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Login

1. Preparation​

  • Luckfox Lyra development board
  • USB Type-A to Type-C data cable
  • 100M/1000M Ethernet cable and a router
  • USB-to-TTL module

Note: The default baud rate of RK3506 is 1500000. Some USB-to-serial chips do not support this baud rate. Even within the same chip family, variations may exist. Confirm compatibility before purchasing. Recommended modules: CH343, FT232, CP2102. Not recommended: PL2303, CH340, etc.

Default User Accounts​

  • Buildroot

    Username: root
    Password: luckfox
    USB Static IP Address: 192.168.123.100

  • Ubuntu22.04

    Username: lyra
    Password: luckfox
    USB Static IP Address: 192.168.123.100

2. ADB Login​

2.1 Installing ADB​

  1. Download and extract the ADB package (Download here).
  2. Open System Properties -> Advanced System Settings -> Environment Variables.
  3. Add the extracted ADB path to the system variables.
  4. Save the environment variable settings.

2.2 Logging in via ADB​

  1. Press Win + R, type CMD, and open a terminal. Run the adb command to confirm installation.

  2. For a single device:

    C:\Users\cjw>adb shell
    root@luckfox:/#

  3. For multiple devices, use the adb devices command to identify the target device. If the device isn't detected, try replacing the Type-C cable.

    C:\Users\cjw>adb devices
    List of devices attached
    103ea97dececc831        device
    d48936ed7d1551fc        device

    Connect to the specific device:

    C:\Users\cjw>adb -s d48936ed7d1551fc shell
    root@luckfox:/#

3. Serial Login​

  1. Connect the USB-to-TTL module to your PC and the TX, GND, and RX pins on the Lyra board as shown below:

  2. Open Device Manager on your PC and note the COM port assigned to the module.
  3. Download MobaXterm, extract, and open it.
  4. Set up a Serial session in MobaXterm with the baud rate set to 1500000 (1.5 Mbps).

  5. Click OK, press Enter, and log in with the username and password provided above.

4. SSH Login​

The latest firmware for the Luckfox Lyra series has SSH enabled by default. Since Luckfox Lyra and Luckfox Lyra B lack Ethernet ports, they can only log in via USB connection using a static IP address. In contrast, the Luckfox Lyra Plus allows login through an IP address assigned via its Ethernet port.

4.1 Setting Up RNDIS​

Setting up RNDIS allows the PC and development board to share the same network, enabling SSH login. Without it, communication between the PC and the board is not possible.

  1. Windows Security Center -> Firewall & Network Protection -> Turn off the firewall.

  2. Configure the RNDIS network adapterOpen,Settings -> Advanced Network Settings -> Change Adapter Options.

  3. Locate the adapter named Remote NDIS based Internet Sharing Device, right-click, and select Properties.

  4. Set the IPv4 static IP address to 192.168.123.99 (ensure no conflict with other devices).

4.2 Obtaining Lyra Plus Dynamic IP​

If the computer and the development board are on the same local network, establishing an SSH connection is typically straightforward. Ensure the development board's SSH service is enabled (enabled by default) and that no firewall or other network configuration is blocking the connection. Then, retrieve the board's IP address using one of the following methods:

  1. Use a LAN IP Scanning Tool,For example, nmap
    i. Run Zenmap and click the Scan button to scan the IP addresses in the current local network.
    ii. Record the IP addresses currently visible.
    iii. Power on the development board and ensure it is connected to the network.
    iv. Click the Scan button again to rescan the IP addresses in the network:

    v. Eliminate all previously recorded IP addresses; the remaining IP address is your Lyra's IP address.

  2. Log in to the development board via ADB or a serial port, and use the ifconfig command to view the IP address.

4.3 Logging in with MobaXterm​

  1. Download the MobaXterm remote login software and extract it to use.
  2. Open MobaXterm, select Session -> SSH, and enter the IP address you found earlier (e.g., 192.168.10.128) in the Remote host field. (Replace with your actual IP address.)

  3. After entering the information, click OK, and input the Omni3576 username and password: luckfox. (Note: No visual feedback appears while typing the password; press Enter once you've finished entering it.)

  4. You will now be successfully logged into the Lyra.