Sure, your flashing, chip-tune playing T-shirt is really cool at the party… but at some point you need to turn it off. And yes, you could just pull the battery, or maybe you’ve even sewn a LilyPad slide switch in-line. Wouldn’t it be nice if there was just a switch on the battery? Well, look no further.

These modules are ideally suited to adding a slightly different light display to your project.

This LilyPad board will light up in whatever colour you like, you can even chain several together to form a display or an addressable string

Small inconspicous power supply for the LilyPad Arduino electronics system. AAA battery clip, accepts from 1.2V to 1.5V