It depends what your code is doing. An active but not busy Pi3B+ with little peripheral load will run on less than 1A. But a heavily loaded Pi3B+ will use up to 1A3. You will have troubles testing your code if the load rises even momentarily -- it will be hard to tell if it is your code or the PSU causing problems. That is the last thing you want whwn rushing to meet your project deadline. You will also find that not all "5V 1A" PSUs maintain 5V at 1A load. The recommended PSU is 5V1 2A5 for a reason.Pinto80 wrote: I will use a power supply of 5V 1A for my raspberry and I would like to know if it is enough?
That's 500mA at idle, for a bare board. It's not that hard to get a Pi 3B+ over an AMP (it can pull nearly and AMP just opening the web browser).
Yes. You must design for worst case conditions, which is peak load, not just active load. Granted that without knowing the particular code, load, environment and peripherals for a particular Pi then we don't know the actual peak load, so in giving advice we must take the standard worst case figure of 1A3 (recommended PSU minus max USB, which actually may not be the worst case, the figure for a Pi3B+ is missing from the FAQ, the figure for Pi3B is 1A34). In extreme cases even the "official" PSU may not be adequate, but in this case we are told there are no USB peripherals "for now".
Although my post seems to have been removed, the subsequent answers make it quite clear why I said what I did.Imperf3kt wrote: ↑Wed Feb 06, 2019 9:58 pmWhat advice us there in "potentially"?
I stated it's possible, nothing more.
Yes, I've misworded some of my replies in the past. I'm more careful with my wording now, if you've noticed. I left out all detail and simply said "it can be done".
Having successfully done so myself, I see no reason not to.
According to the documentation (not my 'advice'), the Pi3b+ typically uses 500mA, which is 0.5A as far as I'm aware.
Grade school level mathematics tells me that 0.5 is less than 1.0, so it should work.
Is there something I have misunderstood or overlooked?