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Ethernet Cable Usage Tutorial

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The screen firmware needs to be manually updated.

Screen Firmware Download​

  • Click to download screen firmware

  • A memory card no larger than 32GB is required, and the TF card transfer speed must be Class10 or higher. It is recommended to use brands such as SanDisk.

Ethernet Cable Wiring​

System Package for Use with FLY Host​

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Applicable to C8 PI_V2 PI GEMINI series

  • Download system package

Service Installation​

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Other hosts need to install services themselves.

Note

The installation process requires internet access.

sudo apt install isc-dhcp-server

Network Configuration​

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  • This tutorial will occupy the host's network port, allowing only the screen to be used.
  • If not needed, simply delete all the modified and added configurations below.

Modify /etc/network/interfaces.d/eth0

auto eth0
iface eth0 inet static
address 192.168.251.100
netmask 255.255.255.0
broadcast 192.168.251.255
network 192.168.251.0
gateway 192.168.251.1

Modify /etc/default/isc-dhcp-server

# Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)

# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
#DHCPDv4_CONF=/etc/dhcp/dhcpd.conf
#DHCPDv6_CONF=/etc/dhcp/dhcpd6.conf

# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
#DHCPDv4_PID=/var/run/dhcpd.pid
#DHCPDv6_PID=/var/run/dhcpd6.pid

# Additional options to start dhcpd with.
#       Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
#OPTIONS=""

# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
#       Separate multiple interfaces with spaces, e.g. "eth0 eth1".
INTERFACESv4="eth0"
#INTERFACESv4="eth0"
INTERFACESv6=""
#INTERFACES="eth0"

INTERFACES="eth0"

Modify /etc/dhcp/dhcpd.conf, add the following content at the end

# ddns-update-style none;
subnet 192.168.251.0 netmask 255.255.255.0 {
    range 192.168.251.100 192.168.251.200;
    option routers 192.168.251.1;
    option domain-name-servers 8.8.8.8, 8.8.4.4; # Example using Google Public DNS
    default-lease-time 600; # Default lease time in seconds
    max-lease-time 7200;    # Maximum lease time in seconds
}

Reboot the system first, then execute the following service restart

Or restart the network service

sudo systemctl restart NetworkManager

This operation will cause a network disconnection and reconnection.

Restart the service

sudo systemctl restart isc-dhcp-server

The local IP address should be 192.168.251.100.

Increase WIFI Priority​

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  • This command is to increase network priority. If not added, normal internet access and downloads will not be possible!!!
  • Please add the following instruction in /etc/rc.local on the host
sudo ip route del default && sudo ip route add default via $(ip route show dev wlan0 | grep 'default via' | awk 'NR==1 {print $3}') dev wlan0