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Raspberrypi 0

Posted: Tue Jan 10, 2017 2:38 pm
by nicsaliotta
Can i use a Micro USB power supply of a smarthpone to give power to the raspberry pi0?

Re: Raspberrypi 0

Posted: Tue Jan 10, 2017 2:40 pm
by RaTTuS
if it outputs power then possibly yes - YMMV - try it and report back

Re: Raspberrypi 0

Posted: Tue Jan 10, 2017 2:53 pm
by nicsaliotta
i'll recieve the pi0 in these days. They sent me yesterday. When i'll recieve i can tell you :)

It's the same power supply of raspberrypi3? it needs 3V 5V? 12V? or needs different one?

Re: Raspberrypi 0

Posted: Tue Jan 10, 2017 3:13 pm
by SteveSpencer
Same voltage (5V), but generally consumes less current.

Re: Raspberrypi 0

Posted: Tue Jan 10, 2017 4:16 pm
by W. H. Heydt
nicsaliotta wrote:Can i use a Micro USB power supply of a smarthpone to give power to the raspberry pi0?
The question is a bit vague to me... Do you mean using the microUSB *of* the smartphone (that is, powering the Pi 0 from the phone), or a microUSB power supply *for* a smartphone (that is, a phone charger)? If the former, try it and see, though I'm dubious that it would work for very long if it works at all. If the later, sure, unless the charger is a complete and utter piece of trash. The power requirements of the Pi 0 are quite modest.

Re: Raspberrypi 0

Posted: Tue Jan 10, 2017 4:23 pm
by fruitoftheloom

Re: Raspberrypi 0

Posted: Wed Jan 11, 2017 6:32 am
by nicsaliotta
i mean both

Image

and

Image

Re: Raspberrypi 0

Posted: Wed Jan 11, 2017 8:14 am
by RaTTuS
it will need 5V @ <1000mA [I think it will run on <500mA]

Re: Raspberrypi 0

Posted: Wed Jan 11, 2017 8:24 am
by mattmiller
Can i use a Micro USB power supply of a smarthpone to give power to the raspberry pi0?
Yes - either of those will power a PiZero

Re: Raspberrypi 0

Posted: Wed Jan 11, 2017 9:41 am
by FTrevorGowen
nicsaliotta wrote:i mean both
Image
and
Image
mattmiller wrote:
Can i use a Micro USB power supply of a smarthpone to give power to the raspberry pi0?
Yes - either of those will power a PiZero
+1
FWIW, I was using one of my (tested) powerbanks** here:
http://www.cpmspectrepi.uk/raspberry_pi ... ased_Setup
Trev.
** More info here:
http://www.cpmspectrepi.uk/raspberry_pi ... 2FChargers

Re: Raspberrypi 0

Posted: Wed Jan 11, 2017 6:30 pm
by W. H. Heydt
Running a Pi Zero on any mains connected PSU that will deliver the right voltage and enough current, no problem at all. Using a cell phone "power bank" (really a LiPo/Li Ion battery pack), essentially all of these devices are designed to deliver 5v and every one I've seen is rated to supply at least 1A, so yes. The image appears to be a 2.4Ah device.

I have powered a Pi Zero with an attached 3.5" display (Neosec TinyLCD 35) with a 4Ah "pwerbank". It'll run for over 12 hours the way I'm using it.

Re: Raspberrypi 0

Posted: Thu Jan 12, 2017 3:05 am
by geoffr
RaTTuS wrote:it will need 5V @ <1000mA [I think it will run on <500mA]
I've generally seen a Zero with USB Wifi using 200mA or less. That is with the CPU not doing a whole lot of work, however. I expect a 500mA supply should be fine for many purposes.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 11:20 am
by ludo75
I bought a powerbank from http://www.clasohlson.com
5v/1A in and out
Capacity 9.62Wh (~2A)
There's a little button to push to turn it on, when it was almost empty i charged it and at the same time it powered a pi1b+ with LCD-PI32.
The charger wasn't enough for that little project though, it mostly powered the rpi without charging much or not at all, BUT i could unplug and move rpi and the plug the charger into an outlet somewhere else.
Try different powerbanks and you'll find one that works.
And an usb-charger of 5v/2A should be able to power and charge

For the point: rpi1 B+ can be powered during a blackout, and powered for 3 hours, more than adequate for the swedish boonies.

More tests for me, and i'll try to post them here.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 12:06 pm
by ludo75
And a 12v75A car battery would run an idle rpi3 for two weeks, at 2,5 watts.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 1:35 pm
by davidcoton
ludo75 wrote:And a 12v75A car battery would run an idle rpi3 for two weeks, at 2,5 watts.
I think that's pushing it a bit. 2.5W (0.5A) might be a bit low for a Pi3B, even idle. Might be OK with WiFi and Bluetooth off, but then you wouldn't use a Pi3B. And presumably it needs to do some work sometime.
And secondly the Pi needs 5V, so you need a converter, so there is a loss (10% or so).
7-10 days is a safer assumption, then it's a nice surprise when it lasts 2 weeks.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 2:52 pm
by W. H. Heydt
davidcoton wrote:
ludo75 wrote:And a 12v75A car battery would run an idle rpi3 for two weeks, at 2,5 watts.
I think that's pushing it a bit. 2.5W (0.5A) might be a bit low for a Pi3B, even idle. Might be OK with WiFi and Bluetooth off, but then you wouldn't use a Pi3B. And presumably it needs to do some work sometime.
And secondly the Pi needs 5V, so you need a converter, so there is a loss (10% or so).
7-10 days is a safer assumption, then it's a nice surprise when it lasts 2 weeks.
Since the thread is about the Pi Zero...

12V, 75Ah = 900Wh. Pi Zero will *easily* run on 2.5W (I run a Pi Zero with a 3.5" LCD and the total requirement is 1W). So, rounding up to 3W for conversion losses, gives a 300h run time. Since one week is 168h, a run time of 2 weeks for a Pi Zero is not unreasoable, since it is unlikely to need that much power.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 4:11 pm
by davidcoton
W. H. Heydt wrote: Since the thread is about the Pi Zero...
ludo75 wrote:And a 12v75A car battery would run an idle rpi3 for two weeks
My emphasis.

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 4:39 pm
by W. H. Heydt
davidcoton wrote:
W. H. Heydt wrote: Since the thread is about the Pi Zero...
ludo75 wrote:And a 12v75A car battery would run an idle rpi3 for two weeks
My emphasis.
Yeah...I saw that, but the subject line is "Raspberrypi 0".

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 6:07 pm
by ludo75
by comparison

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 6:23 pm
by ludo75
Since some of you think i'm wasting your time, this thread is not about rpi0, but running a rpi0 off a powerbank power supply source.
By comparison, running an idle rpi3 at 2,5 watts (mesured with an 220volts outlet mesuring thing) it may not be as accurate as you want it to be, but mesuring with that kind of device showing 2-3 watts per hour, etc etc AND another etc, with alot of blah blah's.

If i were to run an rpi3 with four usb-sticks mdadm'ed in a certain fashion and tell you how much uptime i'll get,
would you complaining, "women", be happy happy joy joy if i did so?

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 6:30 pm
by fruitoftheloom
ludo75 wrote:Since some of you think i'm wasting your time, this thread is not about rpi0, but running a rpi0 off a powerbank power supply source.
By comparison, running an idle rpi3 at 2,5 watts (mesured with an 220volts outlet mesuring thing) it may not be as accurate as you want it to be, but mesuring with that kind of device showing 2-3 watts per hour, etc etc AND another etc, with alot of blah blah's.

If i were to run an rpi3 with four usb-sticks mdadm'ed in a certain fashion and tell you how much uptime i'll get,
would you complaining, "women", be happy happy joy joy if i did so?
I was under the impression that this post was opened by by nicsaliotta ยป Tue Jan 10, 2017 2:38 pm

Can i use a Micro USB power supply of a smarthpone to give power to the raspberry pi0?,


..................seems it was hijacked and gone off into another subject !!!!!

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 6:37 pm
by ludo75
And i am under the impression that all UK citizens are women.
I am home with two chickenpox kids, what's your excuse this friday?

Re: Raspberrypi 0

Posted: Fri Jan 13, 2017 6:39 pm
by jamesh
Wise words from a mod. Be nice to each other.