LPMS USB detection problem

LPMS uses silabs CP210x ic as the usb interface chip.

The CP210x can be configured into two interface modes:

1. Virtual COM Port (VCP)

2. USBXpress mode

USBXpress driver is required to interface with the sensor under USBXpress mode. The driver can be found in Silabs' developer website:

https://www.silabs.com/developers/direct-access-drivers

Open

The direct download link for USBXpress SDKv.6.7.4 can be access from the link below:
https://www.silabs.com/documents/public/software/install_USBXpress_SDK.exe
 
After installation, the driver for the USBXpress can be found under the following folder:
<SDK FOLDER>/MCU/USBXpress_SDK/Driver