Pico blink onboard LED on RX message

[JoseyEire]

Hi all,
I got Meshtastic working on the Pico W + Wavshare and sending messages to/ from it.

I was wondering would it be possible for the Pico to blink it’s onboard LED (GPIO 0) when it receives a message?

I tried this using the “external notification” module but no joy.

Here's my config:
enable external notification module
meshtastic --set external_notification.enabled true

alert on message receive
meshtastic --set external_notification.alert_message true

set the GPIO 0 pin
meshtastic --set external_notification.output 0

set GPIO 0 high for 2 sec when triggered
meshtastic --set external_notification.output_ms 2000

Any help is appreciated.

Thanks,
Josey