this project uses a power module and a nine volt battery witch are connected by a 9v to barrel jack connecter . Also there is no diagram so follow these steps:
1. take the power module and 9v to barrel jack connecter and put it to the
barrel jack slot in the module( round).
2. connect the 9v battery the other end of the connecter
3. plug in your usb to a thing that needs power.(it wont work on your phone ,iPad
tablet but may work on a kindle(not fire) )
4. turn it on!!!!!!