Robaux SWT16 User manual

LEDs
We start with the button board.
Attach and solder the sixteen
LEDs as shown in the picture.
Please pay attention to the po-
larity of the LEDs. The long leg
goes into the + hole, the short
leg into the - hole.
1
Assembly Guide
With these assembly instruc-
tions, you can quickly build your
SWT16. All required compo-
nents are included in this kit.
You need the following tools:
soldering iron, wire cutter, and
solder. Also a desoldering pump
and a nut driver.
Read the instructions carefully
and follow the steps in the cor-
rect order. Robaux wishes you
much fun building the Sweet 16
Sequencer.

20 Pin Header
Next, solder the two 20-pin
headers to the back of the
button board. It is best rst to
solder the two outer pins and
then the remaining pins.
2
4x4 Keypad
Now place the 4x4 Button Key-
pad on the front of the Button
Board. Make sure that the holes
on the keypad match the holes
on the button board.
3

Frame
Now put the frame on the
keypad. Make sure the holes
in the frame match the holes in
the keypad.
4
Frontpanel
Now it‘s time to put the front pa-
nel on the buttons. Make sure
that the small arrow on the back
side of the PCBs is pointing to
the top left.
5

Screws
Now x the front panel, the
frame, the keypad and the but-
ton board with the two screws.
Insert the screws through all
parts as shown in the picture.
6
Nuts
Secure the screws with the
washers and nuts.
7

Allen key
Tighten the screws with the
supplied Allen key. Please do
not over tighten the screws so
that none of the parts will be
damaged.
8
Resistor 220
Now pick up the motherboard
and solder the nineteen 220
ohm resistors as shown in the
picture. You can recognize the
resistors by their color code
Red, Red, Brown, Gold.
9

Resistor 10K
Now solder the three 10K
resistors to the board. You
can recognize the resistors by
their color code Brown, Black,
Orange, Gold.
10
Diodes
Now solder the sixteen diodes
to the board as shown in the
picture. Please pay attention to
the polarity!
11

Crystal
Now solder the 16MHz crystal
as shown in the picture.
12
Array 10K
There are even more 10K resis-
tors in the form of two resistor
arrays. Solder the two arrays
as shown in the picture. Please
note that the arrays soldered
in the right direction: the GND
must point upwards.
13

Array 1K
There are even more resistor
arrays. Solder the eight 1K
resistors to the circuit board
as shown in the picture. These
arrays do not have a specic
direction to follow.
14
Capacitor 220
Now solder the two 220 capa-
citors to the board as shown in
the picture.
15

Capacitor 104
Now solder the two 104 capa-
citors to the board as shown in
the picture.
16
Rectier
Now it‘s time for the rectier.
Solder this to the PCB as
shown in the picture. Note that
the - and + symbols on the
board match the symbols on
the rectier.
17

IC Sockets
Now solder the seven IC so-
ckets to the board. It is easiest
to solder rst only the outer pins
and then the remaining ones.
18
4 Pin Headers
Place and solder the both Male
Pin Headers as shown in the
picture. It is the shorter pins
of the pin header that you are
soldering.
19

Step Down
Now solder the step-down ad-
apter to the pins as shown
in the picture. Please note that
the names of the pins on the
adapter match those on the
PCB.
20
Power Socket
Now solder the power socket
as shown in the picture. Notice
that the socket points in the
right direction.
21

Capacitors
Now solder the two Electrolytic
Capacitors to the board as
shown in the picture. Please
pay attention to the polarity of
the Capacitors. The white mark
must match the mark on the
PCB.
22
Button
Now ip the Mainboard and
plug the button as shown in the
picture. Notice that the white
mark on the button matches the
white mark on the PCB.
Please do not solder the
button yet!
23

Jacks
ow plug the nineteen jack
sockets on the motherboard. If
you like, you can trim the pins
of the jacks to the same length.
Please do not solder them
yet!
24
Washer
Place a washer on each jack.
This ensures that the jacks
have the correct distance to the
front panel.
25

Knurled Nuts
Now place the front panel with
the buttons on the main board.
Align all the jacks and x them
with the knurled nuts.
26
Long Pins
Be especially careful because
now comes the tricky part!
Insert the long pins through the
mainboard into the header of
the button board. Align everyt-
hing carefully and then solder
the long pins to the main board.
27

Trim the pins
Now trim the long pins as
shown in the picture. Then
resolder the pins. Then solder
all jacks and the button on the
main board.
28
Shift Registers
Now insert the Shift Registers
into the sockets. Be sure to
attach them in the correct direc-
tion as shown in the picture.
29

ATmega
Now insert the ATmega into the
socket. Be sure to attach it in
the correct direction as shown
in the picture.
30
Voilà
Congratulations! Your module
is ready and can be installed in
your case. Make sure the pow-
er cable is plugged in the right
way on both connectors. Enjoy
creating beats with the Robaux
Sweet 16!
31

PCB Adapter
Everything is nished - but
there is still an unused part?
The new version of the Robaux
SWT16 uses an ATmega328
chip instead of the Arduino
Nano from the previous version.
It is still possible to use an
Arduino Nano with the included
PCB adapter. You can quickly
put it where the ATmega is
located.
However, an Arduino Nano and
the required pin headers are
not included in the kit.
Of course, the PCB adapter
works the other way around
too! So you can replace an
Arduino Nano with an
ATmega328 chip.
All you have to do is solder a
16MHz crystal and two 220
capacitors. How easy is that?