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

IR Remote Control+Receiver Module 1 × 37SAR
ON-OFF Mini Switch 2Pins 1 × 5SAR
R301T Capacitive Fingerprint Module 1 × 173SARSubtotal: 215SAR
IR Remote Control+Receiver Module 1 × 37SAR
ON-OFF Mini Switch 2Pins 1 × 5SAR
R301T Capacitive Fingerprint Module 1 × 173SARSubtotal: 215SAR
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