Red LED Blinker Circuit Design

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I selected through-hole parts: a low-power DIP TLC555 timer, 5 mm red LED, 9V battery holder, and a through-hole slide switch used as on/off. Timing is set to about 1.06 Hz with 1 kΩ, 680 kΩ, and 1 µF.

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I added the schematic and created project files for the design notes and bring-up checklist.

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Implemented the 9V 555 LED blinker schematic with through-hole, hand-solderable parts: TLC555IP DIP timer, 9V battery holder, slide switch, red LED, timing parts, LED resistor, and required decoupling. It targets ~1.06 Hz, and the schematic review returned no open ERROR/WARNING issues.
Project files created:
Suggested next steps:
  1. Place the components on the PCB.
  2. Route the board.
  3. Generate a beginner-friendly BOM / assembly checklist.
Start PCB layout
Route the board
Create BOM checklist
Explain soldering choices
Improve battery life
BT1 + - S1 1
GND
BT1
S1 2 - U1 VDD
BT1 + - S1 1
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9V 555 LED Blinker

9V 555 LED Blinker thumbnail
Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable oscillator, on/off switch, and through-hole components.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$0.71–$1.36

Digi-Key

$2.46

LCSC

$5.74

Mouser

$3.73

TME

$1.21

Verical

$2.51–$2.90

Controls