can the pi 3 control wifi power?

Hi all,

I am architecting a project in which it will be helpful to control the radio power of the WiFi on the Pi 3. Can this be done?

0 clem57 over 9 years ago

In general the answer is yes, but it depends on the Linux you have installed and chip driver capabilities.. See https://wireless.wiki.kernel.org/en/developers/documentation/ieee80211/power-savings for a discussion.
Clem
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0 Former Member over 9 years ago in reply to clem57

Thanks for jumping in, Clem. I genuinely appreciate.

And forgive me but I'm not sure I was entirely clear. I am not concerned with saving power but with actually reducing the broadcast power of the WiFi radio. The application I'm architecting operates in a very small area, and the design of the associated hardware elements may be simplified if I can actually reduce the broadcast power of the WiFi radio on the Pi 3 board.

Of course if I simply missed that in the pointer you sent me, please point out what a dolt I am. I never mind being corrected.

And thanks again for your help.
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0 clem57 over 9 years ago in reply to Former Member

Here is the details of the Broadcom wireless chip in Raspberry Pi 3 in http://www.cypress.com/file/298076/download . There are a few sections mentioning the power management feature. Beware that although the chip may do these things, the driver code in the OS may or may not support such features like I stated above. Especially since this is new chip. I would consider maybe using your own wireless solution if this proves to be not supported at this time. Sorry for long winded answer.
Clem
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0 Former Member over 9 years ago in reply to clem57

Thank you again, Clem, for this pointer. I'm going through the specs now, and if between the Cypress/Broadcomm chip and the OS broadcast power is not manageable, I'll certainly be following your suggestion and using my own wireless solution.

Sheldon
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