Linked Questions
155 questions linked to/from Raspberry Pi Power Limitations
0
votes
4
answers
1k
views
Power Requirement for Pi 3
I have a Raspberry Pi 3 Model B, and I wish to make a tablet with it. I am using the WaveShare 7inch touchscreen, the pi camera V1, a USB hub and an external CD/DVD drive. But when I got everything ...
- 19
0
votes
2
answers
2k
views
Powering Raspberry PI Zero W using IC 7805 Voltage Regulator
I want to know if its possible to power PI zero w using 7805 voltage regulator. Max current rating of 7805 is 1A. What is the max consumption of PI zero W?
Would it require more than 1A of current? I ...
- 1
2
votes
1
answer
2k
views
No power on Pi-3 USB ports after 2 succesful booting
First time on the Raspberry Pi family, I just unboxed my Pi 3 model B with two successful boots after installing Raspbian.
Later I tried to boot again and I got a yellow flash symbol at the left side ...
- 156
2
votes
1
answer
2k
views
RPi model 2 - USB ports receive no power
The USB ports on my Raspberry Pi 2 model B V1.1 do not receive any power. I measured the USB pins with a multi-meter, which should have 5V, but have none.
I tried different power supplies, which work ...
-1
votes
1
answer
2k
views
GPIO solution to power Pi [closed]
Looking for a GPIO solution to power a Pi 3 B+. Basically, trying to bypass the Pi micro USB connector.
Also, any suggestions on hardware to build a compact, inverted, USB male right-angle ribbon ...
1
vote
2
answers
676
views
Lots of LEDs in a chain
I need to control about 90 LEDs with a Raspberry Pi. I am thinking of doing with with 3 chains of 30 LEDs, so I can control each set of 30 LEDs independently (turn 30 on and off at a time) and change ...
- 19
1
vote
3
answers
2k
views
External HD not spinning up even with max_usb_current=1
I have a Raspberry Pi 3 to which I need to plug an external HD. Such HD is a WD My Passport, which is powered directly from USB and it works perfectly with my laptop.
At the first connection attempt, ...
- 111
-1
votes
1
answer
2k
views
Raspberry Pi Low Power Warning
RPi Model B+
Raspbian 7.11
Kernel 4.14.41-v7+
I've been getting low power errors during startup (lightning bolt), and continue to see them in my syslog.
I have tried multiple different USB cables, ...
- 109
0
votes
2
answers
2k
views
Is it safe to use an unpowered HDMI to VGA converter on Raspberry Pi 3?
I know there are a lot of questions similar to mine and this question may be regarded duplicate, but I believe my question is different. As you may know most of questions are concerned about using an ...
user52010
0
votes
1
answer
2k
views
Raspberry Pi Power Issue with micro usb
I am using a proper voltage and amperage power supply as well. 5V 3A (it is a long cable so needed more amps). Anything less than 3A does not even turn the pi on at all. Please Help!
I currently have ...
1
vote
1
answer
951
views
Using Both +5V GPIO Pins for More Current?
According to this website: https://pinout.xyz/pinout/pin2_5v_power#
The +5V GPIO pins can push up to 1.5A of current, and are attached directly to the Pi's power supply.
My question is, if I use ...
- 193
1
vote
2
answers
2k
views
Seems to work fine, but the red light is sometimes off
I bought a 2.1A USB charger for my Raspberry Pi 3. I wasn't sure if it would work since RPi 3 requires 2.5A, but when I tried, it did.
Then I bought two power banks (2A and 2.1A) to supply power to ...
- 11
2
votes
1
answer
1k
views
Raspberry Pi Shows Low Power Lightning Bolt When Only Using 1 of 3 Amps
My Raspberry Pi 3B+ is running Kali Linux on the official 7" display. I am using an Anker power bank that says: "5V=6A (3A max per port)" in the description. When using the Pi, it constantly shows the ...
- 23
0
votes
2
answers
819
views
Powering a number of Pi from a single bench top power supply [closed]
I'm thinking of investigating the Bitscope Blade QUATTRO to host up to forty boards. Looking at the details each Blade can power the boards off a single supply, which need not be at 5V with up to 3A (...
- 776
1
vote
1
answer
1k
views
Risks of powering short LED strip directly from GPIO
I am trying to understand the simplest ways to power a short LED strip of 30 WS281x lights.
Most of the instructions I’ve found mention using a separate power supply for the LED’s, but is it ...
- 135