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KOSMO LATTICE

sebastianbeyer·KOSMO_LATTICE

KOSMO LATTICE PCB layout, top view — open source AVR/Arduino board by sebastianbeyer

About the KOSMO LATTICE PCB

KOSMO LATTICE is an open source AVR/Arduino PCB design by sebastianbeyer, published on GitHub. It is a 2-layer board measuring 100 × 200 mm, with 105 components from 42 distinct parts.

Its main chip is the Arduino_Nano_v2.x, from the AVR/Arduino family. Other key parts include the MCP6002_1, 74HC595, L7805 and LM4040LP-5. By type, the board carries 43 resistors, 16 capacitors, 8 connectors, 7 diodes, 6 ICs and 2 transistors.

From the project

KOSMO format Grids clone

Using the Schematic of Mutable Instruments and initial Kicad files by www.quinie.nl

I had to fix the pot direction and the button but now it works! Remember to adjust the LED resistors (R37, R38, R39) to the LEDs your are using! For the firmware I have added the compiled firmware (grids.hex) and a script on how to upload it to your nano (upload.sh, you need to adjust the paths)

KOSMO LATTICE, from the project README
From the project README

Main components on the KOSMO LATTICE

MCP6002_174HC595L7805LM4040LP-5Arduino_Nano_v2.x

KOSMO LATTICE bill of materials (BOM)

105 components, 42 distinct parts.

QtyPartRefs
3
MCP6002_1
U1, U2, U3
1
74HC595
U4
1
L7805
U5
1
LM4040LP-5
U6
1
Arduino_Nano_v2.x
A1
2
2N3904
Q1, Q2
1
CV_X
X1
1
CV_Y
Y1
2
Conn_01x10_Male
J1, J3
2
Conn_01x10_Female
J2, J4
1
clock_out
J5
1
any trig
J6
1
midi in
J7
1
Synth_power_2x5
J8
1
CH1
CH1
1
CH1_ACC
CH1_AC1
1
CV_CH1
CH1_FILL1
1
CH2
CH2
1
CH2_ACC
CH2_AC1
1
CV_CH2
CH2_FILL1
Show 22 more
QtyPartRefs
1
CH3
CH3
1
CH3_ACC
CH3_AC1
1
CV_CH3
CH3_FILL1
1
CV_CLOCK
CLOCK1
7
10k
P_CH1, P_CH2, P_CH3, P_RND1, P_TEMPO1, P_X1, P_Y1
1
CV_RESET
RESET1
1
CV_RND
RND1
1
PB6149-L-s
SW1
2
1N4148
D1, D5
1
CH1
D2
1
CH2
D3
1
CH3
D4
2
1N5817
D6, D7
7
10nf
C1, C2, C3, C4, C5, C6, C16
5
100nf
C7, C8, C10, C11, C12
2
10uf
C9, C14
2
0.47uf
C13, C15
1
2k
R1
30
100k
R2, R3, R4, R5, R6, R7, R8, R9 +22
8
1k
R14, R15, R18, R24, R30, R31, R32, R33
3
2.2k
R37, R38, R39
1
10k
R43

KOSMO LATTICE design files

The KiCad project lives in the sebastianbeyer/KOSMO_LATTICE repository on GitHub; these links point at the commit this page was built from.

KOSMO LATTICE: common questions

What microcontroller does the KOSMO LATTICE use?

The KOSMO LATTICE is built around the Arduino_Nano_v2.x, from the AVR/Arduino family.

How big is the KOSMO LATTICE PCB?

The KOSMO LATTICE measures 100 × 200 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the KOSMO LATTICE?

105 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the KOSMO LATTICE design files?

From the sebastianbeyer/KOSMO_LATTICE repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the KOSMO LATTICE design in my own project?

The repository has no license, so all rights stay with sebastianbeyer. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the KOSMO LATTICE without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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