Hi,
I am trying to create what I think should be a fairly simple circuit, but struggling....

I have 2 LEDs - when a "signal" voltage is applied, 1 LED should come on and stay on - if the voltage is removed and re-applied, the first LED should go off, and the second come on.... then back to the first etc... etc...

Can someone assist with this...?

regards,
Dave.

 

So, at any given time, one of the LEDs is lit and the other is dark, right? Each application of the signal just causes them to toggle back and forth?

When the system is first turned on, does it matter which LED of the two is on and which is off?

Any flip flop with complementary outputs can serve as the basis for your circuit.

How clean is the signal voltage? Does it have any glitches or bouncing?

What power is available for all of this?

When is the assignment due?

 

Hi,

Ideally, once the circuit has been used for the first time, future operation would have it "remember" which LED was on last....

The signal voltage would be a clean 12v.

The LEDs can have a separate 3v supply.

No particular timeframe for this project....


regards,
Dave.

 

But what about the very first time? Is it okay for which LED is on to be a coin toss?

As for remembering, that depends on whether power is continuously applied. If so, then remembering is trivial as that is it's normal behavior. But if you want it to remember even after it is shut down and power is removed, that's definitely doable, but more involved.

What is the forward voltage and nominal current for the LEDs?

 

Please state the intended purpose of the project,
and what it must, and must not, do under specified circumstances.
Is this an Automotive application ?
What is being monitored ?, and why ?
.
.
.

 

Can someone assist with this...?

If you provide a more complete description of the desired functionality.