ne555

  1. MrsssSu

    Led dim to bright then bright to dim in a flip flop ne 555

    Hi all, above picture is a ne 555 flip flop circuit (1 off, 1 on) and vice versa. Lets say the red led receives an input (1) that is a constant dc voltage, how do I make the red led to go from dim to bright and then from bright to dim and vice versa with the blue led? Are there any schematic...
  2. MrsssSu

    NE 555 (On , Off, ON) when subjected to different input voltage

    Hi readers, :) I found this at Click here This is an example of a disconnect and reconnect circuit using NE555. This means that the state of load will be (High, then, Low, them High). However, when I simulated using LT Spice it just give me (Low and High only). Does anyone know how to make the...
  3. A

    Anyway to auto reset auto off switch using NE555 IC

    I have a need to turn off a load after set duration like 3min(have used different value of Capacitor and resistor) I am using a NE555 IC and going ahead with designing as shown below, my application in breadboard is working but I'll to press switch each time the off timer is needed to activated...
  4. K

    circuit using 555 timer that gives oscillations of frequency 'f' only after 't' seconds of power on or reset.

    thank you for your help and and point in the right direction is appreciated.
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