Watch-HW
About the Watch-HW PCB
Watch-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 41 × 37.5 mm, with 62 components from 38 distinct parts.
Other key parts include the NPM1300-QEXX, APDS-9306-065, BMI270, LIS2MDLTR and BMP581. By type, the board carries 26 capacitors, 12 ICs, 9 resistors, 6 crystals, 4 switches and 2 inductors.
It belongs with the wearables designs in this gallery.
From the project
The hardware repo for the ZSWatch mainboard.
. ├─ 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-HW
Watch-HW bill of materials (BOM)
62 components, 38 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NPM1300-QEXX nPM1300-QEXX | QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm | 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 |
| 1 | Battery | JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | X402 |
| 1 | Motor | 78171-0002 | X509 |
| 1 | Device | USB_C_Receptacle_Amphenol_12401610E4-2A | X603 |
| 1 | Display | ER-CON0.4-24P | X608 |
| 1 | MB1 | 101R014FB110 | X701 |
| 1 | MB1 MB2 | 101R014FB110 | X702 |
| 1 | Speaker | CMR-12062S-67 | LS801 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SPK0641HT4H-1 | SPK0641HT4H-1 | MK501 |
| 1 | SW1 | 43633303381_NoMountingPads | S501 |
| 1 | SW2 | 43633303381_NoMountingPads | S502 |
| 1 | SW3 | 43633303381_NoMountingPads | S503 |
| 1 | SW4 | 43633303381_NoMountingPads | S504 |
| 2 | 2U2 2u2 | L_0603_1608Metric | L401, L402 |
| 3 | 1u | C_0201_0603Metric | C401, C405, C601 |
| 13 | 100N 100n | C_0201_0603Metric | C402, C501, C502, C503, C504, C507, C508, C509 +5 |
| 1 | 2U2 2u2 | C_0402_1005Metric | C403 |
| 5 | 10U 10u | C_0402_1005Metric | C404, C406, C408, C506, C512 |
| 3 | 10U 10u | C_0603_1608Metric | C407, C409, C410 |
| 1 | 220N 220n | C_0201_0603Metric | C505 |
| 1 | 47K 47k | R_0201_0603Metric | R407 |
| 2 | 100K 100k | R_0201_0603Metric | R408, R613 |
| 2 | 1K8 1k8 | R_0201_0603Metric | R501, R502 |
| 2 | 3K3 3k3 | R_0201_0603Metric | R504, R505 |
| 1 | 200K 200k | R_0201_0603Metric | R506 |
| 1 | 12K 12k | R_0201_0603Metric | R601 |
Watch-HW design files
The KiCad project lives in the ZSWatch/Watch-HW repository on GitHub; these links point at the commit this page was built from.
Watch-HW: common questions
How big is the Watch-HW PCB?
The Watch-HW measures 41 × 37.5 mm, has 4 copper layers and is 0.982 mm thick.
How many components are on the Watch-HW?
62 components, from 38 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-HW design files?
From the ZSWatch/Watch-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-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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