SignalK plugin to add WebApp tiles to a B&G/Navico MFD

This plugin allows you to add WebApps to your MFD. Possible use cases are:

• NavTex messages
• SailTrim

Screenshot

Ethernet required

WebApps will only appear on the MFD when it's connected through wired Ethernet. You can read more on how to make an Ethernet connection here

IP addresses

Because these tiles typically represent hardware on the ethernet network, each tile is expected to have a unique IP address. If you want to add multiple WebApps from SignalK you can add virtual IPs to your interface like this: $ sudo ip addr add 192.168.1.3/24 dev eth0 where 192.168.1.3 is the IP to add and eth0 the interface to add it to.

SignalK needs to be restarted to make SignalK bind to the ports on the newly added IPs.

A link on how to make this permanent for different Raspbian versions would be good here.

One solutions (I know, a bit clumsy) is:

Add a crontab entry for root:

@reboot /root/bin/addIPs.sh

And then have a file /root/bin/addIPs.sh with:

#!/bin/bash
export PATH=$PATH:/usr/sbin/:/usr/bin
sleep 60
# Additional IPs for SignalK WebApps
ip addr add 192.168.3.10/24 dev eth0
ip addr add 192.168.3.11/24 dev eth0
ip addr add 192.168.3.12/24 dev eth0
ip addr add 192.168.3.13/24 dev eth0

# Restart SignalK to pick bind to newly added IPs
systemctl restart signalk