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Forum Index : Microcontroller and PC projects : Onboard LED of the pico w

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andreas

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Joined: 07/12/2020
Location: Germany
Posts: 207
Posted: 10:54am 22 May 2023
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Is there a way to turn off a Pico W's onboard LED other than physically scratching the leads?

I know the manual says on page 10 that the GPIO pin is not accessible via BASIC - but it would be nice if there was an OPTION for this to reduce power consumption.

-andreas
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 9129
Posted: 10:56am 22 May 2023
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manual page 77
 
andreas

Senior Member

Joined: 07/12/2020
Location: Germany
Posts: 207
Posted: 11:00am 22 May 2023
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  matherp said  manual page 77


You are my darling!  

OPTION HEARTBEAT OFF is it!

-andreas
 
Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 4250
Posted: 05:38pm 22 May 2023
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If you seriously want to save power, turn WIFI off, or use a normal pico.

Volhout
PicomiteVGA PETSCII ROBOTS
 
andreas

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Joined: 07/12/2020
Location: Germany
Posts: 207
Posted: 04:26pm 23 May 2023
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  Volhout said  If you seriously want to save power, turn WIFI off, or use a normal pico.

Volhout


Yes, but it's the pico's job to let me know when a burglar is stealing my bike ;-)

-andreas
 
Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 6798
Posted: 05:39pm 23 May 2023
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In that case use the pico to disable the wi-fi completely until it's triggered by your alarm device (vibration sensor or whatever). Then switch it on. Even better if there's a GPS on there as well then it can let you where the bike is. :)
Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs
 
NPHighview

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Joined: 02/09/2020
Location: United States
Posts: 200
Posted: 06:56pm 23 May 2023
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I'm not close to my workbench right now (about 1,000 km away), but how do you disable WiFi programmatically? In the WebMite manual, I see two possibilities to test:

OPTION TCP SERVER PORT 0 (just one service, not the whole capability)
OPTION WIFI DISABLE (though that's implied, not explicit)
Live in the Future. It's Just Starting Now!
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 9129
Posted: 07:01pm 23 May 2023
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OPTION WIFI "",""

but whether it reduces power I don't know and it is a permanent option that causes a reset
 
Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 6798
Posted: 08:57pm 23 May 2023
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I suppose that if you were to use a non-W version with a separate wifi device you could just use a pin to switch its power off (via a mosfet). You could kill a GPS module the same way.
Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs
 
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