LED Blinker Circuit Design


Done — here’s the updated PCB layout PDF:
Note: the PCB layout still has unrouted airwires, so this PDF reflects the current layout state, not a finished routed PCB.
Route the remaining airwires and then regenerate the PCB layout PDF.
I’ll route the remaining PCB airwires, verify the routing, then regenerate the PCB layout PDF.
Routed the remaining airwires successfully — 58 routing nodes were added, and the follow-up DRC check shows no open airwire, overlap, dangling trace, missing-footprint, or invalid-layer issues.
Generate a STEP model for mechanical review.
I’ll generate the STEP model from the current routed PCB layout for mechanical review.
Done — the routed PCB passed the key pre-export checks, and I generated the STEP model for mechanical review:

3D Model (STEP)


Failed to load 3D model

Generate Gerbers
Export BOM CSV
Final DRC check
Assembly drawing

U1
C3
Capacitance
100nF
S1
C2
Capacitance
10nF
R2
Resistance
680kΩ
J1
R1
Resistance
1kΩ
C4
Capacitance
10uF
R3
Resistance
680Ω
C1
Capacitance
1uF
D1

9V 555 LED Blinker

9V 555 LED Blinker thumbnail