EQUIPMENT
Without electricity, electronics cannot
function at all. The electricity for your
experiments will be supplied by a 9-volt (9
V) square battery, which is not included in
the kit. You will have to get one.
Batteries lose their power after they have
been stored a while. So if a battery were to
be included in the kit, it might not have its
full power when you purchased it — and it
wouldn’t be good for anything.
The battery clip will help to conduct
electrical current from the battery to your
circuit. It is easily mounted onto the
battery, with only one orientation being
possible relative to the battery terminals.
The current will then move through the
two loose wires to your circuit.
Battery clip
2.2 MΩ
100 nF
CDS
NTC
GND
+5V...+9V
D0
D1
D2
D3
Digit
BC
EE
n
p
n
BC
EE
p
n
p
10 µF
PWM
Uin
D0 Din
D1
D2
D3
D4
D5
GND
Beep
Start
Reset
+5V
GND
+9V
B
C
T
E
B
C
E
R
3.3 kΩ
10 k
10 F
C
LED
100 nF
CA
AC
UV
ST
O
P
R
C
Ta
A
CA
+
+
–
9 V
–+
M
–+
NTC
PHT
+ 5V
GND
D0
D1
D2
D3
Dig
IR
PWM
D0
D1
D2
D3
D4
D5
GND
Uin
Din
Beep
Start
Reset
+5V
GND
+9V
Mikrocontroller
CE
CE
+
–
Component Illustration Pictorial Representation Schematic Symbol
Safety note
Never connect the terminals of a
battery directly to each other —
the battery might explode!
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