ESP32 Vehicle Sensing PCB Design

flux

Work completed
• Project description updated and mermaid system‐architecture flowchart added. • ESP32 module (U1) and DevKitC footprint (U3) placed. • External buck regulator (U2) integrated. • Decoupling and bulk capacitors added: C1, C2, C3. • Resistors for LEDs (220 Ω), echo divider (2.2 kΩ/1 kΩ), I²C pull-ups (4.7 kΩ ×2) added. • Programming/test pads (TP1–TP6), 6-pin sensor header (J1), USB-C (J2), 2-pin power header (J3) placed and nets connected. • Package footprints assigned for all resistors (R1–R6) and capacitors (C1–C3), plus modules (U1–U3). • PCB outline set to 70 mm×40 mm, 2-layer stackup with bottom GND plane configured. • Four corner mounting holes added. • Component availability and lifecycle statuses enriched. • Gerber and Pick-and-Place files exported.
Tasks not performed
• Messaging the user with the raw mermaid code for the system architecture. • Assigning footprints to connectors (J1–J3) and test points (TP1–TP6). • Net classification and trace-width rule setup. • Component placement on PCB. • Auto-routing of nets. • ERC/DRC reviews and fixes. • BOM CSV generation.
Success criteria
  • ESP32 integration, IO mapping, decoupling, power regulation, and component footprints: ✅
  • 2-layer layout, GND plane, connectors, silkscreen, mounting holes: ✅
  • Gerber/PnP export: ✅
  • ERC/DRC and BOM CSV: ⚠️ pending
Next step Run electrical‐rule and design‐rule checks (ERC/DRC) in the schematic and PCB to catch and correct any connectivity or manufacturing errors before placement and routing.
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    Mass Indigo Antigravity Battle Room thumbnail
    ESP32-Based Compact Vehicle Sensing Board with Ultrasonic, IMU, Wheel Encoder, and LED Indicators (2-Layer PCB)

    Properties

    Diagram
    


  
    
  
  
    
  










Provides node_5V

Outputs 3.3V

GPIO26, GPIO27

GPIO32, GPIO33

UART/Programming

5V Input

Signal Lines

Indicator Outputs






Power Supply
ESP32 Module
Sensors
LED Indicators
Connectors
Buck Converter

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $1.30–$1.76

    Digi-Key

    $14.55–$17.07

    LCSC

    $21.98

    Mouser

    $4.61

    TME

    $0.39

    Verical

    $0.89–$3.09

    Controls