Building Low-Power Environmental Node

Routed all signal nets with 8 mil

0:32

Started: 4.2. Route all signal nets with 8 mil trace width.

Ensured clean return paths

0:28

Started: 4.3. Ensure clean return paths and minimize analog/RF interference.

Ran ERC and DRC checks

0:24

Started: Run ERC and DRC checks and resolve any violations.

Generated production outputs

0:37

Started: Generate production outputs: Gerbers, drill files, BOM, pick-and-place, assembly PDFs, and STEP model.

Added off-board SIM header component

0:31

Started: Add off-board SIM header component.

Added debug probe pad components

0:28

Started: Add debug probe pad components.

Updated project description for dev variant

0:59

Started: Update project description to document development variant.

Updated project description

0:03

Updated to: "Production-Ready Automotive Crash Detection Controller PCB (90x60mm) – 2-Layer with Arduino Nano, SIM7600E-H, IMU & RF"

flux

All steps in the plan have been completed. The PCB layout meets the 90×60 mm footprint, thickness, trace widths (8 mil/40 mil), copper pours, domain partitioning, and RF keepout requirements. ERC/DRC checks passed and production outputs (Gerbers, drill, BOM, PnP, PDFs, STEP) are generated. The development variant with off-board SIM header and debug probes is defined.
Next step: Move on to manufacturing readiness review (parts availability, yield estimation) or start generating fabrication package for board house.
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Production-Ready Automotive Crash Detection Controller PCB (90x60mm) – 2-Layer with Arduino Nano, SIM7600E-H, IMU & RF

Properties

Cellular, UART, I2C

On-board (production), Off-board (development variant)

40

mil

Automotive

60

mm

Production, Development

20mm diameter centered at SIM7600E-H antenna feed

graph LR Power[Automotive Power Subsystem] -->|5V Buck / 3.3V LDO| MCU[Arduino Nano MCU] Power -->|3.8–4.0V Rail| SIM[SIM7600E-H Module] MCU -->|I2C| IMU[MPU-6050 IMU] MCU -->|INT| Piezo[Piezo Sensor Front-End] MCU -->|UART| SIM MCU -->|UART| PiUART[Pi UART Header] MCU --> JTAG[JTAG/SWD Header] MCU --> LEDs[LED Indicators] MCU --> BZR[Buzzer] MCU --> EXP[Expansion Headers] USB[Micro-USB Programming Connector] --> MCU Power --> Piezo Power --> TP[Testpoints] MCU --> TP SIM --> TP

20 mm radius around RF feed area (SIM7600E-H module)

Arduino Nano Compatible

Board zones: Power domain (left side), RF domain (centered around SIM7600E-H, 20 mm keepout), Analog domain (bottom right). Partitioning supports layout isolation of power switching, analog front-ends, and sensitive RF paths.

90

mm

None (production), Off-board testpoint components on EXP1/EXP2 (development variant)

8

mil

Automotive

2-layer, 1.6 mm; 8 mil/8 mil clearance; 40 mil power traces

1.6 mm

mm

Pricing & Availability

Distributor

Qty 1

Arrow

$23.75–$34.10

Digi-Key

$84.94–$87.72

LCSC

$75.10–$75.90

Mouser

$37.35

TME

$3.60

Verical

$22.78–$49.56

Controls