#如何使用wd my passport for mac full#

If we assume that means that the Pi itself never draws more than 2.5A minus 1.2A for USB, that leaves 1.3A for the Pi plus GPIO header powered accessories. The USB is current limited to 1.2A and the Pi itself has a polyfuse which limits current to 2.6A

#如何使用wd my passport for mac full#

So yes, the addition of the HDD may have taken it over the limit, but in this case there's no way to tell if that limit is the full 2.5A it says it is, or some artifically lower number due to poor voltage regulation or thin power wires.Īs proof of this, some simple mathematics is all you need. There is no proof that supply actually supplies 2.5A, it might only supply 1A and have 2.5A written on it. Until I connect the HDD Drive (WD My Passport) that the Lightning Bolt appears. bCbA7NP1N2Īnd everything work fine (I think) even I am using a case with small fan in GPIO. アイトランク iTrunk Raspberry Pi 3用USB電源アダプター PSE認証 5V 2.5A Raspberry Pi 3 Model B/B+ Raspberry Pi 2 Model B Raspberry Pi Model B+ B Plus適用. I'm currently purchased a Power supply 5V/2A in Amazon :

The Official PSU is extremely high quality: What type of Power Supply, is it in fact a Phone / Tablet Charger ? So my question is if I can solve this problem by just connect my USB-connect device into a self-powered USB hub? Does the power from USB hub can effect to my Pi power? I found that it was my Pi has lack of power. The screen show up a little 'Yellow Lightning ' at the top right of the screen.

HDMI port used for Screen ( which has equipped its power supply).Īnd the problem is when I turn on My Pi. Recently I just set up my Pi with 5V/ 2.5A Power Supply.Ĥ. Im a beginner at IT and also at Raspberry Pi.