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

Dip Switch 8P 1 × 9SAR
Switches push button 5pcs 12x12x7.3 – tactile switch 1 × 6SAR
WeMos D1 ESP8266 Wifi Board 1 × 98SARSubtotal: 113SAR
Dip Switch 8P 1 × 9SAR
Switches push button 5pcs 12x12x7.3 – tactile switch 1 × 6SAR
WeMos D1 ESP8266 Wifi Board 1 × 98SARSubtotal: 113SAR
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