This project uses a power module and a nine volt battery which are connected by a 9v-to-barrel jack connector. Also there is no diagram, so follow these steps:
1. Take the power module and 9v-to-barrel jack connector and put it to the barrel jack slot in the module (round).
2. Connect the 9v battery to the other end of the connector.
3. Plug in your USB to a thing that needs power. (It won't work on your phone, iPad tablet, but may work on a Kindle - not fire.)
4. Turn it on!!!
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