seveibar/nrf-smart-watch

This code defines a detailed 3D PCB layout with schematic components, connectors, passive components, and RF antenna elements for a compact nRF52810-based smartwatch, including precise placement, copper pours, keepouts, and annotations.

Version: 0.1.1
License: unset
Stars: 0

BOM.csv

Reference,Quantity,Value / part,Footprint,Manufacturer,JLCPCB,Placement,Notes
U1,1,NRF52810-QFAA-R,QFN48 6x6 mm,Nordic Semiconductor,C141828,Top,nRF52810 BLE SoC
DISP1,1,ER-OLED0.96-1.3W,26.70 x 19.26 x 1.45 mm 30-pin top-contact FPC OLED,EastRising,,Off-board,White 128x64 SSD1306 panel; bare FPC without pin header; folds over PCB
J1,1,ER-CON30HT-1,30-pin 0.5 mm top-contact FPC connector,EastRising,,Top,Matching connector for .3W display flex
J2,1,TYPE-C-31-M-12,16-pin USB-C receptacle,HRO,C165948,Top,Power only; USB data and SBU pins unconnected
J3,1,SM02B-GHS-TB,2-pin JST-GH 1.25 mm,JST,C189893,Top,Protected 1S LiPo input; pin 1 BAT+ and pin 2 GND
J4,1,SM05B-SRSS-TB(LF)(SN),5-pin JST-SH 1.0 mm side-entry SMD,JST,C136657,Top,SWD programming; pin 1 RESET; pin 2 SWCLK; pin 3 SWDIO; pin 4 VREF; pin 5 GND
U2,1,MCP73831T-2ACI/OT,SOT-23-5,Microchip,C424093,Top,Single-cell LiPo charger; approximately 100 mA
U3,1,MCP1700T-3302E/TT,SOT-23-3,Microchip,C39051,Top,3.3 V low-quiescent-current LDO
D_USB D_BAT,2,BAT54WS,SOD-323,Generic,C124205,Top,Schottky USB/battery power OR-ing
R_CC1 R_CC2,2,5.1 kohm,0402,Generic,C25905,Top,USB-C CC sink pull-downs
R_CHG_PROG,1,10 kohm,0402,Generic,C25744,Top,MCP73831 charge-current programming resistor
C21 C22,2,4.7 uF,0603,Generic,C19666,Top,Charger input and battery decoupling
C23 C24,2,1 uF,0603,Generic,C15849,Top,LDO input and output decoupling
SW_UP SW_SELECT,2,Normally-open side tactile switch,Generic 3.5 x 2.8 mm side-actuated SMD,Generic,,Top,Hand-soldered; active-low with MCU internal pull-ups
ANT1,1,RFANT3216120A5T,3216 chip antenna,Walsin,C127629,Top,2.4 GHz antenna; pin 1 feed; pin 2 NC
X1,1,X201632MKB4SI,2016-4P,YXC,C718072,Top,32 MHz CL 8 pF +/-10 ppm
C1 C2,2,12 pF,0402,Generic,C1547,Top,C0G/NP0 HFXO load capacitors
C4 C5,2,100 nF,0402,Generic,C1525,Top,X7R MCU decoupling
C7,1,100 pF / GRM0335C1H101FA01D,0201,Murata,C384957,Top,C0G/NP0 50 V 1% DEC2 capacitor
C8,1,100 nF / TCC0201X5R104K100ZT,0201,CCTC,C5142565,Top,X5R 10 V 10% DEC3 capacitor
C9,1,4.7 uF,0603,Generic,C19666,Top,X5R/X7R rail bulk capacitor
C10,1,1 uF,0603,Generic,C15849,Top,X5R/X7R DEC4 capacitor
C15 C16,2,1 uF,0603,Generic,C15849,Top,X5R/X7R OLED charge-pump flying capacitors
C17 C18,2,1 uF,0603,Generic,C15849,Top,X5R/X7R OLED VBAT and VDD decoupling
C19,1,2.2 uF,0603,Generic,C23630,Top,X5R/X7R OLED VCOMH capacitor
C20,1,4.7 uF,0603,Generic,C19666,Top,X5R/X7R OLED VCC charge-pump capacitor
R_I2C_SDA R_I2C_SCL,2,4.7 kohm,0402,Generic,C25900,Top,I2C pull-ups to V3V3
R_OLED_RESET,1,10 kohm,0402,Generic,C25744,Top,OLED reset pull-up to V3V3
R_OLED_IREF,1,390 kohm,0402,Generic,C25782,Top,SSD1306 segment-current reference resistor
L1,1,3.9 nH,0402,Generic,,Top,High-Q Nordic RF matching inductor
C3,1,0.8 pF,0402,Generic,C88902,Top,C0G/NP0 Nordic RF matching capacitor
L2,1,6.8 nH,0402,Generic,,Top,High-Q antenna-series starting value; tune in product
C14,1,0.5 pF placeholder,0402,Generic,,Top,DNP post-match antenna tuning position

BOM.csv

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