Indicator light when DSL is down (not up!) BT HH5A

[UnH1ng3d]

Hello This is my first post so I'm sorry if it's in the wrong category - I'm hoping it should be right though.
I'm using a BT Homehub 5A and I'm trying to get an indicator LED to come on when the DSL connection is NOT working. After reading through this, I have managed to get the opposite of this quite easily by editing the file /etc/config/system adding the section:

config led 'broadband'
        option name 'Broadband LED'
        option sysfs 'red:broadband'
        option trigger 'netdev'
        option dev 'dsl0'
        list mode 'link'

Can anyone tell me how to get the opposite of this?

[d687r02j8g]

You may need to write a script to control the led. There doesn't seem to be a way to invert the logic in config led

Change Wan LED color depending on if the connection is up or not

I have TP link Archer c20 V4, on the stock firmware when the internet connection is not working the Wan led turns orange from green. How do i go about doing that on OpenWRT i know the stock firmware pings its website to check if the wan is receiving data or not. how can i do the same on OpenWRT.

[UnH1ng3d]

That's done it! Thanks a lot

[d687r02j8g]

If your problem is solved, please consider marking this topic as [Solved]. See How to mark a topic as [Solved] for a short how-to.
Thanks!

[UnH1ng3d]

Thanks to @d687r02j8g for sending me to the right place.

I created a file /etc/hotplug.d/iface/00-netstate-LEDs
with contents:

#!/bin/sh

[ "$INTERFACE" = wan ] || exit 0
if [ "$ACTION" = ifup ] ; then
echo "none" > /sys/class/leds/red:broadband/trigger
fi
if [ "$ACTION" = ifdown ] ; then
echo "default-on" > /sys/class/leds/red:broadband/trigger
fi
exit 0

That's it!

Those LED names are specific to the BT Homehub 5A

This will put the red broadband LED on when the DSL connection is down and switch it off again when it comes back up.

[d687r02j8g]

Excellent. Thanks for posting your solution!