Hi,
I'm new to this board. I do need some help with a small project using LED's.
I got this idea from a toy sword I bought my son at a circus. It had 18 LEDs soldier together in parallel ( one on top of another) looked kind of like a ladder. This sword worked on three AA 4.5 battery. It would just turn on and off. After my son had no interest in it I took it a part to see how it was design. I didn't see in resistor unless it was in the on/off switch. one wire run to the + and the ground to -.
Now, I'm making two small caution lights that can work on 3v or 4.5 using these lights. The LED are red and rated @ 2v each. I have carefully coiled the LEDs and hot glued them in a 4" lens with only have two wires going down into the project box to the battery pack. It will light up the lens very bright just like it did in the sword. I now want them to flash like a caution light at a road construction site. This is were my problem is. I have looked at a lot of 555 timer circuit but they are for one or two LEDs. I need a flasher board that will work these 18 LEDs wired in parallel and off 3v or 4.5.
Thanks,
Jim