Turn it on and off
Power On
Briefly press the button using a stick or a pen.
Watch the led reaction.
If steady (~10s):
The device is turning on and sending an initial message.
It will then perform a GPS location for approximately 45 seconds.
The first measurements will be received around 10 minutes later.
If slow continuous blinking:
Capacitor charging is in progress, wait for a few minutes.
Once the led stops blinking, the startup continues.
Power Off
Press the button again. The LED blinks rapidly 5 times then fades.