power adapter

[cjan]

does safe use this power adapter for Pis?
https://www.kickstarter.com/projects/15 ... -for-every

[drgeoff]

Genuine question or sneaky advertisement?

There are many alternative PSUs that will safely power a RPi for a fraction of the price.

[RaTTuS]

very expensive see for example
https://www.amazon.co.uk/dp/B018QF960A? ... TaJ0YXmSkg
https://www.amazon.co.uk/Charger-Certif ... B073LT14FR

[cjan]

does safe use this power adapter for Pis?
https://www.kickstarter.com/projects/15 ... -for-every

what i ask is does it auto detect output device (pi 5V/2A)?

[RaTTuS]

I would imagine that it would work fine - as the Rpi will only draw what is needed

[W. H. Heydt]

There is some ambiguity as to the capability of the device. One place on the page it gives the capacity as "65W" in another spot is says "60W". Either way, overkill for a Pi (max power for a Pi3B works out to about 12.5W). Since it is using a USB-C connector (I don't know the full spec, but handling 60+W though that seems...unlikely), it is supposed to autodetect voltage requirements. I have no reason to think that a Pi3B--or any other model of Pi--would provide what the device needs to set the voltage correctly.

tl;dr... I wouldn't try it on any Pi I wanted to be sure of being able keep using after the experiment.

[drgeoff]

The micro-USB power input on all RPis has only the two power pins connected. There is no possibility of data communication with a PSU, not even the simple resistors methods as used by eg Apple and Android phones and tablets to inform them that the PSU is able to supply higher current than the typical USB 0.5 amp spec and thus they can safely switch to a higher charging current.

There is no need for or advantage with such "smart" stuff with a RPi. It needs what it needs.

[erhanzeynel]

I have already a pc psu on my desk for my 12V led strip worklights.
I just connected 2 usb ports on 5V rail of that psu. That will be it's psu when my pi 3b arrive from local reseller.
İn my config there is 2 switch connected to psu.

1 on the green wire for control psu.
2 for control worklight.

So only power usb ports will be always powered when psu is on.

My question is am I still need to use powered usb hub for run USB HDD in this configration?
Power will be aplied from miniusb port of raspi.

[drgeoff]

@erhanzeynel

Please do not hijack posts. Your question has nothing to do with this discussion. Start your own new topic.

[davidcoton]

does safe use this power adapter for Pis?
https://www.kickstarter.com/projects/15 ... -for-every

It can supply 3A@5V, according to the blurb. But it would need a custom tip, presumably to "program" the unit to 5V and to convert USB-C to micro-USB for Pi.
If you really want one charger for several different USB-C or supported devices, maybe. But is an additional "official" Pi charger too much to carry? It costs £8 -- £10.