Timer 555 bistable

Turning the timer into a flip-flop

bistable flip-flop timer

Sophie Seewald
English
Advanced

In this experiment we use the timer 555-brick as a flip-flop to control the output signal. The signal remains active until another input is activated. The right button, underneath the LED-brick is used to light up the red LED. If the contact is disconnected, the LED continues to to be on. The LED can be switched off, by pressing the other push button.
The signal is now reset and retained, until an different input is made. To reset, the so called threshold input is used.

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