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Community Bot
Community Bot
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In a microcontroller powered by a solar cell we need to have the current time. When the sun decrease the micro-controller switch off and all the volatile data vanish. When the sun increase the micro-controller reboot and we need to set the time on reboot.

I had an idea but I do not know enough wifi to be sure it's feasible : Getting the current time from the surrounding wifi signals.

In this post How much information can be gathered about a network without connecting?How much information can be gathered about a network without connecting? you can get :

  • ESSIDS BSSIDS
  • Crypto strength and authentication scheme (Pre shared Key vs EAP/Radius)
  • Signal strength
  • ....

But I can't see if the AP current time is obtainable ?

In a microcontroller powered by a solar cell we need to have the current time. When the sun decrease the micro-controller switch off and all the volatile data vanish. When the sun increase the micro-controller reboot and we need to set the time on reboot.

I had an idea but I do not know enough wifi to be sure it's feasible : Getting the current time from the surrounding wifi signals.

In this post How much information can be gathered about a network without connecting? you can get :

  • ESSIDS BSSIDS
  • Crypto strength and authentication scheme (Pre shared Key vs EAP/Radius)
  • Signal strength
  • ....

But I can't see if the AP current time is obtainable ?

In a microcontroller powered by a solar cell we need to have the current time. When the sun decrease the micro-controller switch off and all the volatile data vanish. When the sun increase the micro-controller reboot and we need to set the time on reboot.

I had an idea but I do not know enough wifi to be sure it's feasible : Getting the current time from the surrounding wifi signals.

In this post How much information can be gathered about a network without connecting? you can get :

  • ESSIDS BSSIDS
  • Crypto strength and authentication scheme (Pre shared Key vs EAP/Radius)
  • Signal strength
  • ....

But I can't see if the AP current time is obtainable ?

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Michael Courcy
Michael Courcy
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  • 1

Getting the current time from wifi networks without connecting

In a microcontroller powered by a solar cell we need to have the current time. When the sun decrease the micro-controller switch off and all the volatile data vanish. When the sun increase the micro-controller reboot and we need to set the time on reboot.

I had an idea but I do not know enough wifi to be sure it's feasible : Getting the current time from the surrounding wifi signals.

In this post How much information can be gathered about a network without connecting? you can get :

  • ESSIDS BSSIDS
  • Crypto strength and authentication scheme (Pre shared Key vs EAP/Radius)
  • Signal strength
  • ....

But I can't see if the AP current time is obtainable ?