Re: Pi power

From	Martin Gregorie <martin@mydomain.invalid>
Newsgroups	comp.sys.raspberry-pi
Subject	Re: Pi power
Date	2021-01-06 16:05 +0000
Organization	A noiseless patient Spider
Message-ID	<rt4n4j$f8a$1@dont-email.me> (permalink)
References	<i5k91cFoj7cU2@mid.individual.net> <i5lnkqF5gbqU1@mid.individual.net> <i5ls2dFoj7cU6@mid.individual.net> <i5m0gmF77m0U1@mid.individual.net> <i5m2l7Foj7cU7@mid.individual.net>

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On Wed, 06 Jan 2021 15:17:59 +0000, TimS wrote:

> On 06 Jan 2021 at 14:41:25 GMT, Andy Burns <usenet@andyburns.uk> wrote:
> 
>> TimS wrote:
>> 
>>>  Andy Burns wrote:
>>>  
>>>>  Wouldn't be the biggest surprise in the world if the a cheap switch
>>>>  box just commoned all the 5V pins together
>>>  
>>>  Are these 5V signal or power?
>> 
>> Power, but only 55mA
> 
> Not enough to run a Pi, then, I imagine, but enough to flutter the Pi's
> red/green LEDs.

The red LED just shows that power is on - nothing more. 

The yellow and green ones show whether the Pi is active: stop a running 
Pi with the 'sudo stop' command and all the LEDs go out apart from the 
red one, which stays on until you switch off or unplug the wall rat.

That you don't know that shows that you usually stop your Pis by powering 
them off. Not a good idea because it can corrupt the SD card - and Murphy 
says that you WILL soon or later power it off while the SD card is in the 
middle of wear balancing - this will cause unrecoverable errors.

-- 
--  
Martin    | martin at
Gregorie  | gregorie dot org

Thread

Pi power Tim Streater <timstreater@greenbee.net> - 2021-01-05 22:54 +0000
  Re: Pi power Andy Burns <usenet@andyburns.uk> - 2021-01-05 23:16 +0000
    Re: Pi power "Mayayana" <mayayana@invalid.nospam> - 2021-01-05 19:59 -0500
      Re: Pi power A. Dumas <alexandre@dumas.fr.invalid> - 2021-01-06 07:31 +0000
        Re: Pi power "Mayayana" <mayayana@invalid.nospam> - 2021-01-06 08:18 -0500
        Re: Pi power jornws200602@xs4all.nl (Oscar) - 2021-01-06 14:02 +0000
    Re: Pi power mjb@signal11.invalid (Mike) - 2021-01-06 09:44 +0000
      Re: Pi power Martin Gregorie <martin@mydomain.invalid> - 2021-01-06 10:31 +0000
        Re: Pi power Tim Streater <timstreater@greenbee.net> - 2021-01-06 10:44 +0000
          Re: Pi power Joe <joe@jretrading.com> - 2021-01-06 11:03 +0000
      Re: Pi power Tim Streater <timstreater@greenbee.net> - 2021-01-06 10:32 +0000
        Re: Pi power Andy Burns <usenet@andyburns.uk> - 2021-01-06 10:57 +0000
          Re: Pi power TimS <timstreater@greenbee.net> - 2021-01-06 11:44 +0000
            Re: Pi power Andy Burns <usenet@andyburns.uk> - 2021-01-06 12:10 +0000
              Re: Pi power TimS <timstreater@greenbee.net> - 2021-01-06 13:25 +0000
                Re: Pi power Andy Burns <usenet@andyburns.uk> - 2021-01-06 14:41 +0000
                Re: Pi power TimS <timstreater@greenbee.net> - 2021-01-06 15:17 +0000
                Re: Pi power Martin Gregorie <martin@mydomain.invalid> - 2021-01-06 16:05 +0000
                Re: Pi power TimS <timstreater@greenbee.net> - 2021-01-06 16:14 +0000
        Re: Pi power A. Dumas <alexandre@dumas.fr.invalid> - 2021-01-06 12:02 +0000
      Re: Pi power Andy Burns <usenet@andyburns.uk> - 2021-01-06 10:55 +0000
        Re: Pi power Chris Green <cl@isbd.net> - 2021-01-06 11:19 +0000
          Re: Pi power Axel Berger <Spam@Berger-Odenthal.De> - 2021-01-06 13:13 +0100
            Re: Pi power Ahem A Rivet's Shot <steveo@eircom.net> - 2021-01-06 12:47 +0000
              Re: Pi power Joe <joe@jretrading.com> - 2021-01-06 20:20 +0000
                Re: Pi power druck <news@druck.org.uk> - 2021-01-06 20:43 +0000
              Re: Pi power Eli the Bearded <*@eli.users.panix.com> - 2021-01-06 23:08 +0000
                Re: Pi power Ahem A Rivet's Shot <steveo@eircom.net> - 2021-01-07 07:40 +0000
                Re: Pi power Axel Berger <Spam@Berger-Odenthal.De> - 2021-01-07 09:08 +0100
                Re: Pi power John Aldridge <jpsa@cantab.net> - 2021-01-07 09:20 +0000
                Re: Pi power The Natural Philosopher <tnp@invalid.invalid> - 2021-01-07 08:16 +0000
                Re: Pi power druck <news@druck.org.uk> - 2021-01-07 09:53 +0000
                Re: Pi power Martin Gregorie <martin@mydomain.invalid> - 2021-01-07 12:40 +0000
                Re: Pi power Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-01-07 19:29 +0000
                Re: Pi power David Higton <dave@davehigton.me.uk> - 2021-01-07 21:05 +0000
          Re: Pi power Ahem A Rivet's Shot <steveo@eircom.net> - 2021-01-06 12:39 +0000
            Re: Pi power Chris Green <cl@isbd.net> - 2021-01-06 17:04 +0000
              Re: Pi power Theo <theom+news@chiark.greenend.org.uk> - 2021-01-06 18:02 +0000
          Re: Pi power Theo <theom+news@chiark.greenend.org.uk> - 2021-01-06 16:41 +0000
            Re: Pi power Martin Gregorie <martin@mydomain.invalid> - 2021-01-06 17:04 +0000
              Re: Pi power druck <news@druck.org.uk> - 2021-01-06 18:50 +0000
                Re: Pi power Martin Gregorie <martin@mydomain.invalid> - 2021-01-06 20:39 +0000
            Re: Pi power TimS <timstreater@greenbee.net> - 2021-01-06 18:58 +0000
  Re: Pi power Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2021-01-08 22:33 -0500
    Re: Pi power Anssi Saari <as@sci.fi> - 2021-01-09 12:03 +0200

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