All Questions
17 questions
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21
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Recomended power cable for Rpi 3B+ and official 7" touchscreen [closed]
I have my pi 3b running picore player, with an allo digi-one hat and the official 7" touchscreen.
I have tried using the "official" power supply (x2) individually to the touchscreen and ...
- 1
2
votes
2
answers
3k
views
Does Raspberry Pi 3B have polyfuse? Can USB ports blow polyfuse? [duplicate]
Does Raspberry Pi 3b have polyfuse? If it does, under what conditions can it be 'blown'? I suspect my RPi 3b polyfuse to be blown, but I don't know what's causing it. I'm using an external HDD for ...
- 29
1
vote
2
answers
578
views
How voltage tolerant is the RPi 3 A+ micro-B USB power connection? [duplicate]
I've been reading about power supply requirements for RPi and want to learn more about the practical limits in addition to the design limits. What is the power protection circuit (if any) on the micro-...
- 145
0
votes
1
answer
95
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How should I power multiple RPi 3 units from a beefy power supply? [closed]
I have to power 20 Raspberry Pi 3 units from a few 5V 10A power DC power supplies. I have little experience in electronics. The RPis can be up to 1.5m apart from one another. A friend of mine ...
1
vote
2
answers
272
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The best way to connect the 7” touchscreen
I have a pi 3 model B+ and the official raspberry Pi PSU, and the official 7” touch screen. I’m running Raspbian with all the latest updates.
I have connected the display using a USB cable as ...
- 135
12
votes
9
answers
17k
views
What is the highest voltage from the power supply a Raspberry Pi 3 B can handle without getting damaged?
I am using Android things on Raspberry Pi 3 B with a 7-inch touch screen. Currently, I always see a yellow thunder bolt sign on the screen which means that the Raspberry Pi isn't receiving a high ...
- 237
1
vote
0
answers
60
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Long term screw terminal power
Okay so I have a PCA9685 hooked up to a raspberry pi 3 so that it can control multiple servos via a c++ program. Currently, I have them hooked up to a battery pack that has red and black wires as gnd ...
- 11
0
votes
4
answers
1k
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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
-1
votes
2
answers
7k
views
How big of a power supply do I need to power a 3B+?
This chart shows the Pi 3B+ drawing upwards of 5.6 W under load. I know they recommend a 2.5a power supply, but is that an exactly accurate number? Would 2.4a be enough? How powerful of a power supply ...
- 101
1
vote
2
answers
79
views
Raspberry Pi 3 Power Issue
I am using Raspberry Pi 3 Model B for my project purpose. The Pi 3 works fine when it is powered through a 5V/2A charger and I am able to use the inbuilt Bluetooth and Wifi using it, but when I try to ...
- 11
2
votes
3
answers
4k
views
How many MAX7219 8x8 can a Raspberry Pi 3 power?
I'm trying to figure out how many MAX7219 8x8 LED matrix can a Raspberry Pi 3 handle without the need of external power.
I would like to connect an array of 8 but I suspect I'll need an external ...
- 173
1
vote
3
answers
2k
views
Wall plug to usb block to raspberry PI
Would the raspberry pi be damaged or effected at all if I simply took a usb block that you would use for a phone plugged it into the wall and used that for the power with a random micro usb cable?
- 11
0
votes
1
answer
3k
views
Can I power a RPI3 from a USB-C 3A power supply and a USB-C to Micro adapter?
I'm a little confused by the power standards. as far as I can tell, USB PD (power delivery) specifies a maximum of 2.1A.
The RPI3 requires recommends 2.5A, 0.4 more than the spec. Canakit's power ...
- 103
9
votes
5
answers
9k
views
Does the Raspberry Pi 3 regulate the voltage on its 5V pins?
I need to supply 5v analog power to an adc. I am supplying the pi with Li-ion batteries, so the voltage falls over time, but does remain within range of the pi's required input.
If the input voltage ...
- 99
0
votes
2
answers
2k
views
Ok to use 2 port USB Power adapter?
I recently bought a RPi 3 but got a concern with its reliable operation in relation to the power source.
A store near me has something like this but it has only two ports - http://www.amazon.in/...
- 141
4
votes
1
answer
19k
views
Can I power a Raspberry Pi 3 with a Smart TV's USB-Port?
We use a Raspberry Pi to display infos on a TV. The content is more or less HTML with some Animations. Currently we use a Pi2 and the power does not seem to be a problem. Recently we came up with the ...
- 51
50
votes
2
answers
117k
views
Raspberry Pi 3 vs Pi 2 power consumption and heat dissipation
I've seen the announcement of the new Raspberry 3 but didn't find any info regarding power consumption and heating.
A 1.2 Ghz 64-bit CPU is great but does it draw a lot more power? Shall heat be an ...
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