LED Blinker Circuit Design

Thought for 2 mins 38 sec

Updated exports are ready:

give me gerber file

Thought for 5 sec

Here is the latest Gerber ZIP export:

show me where is 4g module

J_4G

Thought for 7 sec

The original A7672S 4G module footprint was removed from the design and replaced with a 4-pin external 4G header.

You should look for:

So there is no large 4G module on the PCB now — the board provides J_4G so you can connect an external 4G module by wires/header.

Highlight J_4G

Export 4G wiring

Verify 4G nets

Add silkscreen labels

Run final review

Files

Schematic

Layout

3D View

Zone 2 Power Supply Section Notes

Implemented Rails

VCC_12V_RELAY: direct barrel-jack center-positive rail before F1; intended to route to Zone 1 only.
VCC_12V_INPUT: fused/protected 12 V input after F1 feeding AMS1117-5.0.
VCC_5V: AMS1117-5.0 output.
VCC_4V_LTE: LMR33630 buck output set by R_FB1=100kΩ and R_FB2=51.1kΩ.
GND_STAR: single Zone 2 ground net.

Protection and Input

J_PWR: DC-005 5.5 mm / 2.1 mm barrel jack, center positive assumed on pin 4, sleeve on pin 2, switched contact pin 3 marked no-connect.
F1: closest available library match is Bel 0ZRM0125FF1A, 1.25 A hold resettable PTC, used at the requested 1 A polyfuse position.
D_TVS: P6KE15A from input positive to GND_STAR.

Regulator Notes

AMS1117-5.0 from 12 V to 5 V is thermally sensitive: dissipation is (12V - 5V) × I_5V. Keep 5 V load modest or replace with a buck regulator for higher current.
LMR33630 requires support capacitors beyond the user list: C_BOOT=100nF between BOOT and SW, and C_VCC=1uF from VCC to GND_STAR. These were added from the datasheet because the regulator will not operate correctly without them.
LMR33630 PG pin is unused and marked no-connect.

Layout Intent

Place the AMS1117 GND pin at the physical star-ground marker already placed on PCB silkscreen in Zone 2.
Keep VCC_12V_RELAY away from the 5 V / LTE regulator section and route it only toward Zone 1 without crossing the isolation slot.
Keep LMR33630 SW loop compact: U_4V SW → L1 → output caps → PGND/EP.