3 LED breathing controller module

This little module will directly drive up to three LEDs, causing them to ramp up and down in brightness in a breathing mode. It measures just 24 x 12 x 2.5mm so is small enough to embed in many projects. Just feed it up to 5V and you're away.

The module has three output channels which do not pulse in sync, but instead are somewhat out of phase. Of course, you can use 1, 2 or 3 of the outputs, it's up to you. Current control is not included on the board, so make sure you use resistors on the outputs.

See the video below for how the module works (note, LEDs and battery holder are not included, just the module itself).