import serial ser = serial.Serial('COM3', 115200, timeout=1) ser.write(b'Hello CP210x!') response = ser.readline() print(response)

To get your device up and running, you first need to download the official driver package from the Silicon Labs website or your device manufacturer. Once downloaded, you typically extract the ZIP folder and locate the cp210xvcpinstaller-x64.exe file. Running this executable launches a standard installation wizard. It is important to run the installer as an administrator to ensure it has the necessary permissions to modify system drivers. After the installation is complete, plugging in your device should trigger Windows to automatically assign it a COM port number, which you can verify in the Device Manager under the Ports (COM & LPT) section. Troubleshooting Common Issues

Click "Next" through the installation wizard and "Finish" when done.