555 Mono-stable triggering on Positive Pulse

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04:50:53

Demo Showing how to trigger a 555 with a positive pulse. Normally they are triggered when Pin 2 gets a negative pulse.
Use push button to trigger the Left hand one in the normal manner. The output from this is a long positive pulse. This will trigger the second 555, of much shorter duration. The second one will not trigger again until the first one has timed out.

published 8 years ago

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