HardLabs

Cosmonode ext01

exostic·Cosmonode_PCBs·Cosmonode_ext01/Cosmonode_ext01.kicad_pcb

Cosmonode ext01 PCB layout, top view — open source AVR/Arduino board by exostic

About the Cosmonode ext01 PCB

Cosmonode ext01 is an open source AVR/Arduino PCB design by exostic, published on GitHub. It is a 2-layer board measuring 12.7 × 10.2 mm, with 8 components from 8 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. By type, the board carries 6 connectors, 1 IC and 1 capacitor.

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.

Universal node, plug and play extensions to ease sensors connection.

- Compile and flash with Arduino IDE - MCU = ATMega328P-AU - radio = RN2483 / RFM69CW ( communications based on LoRaWan or MySensors protocol ) - 3.3V regulation ( XC6206P332MR ) - Powered by 3.7V LiPo battery ( 2 pins JST connector ) - Battery charging ( MCP7831 ) - State LED's - Jumpers to activate radio reset, LED's, on/off switch - Button for reset / config mode, or anything else! - ATSHA204 to allow hardware unique signature ( no use with RN2483 )

Main components on the Cosmonode ext01

ATMEGA328P-AU

Cosmonode ext01 bill of materials (BOM)

8 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-AU
SI7020-A20-YM0R
U1
1
CONN_01X12
CONN_01X04
J1
1
CONN_01X12
CONN_01X01
J2
1
GS2
GS3
J3
1
CONN_01X01
J4
1
CONN_01X02
CONN_01X01
J5
1
GS2
CONN_01X01
J6
1
100NF
100nF
C1

Cosmonode ext01 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 ext01: common questions

What microcontroller does the Cosmonode ext01 use?

The Cosmonode ext01 is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Cosmonode ext01 PCB?

The Cosmonode ext01 measures 12.7 × 10.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cosmonode ext01?

8 components, from 8 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 ext01 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 ext01 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 ext01 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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