HardLabs

Cosmonode

exostic·Cosmonode_PCBs·Cosmonode/Cosmonode.kicad_pcb

Cosmonode PCB layout, top view — open source AVR/Arduino board by exostic

About the Cosmonode PCB

Cosmonode is an open source AVR/Arduino PCB design by exostic, published on GitHub. It is a 2-layer board measuring 59.7 × 36.2 mm, with 47 components from 30 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the RFM69CW, RN2483, XC6206P332MR, ATSHA204 and MCP73811T-420I/OT. By type, the board carries 12 connectors, 11 resistors, 9 capacitors, 6 ICs, 5 diodes and 2 jumpers.

It belongs with the sensors and power & battery designs in this gallery.

From the project

Kicad plans to design a base node as the main PCB. It also contains extensions adapted for different set of sensors/connectors.

The core is based on ATMega328P-AU, RFM69CW, M25P40

- Compile and flash with arduino - RF communications based on MySensors protocol - OTA upload - Powered by LiPo battery ( 2 pins JST connector ) - ATSHA204 to allow hardware unique signature - Universal node, plug and play extensions to ease sensors connection

Main components on the Cosmonode

ATMEGA328P-AURFM69CWRN2483XC6206P332MRATSHA204MCP73811T-420I/OT

Cosmonode bill of materials (BOM)

47 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-AU
U1
1
RFM69CW
U2
1
RN2483
U3
1
XC6206P332MR
U5
1
ATSHA204
U6
1
MCP73811T-420I/OT
U7
1
CRYSTAL_GND2
Crystal_GND2
Y1
2
CONN_01X12
J1, J2
4
GS2
J3, J6, J9, J14
1
CONN_01X02
J5
1
USB_OTG
J8
1
Aloes_Logo
J11
1
Aloes_mini_Logo
J12
1
CONN_01X05
J13
1
COAX
P1
1
Jumper_NO_Small
JP1
1
Jumper_NC_Dual
JP2
1
SW_DIP_X01
SW_DIP_x01
SW1
2
MBR0520
D1, D2
3
LED
D3, D4, D5
Show 10 more
QtyPartRefs
6
100NF
100nF
C1, C2, C3, C7, C8, C9
2
47UF
47uF
C4, C5
1
4.7UF
4.7uF
C6
1
10K
10k
R3
5
1k
R4, R5, R12, R13, R14
1
0
R6
1
100K
100k
R7
1
470K
1M
R8
1
470K
470k
R9
1
R
R11

Cosmonode design files

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

Cosmonode: common questions

What microcontroller does the Cosmonode use?

The Cosmonode is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Cosmonode PCB?

The Cosmonode measures 59.7 × 36.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cosmonode?

47 components, from 30 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Cosmonode design files?

From the exostic/Cosmonode_PCBs repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Cosmonode design in my own project?

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

Can I test firmware for the Cosmonode 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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