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Swipe smart ring

Curtisflo·swipe-smart-ring

Swipe smart ring PCB layout, top view — open source board by Curtisflo
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About the Swipe smart ring PCB

Swipe smart ring is an open source PCB design by Curtisflo, published on GitHub under the MIT license. It is a 2-layer board measuring 38 × 10 mm, with 30 components from 21 distinct parts.

Other key parts include the ANNA-B112-02B and LSM6DSV16X. By type, the board carries 8 resistors, 4 capacitors, 3 diodes, 2 ICs, 2 connectors and 1 transistor.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

BLE smart ring main board — 2-layer rigid-flex KiCad PCB (nRF52832 + LSM6DSV16X IMU/Qvar). PCB layout, schematic, footprints.

The main board for a BLE smart ring with IMU-based gesture input and capacitive touch. This repo contains the ring board KiCad project: PCB layout, schematic, and the custom footprints used by both.

Status: prototype, not yet fabricated or tested. Routed and verified in KiCad 9 — DRC clean: 0 errors, 0 warnings, 0 unconnected nets.

It's small — the board outline is 38 × 10 mm (about the footprint of a stick of gum).

Swipe smart ring, from the project README
From the project README

Main components on the Swipe smart ring

ANNA-B112-02BLSM6DSV16X

Swipe smart ring bill of materials (BOM)

30 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ANNA-B112-02B
u-blox
U1
1
LSM6DSV16X
STMicroelectronics
U2
1
IRLML6344TRPBF
Infineon
Q1
1
5034800240
Molex
J1
1
5034800440
Molex
J2
2
ESDALCL5-1BM2
STMicroelectronics
ESD1, ESD2
4
709155001610004
KYOCERA AVX
SP1, SP2, SP3, SP4
1
SWD1
SWD1
1
SWD2
SWD2
1
SWD3
SWD3
1
SWD4
SWD4
1
BAT54W-E3-08
Vishay
D1
2
BL-HG0E136J-TRB
American Bright
D2, D3
2
GRM155R61A104KA01D
100nF
Murata
C1, C2
2
GRM1555C1H111JA01D
110pF
Murata
C7, C8
2
RC0402FR-0710KL
10k
Yageo
R1, R2
1
RC0402FR-072K2L
2.2k
Yageo
R3
2
RC0402FR-07499RL
500R
Yageo
R4, R5
1
RC0402FR-07100RL
100R
Yageo
R6
1
RC0402FR-0782RL
82R
Yageo
R7
Show 1 more
QtyPartRefs
1
RC0402FR-07100KL
100k
Yageo
R8

Swipe smart ring design files

The KiCad project lives in the Curtisflo/swipe-smart-ring repository on GitHub; these links point at the commit this page was built from.

Swipe smart ring: common questions

How big is the Swipe smart ring PCB?

The Swipe smart ring measures 38 × 10 mm, has 2 copper layers and is 0.1 mm thick.

How many components are on the Swipe smart ring?

30 components, from 21 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 Swipe smart ring design files?

From the Curtisflo/swipe-smart-ring 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 Swipe smart ring design in my own project?

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

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