Dual LED Flasher
The LED Blinky is one of our simplest projects ever, can be assembled in about 15 minutes and will definitely get attention when worn. This circuit is a very simple LED flasher, alternating between two LEDs.
With only a limited number of components, consisting of two transistors, two capacitors, four resistors, two LEDs, the PC board and a battery – this system can be assembled by a novice in a matter of minutes with common parts from around your workbench.
The LED Blinky is available in several configurations, from fully assembled and tested units, kit of components you can build, or just the bare board allowing you to supply your own components.
Average assembly of the system in less than 15 minutes is possible. The PC board is a high quality, double-sided design, complete with solder masks on both sides, plated holes along with a high-contrast silk-screen labeling component positions measuring only 1.2” x 1.2” (31mm x 31mm). The design allows for the placement of a variety of sizes of LEDs including tiny 3mm models, standard 5mm models, all the way up to the huge 10mm models. The best effect is achieved when using LEDs with a frosted lens – this produces a nice glow as opposed to regular LEDs which produce a spot-light effect.