USB shield – usb host shield
if you will not use External Power please be sure this jumpers are soldered as below :

so after soldering it will be like this image

Jumber wires kit for breadboard U-shape
1 × 23 SAR
Advanced Kit for Arduino UNO Pojects
1 × 569 SAR Subtotal: 592 SAR
Jumber wires kit for breadboard U-shape
1 × 23 SAR
Advanced Kit for Arduino UNO Pojects
1 × 569 SAR Subtotal: 592 SAR
if you will not use External Power please be sure this jumpers are soldered as below :

so after soldering it will be like this image

All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components