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DevBoard

VolksEEG·VolksEEG·hardware/DevBoard/DevBoard.kicad_pcb

DevBoard PCB layout, top view — open source Nordic nRF board by VolksEEG

About the DevBoard PCB

DevBoard is an open source Nordic nRF PCB design by VolksEEG, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 134 × 127 mm, with 16 components from 11 distinct parts.

Its main chip is the nRF52840-Feather-Sense, from the Nordic nRF family. Other key parts include the 254, ADS1299EEGFE-PDK and Adafruit-4650-FeatherWing-128x64. By type, the board carries 6 connectors, 6 switches and 4 ICs.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Open Source EEG project

The VolksEEG project is creating an open-source electroencephalogram (EEG) machine, fully-functional for clinical or research use.*

The final device will obtain clearance by the USA FDA, and CE marking (the equivalent of FDA clearance in the EU).*

Currently, no other open-source electronic medical device (that we know of) has full regulatory clearance*

All hardware and software designs will be freely available (free as in speech and as in beer).*

DevBoard, from the project README
From the project README

Main components on the DevBoard

254nRF52840-Feather-SenseADS1299EEGFE-PDKAdafruit-4650-FeatherWing-128x64

DevBoard bill of materials (BOM)

16 components, 11 distinct parts.

QtyPartRefs
1
254
Adafruit_SD_Breakout
Adafruit
U1
1
nRF52840-Feather-Sense
U2
1
ADS1299EEGFE-PDK
U3
1
Adafruit-4650-FeatherWing-128x64
U4
2
Conn_02x06_Odd_Even
J1, J2
1
Conn_02x01
J3
1
Conn_01x10
J4
1
Conn_01x07
J5
1
Conn_02x06_Odd_Even
J6
5
Tact-Switch
SW1, SW2, SW3, SW4, SW5
1
Reset Switch
SW6

DevBoard design files

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

DevBoard: common questions

What microcontroller does the DevBoard use?

The DevBoard is built around the nRF52840-Feather-Sense, from the Nordic nRF family.

How big is the DevBoard PCB?

The DevBoard measures 134 × 127 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DevBoard?

16 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the DevBoard design files?

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

Can I use the DevBoard design in my own project?

Yes, under the terms of its GPL-3.0 license, which VolksEEG chose for the repository.

Can I test firmware for the DevBoard without the hardware?

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

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