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

Small Wire Cutter
1 × 18 SAR
CNC Shield Expansion Board + 4 DRV8825
1 × 183 SAR Subtotal: 201 SAR
Small Wire Cutter
1 × 18 SAR
CNC Shield Expansion Board + 4 DRV8825
1 × 183 SAR Subtotal: 201 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