Brief 555 timer monostable one shot mode circuit

Monostable mode 555 timer, also called a one shot, responds to a low trigger voltage by giving a single high output for a period of time set by the values of the timing capacitor and it’s resistor. The output then drops back low and stays there until triggered again. It’s got one stable state (low), so it is called monostable.

Diagram

Simple 555 timer monostable one shot mode circuit schematic diagram by electronzap electronzapdotcom
Simple 555 timer monostable one shot mode circuit schematic diagram by electronzap electronzapdotcom


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I really like this easy to use 8 battery universal charger. Made a few videos with it.

Video

Briefly pressing the button lights the LED for a period of time set by the capacitor and it’s charging resistor.
Quick 555 timer monostable one shot mode lighting an LED circuit schematic to breadboard build

Other basic 555 circuits:

555 timer pin layout illustrative diagram by electronzap electronzapdotcom
555 timer pin layout illustrative diagram by electronzap electronzapdotcom

Brief 555 bistable mode flip flop alternating LEDs circuit

Brief 555 timer astable multivibrator mode circuit

Brief 555 Schmitt trigger logic inverter

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  • Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.