Linked Questions

8
votes
2answers
14k views

How to make a high powered USB hard drive work with the Pi?

I tried directly connecting my WD My Passport Ultra 1TB USB hard drive to the Pi but it draws too much power, and it doesn't even run the OS. Is there any way to connect it without damaging the Pi?
2
votes
1answer
946 views

How to switch the current draw to 1.2A instead of 600mA?

On the website of raspberry pi 2 I read that the current draw for usb ports can be switched from 600mA to 1.2A. I searched around and I couldn't find anything that shows how to do that, I went to ...
1
vote
2answers
684 views

USB HDD on Raspberry Pi 2 Model B? [duplicate]

I have a Raspberry Pi 2 Model B and a 2,5 inch HDD that I want to connect via USB. The HDD also powers itself over USB. Does the Raspberry Pi 2 Model B provide enough power? Can I safely run the HDD ...
0
votes
0answers
822 views

How to deal with the error “device descriptor read/64, error -32”?

I'm using a Raspberry Pi 3 model B+ together with a Waveshare touch screen model 7inch HDMI LCD (C) which claims to be “low consumption,” although gives no precise amperage of the device. Anyway, ...
1
vote
1answer
637 views

Hostapd stops working after 3G modem restart

I'm trying to turn my Pi into an access point with an Edimax wifi dongle and a Huawai 3G modem for Internet access. Generally, this is working well. But under load the 3G modem sometimes disconnects. ...
1
vote
1answer
210 views

Max safe current and power requirements for Raspberry Pi 2 Model B?

I have a few questions to ask. I have referred to many other similar questions, but couldn't get a straight forward answer to my questions. Current situation: I just recently bought a Canakit ...
1
vote
1answer
438 views

Max current from a single USB port

I am not very good in electronics and I am a bit confused. I've read some articles which say that maximum TOTAL current for the 4 USB ports is 1.2A. But how much can a SINGLE USB port provide?
0
votes
1answer
263 views

Does PI go to sleep or does it stop supply to USB if the drive is not being used for some time?

I have a 80G hard disk attached to my PI2B and I have a couple of software running on it. I noticed that sometimes the disk becomes inaccessible and I would need to unmount and remount the partitions ...
1
vote
1answer
148 views

Do I need powered USB hub for WD External Drive?

I just got a WD MyPassport external drive, that is solely powered via USB (there are no other plugs). I have seen in various places that a powered USB port is suggested for the RPi, but I can't quite ...
1
vote
0answers
213 views

Powering RPi3, 3G Dongle, DC Motor HAT and DC Motors

I've got a setup where I power RPi, 3G dongle from one power source (USB Hub powered from 5V 2A) and a DC Motor HAT and DC Motors (2 small car mirror motors) from a 12V 2A supply. I checked the motors ...