UNIT UNLIKELY THE LUNCHBOX User manual

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1

note
2
Check whether you have got all the parts as
pictured below. If not Contact us at:
[e-mail].
in case your printed circuit board is not white you
might have a different version of the lunchbox.
This manual can be found at:
www.unitunlikely.com/manualblackedition.pdf
Unpack

note
3
This board is called a printed circuit board (PCB for
short).
The side pictured below will be refered to as the top
side. The legs of the components will be sticking out
from the down side.
the pcb
amount: 1
North side
south side
west Side east Side

note
4
It does not matter in which direction you solder the
resistors. Components that have this feature are
called non-polarized.
The resistors have color codes to indicate their
resistance. Super convenient!
Find the 5 resistors with the color code
Brown-Black-Red-Gold and solder them on
locations R1, R2, r3, r4, r5.
resistor 1k
amount: 5
location: R1, R2, R3, R4, R5

note
5
These resistors are color coded with
Brown-Black-Orange-Gold stripes.s
Resistor 10K
amount: 2
location: r6, r7

6
The diode is a component that functions like a “one-
way-street”. It lets current go one way, but not the
other and will protect the more sensitive
components of the Lunchbox if you connect the
battery on the wrong way.
The diode is a polarized component. This means that
the direction it is soldered matters. Make sure to
check you solder it as indicated on the PCB. The
grey band indicates the negative side of the diode.
The grey band of the component should be on the
left.
Diode
amount: 1
location: D1
note

7note
Solder the Sockets on the places indicated by IC1
and IC2. Mind the visual indication on the PCB and
try to match it with the sockets.
In case you didn’t, don’t worry it is more a convention
in electronics than a crucial thing to safegaurd the
Lunchbox from working.
Furthermore, make sure that each leg is properly
soldered and that no legs are connected to
another.
IC sockets
amount: 2
location: ic1, ic2

note
8
there are three similar looking capacitor but only
one has the digits 103 printed onto it and it should
be slightly smaller than the other two. This is the
capacitor you need to solder.
The component is non-polarized.
capacitor 10nf
amount: 1
location: c1 103

note
9
these capacitors are slightly bigger than the
previous one. The digit 104 is printed onto them.
capacitor 100nf
amount: 2
location: c2, c3 104

note
10
A LED is polarized. if you look closely, has one flat
side which indicates the negative side (-). Match the
flat side of the LED to the flat side of the print on
the PCB.
Another tip: The long leg within electronics often
indicates the positive side (+).
Make sure that the flat side (with the short leg) is
on the south side of the print.
LED
amount: 1
location: LED1

note
11
The LDR is a resistor that varies in resistance when
it catches light. The LDR is non-polarized so it can be
soldered in either direction.
Please make sure that you do not solder the LDR to
tight on the PCB but make sure that a small part of
its legs still stick out so that you can eventually
bend it in the direction of the LED.
LDR
amount: 1
location: LDR

note
12
Note that you have four similar looking
components, however only 3 are 1M, the other one
is 100K. The values are recognizable by the white
print on the top.
The text on top of this compenent should start with
1m.
potmeter1m
amount: 3
location: pot1, pot2, pot3

note
13
This is the other potmeter. its text on top should
start with 100k.
potmeter100k
amount: 1
location: pot4

note
14
Solder the Battery Clip’s red wire to the VCC and
the black wire to the GND.
The battery that matches this connection is a 9V.
battery clip
amount: 1
location: vcc + GND

note
15
Solder the headphone connector onto the location
marked on the east side of the pcb.
Now give the PCB some time to cool down! The
following components are sensetive to heat. A PCB
stays hot a short while after you soldered a
component. This excesive heat can damage the
components in the next steps. Just take it slowly
from here on and you’ll be fine~.
headphone
amount: 1
location: right side of the pcb

16 note
The negative side of the capacitor is distinguished
by the grey stripe that has been printed on the
side of its casing.
Another tip: make sure that the longer leg of the
component goes in the hole marked with a plus.
Note that you have two similar looking
capacitors look on the writings on the side for
the right one. It is crucial that you solder this
components on correctly in order for the circuit to
work. The capacitor for the C4 location is black.
Give the component time to cool down before
progressing to the next step.
elco 1uF
amount: 1
location: c4
the grey stripe shoud
be facing the LED.

17 note
It is crucial that you solder this components on
correctly in order for the circuit to work. Give
the
component time to cool down before progressing
to the next step.
This component should be dark blue (/purple) with
a light blue stripe on its negative side like the elco
from step 16.
Solder it in such way that the light blue stripe faces
de diode (on location d1).
elco 22uf
amount: 1
location: c5

18 note
Put the NE556N IC in the socket soldered at
location IC1. Make sure that the small gap of the
NE556N IC is on the left side and matches the gap of
the drawing on the PCB.
Tip: if the legs are too wide, gently bend them
inwards before pushing it in its socket.
ne556
amount: 1
location: IC1

19 note
Put the NE555N IC in the socket soldered on
location IC2. Make sure that the small gap of
the NE555N IC is on the left side and matches the
drawing on the PCB.
ne555n
amount: 1
location: ic2

20 note
Click the knobs into the potentiometer. Push till
they make a clicking sound and they are nice and
secure.
knobs
amount: 4
location: pot1, pot2, pot3, pot4