ANTUMBRA KLIK User manual

ANTUMBRA
KLIK
MANUAL

TABLE OF CONTENTS
01. INSTALLATION 4
02. FRONT 5
03. STEPS PAGE 6
04. MENU 8
05. EUCLIDEAN MODE 10
06. PLAYMODE MENU 11
07. LAST STEP MENU 12
08. RANDOM AMOUNT 13
09. SOFTWARE MODIFICATIONS 14
10. BILL OF MATERIALS 15
11. BUILD NOTES 16
12. BUILD 17
13. UPLOADING SOFTWARE 23

00. THANK YOU!
Thank you for purchasing the Antumbra KLIK module!
In this documentation you can find information about the
installation and use of the module, also an assembly in-
struction if you bought the DIY version.

01. INSTALLATION
POWER CABLE HEADER: Red stripe should be on the
bottom, next to the white marker!
When you turn the KLIK around, you should see the mod-
ule as it is on the left illustration. Plug in the power cable
to the power cable header pins, but BE CAREFUL with the
orientation of the cable! The RED STRIPE should be on the
BOTTOM of the module, indicated by the white line below
the header pins. By doing otherwise you can potentially
harm the module or even your whole system! Power off
your eurorack system and connect the other end of the
cable to the power source, here also pay attention to the
PSU manufacturer’s instructions!
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102

02. FRONT
INTERFACE
ENCODER WITH PUSH BUTTON
CLOCK INPUT JACK
RESET INPUT JACK
OUTPUT JACK

03. STEPS PAGE
When you first launch the module, you should see the
first LED blinking, this is your cursor. Rotate the encoder
to move it around.
You can enter steps by pushing the encoder button, if a
step is entered, the current step will be blinking brighter,
the other steps will be indicated by being on constantly.
If you connect a trigger source to the clock input jack,
you can see the playhead going. This is the dimmest of the
LEDs and it always dims the current step a bit to indicate
it’s whereabouts. On active steps it outputs a trigger on
the output jack.
To remove a step, simply navigate to it with the cursor,
and press the button, now the cursor should blink darker.

03. STEPS PAGE
You can offset the pattern by pushing and turning the
encoder. The pattern will wrap around, meaning that if
there is a trigger on the last step and you offset it to the
right by one, it will go on the first step.

04. MENU
To enter or exit the menu, press and hold the encoder
button for 1 second. You can select pages by turning the
encoder. Upon entering the menu you see the first page:
EUCLIDEAN MODE: Enter euclidean mode, the current pat-
tern is overriden.
LAST STEP SELECT: Click here to modify which should be
the last step of your sequence, allowing you to create
shorter than 16 step sequences. More on this later.
PLAY MODE: Click on this page where you can enter the
play mode menu, here you can set the way how the play-
head should act. More on this later.

04. MENU
RANDOM PATTERN: Click here to generate random pat-
terns, each click of the button instantly creates a new
pattern, you can edit the pattern by exiting the menu.
RANDOM RESET: If this setting is ON, it generates a ran-
dom pattern every time the reset input receives a trigger.
By default this setting is OFF.
RANDOM AMOUNT: Enters random amount select, here you
can set how many random steps are generated by the ran-
dom reset and random pattern functions.
RESET: Resets all the settings and the pattern to it’s de-
fault value. (All steps off, playmode: FWD, last step: 16,
random reset: OFF)

05. EUCLIDEAN MODE
Euclidean patterns are generated by dividing a given
amount of steps with a number of fills equally. As there
are odd numbers left, it generates interesting patterns.
In this mode you can select the number of fills by turning
the encoder, and select the pattern length in the pattern
length menu, and the fills adjust to this accordingly.
You can edit this pattern by exiting the menu.
16 step euclidean patterns, with fill from 1-16.

06. PLAYMODE MENU
Upon entering this menu, you can change the behavior of
the playhead. By turning the encoder, you can see a ver-
tical line moving. Each line represents a playmode, if the
cursor is on the current playmode, there is one vertical
line shining bright, if it’s not, there are two lines, one
brighter (current playmode), and one dimmer (cursor).
Click the button to select playmode, click again on the
same position to exit to the menu, or hold the button for
one second anywhere to exit the menu entirely.
PLAYMODES:
Forward • Backward • Pendulum • Random

07. LAST STEP MENU
When you first enter this menu, all LEDs should be ON
dim, and the last one bright. The dim LEDs represent the
active steps, the bright LED represents the last step of
the sequence. When you turn the encoder, the LEDs turn
off one by one, to make the sequence the selected length,
press the button. To exit to the menu press the button
again on the last step, or press the button for one second
to exit the menu entirely.

08. RANDOM AMOUNT
Here you can set the maximum number of random steps
generated by “generate pattern” and “random resets”.
On 0 steps lit, the generation is completely random so it
can happen that all the steps will be OFF and that all will
be ON.

09. SOFTWARE MODIFICATIONS
Feel free to modify the software of your module, but at
your own risk! Antumbra doesn’t take responsibility for
damaged microcontrollers, if you proceed from here I as-
sume you know what you are doing.
If you are unsure of what you are doing, please contact
Antumbra in email at [e-mail]!
Use the 6 pin SPI header on the back to upload code to the
module. You will need an AVR programmer or an Arduino
for this.
SPI header
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102

10. BILL OF MATERIALS
QTY PART
2 470 RESISTOR 1/4W 1%*
1 1K RESISTOR 1/4W 1%*
1 2.2K RESISTOR 1/4W 1%*
4 10K RESISTOR 1/4W 1%*
2 100K RESISTOR 1/4W 1%*
2 100NF CAPACITOR*
2 22PF CAPACITOR*
2 10UF CAPACITOR
1 16MHZ CRYSTAL OSCILLATOR
1 ATMEGA 328P-AU
1 TLC5940 LED DRIVER
2 MMBT3904 NPN TRANSISTOR
1 7805 5V VOLTAGE REGULATOR
1 1N5819HW DIODE
1 2X3 PIN HEADER
QTY PART
1 2X5 PIN HEADER
3 THONKICONN JACK
16 3MM LED
1 ENCODER WITH PUSHBUTTON
1 KNOB FOR ENCODER
1 10MM M3 FEMALE-FEMALE SPACER
2 M3 SCREW
*0603 SMD
You can find a Mouser cart and Excel BOM on the website.

11. BUILD NOTES
Before you start building look through the build manual
so that you’ll be familiar with the building process and
you won’t run into any surprises! :)

12. BUILD
00. Orient the PCB as seen on the left
01. Solder the ATMEGA328P-AU in place
(the dot should be on the bottom right)
02. Solder the TLC5940 in place
(the notch should be on the right)
03. Solder the 7805
04. Solder the two MMBT3904
00
ATMEGA328P-AU
01
TLC5940
ATMEGA328P-AU
02 0403
TLC5940
ATMEGA328P-AU
7805
TLC5940
ATMEGA328P-AU
7805

12. BUILD
05. Solder the crystal
06. Solder the diode
Orientation matters, marker should be on the left!
07. Solder the four 10k resistors
08. Solder the two 100k resistors
09. Solder the single 2.2k resistor
05 06 07 0908
TLC5940
ATMEGA328P-AU
7805
16.000
TLC5940
ATMEGA328P-AU
7805
16.000
103 103
103
103
TLC5940
ATMEGA328P-AU
7805
16.000
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000

12. BUILD
10. Solder the single 470 ohm resistor
11. Solder the single 1k resistor
12. Solder the two 22pF capacitor
13. Solder the two 100nF capacitor
14. Solder the two 10uF capacitor
Orientation matters, align them with the drawing on
the board.
10 11 12 13 14
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102

12. BUILD
13. Solder the pin headers
14. Turn around the board
DO NOT SOLDER YET!
15. Place the 3 jacks
16. Place the encoder
17. Place the 16 LEDs, longer leg goes in the hole marked
with a + symbol.
13 14 15 16 17
222
103 103
103
103
104
104
TLC5940
ATMEGA328P-AU
7805
16.000
470
102