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SnapCore-Devboard-Rev1

Magnetile·magnetile-hardware·SnapCore/KiCAD/DevBoard/SnapCore-Devboard-Rev1/SnapCore-Devboard-Rev1.kicad_pcb

SnapCore-Devboard-Rev1 PCB layout, top view — open source Nordic nRF board by Magnetile

About the SnapCore-Devboard-Rev1 PCB

SnapCore-Devboard-Rev1 is an open source Nordic nRF PCB design by Magnetile, published on GitHub under the MIT license. It is a 4-layer board measuring 26.9 × 47.6 mm, with 51 components from 40 distinct parts.

Its main chip is the NRF52840-QIXX, from the Nordic nRF family. Other key parts include the XC6220B331MR and TP4057. By type, the board carries 20 capacitors, 13 resistors, 3 ICs, 3 diodes, 2 crystals and 2 connectors.

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

From the project

A open source modular wireless input device. Based on nRF52840

Open source modular wireless macropad system

Magnetile is a modular wireless input device. A central hub connects to interchangeable input tiles - mechanical keys, rotary encoders, sliders, display keys - via magnetic pogo pin connectors. The hub presents as a single BLE HID device to the host. Everything is open source.

Tiles are hot-swappable modules. Each tile has its own small MCU communicating over I²C. The hub aggregates all input and handles the BLE stack. A single LiPo cell in the hub powers the entire system through the pogo pins.

SnapCore-Devboard-Rev1, from the project README
From the project README

Main components on the SnapCore-Devboard-Rev1

NRF52840-QIXXXC6220B331MRTP4057

SnapCore-Devboard-Rev1 bill of materials (BOM)

51 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NRF52840-QIXX
nRF52840-QIXX
U1
1
XC6220B331MR
U2
1
TP4057
U4
1
AO3407A
Q1
1
32.768KHZ
32.768KHz
Y1
1
32MHZ
32Mhz
Y3
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J2
1
CONN_01X18_PIN
Conn_01x18_Pin
J3
1
AMCA31-2R450G-S1F-T3
AE2
1
Battery JST 3.7V
BAT_CONN1
1
500MA
500mA
F1
1
TS-1187A
SW2
1
CHG0
RED1
1
C2297
Green
D3
1
C84256
Red
D4
1
C139439
SDM20U40-7, 40V;250mA
D5
1
4.7NH
4.7nH
L1
1
10UH
10uH
L2
4
2.2UF
2.2uF
C1, C3, C13, C22
1
2.2UF
2.2uF
C4
Show 20 more
QtyPartRefs
1
10UF
10uF
C5
3
2.2UF
2.2uF
C6, C11, C12
1
100NF
100nF
C7
1
100NF
100nF
C8
4
12PF
12pF
C9, C10, C20, C21
1
820PF
820pF
C14
1
0.8pF
C15
1
0.5pF
C16
1
100NF
100nF
C18
1
100PF
100pF
C19
2
5.1K
5.1k
R1, R2
1
100K
R6
1
330R
R7
1
4k
R8
1
2.2K
2.2k
R9
1
C22935
1M_1%
R10
1
C23192
510k_1%
R11
2
4.7K
4.7k
R16, R17
1
10K
10k
R18
2
33R
R19, R20

SnapCore-Devboard-Rev1 design files

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

SnapCore-Devboard-Rev1: common questions

What microcontroller does the SnapCore-Devboard-Rev1 use?

The SnapCore-Devboard-Rev1 is built around the NRF52840-QIXX, from the Nordic nRF family.

How big is the SnapCore-Devboard-Rev1 PCB?

The SnapCore-Devboard-Rev1 measures 26.9 × 47.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the SnapCore-Devboard-Rev1?

51 components, from 40 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 SnapCore-Devboard-Rev1 design files?

From the Magnetile/magnetile-hardware 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 SnapCore-Devboard-Rev1 design in my own project?

Yes, under the terms of its MIT license, which Magnetile chose for the repository.

Can I test firmware for the SnapCore-Devboard-Rev1 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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