If you buy any littleBits kit, we provide you with a power cable to connect a 9V battery to your power module. That said, we figure you might find yourself wanting to creating extra ones or one that fits your specific needs. The cables we provide are 6 inches long for instance, but you might want to create a longer one to suit your creative needs.
To create your own power cable, here’s what you’ll need a 9v snap to barrel jack with the following specifications:
- 2.1mm inner diameter
- 5mm outer diameter
- center positive with a round connection to the power bit