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

ATmega328 Mircocontroller 1 × 29SAR
power supply for bread board 5v,3.3v 1 × 18SARSubtotal: 47SAR
ATmega328 Mircocontroller 1 × 29SAR
power supply for bread board 5v,3.3v 1 × 18SARSubtotal: 47SAR
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