Wireless

This section describes how to use the wireless network card function on the Raspberry Pi (as used below), laying the foundation for subsequent project development.

Note: The PCIe interface must be enabled before using this function.

Enable PCIe Interface

• Enabling the PCIe gen3 interface (PCIe gen2 is enabled by default)
  • Edit the config.txt file

    sudo nano /boot/firmware/config.txt  

  • PCIe defaults to gen2. To enable PCIE gen3, add the following to config.txt

    dtparam=pciex1_gen=3

  • After modification, reboot the Raspberry Pi to recognize the device

    sudo reboot

  • After reboot, check the PCIe recognition status (the output may vary depending on the module)

    lspci

Wireless Network Card Operations

• If the PCIe interface is not enabled, enable the PCIe interface first

• Various module usage: RTL8822CE | AX200 | AX210 | BE200