2 layers81.3 × 48.3 mm
Sw63 mk4 displaytestboard
xx0x/sw63
Sci-fi inspired electronic watch. MK4 currently in the development (out in 2026).
51 parts2MIT
4 layers34.8 × 35.6 mm
Sw63 mk4 v2
xx0x/sw632Sci-fi inspired electronic watch. MK4 currently in the development (out in 2026).
- Size
- 34.8 × 35.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 75
- Pads
- 256
- Tracks, vias
- 926, 105
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Dec 2019
- Updated
- 14 May 2026
Overview
Sw63 mk4 v2 is an open-source printed circuit board by xx0x, from the xx0x/sw63 repository on GitHub, published under the MIT licence. It is a 4-layer board of 34.8 × 35.6 mm with 70 parts on 75 nets, routed with 926 tracks and 105 vias.
It is built around the TEMT6200FX01, DIO5518BST5 and DS3231MZ/V+, with the XL-3216UWC, 0603L020/30XR and DMG2302U-7-VB among its other parts. Its parts include 22 diodes, 16 resistors, 12 capacitors, 7 ICs and 3 transistors. It belongs with the STM32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
9
TEMT6200FX01
0805-40℃~+100℃ 0.85mm 1.25mm 2mm Light Intensity 0805 Ambient Light Sensors ROHSVishay IntertechnologyAmbient Light Sensors
DIO5518BST5
SOT-23-5-40℃~+85℃ 1 4.2V 4.5V~5.5V 800mA SOT-23-5 Battery Management ROHSDIOOBattery Management
DS3231MZ/V+
SOIC-8-40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Alarm function、Locking and tamper-proof、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
XL-3216UWC
1206-40℃~+85℃ 1.3cd 12000K~27000K 120° 20mA 3.4V 70mW Discrete Diode Top-mount White Yellow Lens 1206 LED Indication - Discrete ROHSXINGLIGHTLED Indication - Discrete
0603L020/30XR
0603-40℃~+85℃ 1.05mm 1.85mm 1mm 200mA 30V 3Ω 40A 500mA 500mW 550mΩ 600ms 0603 Resettable Fuses ROHSLUTEResettable Fuses
DMG2302U-7-VB
SOT-23(TO-236)MOSFETsVBsemi ElecDMG2305UX-7
SOT-23-55℃~+150℃ 1 P-Channel 1.4W 10.2nC@4.5V 20V 52mΩ@4.5V、100mΩ@2.5V 5A 77pF 808pF 85pF 900mV P-Channel SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
GT-USB-7070C
SMD-40℃~+85℃ 1 10,000 Cycles 16P 2.39mm 24V 5A 7.85mm Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSG-SwitchUSB Connectors
MS2A40LWS
SOD-323Schottky DiodesMSKSEMI
README
README.md
Space Watch SW63
Sci-fi inspired electronic watch.
MK4 in the development, out in 2026.
How to tell the time?
When the button is briefly pressed, SW63 tells you the time using a sequence of LED blinks. It's not a binary clock, it's inspired by the analog clock hands movement and uses quarters, halves and so on; similar to how people used to tell the time before the digital clock became popular.
16:35
half past - four - hours - and - five - minutes - PM
6:57
three - minutes - to - whole - seven - hours
Language can be changed in the watch menu to reflect the different ways different languages express the time ("half past five" in English is "half of six" in German etc).
See LANGUAGES.md for the full list and examples.
Controls
Short press: Show the time
Long press: Enter Menu (setting the language and time)
Extra long press: Enter Secret settings
Multiple short presses: Show animation
In Menu / Secret settings:
Short press: Change
Long press: Confirm and go to next
BOM (DIY Kits)
| Name | Part Number | Qty |
|---|---|---|
| PCB with assembled SMD components | custom part | 1 |
| Red 5 mm LED | LL-503VD2E-V1-4D | 1 |
| Green 5 mm LED | LL-504PGD2E-G5-2B | 1 |
| Blue 5 mm LED | LL-504BD2E-B4-2B | 1 |
| Yellow 5 mm LED | N0Y64L35 L-53SYD L-53SYDK | 1 |
| Yellow 3×2 mm LED | LL-234YD2Q-1B | 4 |
| Red 3 mm LED | FYL-3014LRD1A FYL-3014SRT1A | 1 |
| Li-Po battery LP301020 or LP301120* | AKY0471 SparkFun 13852 SparkFun 25270 | 1 |
| CNC aluminium enclosure | custom part | 1 |
| Screw M1.6 length 4mm (hex socket) | - | 4 |
| 18 mm watch spring bar | - | 2 |
| 18 mm watch strap | - | 1 |
[!WARNING] *Note: Due to the shipping restrictions the Li-Po battery isn't part of the DIY Kit. Please provide your own 40 mAh battery with dimensions 20 mm × 11 mm × 3 mm (or smaller) with the integrated protection circuit.
License
Schematics, Hardware Designs
CERN-OHL-P-2.0
Code
MIT
Visual elements, Graphics, Documentation
CC BY-SA 4.0
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | XL-3216UWC | sw63_mk4:LED_1206_W | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 7 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C9, C10, C11, C12 |
| 5 | 10u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C7, C8 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7 |
| 4 | 22k | Resistor_SMD:R_0402_1005Metric | R3, R14, R15, R16 |
| 4 | 5k1 | Resistor_SMD:R_0402_1005Metric | R1, R2, R9, R10 |
| 4 | LL-234YD2Q-1B (Yellow) | sw63_mk4:LED_W3.0mm_H2.0mm_Y | D17, D18, D19, D20 |
| 4 | MountingHole | sw63_mk4:MountingHole_1.6mm | H1, H2, H3, H4 |
| 3 | TLC5916IPWR | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U3, U4, U5 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R11, R12 |
| 1 | 0603L020/30XR | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | 220k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | Conn_01x02 | sw63_mk4:BAT | J3 |
| 1 | DIO5518BST5 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | DMG2302U-7 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | DMG2305UX-7 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | DS3231MZ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | FYL-3014LRD1A (Red) | sw63_mk4:LED_D3.0mm_R | D21 |
| 1 | GT-USB-7070C | sw63_mk4:GT-USB-7070C | J1 |
| 1 | KSC321J LFS | sw63_mk4:SW_Push_1P1T_NO_CK_KSC3xxJ | SW1 |
| 1 | L-53SYDK (Yellow) | sw63_mk4:LED_D5.0mm_Y | D13 |
| 1 | LL-503VD2E-V1-4D (Red) | sw63_mk4:LED_D5.0mm_R | D16 |
| 1 | LL-504BD2E-B4-2B (Blue) | sw63_mk4:LED_D5.0mm_B | D14 |
| 1 | LL-504PGD2E-G5-2B (Green) | sw63_mk4:LED_D5.0mm_G | D15 |
| 1 | MCP1711T-3.3I/OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | MS2A40LWS | Diode_SMD:D_SOD-323 | D22 |
| 1 | STM32L052K8Ux | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U7 |
| 1 | SWD | sw63_mk4:SWD_2x03_SMD | J2 |
| 1 | TEMT6200FX01 | sw63_mk4:TEMT6200FX01 | Q3 |
| 1 | EVQ-P7J01P | Button_Switch_SMD:SW_SPST_EVQP7A | SW2 |
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Questions
How big is the Sw63 mk4 v2 PCB?
It measures 34.8 × 35.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Sw63 mk4 v2 use?
70 parts, built around the TEMT6200FX01, DIO5518BST5, DS3231MZ/V+ and XL-3216UWC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Sw63 mk4 v2 KiCad files?
From the xx0x/sw63 repository on GitHub, at the commit this page was made from: the board is pcb/sw63_mk4_v2/sw63_mk4_v2.kicad_pcb and its schematic .archive/mk4/sw63_mk4_displaytestboard/sw63_mk4_displaytestboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sw63 mk4 v2 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).