A Blinking LED

flux

Connectivity checks passed; I found only schematic readability warnings, so I’m cleaning those up now without changing the circuit.

flux

Built the 9V LED Blinker schematic: a through-hole NE555 astable blinker powered by a 9V battery through an SPST on/off switch, driving a red LED at about 1.05 Hz with ~5.8 mA LED current. I also cleaned up the schematic geometry and verified there are no open ERC/DRC warnings or errors in the checked categories.
Open items:
  • PCB layout has not been created yet.
  • Battery life will be modest with a bipolar NE555; a CMOS 555 would improve runtime if that matters.
Suggested next steps:
  1. Create the PCB layout with through-hole footprints.
  2. Add mounting holes and set a board size.
  3. Route the PCB and run final DRC.
  4. Generate Gerbers/BOM for fabrication.
Layout and export
Create PCB layout
Add mounting holes
Route and check
Improve battery life

Demo Complete

The demo is finished. It didn't use any ACUs. You can now continue working with this project like normal.

U1
C3
Capacitance
100nF
C4
Capacitance
10µF
C2
Capacitance
10nF
C1
Capacitance
1µF
J1
R3
Resistance
1kΩ
R1
Resistance
1kΩ
R2
Resistance
680kΩ
SW1
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9V LED Blinker

9V LED Blinker thumbnail
Hand-solderable 9V battery-powered red LED blinker using a 555 timer in astable mode, an on/off switch, and through-hole support components for approximately one blink per second.

Properties

9

V

Timer

Battery

LED

Pricing & Availability

Distributor

Qty 1

Arrow

$2.34–$3.90

Digi-Key

$4.14

HQonline

$0.33

LCSC

$4.66

Mouser

$5.00

TME

$0.48

Verical

$2.41–$5.08

Controls