Watch-DevKit-HW
About the Watch-DevKit-HW PCB
Watch-DevKit-HW is an open source PCB design by ZSWatch, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 100 × 70 mm, with 100 components from 57 distinct parts.
Other key parts include the nPM1300-QEXX, APDS-9306-065, BMI270, LIS2MDLTR and BMP581. By type, the board carries 25 capacitors, 24 crystals, 23 resistors, 12 ICs, 5 switches and 4 transistors.
It belongs with the wearables designs in this gallery.
From the project
The hardware repo for the ZSWatch Development Kit.
. ├─ Computations # Misc calculations ├─ HTML # HTML files for generated webpage ├─ Images # Pictures and renders │ ├─ kibotresources # External resources for KiBot │ ├─ colors # Color theme for KiCad │ ├─ fonts # Fonts used in the project │ ├─ scripts # External scripts used with KiBot │ └─ templates # Templates for KiBot generated reports │ ├─ kibotyaml # KiBot YAML config files ├─ KiRI # KiRI (PCB diff viewer) files │ ├─ lib # KiCad footprint and symbol libraries │ ├─ 3dmodels # Component 3D models │ ├─ libfp # Footprint libraries │ └─ lib_sym # Symbol libraries │ ├─ logos # Logos │ ├─…
Main components on the Watch-DevKit-HW
Watch-DevKit-HW bill of materials (BOM)
100 components, 57 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | nPM1300-QEXX | QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm_ThermalVias | IC401 |
| 1 | APDS-9306-065 | Broadcom_DFN-6_2x2mm_P0.65mm | IC501 |
| 1 | BMI270 | Bosch_LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | IC502 |
| 1 | LIS2MDLTR | LGA-12_2x2mm_P0.5mm | IC503 |
| 1 | BMP581 | Bosch_LGA-10_2x2mm_P0.5mm_ClockwisePinNumbering | IC504 |
| 1 | DRV2603RUNT | WQFN-10_2x2mm_P0.5mm | IC505 |
| 1 | PCA9306JK | XSON-8_0.65x0.17mm_P0.35mm | IC506 |
| 1 | RV-8263-C8 | RV-8263-C8 | IC507 |
| 1 | FAN5622SX | TSOT-23-6 | IC601 |
| 1 | USBLC6-2P6 | SOT-666 | IC602 |
| 1 | MX25U51245GZ4I00 | WSON-8-1EP_8x6mm_P1.27mm_EP3.4x4.3mm | IC603 |
| 1 | NTS0104GU12 | XQFN-12-1.7x2mm_P0.4mm | IC604 |
| 1 | NORA-B106 | NORA-B106 | M601 |
| 3 | PMZ550UNEYL | DFN-1006-3 | Q401, Q402, Q403 |
| 1 | PMZB320UPEYL | DFN-1006-3 | Q404 |
| 1 | Battery | PinHeader_1x02_P2.54mm_Vertical | X401 |
| 1 | Battery | 78171-0002 | X402 |
| 1 | Power | PinHeader_1x04_P2.54mm_Vertical | X403 |
| 1 | VSYS | PinHeader_1x04_P2.54mm_Vertical | X404 |
| 8 | Current | PinHeader_1x02_P2.54mm_Vertical | X501, X503, X505, X506, X507, X508, X602, X606 |
Show 37 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | I2S | PinHeader_1x06_P2.54mm_Vertical | X502 |
| 1 | I2C | PinHeader_1x04_P2.54mm_Vertical | X504 |
| 1 | Motor | 78171-0002 | X509 |
| 1 | Current | PinHeader_1x03_P2.54mm_Vertical | X510 |
| 1 | DEBUG | SHF-105-01-L-D-SM-TR | X601 |
| 1 | Device | USB_C_Receptacle_Amphenol_12401610E4-2A | X603 |
| 1 | UART | PinHeader_1x03_P2.54mm_Vertical | X604 |
| 1 | GPIO | PinHeader_1x06_P2.54mm_Vertical | X605 |
| 1 | IO Current | PinHeader_1x02_P2.54mm_Vertical | X607 |
| 1 | Display | ER-CON0.4-24P | X608 |
| 1 | Display | PinHeader_1x02_P2.54mm_Vertical | X609 |
| 1 | LED Current | PinHeader_1x02_P2.54mm_Vertical | X610 |
| 1 | SPK0641HT4H-1 | SPK0641HT4H-1 | MK501 |
| 1 | SW1 | WS-TASV-6x6 | S501 |
| 1 | SW2 | WS-TASV-6x6 | S502 |
| 1 | SW3 | WS-TASV-6x6 | S503 |
| 1 | SW4 | WS-TASV-6x6 | S504 |
| 1 | RESET | WS-TASV-6x6 | S601 |
| 1 | +3V0 | LED_0402_1005Metric | D401 |
| 1 | VSYS | LED_0402_1005Metric | D402 |
| 1 | +1V8 | LED_0402_1005Metric | D403 |
| 2 | 2u2 | L_0806_2016 | L401, L402 |
| 3 | 1u | C_0402_1005Metric | C401, C405, C601 |
| 13 | 100n | C_0402_1005Metric | C402, C501, C502, C503, C504, C507, C508, C509 +5 |
| 1 | 2u2 | C_0402_1005Metric | C403 |
| 4 | 10u | C_0402_1005Metric | C404, C406, C408, C506 |
| 3 | 10u | C_0603_1608Metric | C407, C409, C410 |
| 1 | 220n | C_0402_1005Metric | C505 |
| 4 | 100k | R_0402_1005Metric | R401, R402, R403, R408 |
| 3 | 560R | R_0402_1005Metric | R404, R405, R406 |
| 1 | 47k | R_0402_1005Metric | R407 |
| 8 | 0R | R_0805_2012Metric | R409, R410, R411, R412, R602, R603, R615, R616 |
| 2 | 1k8 | R_0402_1005Metric | R501, R502 |
| 1 | 200k | R_0402_1005Metric | R503 |
| 2 | 3k3 | R_0402_1005Metric | R504, R505 |
| 1 | 12k | R_0402_1005Metric | R601 |
| 1 | 100k | R_0805_2012Metric | R613 |
Watch-DevKit-HW design files
The KiCad project lives in the ZSWatch/Watch-DevKit-HW repository on GitHub; these links point at the commit this page was built from.
Watch-DevKit-HW: common questions
How big is the Watch-DevKit-HW PCB?
The Watch-DevKit-HW measures 100 × 70 mm, has 4 copper layers and is 1.582 mm thick.
How many components are on the Watch-DevKit-HW?
100 components, from 57 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 Watch-DevKit-HW design files?
From the ZSWatch/Watch-DevKit-HW 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 Watch-DevKit-HW design in my own project?
Yes, under the terms of its GPL-3.0 license, which ZSWatch chose for the repository.
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