Get a really BIG LED, and use roofing flashing.

 

I don't flash LEDs, I flash microcontrollers. I use PICKIT 2.

Bob

 

Get a really BIG LED, and use roofing flashing.

Hello....

Thanx for the replies. Keep them coming...

 

Get a really BIG LED, and use roofing flashing.

More seriously, I expect that there is at least one circuit which uses one 555 chip, and alternates LEDs.

Yep, I thought I could find it online.

http://wild-bohemian.com/electronics/flasher.html

With a microprocessor, one doesn't need timing resistors and capacitors, and can vary rates and duty cycles without changing component values. That would actually be my favorite way to accomplish this task.

 

As a Mac user, I don't flash, I throb.

 

Yep, I thought I could find it online.

http://wild-bohemian.com/electronics/flasher.html

Yes it has all been done already. The only thing original now is the artwork and software source code. But even that sometimes is an rip off someone else's work!

 

As a Mac user, I don't flash, I throb.

Mac? You must be rich!

 

No, just value-conscious. I need a machine that works well for a long time. I expect at least 10 years. I prefer lower TCO than lower initial price, which is a false value.

 

No, just value-conscious. I need a machine that works well for a long time. I expect at least 10 years. I prefer lower TCO than lower initial price, which is a false value.

I used to use an Mac back in 1996 in my job as an scanner operator. I also did page layouts and stuff too. I remember them being 150MHz machines, which were state-of-the-art at that time. Did the graveyard shift 8pm to 8am Monday to Sunday and often used to crash out on the floor at 3am for a couple of hours shuteye. Sooooo tired...

 

Cheap flasher contest.

http://www.kerrywong.com/2014/03/19/bjt-in-reverse-avalanche-mode/

 

Cheap flasher contest.

http://www.kerrywong.com/2014/03/19/bjt-in-reverse-avalanche-mode/

Hmm breakdown voltage of the transistor. That's how you make white noise circuits aye?

 

Similar. I think white noise uses base emitter breakdown and doesn't "latch up".