The firmware in the button supports the Immediate Alert Service which allows the remote application to turn on a pre-determined sequence.
There is no support to just turn on an LED only once.
Immediate Alert Service
The Immediate Alert Service causes an alert in the V.BTTN when it is written with a value other than “No Alert.”
The V.BTTN alert behavior is as follow:
00 No Alert.
01 Chirp every 2 seconds for 20 seconds.
02 Chirp + blink red LED every 2 seconds for 20 seconds