Lab

555 timer - Astable Mode

An interactive 555 timer, LED, resistor and capacitor circuit built in the DCACLab online simulator by Samir Sabri.

Preview of 555 timer - Astable Mode
Open in the lab Embed The simulation runs as a demo that pauses after two minutes; open it in the lab to keep going.

What's inside

  • 1× Battery
  • 3× Resistor (4.8 kΩ, 1 kΩ)
  • 2× Capacitor
  • 1× LED
  • 1× 555 Timer

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About

By Samir Sabri
Saved July 27, 2024 · updated January 15, 2026
18,445 views
Page: dcaclab.com/circuits/75677-555-timer-astable-mode

Embed this circuit

<iframe src="https://dcaclab.com/experiments/75677-555-timer-astable-mode/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Sabri, S. (2024). 555 timer - Astable Mode. DCACLab. https://dcaclab.com/circuits/75677-555-timer-astable-mode

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