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Nrf52840-microstamp xl

cheyao·nrf52840-microstamp-xl·hardware/nrf52.kicad_pcb

Nrf52840-microstamp xl PCB layout, top view — open source Nordic nRF board by cheyao

About the Nrf52840-microstamp xl PCB

Nrf52840-microstamp xl is an open source Nordic nRF PCB design by cheyao, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 59.7 × 30.5 mm, with 71 components from 38 distinct parts.

Its main chip is the NRF52840, from the Nordic nRF family. Other key parts include the C5213757, SRV05-4, TP4057 and HE9073A33M5R. By type, the board carries 34 capacitors, 11 resistors, 7 diodes, 5 ICs, 5 inductors and 2 transistors.

It belongs with the dev boards & breakouts, iot & wireless and power & battery designs in this gallery.

From the project

nRF52840 devboard in a XL Stamp form

The nRF52840 is a limited-edition nRF52840 development board designed by Icy Electronics for Hackclub. It features a nRF52840 on a small stamp-like form.

It has castellated edges on 3 of the sides, allowing it to be easily soldered onto a carrier board, without having to deal with the aQFN nRF52840 footprint. The board breaks out 36 I/O pins, and also has an embedded 24 pin e-ink connector.

Nrf52840-microstamp xl, from the project README
From the project README

Main components on the Nrf52840-microstamp xl

NRF52840C5213757SRV05-4TP4057HE9073A33M5R

Nrf52840-microstamp xl bill of materials (BOM)

71 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NRF52840
nRF52840
U1
1
C5213757
Conn_Eink_1.9"_Generic
U2
1
SRV05-4
U3
1
TP4057
U4
1
HE9073A33M5R
U5
1
SI1308EDL
Si1308EDL
Q1
1
AO3401A
Q2
1
C383840
32MHz 12pF
Y1
1
C55208
32.768kHz 12.5pF
Y2
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J2
1
C19633668
LiPo
J6
1
C127629
Antenna_Chip
AE2
1
C46640991
Fuse
F1
1
SW_Push
SW1
3
MBR0530
D1, D2, D3
3
LED
D4, D6, D7
1
DSK24
D5
1
4.7NH
4.7nH
L1
1
10UH
10uH
L2
1
15NH
15nH
L3
Show 18 more
QtyPartRefs
1
6.8NH
6.8nH
L5
1
C7427088
47uH 500mA
L6
4
15PF
15pF
C1, C2, C3, C4
1
0.8PF
0.8pF
C5
1
0.5PF
0.5pF
C6
13
1UF
1uF
C7, C11, C17, C23, C24, C25, C26, C28 +5
4
100NF
100nF
C8, C18, C19, C20
1
100PF
100pF
C9
1
820PF
820pF
C10
1
47NF
47nF
C12
3
4.7UF
4.7uF
C13, C15, C16
2
22UF
22uF
C21, C22
3
4.7UF
4.7uF
C27, C29, C34
5
1.5K
1.5k
R1, R2, R7, R8, R11
2
100K
100k
R3, R4
2
5.1K
5.1k
R5, R6
1
2.2R
R12
1
1M
R13

Nrf52840-microstamp xl design files

The KiCad project lives in the cheyao/nrf52840-microstamp-xl repository on GitHub; these links point at the commit this page was built from.

Nrf52840-microstamp xl: common questions

What microcontroller does the Nrf52840-microstamp xl use?

The Nrf52840-microstamp xl is built around the NRF52840, from the Nordic nRF family.

How big is the Nrf52840-microstamp xl PCB?

The Nrf52840-microstamp xl measures 59.7 × 30.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Nrf52840-microstamp xl?

71 components, from 38 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 Nrf52840-microstamp xl design files?

From the cheyao/nrf52840-microstamp-xl 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 Nrf52840-microstamp xl design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which cheyao chose for the repository.

Can I test firmware for the Nrf52840-microstamp xl 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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