PRESSURE CARRIER / MANUFACTURER-SPECIFIED ALTIUM PROJECT

OPEN
Extract the project ZIP and open pressure-carrier-altium.PrjPcb in Altium Designer.
Keep SchDoc, PcbDoc, SCHLIB and PcbLib together. Both local libraries are included.
The paired EAGLE source files are secondary exports; the native Altium files
contain the tidied schematic and manufacturer parameters.

SPECIFIED PARTS
U1: Seeed Studio 113991054 (XIAO ESP32-C3). Official through-hole footprint,
rotated 180 degrees to preserve pin positions. 1.02mm holes / 1.6mm copper pads.
Removable U1 mounting: two Samtec SSQ-107-03-G-S-LL 1x7 female sockets.
The old DIP-14 geometry proxy has been replaced with the module outline.
J1: Samtec TSW-104-07-T-S male 1x4 2.54mm header.
J2: Samtec SSQ-104-03-G-S-LL female 1x4 2.54mm locking-lead socket.
Both headers use manufacturer-recommended 1.02mm holes.
R1/R2: YAGEO RT0603BRD0710KL, 10k, 0.1%, 0603.
R3/R4: YAGEO AC0603FR-074K7L, 4.7k, 1%, 0603; optional / DNP.
C1/C2/C3: TDK C1608X7R1H104K080AA, 100nF, 10%, X7R, 50V, 0603.
TP1-TP5: bare plated PCB test pads, 1.2mm hole / 1.8mm copper;
no purchased component is required.
See MANUFACTURER-BOM.csv for sources and assembly notes.

CONNECTORS
J1 pins 1 +5V / 2 GND / 3 SENSOR_OUT / 4 intentionally unused.
J2 pins 1 GND / 2 3V3 / 3 SCL / 4 SDA.
These are specified adapter headers. The reference electrical wiring is recorded;
exact sensor MPN, Molex series and physical mating remain unverified.

CHECKS
15 schematic objects / 41 pins / 7 nets / 32 connected pins / 9 unused pins.
Component IDs, pin/net mappings and copper track centerlines are preserved.
The geometry check reports minimum copper clearance of about 0.320mm.
Altium project validation completed with no errors on 2026-10-15.
Full PCB DRC is outstanding. Input protection,
power budget and mechanical integration remain review items.

SOURCES
Seeed official library and downloaded references are under manufacturer-sources.
Original JLCEDA/EasyEDA footprint source snapshots and copyright notices remain
under footprint-sources and in the source-file descriptions.
https://lceda.cn/ https://easyeda.com/

REFERENCE BUILD
OLED: ANAVI 0.96-inch SSD1306, GND/VCC/SCL/SDA. SCL=D5/GPIO7, SDA=D4/GPIO6.
Sensor: Spectronik MGPR manual chapter 4 transducer; individual sensor part number not stated.
Brown=5V, blue=GND, white=signal. Exact photographed Molex series remains unidentified.
The specified J1 is a 2.54mm adapter header; physical mating is not yet verified.
See REFERENCE-CHECK.json for sources and comparison.
