555 timer

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

Preview of 555 timer

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
4× Resistor (226 Ω, 32.2 kΩ, 6.97 kΩ)
1× Capacitor
2× LED
1× 555 Timer

Tags

IC Resistor Battery Capacitor 555 LED

About

By Chris Kiley
Saved October 27, 2025 · updated January 15, 2026
1,186 views
Page: dcaclab.com/circuits/86025-555-timer-2

Embed this circuit

<iframe src="https://dcaclab.com/experiments/86025-555-timer-2/iframe" width="560" height="410" frameborder="0"></iframe>

Cite: Kiley, C. (2025). 555 timer. DCACLab. https://dcaclab.com/circuits/86025-555-timer-2

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