giovanni
Well-known member
Hey guys, I vaguely remember taking a digital circuit class in college but nothing stuck with me apparently… I promised the kids that I would make them a little box with some pots and switches and LEDs that they can play with (my daughter has been calling it her Time Machine [not sure why my phone capitalized that but I’m too lazy to change it]). The trick is that they love momentary buttons (like tact switches or similar) and I decided we could use them to turn some LEDs on and off. First push, on, second push, off. So that’s a latching flip flop circuit right? I have been trying to figure out the easiest way to make a circuit with, say, 2-3 of these and I’m having a hard time finding the right solution. I think I may have option paralysis after looking at too many examples online that do almost what I want (I think the closest is the first example from this).
So I am wondering if anybody on the forum has a suggestion of a circuit I can use for this. I don’t think I need a relay, I should be able to use a CMOS digital chip or something (I have a bunch from the 4000 series, one of those should work) and hopefully no need for multiple chips. I am open to using transistors too but I am trying to optimize for space and the fact I am not planning to use a PCB. Maybe vero board.
Suggestions are greatly appreciated!
So I am wondering if anybody on the forum has a suggestion of a circuit I can use for this. I don’t think I need a relay, I should be able to use a CMOS digital chip or something (I have a bunch from the 4000 series, one of those should work) and hopefully no need for multiple chips. I am open to using transistors too but I am trying to optimize for space and the fact I am not planning to use a PCB. Maybe vero board.
Suggestions are greatly appreciated!
