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Reference schematic

Spool Sentry USB/SELV preliminary carrier

rwrife-spool-sentry-hardware-spool-sentry-schematic

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rwrife-spool-sentry-hardware-spool-sentry-schematic

Take the project archive: a schematic is a root sheet plus every sub-sheet beside it, and the root alone opens with its hierarchy missing. The archive is zstd-compressed (tar.zst).

1Sheets
42Placed parts
25Net labels
KiCad 9File format

Bill of materials

42 distinct parts

40 resolve to something in the catalog — click through to the component.

RefValueSymbolQty
C14.7uF 10V X5RDevice:C
C10100nF 50V X7RDevice:C
C111uF 16V X7RDevice:C
C2100nF 50V X7RDevice:C
C310uF 10V X5RDevice:C
C4100nF 50V X7RDevice:C
C51uF 16V X7RDevice:C
C61uF 16V X7RDevice:C
C7100nF 50V X7RDevice:C
C8100nF 50V X7RDevice:C
C9330pF 50V C0GDevice:C
D1SMF5.0ADevice:D_TVS
D2B140-13-FDevice:D_Schottky
D3RGB STATUSLED:ASMT-YTC2-0AA02
F1500mA holdDevice:Polyfuse
J1USB-C POWER ONLYConnector:USB_C_Receptacle_USB2.0_16P
J2LOAD CELL E+/E-/S+/S-Connector_Generic:Conn_01x04
J3UART DEBUG 3V3Connector_Generic:Conn_01x04
R15.1k 1%Device:R
R10220R 1%Device:R
R25.1k 1%Device:R
R347R 1%Device:R
R447R 1%Device:R
R54.7k 1%Device:R
R64.7k 1%Device:R
R710k 1%Device:R
R8220R 1%Device:R
R9220R 1%Device:R
SW1TARE/CAL/RECOVERYSwitch:SW_Push
TP1VBUSConnector:TestPoint
TP10VBGConnector:TestPoint
TP2+5V_XIAOConnector:TestPoint
TP3+3V3Connector:TestPoint
TP4GNDConnector:TestPoint
TP5AVDD_3V0Connector:TestPoint
TP6I2C_SDAConnector:TestPoint
TP7I2C_SCLConnector:TestPoint
TP8AIN+Connector:TestPoint
TP9AIN-Connector:TestPoint
U1Seeed XIAO ESP32-C3spool-sentry:XIAO ESP32C3
Show the other 2
U2NAU7802SGIspool-sentry:NAU7802SGI
U3SHT40-N-NFConnector_Generic:Conn_01x04

Provenance

Commit
e8a3f7fd7ee5dcf99dade3c54a6d9f3fb1f54c13
Licence
MIT

How it is used

Trace's agent reads this design as context — what parts a board like this carries, how they are grouped across sheets, what a plausible layer stack and board size look like for the job. It is not copied. The licence above is permissive, and it, the repository and the commit are recorded so the origin of anything derived from it is always answerable.