Marine Start Panel PCB Design

flux

0:00

Work completed
  • Bottom-center terminals updated:
    • Removed old 2-pos blocks J2–J5
    • Added new 4-pos blocks J2, J3, J4, J5 and locked them
  • Relay and driver/diode locks:
  • ESP32 decoupling added:
    • C3 (100 nF), C4 (4.7 µF) placed and locked
  • Front-end circuits integrated:
    • ADC dividers R2–R9, RC filters R10–R13 and C5–C8 added and locked
    • Tach op-amp U3, R14, C9 placed ≥ 20 mm from relays and locked
    • Light sensor D7, U4, R15, C10 added near top edge and locked
    • Front-end nets connected to J9/J10 and MCU pins, portals locked
  • SeaTalk interface added:
    • Opto-isolator U6 and level shifter U7 placed adjacent to J10 and locked
Tasks not done
Due to environment constraints, I could not reposition components or define the copper keep-out zone:
  • Reposition relays for tight top-right cluster ([K1]–[K5])
  • Slide drivers ([Q1]–[Q5]) and diodes ([D2]–[D6]) within 3–5 mm of coils
  • Relocate power stage parts ([U2], [D1], [F1], [R1], [C1], [C2]) within 20 mm of J1 and route high-current paths
  • Define and lock a 12 × 12 mm antenna no-copper zone around U1
Success criteria
  • ✅ Bottom-center zone: 4-pos terminals replaced and locked
  • ❌ Relay cluster & driver/diode repositioning: not repositioned
  • ❌ Power-stage relocation & routing: not relocated
  • ✅ ESP32 decoupling caps & bulk cap added; ❌ antenna keep-out zone: not defined
  • ✅ Right-edge front-end circuits, tach-op amp, light sensor, SeaTalk interface added and locked
  • ✅ All new placements respect locked anchors
Next step
Proceed to Schematic Review to verify connectivity, functional grouping, and update copper keep-out zones before finalizing PCB layout.
153 days
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