PCB Design for Industrial Machine Retrofit

hassan75

hassan75

The I2C system (MPU6050, OLED, and ESP32 connections) is already correctly implemented and should NOT be modified.
Focus only on completing the remaining schematic and PCB cleanup tasks to reach full manufacturing readiness.
REMAINING CRITICAL TASKS:
DRV8825 FINAL FIX:
  • Resolve any unresolved RESET and SLEEP pin connections:
    • Ensure RESET and SLEEP are tied together for each driver
    • Ensure they are pulled up to 3.3V using a 10kΩ resistor
    • Eliminate any floating or unconnected control pins
POWER INTEGRITY VERIFICATION:
  • Verify all power nets:
    • 12V input rail
    • 5V rail from buck converter
    • 3.3V rail for logic
  • Ensure all required capacitors are properly placed:
    • Bulk capacitors (≥100µF) near motor drivers
    • Input capacitor (≥220µF)
    • 0.1µF decoupling capacitors near every IC
  • Ensure proper return paths and no broken ground connections
MOTOR POWER COMPLETION:
  • Confirm VMOT connections for both DRV8825 drivers are properly routed
  • Ensure high-current paths are continuous and correctly connected
  • Verify motor connectors are fully wired with no missing nets
REMOVE ALL AIRWIRES:
  • Identify and complete ALL remaining unrouted connections
  • Ensure there are zero airwires in the design
ELIMINATE FLOATING PINS:
  • Ensure no pins are left unconnected unless explicitly intended
  • Add pull-up or pull-down resistors where required
PCB LAYOUT CLEANUP:
  • Optimize component placement to reduce routing complexity
  • Group functional blocks:
    • Power section
    • Motor drivers
    • ESP32 logic
    • Sensors
  • Ensure proper separation between:
    • High-current motor paths
    • Sensitive signal lines
ROUTING IMPROVEMENTS:
  • Use wide traces for motor current paths
  • Keep I2C and signal traces short and clean
  • Avoid routing motor or switching lines under ESP32 or MPU6050
  • Ensure proper ground plane continuity
FINAL VALIDATION:
  • Pass ERC with no critical errors
  • Pass DRC with no violations
  • Ensure design is fully connected, stable, and ready for manufacturing
GOAL: Finalize the PCB into a clean, complete, and reliable industrial-grade design with no unresolved connections or layout issues.
34 days

flux

0:44

Considering user requests.

Thinking deeply about your request.

Creating a high-level execution plan.

Planning a high-level execution strategy.

Working on your request.

Creating an execution plan.

Your goal is to finish schematic and PCB cleanup without touching the already-correct I2C subsystem.
  • I updated the Plan and it is ready to execute.
  • It covers:
    1. Final DRV8825 RESET/SLEEP and VMOT cleanup
    2. 12 V / 5 V / 3.3 V power-integrity verification
    3. Clearing floating pins and unrouted nets
    4. Enforcing 4-layer layout cleanup and ERC/DRC closure
Click Start on the plan bar to run it.
Skip I2C edits
Review remaining issues
Check airwires only
Verify power rails
34 days
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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Net Portal
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  • Power Net Portal
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  • Generic Resistor
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  • Generic Capacitor
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  • Generic Inductor
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