Ethernet

Every FluidBoard comes with a built-in 10/100 Mbps Ethernet port. Plug in a cable and you're connected — no drivers, no configuration, no fiddling with WiFi passwords.

Why Ethernet?

WiFi works fine on the workbench, but the moment you put your controller inside a shielded enclosure — which is best practice for EMI — WiFi signal drops. Ethernet doesn't care about shielding. It's rock solid, low latency, and just works.

If you're running a VFD, plasma cutter, or any other high-EMI equipment, Ethernet is the way to go. Many professional CNC setups use shielded enclosures as standard practice, and Ethernet is the only wireless-free way to stay connected.

Features

• 10/100 Mbps auto-sensing — just plug in any Ethernet cable
• DHCP by default — gets an IP address automatically from your router
• Static IP supported if you prefer a fixed address
• mDNS discovery — find your board at http://fluidnc.local without knowing the IP
• All services — WebUI, Telnet, FluidWeb, and camera streaming all work over Ethernet
• WiFi and Ethernet can run at the same time — you don't have to choose

Configuration

Ethernet works out of the box with DHCP. No configuration needed for most setups.

If you need a static IP:

ethernet:
  cs_pin: gpio.10
  int_pin: gpio.4
  dhcp: false
  ip: 192.168.1.100
  gateway: 192.168.1.1
  netmask: 255.255.255.0
  spi_freq_mhz: 20

We do not support EtherCAT for servo motors.