PCB Schematic + Layout Design

Title: PCB Schematic + Layout Design — Passive Grove Sensor Hub (M5Stick S3) — Gerbers + BOM + CPL for JLCPCB Assembly Function: Distributes I²C (SDA/SCL) and switchable 5V power to multiple Grove sensor ports. Fully passive — no logic ICs, no MCU. Communication handled by the M5Stick S3 via Arduino Wire library. Scope: PCB layout matching reference design (~80x60mm, silkscreen labels) Component selection with real, sourceable part numbers (LCSC preferred) Mix of THT (connectors, headers, switches) + SMT (fuse, LED, resistors) — correct footprints for automated assembly Deliverables: Gerber files (JLCPCB-ready) BOM with LCSC part numbers CPL (Pick-and-Place) file Source schematic + PCB project files Design in EasyEDA (preferred) or KiCad Important: Final goal is full PCBA at JLCPCB (Turnkey, SMT+THT) — not bare board. Please ensure all parts/footprints are assembly-compatible. Full spec + reference image sent after hire.