Hi,

FYI, we are set-up in Berlin, but we are waiting for the video
conference laptop to finish updates, before we will join at our usual
spot: https://meet.jit.si/riot-hacknack
<https://www.google.com/url?q=https%3A%2F%2Fmeet.jit.si%2Friot-hacknack&sa=D&usd=2&usg=AFQjCNFHTh1Q1XkmW41QP4foGqrtJCLhWQ>

Best regards,

Martine

Am 23.01.20 um 18:42 schrieb Benjamin Valentin:
> Hi,
>
> we have a battery powered application that will spend most time in Deep 
> Sleep, so a wake-up will trigger a CPU reset with some backup memory 
> retained.
>
> To conserve energy, the radio interface should only be activated if 
> there is data to send. In the common case the sensor would just wake up, 
> take a measurement and decide nothing has changed since the last time, 
> and go back to sleep without ever activating the radio.
>
> Now setting NETOPT_STATE to NETOPT_STATE_SLEEP in the main thread might 
> be too late, the radio is already powered up at this point and 6lo will 
> have send an advertisement.
>
> So how could we configure the default radio state at compile time - and 
> seamlessly start networking if the application requests it?
>
> Best,
>
> Benjamin
>
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