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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 the screen firmware

  • A memory card with a capacity of no more than 32GB is required, and the transfer speed of the TF card must be class10 or above. It is recommended to use a TF card from brands like SanDisk.

Ethernet Cable Wiring​

System Packages Suitable for FLY Host Computers​

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Suitable for C8 PI_V2 PI GEMINI series

  • Download the system package

Install Services​

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Other host computers need to install services by themselves

Note

The installation process requires an internet connection

sudo apt install isc-dhcp-server

Configure Network​

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  • This tutorial will occupy the host computer's Ethernet port, and only the connection to the screen can be used.
  • If not needed, just completely delete 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; # Google Public DNS as an example
    default-lease-time 600; # Default lease time in seconds
    max-lease-time 7200;    # Maximum lease time in seconds
}

Restart the system first, then execute the following restart service

Or restart the network service

sudo systemctl restart NetworkManager

This operation will disconnect and reconnect the internet

Restart the service

sudo systemctl restart isc-dhcp-server

The local IP address should be 192.168.251.100

Improve WIFI Priority​

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  • This command is to improve network priority. If it is not added, it will not be able to connect to the internet and download things properly!!!
  • Please add the following instructions in /etc/rc.local on the host computer
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