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Adafruit nRF52840 Bluefruit Feather Express Rev E

Phalkon-Industries·phoenix-instrument·kicad/feather-schematics/Adafruit nRF52840 Bluefruit Feather Express Rev E.kicad_pcb

Adafruit nRF52840 Bluefruit Feather Express Rev E PCB layout, top view — open source Nordic nRF board by Phalkon-Industries
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About the Adafruit nRF52840 Bluefruit Feather Express Rev E PCB

Adafruit nRF52840 Bluefruit Feather Express Rev E is an open source Nordic nRF PCB design by Phalkon-Industries, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 50.8 × 22.9 mm, with 43 components from 33 distinct parts.

Its main chip is the GD25Q16, from the Nordic nRF family. Other key parts include the LM7705 and ADAFRUIT_FEATHER_NRF52840_EXPRESS. By type, the board carries 10 capacitors, 7 resistors, 6 ICs, 6 diodes, 4 crystals and 2 switches.

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

From the project

Git repo for the content of the new Phoenix ph handheld instrument.

Main components on the Adafruit nRF52840 Bluefruit Feather Express Rev E

GD25Q16LM7705ADAFRUIT_FEATHER_NRF52840_EXPRESS

Adafruit nRF52840 Bluefruit Feather Express Rev E bill of materials (BOM)

43 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
GD25Q16
IC2
1
LM7705
RT9080-3.3
U2
1
ADAFRUIT_FEATHER_NRF52840_EXPRESS
MCP73831T-2ACI/OT
U3
1
—
U$10
1
—
U$12
1
—
U$14
1
AO3401
Q3
1
MicroUSB
X1
1
2x5 0.05"
X2
1
JSTPH
X3
1
32.768 KHz
Y2
1
MDBT50
MDBT1
1
FEATHERWING_NODIM
MS1
2
RKB2
SW1, SW2
2
TPTP12R
SWC0, SWD0
1
TPTP10R
TP1
1
WS2812B_3535FULL
LED1
1
MBR0540
D1
1
RED
D2
1
ORANGE
D3
Show 13 more
QtyPartRefs
1
BLUE
D4
2
TPTP10R
D+0, D-0
1
4.7UH
DNP
L1
2
22pF
C1, C2
2
0.1uF
C3, C10
1
100NF
0.1uF
C4
3
100NF
10uF
C5, C7, C8
1
10UF
10uF
C6
1
4.7UF
10uF
C9
3
4.7K
R2, R4, R5
1
175
4.7K
R3
2
22 ohm
R10, R11
1
10K
100K Pack
R12

Adafruit nRF52840 Bluefruit Feather Express Rev E design files

The KiCad project lives in the Phalkon-Industries/phoenix-instrument repository on GitHub; these links point at the commit this page was built from.

Adafruit nRF52840 Bluefruit Feather Express Rev E: common questions

What microcontroller does the Adafruit nRF52840 Bluefruit Feather Express Rev E use?

The Adafruit nRF52840 Bluefruit Feather Express Rev E is built around the GD25Q16, from the Nordic nRF family.

How big is the Adafruit nRF52840 Bluefruit Feather Express Rev E PCB?

The Adafruit nRF52840 Bluefruit Feather Express Rev E measures 50.8 × 22.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Adafruit nRF52840 Bluefruit Feather Express Rev E?

43 components, from 33 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 Adafruit nRF52840 Bluefruit Feather Express Rev E design files?

From the Phalkon-Industries/phoenix-instrument repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Adafruit nRF52840 Bluefruit Feather Express Rev E design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Phalkon-Industries chose for the repository.

Can I test firmware for the Adafruit nRF52840 Bluefruit Feather Express Rev E 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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