Bonjour,
J'ai vu que le Gigablue possede la fonction timer:
timer
a device that makes a sound when a particular number of minutes, hours, etc. have gone past:He set the timer on the oven to/for 20 minutes(UK also time switch) a device on a machine that causes the machine to start or stop working at a particular point in the day
(= to record when 20 minutes had gone past).
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En d'autre termes, le timer fait la fonction reveil.