can
be rather large, we procured the entire source codes and any additional in
f
ormation
f
or download. Go
to
h
ttp://www.
b
uc
h
.c
d
a
n
d
e
n
te
r
the
code
1
500
7-
3
.
Y
ou
will
fi
n
d
a
n
a
r
c
hiv
e
fo
r
do
wnl
oad
t
h
e
r
e
. Th
e
archive contains a separate directory
f
or every day. For detailed in
f
ormation, read the
fi
le Liesmich.pd
f
in
the
a
r
ch
iv
e.
Some o
f
the programs
f
rom day 8 onwards are very large and not printed in
f
ull here. Only those parts o
f
t
h
e project t
h
at you must
h
ave to un
d
erstan
d
an
d
imp
l
ement it are
d
escri
b
e
d
in t
h
e
h
an
db
oo
k
. Projects
that are controlled with the dedicated Smartphone app are available
f
or download in
f
ull. I
f
you want to
make any changes to the program, always have a look at the
fi
nished program
fi
rst; then make a copy o
f
it and modi
f
y the copy. I
f
anything goes wrong, you can get the initial
fi
les
f
rom
h
ttp://www.
b
uc
h
.c
d
.
Up
d
ates in t
h
e
d
own
l
oa
d
area
The advent calendar was created long be
f
ore Advent and is based on program versions
f
rom that
time. I
f
any greater changes occur be
f
ore Advent, you can
fi
nd an update o
f
the a
ff
ected projects in the
d
own
l
oa
d
area.
Bac
k
groun
d
k
now
l
e
d
ge on t
h
e component
s
Every compartment contains one component. Here, we will provide the most important in
f
ormation on
t
h
e com
p
onents
.
LEDs
LEDs (light-emitting diodes) are lit when power runs through them in the fl ow direction. LEDs are illus
-
trated in circuits with an arrow-shaped triangle that indicates the current direction
f
rom the plus to the
minus pole or to the ground line. An LED lets through nearly any amount o
f
power in the
fl
ow direction,
and has only a very small resistance. I order to limit the
fl
ow current and to prevent the LED
f
rom burn
-
ing t
h
roug
h
, one usua
ll
y must insta
ll
a 220O
h
m
d
ropping resistor
b
etween t
h
e connection pin use
d
an
d
the anode o
f
the LED or between the cathode and the ground pin. This dropping resistor also protects
the output o
f
the included IoT-board
f
rom too-high currents. The LEDs in the Advent calendar have the
dropping resistor already installed, and there
f
ore can be connected directly to the pins o
f
the IoT board
.
Circuit diagram of an LED with a dropping resistor
1
S
ource: https://www.fool.com/investing/general/2016/01/18/internet-of-things-in-2016-6-stats-everyone-should.asp
x
15007-3 Conrad Adventskalender Internet of Things 2017_en.indd 315007-3 Conrad Adventskalender Internet of Things 2017_en.indd 3 13.08.2017 17:02:5713.08.2017 17:02:57