Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

LED's

A

alex101

0
Joined
Jan 26, 2010
Messages
9
Points
0
Hi guys,

Im new to laserpointerforums :) and i have a question, would anyone know where i can buy some blinking LED's......im wanting them to make a project light show any links ect....would be great thanks... alex


PS: sorry if i posted in the wrong spot
 





I have 100 5mm bright blinking white for $20 shipped if you want.
 
alex101 said:
Hi guys,

Im new to laserpointerforums :) and i have a question, would anyone know where i can buy some blinking LED's......im wanting them to make a project light show any links ect....would be great thanks... alex


PS: sorry if i posted in the wrong spot
Click to expand...

Checkout Candlepower Forums for answers
 
im a member there and have no luck over there thats why i joined here :)

i found some led's thanks to a member here know i need is a 555 timer thats built for flashing led's,chasing ect.......and i have no soldering or circuit knowledge to make one :(
 
alex101 said:
does anyone no how to make a 555 timer for led's ?
Click to expand...


Yes, all you need is 2 resistors a cap and a 555, about six inches of wire and a breadboard.

I can post the schematic if needed.

Want a great effect, use the 555 pulse to clock a TTL (74193) counter, followed by a 74154 decoder and sequence the LEDs .

The simple addition of a flip flop to that can make the LEDs sequence back and forth like the front of "Night Rider's" K.I.T. (The car)

Or if you prefer a cylon eye.


The circuit on the far left (8 pin IC) is a 555 pulse generator.

breadboard.jpg
 
Last edited:
Here is that schematic Alex. I'll send you a pm momentarily.

Special thanks to Forrest M. Mims III for the illustration extracted from "Engineers Notebook II"

555.gif
 
Last edited:
catching up on posts, had to take my son to the emergency room today, he slammed his thumb in the truck door.
 
He will lose a nail, but otherwise he's fine. Thanks for asking.

10 year olds are resilient.
 
Same thing happened to my little finger when I was 6 or something, also lost the nail. But it grew back! :D

It was very gory, it has a little mark left today lol.
 
You must log in or register to reply here.


Back
Top