2 layers28.4 × 40 mm
SmartwatchPCB
davedarko/SmartWatchPCB
work in progress, this is just setup to jump between computers n stuff.
53 parts6
2 layers28.4 × 40 mm
SmartwatchPCB
davedarko/SmartWatchPCB6work in progress, this is just setup to jump between computers n stuff.
- Size
- 28.4 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 71
- Nets
- 70
- Pads
- 247
- Tracks, vias
- 559, 109
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 21 Jul 2021
- Updated
- 16 Nov 2023
Overview
SmartwatchPCB is an open-source printed circuit board by davedarko, from the davedarko/SmartWatchPCB repository on GitHub. It is a 2-layer board of 28.4 × 40 mm with 71 parts on 70 nets, routed with 559 tracks and 109 vias.
It is built around the TFBS4711-TT1 and 1N4148WT. Its parts include 21 diodes, 8 resistors, 7 capacitors, 5 ICs and 3 connectors. It belongs with the SAM D and SAM boards of this library.
Main components
2README
README.mdSmartWatchPCB
work in progress, this is just setup to jump between computers n stuff.
I'm replacing the PCB of a cool watch from aliexpress
more on the project here https://hackaday.io/project/180832-new-pcb-for-calculator-watch
Parts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 1N4148WT | Diode_SMD:D_SOD-523 | D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +4 |
| 20 | SW_Push | SmartwatchPCB:button | SW_0, SW_1, SW_2, SW_3, SW_4, SW_5, SW_6, SW_7, SW_8, SW_9, SW_ADD1, SW_DIV1, SW_DOT1, SW_EQ1, SW_M1, SW_MUL1 +4 |
| 8 | R | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R6, R7, R8, R9 |
| 6 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP_GND1, TP_PIEZO_GND1, TP_PIEZO_SIGNAL1, TP_RST1, TP_VBAT1, TP_VLCD1 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C5, C6, C7 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | AP2112K-2.5 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x04_Male | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | Conn_01x04_Socket | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J4 |
| 1 | L | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | LCD | SmartwatchPCB:display_MOUNT | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Castellated | D1 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | SAML22G | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm | IC1 |
| 1 | TFBS4711 | SmartwatchPCB:TFBS4711 | IC2 |
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Questions
How big is the SmartwatchPCB PCB?
It measures 28.4 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SmartwatchPCB use?
71 parts, built around the TFBS4711-TT1 and 1N4148WT. 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 SmartwatchPCB KiCad files?
From the davedarko/SmartWatchPCB repository on GitHub, at the commit this page was made from: the board is KiCad Rev 1/SmartwatchPCB.kicad_pcb and its schematic KiCad Rev 1/SmartwatchPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SmartwatchPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask davedarko before reusing the design.