

BLE Watch for HRM
- Size
- 35 × 34.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 87
- Pads
- 335
- Tracks, vias
- 1,210, 187
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 31 Jan 2016
- Updated
- 31 Jan 2016
Overview
Watch is an open-source printed circuit board by kuggenhoffen, from the kuggenhoffen/ble_watch_pcb repository on GitHub. It is a 2-layer board of 35 × 34.5 mm with 85 parts on 87 nets, routed with 1,210 tracks and 187 vias.
It is built around the FT230XQ-R, 74AHC1G14GV and MMBD4148SE, with the TPS61093DSK, 2450AT42B100E and MF-FSMF050X-2 among its other parts. Its parts include 34 capacitors, 14 resistors, 8 ICs, 4 switches and 4 inductors. It belongs with the wearables boards and the nRF52 and nRF5x boards of this library.
Main components
6FT230XQ-R
QFN-16-EP(4x4)-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART QFN-16-EP(4x4) USB Converters ROHSFTDIUSB Converters74AHC1G14GV
SOT-23-5-40℃~+125℃ 1 1 1.2V~2.2V、1.75V~3.15V、2.15V~3.85V 16.3ns@3.3V,15pF 2V~5.5V 40uA 74AHC 8mA 8mA 900mV~1.9V、1.35V~2.75V、1.65V~3.35V SOT-23-5 Logic Gates ROHSTECH PUBLICLogic GatesMMBD4148SE
SOT-231 Pair Series Connection 100V 1V@10mA 200mA 350mW 4ns 5uA@75V SOT-23 Switching Diodes ROHSGuangdong HottechSwitching DiodesTPS61093DSK
UncategorisedTexas Instruments2450AT42B100E
--40℃~+85℃ 0dBi 100MHz 2.4GHz 2W 2mm 2mm 50Ω 5mm Patch Antenna - Antennas ROHSJohanson DielectricsAntennasMF-FSMF050X-2
0603-40℃~+85℃ 0.8mm 1.6mm 100mΩ 1A 40A 500mA 500mW 6V 800mΩ 0603 Resettable Fuses ROHSBournsResettable Fuses
README
README.mdble_watch_pcb
BLE Watch for HRM
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 0.1u | SMD_Packages:SMD-0603 | C10, C11, C12, C18, C19, C22, C23, C25, C26, C27, C29, C32, C33 |
| 13 | TST | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP15 |
| 4 | 12p | SMD_Packages:SMD-0603 | C1, C2, C3, C4 |
| 4 | 1u | SMD_Packages:SMD-0603 | C15, C21, C31, C35 |
| 4 | SW_PUSH | Omat:SKTDLDE010 | SW1, SW2, SW3, SW4 |
| 2 | 0 | SMD_Packages:SMD-0603 | R4, R7 |
| 2 | 10u | SMD_Packages:SMD-0603 | C16, C17 |
| 2 | 4.7u | SMD_Packages:SMD-0603 | C30, C36 |
| 1 | 0.01u | SMD_Packages:SMD-0603 | C20 |
| 1 | 0.022u | SMD_Packages:SMD-0603 | C14 |
| 1 | 0.047u | SMD_Packages:SMD-0603 | C9 |
| 1 | 1.5p | SMD_Packages:SMD-0402 | C13 |
| 1 | 1000p | SMD_Packages:SMD-0603 | C7 |
| 1 | 10M | SMD_Packages:SMD-0603 | R1 |
| 1 | 10k | SMD_Packages:SMD-0603 | R14 |
| 1 | 10n | SMD_Packages:SMD-0402 | L2 |
| 1 | 10uH | Omat:4012-Metric-Handsolder | L4 |
| 1 | 160k | SMD_Packages:SMD-0603 | R11 |
| 1 | 16MHz | Omat:CRYSTAL_SMD_2520_4PADS | X1 |
| 1 | 1K | SMD_Packages:SMD-0603 | R9 |
| 1 | 1p | SMD_Packages:SMD-0402 | C8 |
| 1 | 2.2M | SMD_Packages:SMD-0603 | R2 |
| 1 | 2.2p | SMD_Packages:SMD-0402 | C6 |
| 1 | 200k | SMD_Packages:SMD-0603 | R12 |
| 1 | 2200p | SMD_Packages:SMD-0402 | C5 |
| 1 | 2200p | SMD_Packages:SMD-0603 | C24 |
| 1 | 240k | SMD_Packages:SMD-0603 | R13 |
| 1 | 2450AT42B100 | ANTENNA_2.4GHz_SMD_2450AT42B100 | ANT1 |
| 1 | 3.3n | SMD_Packages:SMD-0402 | L3 |
| 1 | 32.768kHz | Omat:FC-135_SMD_CRYSTAL | X2 |
| 1 | 3k | SMD_Packages:SMD-0603 | R5 |
| 1 | 4.7n | SMD_Packages:SMD-0402 | L1 |
| 1 | 500k | SMD_Packages:SMD-0603 | R10 |
| 1 | 50R | SMD_Packages:SMD-0603 | R3 |
| 1 | 560K | SMD_Packages:SMD-0603 | R15 |
| 1 | 6k25 | SMD_Packages:SMD-0603 | R6 |
| 1 | 74AHC1G14 | SMD_Packages:SOT-353 | U4 |
| 1 | BATTERY | SMD_Packages:SMD-1210 | -BAT+ |
| 1 | CONN_6 | Omat:TC2030-MCP-NL | P1 |
| 1 | ER-OLED015-1 | ER-OLED-CON30-BOTTOM-CONTACT | U2 |
| 1 | FT230XQ | Housings_QFN_DFN:QFN-16-1EP_4x4mm_Pitch0.65mm | U6 |
| 1 | LED | LEDs:LED-0603 | D1 |
| 1 | LTC4063 | Housings_DFN_QFN:DFN-10-1EP_3x3mm_Pitch0.5mm | U5 |
| 1 | MF-FSMF050X-2 | SMD_Packages:SMD-0603 | F1 |
| 1 | MMBD4148SE | SMD_Packages:SOT-23 | U8 |
| 1 | S25FL1-K | SMD_Packages:SOIC-8-W | U3 |
| 1 | TPS61093 | Omat:SON-10-1EP_2.6x2.6mm_Pitch0.5mm | U7 |
| 1 | USB-MICRO-B | Omat:USB_MICRO_B_FEMALE_MIDMOUNT | CON1 |
| 1 | nrf51822 | Housings_QFN_DFN:UQFN-48-1EP_6x6mm_Pitch0.4mm | U1 |
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Questions
How big is the Watch PCB?
It measures 35 × 34.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Watch use?
85 parts, built around the FT230XQ-R, 74AHC1G14GV, MMBD4148SE and TPS61093DSK. 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 Watch KiCad files?
From the kuggenhoffen/ble_watch_pcb repository on GitHub, at the commit this page was made from: the board is watch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Watch design in my own project?
Its repository states no licence, so its author keeps all rights: ask kuggenhoffen before reusing the design.