Please don't use private mail, these types of posts should be in the public forum. That's how it works here.elwilliams said:Sent 1/3/2008 11:23PM
oh ok its fine here though, so do you think i will be able to do that and make it double flash a group of 5 LEDs then double flash another group of 5 LEDs...
In particular, a 1N914 or 1N4148 would both be good replacements, and very easy to find.FYI: The 1N4454 is a general purpose signal diode. Almost any reasonable rectifier will work here.
Depends, you can have a 14 pin chippie where every pin is used with diodes everywhere, or you can have 4 555's. Parts count is a lot lower with 555's, along with complexity. Troubleshooting is a lot simplier too. I've build a lot of these circuits, I went with my best opinion for what was wanted. The 4 555's will look a lot different, better flash pattern.A doubt.. Would a 4017 and a 555 make an easier circuit than 4 timers??
I've had the same thought. I'm willing to help the OP with whatever though, but I just keep missing his posts.Don't police cars use very bright lights, not just dim little LEDs?
OK, the good news is the design has jelled and simplified somewhat. Soon as I get one done I'll post a revised schematic up here.yes it is for a police car for a mini light bar, im sry i was getting confused there is going to be 15 LED's on one side and 15 LED's on the other, i know its not going to be very bright but i dont want it bright, and i need them to flash twice on 15 and switch sides and flash another set of 15, like that picture of the car i showed you but with LED's, so if you can make a schematic for that, and it will be ran by 12v
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