Sensor Node Development Guide

rakanii

rakanii

Yes, أصلح USB D+/D- ونظّف الـdangling/floating copper ثم أعد DRC.

flux

تمام، سأركز الآن على تنظيف مسارات USB D+/D- والـfloating/dangling copper المتبقي، ثم أعيد DRC للتحقق.

flux

توقفت هنا لأن حسابك لا يملك ACUs متاحة حاليًا، لذلك لا أستطيع تشغيل أدوات التعديل أو DRC الآن.
ما تم إنجازه حتى الآن:
  • أُضيف مدخل 5V خارجي عالي التيار مع حماية PTC + Schottky + bulk capacitor.
  • تم فصل LED_5V عن 5V_PROTECTED الخاص بالمنطق/USB.
  • تم تحويل أغلب المقاومات والمكثفات العامة إلى 0805، مع استثناءات هندسية موثقة مثل L1 وC12.
  • تم عمل PCB layout وتوجيه تلقائي على 4 طبقات.
  • تم توثيق الحالة في ملف: Layout, DRC, and BOM Review.
المتبقي عند توفر ACUs:
  • تنظيف مسارات USB D+/D- يدويًا أو بتوجيه موجه.
  • حذف آثار dangling/floating copper المتبقية.
  • إصلاح overlapping copper قرب أحد مخارج الإشارات.
  • إعادة DRC حتى يصبح التصميم جاهزًا للتصنيع.
إرشاد يدوي
مناطق الفحص
Checklist DRC
مخاطر التصنيع

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Layout, DRC, and BOM Review — ESP32-S3 Multi-Port LED Controller
Status
Draft layout/routing review after adding external LED 5V input and converting small passives to 0805.
Changes Applied
  • Added external high-current 5V input path:
    • J10: 2-pin 5.0mm screw terminal, XY301V-A-5.0-2P, 15A connector rating.
    • F1: RGEF300 resettable PTC, 3A hold current.
    • D17: SSC54-E3/57T Schottky reverse-polarity protection.
    • C12: 1000uF bulk capacitor on LED_5V.
  • Separated output connector 5V pins from USB logic rail:
    • LED/output connector pin 1 now uses LED_5V from external input.
    • Logic/USB rail remains 5V_PROTECTED for level shifters and regulator input.
  • Converted generic small passives to 0805:
    • R1–R20: SMD_0805_2012Metric.
    • C1–C11: SMD_0805_2012Metric.
    • C12 remains radial because 1000uF is not practical in 0805.
    • L1 was changed to a larger 1212/3030-class inductor MPN because no adequate 0805 2.2uH high-current inductor was found.
  • GPIO mapping reviewed:
    • DATA1–DATA8: GPIO4, GPIO5, GPIO6, GPIO7, GPIO15, GPIO16, GPIO17, GPIO18.
    • Shared CLK: GPIO21.
    • USB remains on GPIO19/20.
    • BOOT remains on GPIO0.
BOM Manufacturing Review
All major non-generic active/connectors/protection parts have manufacturer part numbers. Generic passive MPN metadata was added for manufacturability review:
  • 33Ω 0805 resistors: Yageo RC0805FR-0733RL class.
  • 10kΩ 0805 resistors: VO 0805 ±1% 10K / LCSC C2889436 class.
  • 20kΩ/300kΩ 0805 resistors: Yageo RC0805FR series class.
  • 100nF 0805 capacitors: Murata GRM219R71C104JA01D class.
  • 1uF/10uF/22uF capacitors: Samsung/Murata 0805 MLCC classes.
  • 1000uF bulk capacitor: Nichicon UHE1A102MPD class.
  • 2.2uH inductor: Würth 74438335022 class.
PCB Layout
  • Board size: 120mm x 100mm, 4-layer stackup.
  • ESP32-S3 placed at top edge with antenna facing outward.
  • USB-C placed at accessible left edge.
  • External LED power input placed at accessible bottom/edge area.
  • Output connectors J2–J9 placed at the board edge in channel order.
  • TVS diodes and series resistors are placed near output connector groups.
DRC / Routing Status
Two auto-route passes were run, with dangling traces cleaned between passes. The board is mostly routed, but the final DRC is not fully clean yet.
Remaining open layout issues:
  • 3 remaining airwire errors, all around USB D+/D- / USB connector routing.
  • 10 dangling-trace warnings, mostly stale/partial USB routing segments.
  • 2 floating-copper errors from leftover trace islands.
  • 2 overlapping-copper errors near an output connector signal pad.
Interpretation
The schematic and BOM are now suitable for manufacturing review, but the PCB layout is not ready for fabrication until the remaining DRC items are fixed manually or with a focused routing/cleanup pass. Because two full auto-route passes were already used, further automatic full-board routing is unlikely to be efficient; the next fix should be targeted USB routing cleanup and connector-area trace repair.
  1. Manually or with a targeted routing tool, clean and reroute USB_DN/USB_DP between J1 and U1.
  2. Delete remaining floating/dangling USB trace islands.
  3. Inspect and reroute the overlapping copper near the affected output connector pin.
  4. Re-run DRC until airwires, dangling traces, floating copper, and overlaps are clean.
  5. Verify LED_5V high-current routing width/copper area before fabrication.

  • Status

  • Changes Applied

  • BOM Manufacturing Review

  • PCB Layout

  • DRC / Routing Status

  • Interpretation

  • Recommended Next Actions

Documents

  • Project Specification — ESP32-S3 Multi-Port LED Controller

  • Firmware Starter — ESP32-S3 Multi-Port LED Controller

  • Board Bring-Up Plan — ESP32-S3 Multi-Port LED Controller

  • Regulatory Notes — ESP32-S3 Multi-Port LED Controller

  • Layout, DRC, and BOM Review — ESP32-S3 Multi-Port LED Controller

Assets

Assets are files uploaded to this project which can be used in various ways.

ESP32-S3 Multi-Port LED Controller thumbnail
ESP32-S3 controller board with independent DATA outputs and shared CLK for multi-port LED/control outputs, powered and programmed over USB-C.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$6.06–$7.65

Digi-Key

$5.90–$6.46

HQonline

$2.27

LCSC

$15.75

Mouser

$20.50

TME

$3.56

Verical

$3.07–$106.50

Controls