Check if the Driver is Installed

1. Open Device Manager: Press Windows + X and select Device Manager.
2. In Device Manager, expand the Ports (COM & LPT) section.
3. Look for Silicon Labs CP210x USB to UART Bridge. If it appears, the driver is installed. If not, you’ll need to install it manually.

Download the Driver

Step 1: Download the CP210x Universal Windows Driver

• Go to the Silicon Labs: CP210x driver download page.
• Download the CP210x Universal Windows Driver.
• Once downloaded, find the ZIP file in your Downloads folder.

Step 2: Extract the Driver

• Locate the downloaded ZIP file in your Downloads folder.
• Right-click the file and select Extract All….
• Choose a destination folder (e.g., your Desktop) for the extracted files.

Step 3: Install the CP210x Driver

1. Open Device Manager again (if it’s not still open).
2. Expand the Ports (COM & LPT) section.
3. If you see an Unknown device or not yet listed CP210x entry, right-click it; otherwise right-click the existing Silicon Labs CP210x USB to UART Bridge.
4. Select Update driver from the context menu.
5. Choose Browse my computer for driver software.
6. Click Browse and navigate to the folder where you extracted the driver files.
7. Click Next to begin the installation.

Update the Driver

1. Windows will install the driver. Once complete, you should see Silicon Labs CP210x USB to UART Bridge listed under Ports (COM & LPT).

Verify the Installation

• Restart your computer if prompted or if the driver doesn’t appear immediately.
• Open Device Manager and confirm the CP210x driver appears under Ports (COM & LPT).