Remote Controlled LED Bar

Thread Starter


Joined Jun 17, 2007
I'm trying to form a bar with 2 rows of LED lights that are triggered by a remote (on when pressed, off when not) 10 LEDs per row...

Can a single Lithium battery sustain off and on usage for at least 20-30 hours of usage...and if not, how would I situate resistors, capacitors, or whatnot...

I know SIMPLE circuitry, however, not when soldered to a breadboard. If anyone is interested in helping me...I would greatly appreciate it.

Ron H

Joined Apr 14, 2005
What controls the number of LEDs which are turned on? Or are all 20 of them always on when the remote is activated?


Joined Jun 30, 2006
If you're using a standard remote you will need to know the codes for it and will need to know what frequency it sends on. Standard is around 40khz and there are IR receivers for that and several other common frequencies.

But why not design a circuit A that sends data serially to circuit B then when you've debugged that and it works you replace the wire with an RF data link.

It may be a bit more complex but is doable.

An IRDA article is here