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Open smartwatch light

Open-Smartwatch·open-smartwatch-light

Open smartwatch light PCB layout, top view — open source board by Open-Smartwatch
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About the Open smartwatch light PCB

Open smartwatch light is an open source PCB design by Open-Smartwatch, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 36.1 × 36.1 mm, with 51 components from 27 distinct parts.

Other key parts include the DS3231MZ, BMA400, GC9A01_IPS_display, USB-OTG and CH340E. By type, the board carries 17 capacitors, 17 resistors, 10 ICs, 4 switches, 1 transistor and 1 connector.

It belongs with the wearables and rf & radio designs in this gallery.

From the project

Hardware design files. Light version (no GPS, no uSD) of the open-smartwatch

Repo for kicad schematic, board and gerber files. This project is in development and is not ready for release.

To view/modify the files from this repository, install KiCAD from: https://kicad.org

Also, add the following Symbol/Footprint library to KiCAD: https://github.com/Open-Smartwatch/Kicad-Libraries

See: https://htmlpreview.github.io/?https://github.com/Open-Smartwatch/open-smartwatch-light/blob/main/docs/bom/osw-light-ibom.html

Main components on the Open smartwatch light

DS3231MZBMA400GC9A01_IPS_displayUSB-OTGCH340Ettgo-32-microTPS2115AXC6209MCP73831T-2ACI_OT

Open smartwatch light bill of materials (BOM)

51 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DS3231MZ
U1
1
BMA400
U2
1
GC9A01_IPS_display
U4
1
USB-OTG
U5
1
CH340E
U6
1
ttgo-32-micro
U7
1
TPS2115A
U9
2
XC6209
U10, U13
1
MCP73831T-2ACI_OT
U11
1
2N7002
Q1
1
Conn_01x02
J1
4
SW_Push
SW1, SW2, SW4, SW5
1
LED_Green
D1
2
4.7uF
C1, C2
11
0.1u
C3, C4, C8, C9, C11, C13, C14, C15 +3
2
100u
C5, C6
2
4.7u
C16, C17
1
22
R1
2
470R
R4, R13
2
1k
R6, R7
Show 7 more
QtyPartRefs
6
10k
R8, R9, R10, R11, R17, R21
1
510R
R14
1
5k
R15
1
200k
R16
1
2.2K
R18
1
220k
R19
1
1M
R22

Open smartwatch light design files

The KiCad project lives in the Open-Smartwatch/open-smartwatch-light repository on GitHub; these links point at the commit this page was built from.

Open smartwatch light: common questions

How big is the Open smartwatch light PCB?

The Open smartwatch light measures 36.1 × 36.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Open smartwatch light?

51 components, from 27 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 Open smartwatch light design files?

From the Open-Smartwatch/open-smartwatch-light repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Open smartwatch light design in my own project?

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

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