[arm-allstar] messages every 30s.

[Jim Darrough]

Oh gosh, I hope Doug doesn't get upset with my comment, but that does 
NOT surprise me. I have taken apart a few wal warts, and they have 
minimal components, maybe one diode (1/2 wave rectification) and are 
seriously unfiltered.

I have played with the idea of building my own using adjustable 3-tabe 
regulators and decent full wave bridges, RFI filtration, etc. Some day 
maybe.

But now Allstar and Hamvoip via the Pi is taking up a lot of time.

Great system.

73 Jim KI7AY


On 05/17/2018 08:22 AM, "Rick Wilson via arm-allstar" wrote:
> I got AC hum on 3 different wall warts.  I finally switched to a voltage adapter with a mini-usb cable on the same power supply as the radio.  Our 3 repeater system has these on all of them.
>
> Rick, wd5etd
>
>
>
>
>> On May 16, 2018, at 9:03 PM, Jim Darrough via arm-allstar <arm-allstar at hamvoip.org> wrote:
>>
>> My Pi did the same thing until I replaced the power supply.
>>
>> 73 KI7AY
>>
>>
>> On 05/16/2018 06:13 PM, "Joe Puma via arm-allstar" wrote:
>>> I see this too not every 30 seconds though.  I’ve seen with a 5v 15amp psu also. This under-voltage can be seen in the Raspian releases as a lighting bolt in the upper right corner.
>>>
>>> Joe
>>> KD2NFC
>>>
>>> Sent from my iPhone
>>>
>>>> On May 16, 2018, at 4:52 PM, Doug Crompton via arm-allstar <arm-allstar at hamvoip.org> wrote:
>>>>
>>>> Lito,
>>>>
>>>> This is possibly a real message indicating power supply issues. Have you
>>>> tried another supply?
>>>>
>>>> See -
>>>>
>>>> https://www.raspberrypi.org/forums/viewtopic.php?t=210914
>>>>
>>>> https://github.com/raspberrypi/linux/issues/2512
>>>>
>>>> Power supply issues are a real problem with Pi's and responsible for many
>>>> of the issues we see where flakiness occurs.
>>>>
>>>>
>>>> *73 Doug*
>>>>
>>>> *WA3DSP*
>>>>
>>>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>>>>
>>>>
>>>> On Wed, May 16, 2018 at 4:39 PM, "Roselito de los Reyes via arm-allstar" <
>>>> arm-allstar at hamvoip.org> wrote:
>>>>
>>>>> Hello David,
>>>>>
>>>>> I just downloaded the newest release but I am spammed with a voltage
>>>>> normalised (0x00000000) and under-voltage detected! (0x00050005) messages
>>>>> every 30s.
>>>>>
>>>>> I tried adding avoid_warnings=1 in /boot/config.txt but to no avail.
>>>>>
>>>>> 73,
>>>>>
>>>>> Lito de WI6Y
>>>>> _______________________________________________
>>>>>
>>>>> arm-allstar mailing list
>>>>> arm-allstar at hamvoip.org
>>>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>>>
>>>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>>>>>
>>>> _______________________________________________
>>>>
>>>> arm-allstar mailing list
>>>> arm-allstar at hamvoip.org
>>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>>
>>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>>> _______________________________________________
>>>
>>> arm-allstar mailing list
>>> arm-allstar at hamvoip.org
>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>
>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>> -- 
>> 73 Jim
>> La ciruela de Panamá
>>
>> _______________________________________________
>>
>> arm-allstar mailing list
>> arm-allstar at hamvoip.org
>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>
>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
> _______________________________________________
>
> arm-allstar mailing list
> arm-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>
> Visit the BBB and RPi2/3 web page - http://hamvoip.org

-- 
73 Jim
La ciruela de Panamá