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Cosmonode ext 04

exostic·Cosmonode_PCBs·Cosmonode_ext04/Cosmonode_ext_04.kicad_pcb

Cosmonode ext 04 PCB layout, top view — open source AVR/Arduino board by exostic

About the Cosmonode ext 04 PCB

Cosmonode ext 04 is an open source AVR/Arduino PCB design by exostic, published on GitHub. It is a 2-layer board measuring 25.4 × 34.3 mm, with 25 components from 22 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the RFM69CW and RN2483. By type, the board carries 9 resistors, 7 capacitors, 6 connectors and 3 ICs.

It belongs with the sensors 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.

Extension 4 : includes driver and connector for PT100 sensor (3wire)

Main components on the Cosmonode ext 04

ATMEGA328P-AURFM69CWRN2483

Cosmonode ext 04 bill of materials (BOM)

25 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-AU
TL431ACDBZR
U1
1
RFM69CW
LMV321
U2
1
RN2483
RT9193-30PB
U3
1
CONN_01X12
PT100
J1
1
CONN_01X12
CONN_01X08
J2
1
GS2
CONN_01X08
J3
1
GS3
J4
1
CONN_01X02
GS3
J5
1
GS2
Aloes_Logo
J6
2
100NF
100nF
C1, C7
1
100NF
1uF
C2
1
100NF
4.7uF
C3
1
47UF
100nF
C4
1
47UF
10nF
C5
1
4.7UF
4.7nF
C6
2
1.8k
R1, R2
1
10K
100R
R3
2
10k
R4, R5
1
180k
R6
1
100K
180K
R7
Show 2 more
QtyPartRefs
1
470K
100R
R8
1
470K
10k
R9

Cosmonode ext 04 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 ext 04: common questions

What microcontroller does the Cosmonode ext 04 use?

The Cosmonode ext 04 is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Cosmonode ext 04 PCB?

The Cosmonode ext 04 measures 25.4 × 34.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cosmonode ext 04?

25 components, from 22 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 ext 04 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 ext 04 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 ext 04 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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