Hello again,
It's been a while since I have been able to post (let alone look at), this
board. I am glad to be back because I need some electronics geniuses to
help me.
I am building a basic chaser light "knight rider" lighting project. I already have
the controller and I am in the process of building the light bar itself.
Here is what I need: The basic outline of the project is that BEFORE the
system starts to go through it's back and forth sequence, I want all eight
lights to come on for about 2 to 3 seconds and then start sequencing
back and forth like normal.
In another forum a guy said he has done so " I used the 74LS138 decoder multiplexer chip. With that circuit I simply used a 555 timer setting the RC network to hold a relay for about 1/2 of a second. I simply pumped all the prestage transistors with a positive signal at the same time with the relay and used small signal diodes to prevent backflow during regular scan...".
I tried to get the guy to tell me how to do this but I got no answer so here
I am.
Would it be possible for someone to draw me a schematic of what he is
talking about (or if you have a simpler way of doing it, keep in mind I don't
have access to a pic programmer so I have to do things the old fashioned
way).
If you need specs, I am running led's for the lights (don't like halogen bulbs
they draw too much current), the ic's for the controller are:
cd4060be, cd4070be and cd4028be.
This WILL be installed in a car so it will be run off 12v.
I know enough to tinker around with a few things but I have no clue
on how to get this "all on " effect.
I do plan to save a little cash and start studying electronics so I don't have
to bug you guys for help (BELIEVE ME I APPRECIATE IT)!!!!!
Thanks for any help/suggestions (if any) and I look forward to being more
active on the boards.
Craig
It's been a while since I have been able to post (let alone look at), this
board. I am glad to be back because I need some electronics geniuses to
help me.
I am building a basic chaser light "knight rider" lighting project. I already have
the controller and I am in the process of building the light bar itself.
Here is what I need: The basic outline of the project is that BEFORE the
system starts to go through it's back and forth sequence, I want all eight
lights to come on for about 2 to 3 seconds and then start sequencing
back and forth like normal.
In another forum a guy said he has done so " I used the 74LS138 decoder multiplexer chip. With that circuit I simply used a 555 timer setting the RC network to hold a relay for about 1/2 of a second. I simply pumped all the prestage transistors with a positive signal at the same time with the relay and used small signal diodes to prevent backflow during regular scan...".
I tried to get the guy to tell me how to do this but I got no answer so here
I am.
Would it be possible for someone to draw me a schematic of what he is
talking about (or if you have a simpler way of doing it, keep in mind I don't
have access to a pic programmer so I have to do things the old fashioned
way).
If you need specs, I am running led's for the lights (don't like halogen bulbs
they draw too much current), the ic's for the controller are:
cd4060be, cd4070be and cd4028be.
This WILL be installed in a car so it will be run off 12v.
I know enough to tinker around with a few things but I have no clue
on how to get this "all on " effect.
I do plan to save a little cash and start studying electronics so I don't have
to bug you guys for help (BELIEVE ME I APPRECIATE IT)!!!!!
Thanks for any help/suggestions (if any) and I look forward to being more
active on the boards.
Craig