Hi
I have been 'out' of electronics for 20 years or so but have got sucked back working on a project for a controller for a simulator on a PC.
I just cannot seem to get my head around this one
I have two momentary switches they need to latch and send a high(s) to a switch going back to a PC each press of the switches toggles the switches to the PC on and off and lighting an led to show the on/of state
ok I can do that no prob with a 7474. Here's the tricky bit (for me anyway).
I need to have each momentary capable of toggling on and off independently as well as canceling the other latch only if it is on.
ie. only one switch allowed on at a time or no switches on at all
I really don't want to use the likes of a pic etc apart from not knowing how to program I have not got any!!!
Hope that makes sense
For the curious the pc switching is taken care of via a dedicated (commercial) board but it works the same as pressing a keyboard button (as far as the pc is concerned)
Thanks for any input on this.
I have been 'out' of electronics for 20 years or so but have got sucked back working on a project for a controller for a simulator on a PC.
I just cannot seem to get my head around this one
I have two momentary switches they need to latch and send a high(s) to a switch going back to a PC each press of the switches toggles the switches to the PC on and off and lighting an led to show the on/of state
ok I can do that no prob with a 7474. Here's the tricky bit (for me anyway).
I need to have each momentary capable of toggling on and off independently as well as canceling the other latch only if it is on.
ie. only one switch allowed on at a time or no switches on at all
I really don't want to use the likes of a pic etc apart from not knowing how to program I have not got any!!!
Hope that makes sense
For the curious the pc switching is taken care of via a dedicated (commercial) board but it works the same as pressing a keyboard button (as far as the pc is concerned)
Thanks for any input on this.