[arm-allstar] UPS Suggestions...

Thu Jul 5 18:53:23 EST 2018

Larry and all,

 The power control boards are available from George, WB3DZZ -
ggianios at verizon.net

*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Thu, Jul 5, 2018 at 7:01 PM, "Larry via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Doug any additional info about the boards as to cost and order point?
>
> Larry - N7FM
>
> On 07/02/2018 07:52 AM, "Doug Crompton via arm-allstar" wrote:
>
>> I want to make everyone aware that in the howto's at hamvoip.org there
>> is a
>> power shutdown circuit that will shutdown
>>   the Pi and any associated radio properly upon power failure and return
>> power when it comes back up. We had boards made to do this which are
>> available unpopulated or wired.
>>
>> https://hamvoip.org/hamradio/power_shutdown_monitor/
>>
>> While this is different than a UPS backup as it does not sustain
>> operation
>> in a power failure it might work in some applications. It was intended for
>> unattended power shutdown in a portable or mobile application.
>> 
>>
>> *73 Doug*
>>
>> *WA3DSP*
>>
>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>>
>>
>>
>> On Mon, Jul 2, 2018 at 10:44 AM, "Sean McCarthy via arm-allstar" <
>> arm-allstar at hamvoip.org> wrote:
>>
>> The script in case anyone else would like to take a look...
>>>
>>> On Mon, Jul 2, 2018 at 10:33 AM Sean McCarthy <smccarthy61 at gmail.com>
>>> wrote:
>>>
>>> Jesse,
>>>>
>>>> What did you need to do to get the script to run? I followed the
>>>> instructions from Alchemy with no luck, but it was written for
>>>>
>>> Rasberrian,
>>>
>>>> so theres that...
>>>>
>>>> Here is my failure:
>>>>
>>>> [root at K8FBI UPS]# sudo python GPIO-shutdown-sample.py
>>>> Traceback (most recent call last):
>>>>    File "GPIO-shutdown-sample.py", line 32, in <module>
>>>>      import RPi.GPIO as GPIO
>>>> ImportError: No module named 'RPi'
>>>> [root at K8FBI UPS]#
>>>>
>>>> Thanks!
>>>>
>>>> On Thu, Jun 28, 2018 at 10:21 PM "Jesse Royall via arm-allstar" <
>>>> arm-allstar at hamvoip.org> wrote:
>>>>
>>>> Sean,
>>>>> Yes it will restart when power is applied and will start charging
>>>>> again.
>>>>> If you do a shutdown then no. You have to remove power and apply it to
>>>>> start back up. But it will start up if the batteries go dead and power
>>>>> comes back on. It has a smart charge built on. You setup a python
>>>>>
>>>> script to
>>>
>>>> monitor the voltage and it will initiate a safe power down before they
>>>>>
>>>> go
>>>
>>>> dead. Then when they go dead it will restart the pi when power is
>>>>>
>>>> applied
>>>
>>>> back to charge the batteries. What sold me is that one power supply to
>>>>> power the ups then since it’s a hat, it supplies the pi with power on
>>>>>
>>>> the
>>>
>>>> header. If the cells go bad you just replace them like AA batteries. You
>>>>> can replace them one at a time without loosing power. You can also
>>>>> stack
>>>>> them to increase the battery time and they have connections to daisy
>>>>>
>>>> them
>>>
>>>> and charge the next ups. Has a reset button on board to force a restart
>>>>> when pressed. The only problem I’ve had is I had one bad cell once and
>>>>>
>>>> it
>>>
>>>> would take the other cell down with it. But the voltage monitor would
>>>>>
>>>> catch
>>>
>>>> it and shut down the pi when unplugged it. The other is when picking up
>>>>>
>>>> the
>>>
>>>> pi, I had a habit of hitting the reset accidentally.
>>>>>
>>>>> I’m was working on a script to watch the voltage and when it sees a
>>>>> voltage drop it tells you via courtesy tone your on battery and
>>>>> possibly
>>>>> speak voltage at intervals. Since the cron job looks for low voltage to
>>>>> safe power down I figure I could use that check to report back to
>>>>>
>>>> allstar
>>>
>>>> and either tattle via tone or voice.
>>>>>
>>>>>
>>>>> Sent from my iPhone
>>>>>
>>>>> On Jun 28, 2018, at 10:11 AM, Sean McCarthy via arm-allstar <
>>>>>>
>>>>> arm-allstar at hamvoip.org> wrote:
>>>>>
>>>>>> I was looking at the pi uptime ups, but it was unclear if it would
>>>>>>
>>>>> restart
>>>>>
>>>>>> the PI unattended. If it does, thats probably the way I'll go...
>>>>>>
>>>>>> On Thu, Jun 28, 2018 at 10:26 AM "Jesse Royall via arm-allstar" <
>>>>>> arm-allstar at hamvoip.org> wrote:
>>>>>>
>>>>>> http://alchemy-power.com/pi-uptime-ups/
>>>>>>>
>>>>>>> This is the one I use. Uses 2 18650 batteries. I get about 10 hrs of
>>>>>>> backup. It’s stackable. Has a reset button on it. Monitors the
>>>>>>>
>>>>>> voltage
>>>
>>>> for
>>>>>
>>>>>> a safe power off. And boots back up when power is applied.
>>>>>>>
>>>>>>> Sent from my iPhone
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>>
>>>>>>> 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
>>>>>
>>>>
>>>> _______________________________________________
>>>
>>> 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
>>
>
> _______________________________________________
>
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> arm-allstar at hamvoip.org
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>
> Visit the BBB and RPi2/3 web page - http://hamvoip.org