LED Blinker Circuit Design

Thought for 1 min 22 sec

Manufacturing files generated successfully:

The DXF uses a MILLING_CUTOUT layer and shows the 1.5mm non-plated full-height isolation slot centered at x=85mm on the 200×140mm board. Specify 2-layer FR4, ENIG in the fab order notes.

Review package and DRC

Review Gerbers

Check DXF alignment

Run final reports

Regenerate after manual routes

Files

Schematic

Layout

Preview

U_MCU

U_3V3

J_SIM

U_5V

J_S2

U_LTE

J_S1

U_4V

Technical Construction File — GLECS V4 Logic Controller

Status

Draft — schematic stage.

Wireless Technology Summary

Table

Module	Technology	Frequency	Antenna
U_LTE A7672SA	LTE cellular module	cellular bands per module variant	J_ANT U.FL / IPEX external antenna

Required Documentation

Product description and block-level architecture captured in Project Specification.
Wireless module and antenna interface identified in schematic.
Draft bring-up and firmware notes created.
Final module certification evidence / FCC ID / CE RED evidence from exact A7672SA module documentation.
Final PCB layout with antenna keepout and RF routing evidence.
EMC/RF test reports from accredited lab.

RF Design Notes

Keep J_ANT and LTE_RF_ANT routing short and controlled; target 50Ω RF trace in layout.
Maintain copper keepout near the antenna area as specified.
Do not route noisy switching-regulator or relay traces through the antenna zone.

Safety / Isolation Notes

Relay control crosses the logic-to-relay boundary only through U_OPTO1.
GND_STAR and GND_RELAY must remain separate in layout.
Add/maintain the 1.5mm isolation slot at x=85mm during PCB layout.

Open Items

Verify exact A7672SA regulatory certifications and allowed antenna gain before manufacturing.
Revisit after PCB layout to document RF trace geometry and keepout compliance.

Status
Wireless Technology Summary
Required Documentation
RF Design Notes
Safety / Isolation Notes
Open Items