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

R307 Optical Fingerprint 1 × 167SAR
Medium Kit for Arduino Projects 1 × 229SARSubtotal: 396SAR
R307 Optical Fingerprint 1 × 167SAR
Medium Kit for Arduino Projects 1 × 229SARSubtotal: 396SAR
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