Questions tagged [power-supply]
The methods for powering the Raspberry Pi (typically via its micro-USB connection.)
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1answer
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Can I give power 5V 2.1A to Raspberry Pi 3 B+?
I have already taken RPI 3 B + from post office and now I want start RPI 3 B +. But I'm seeing that I haven't got 5V 2.5A Power Block. So, I have a question.
Can I give power 5V 2.1A to Raspberry Pi 3 ...
1
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2answers
32 views
Single power supply to RP3 and Adafruit Motor Hat
I have a project that includes a RP3 and an Adafruit motor hat (https://www.adafruit.com/product/2348), with 2 5v stepper motors (https://www.adafruit.com/product/858).
In the guide they state the ...
0
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2answers
41 views
Raspberry Pi 3 B+ shuts down randomly [closed]
My RPi 3 B+ shuts down randomly.
I have a official power supply and a 32 GB Toshiba microSDHC class 4 card.
I'm using it as a host for a Discord bot.
0
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2answers
33 views
Powering Raspberry Pi and Arduino
I'm curious about powering Arduino Uno, Raspberry pi 3 b+ and motor driver L298n. I've got 11.1V / 2200 maH li-po battery. Firstly connected battery to motor driver, then feeded arduino from 5V out ...
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0answers
24 views
About Raspberry Pi Power and Self powered USB hub device
I'm a beginner at IT and also at Raspberry Pi.
Recently I just set up my Pi with 5V/ 2.5A Power Supply.
I'm now using my Pi with:
1. Case with a 5V fan.
2. Mouse.
3. Keyboard.
4. ...
2
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1answer
45 views
12V-to5V (3A) converter for car fuse box
I'm planning to setup a RetroPi (using Raspberry Pi 3) in my car with a direct connection to the fuse box with this 12V-to-5V (3A) converter module. The power requirements on the Raspberry calls for 5....
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0answers
61 views
How to connect real car steering wheel to Raspberry Pi?
I'm a real car enthusiast and in order to learn how car electronics work (get knowledge about CAN and LIN) I decided to create little automotive project. I've picked Automotive Grade Linux for my ...
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1answer
30 views
Power from Pi 3 to 7" display
Does the 3v3 carried in the FFC cable at the display header of the Pi 3 B+ supply power to the 7" touch display? Or do I need to supply power at J1.1 and .5? If so this power can be pulled from the ...
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0answers
33 views
How to determine power draw (lightning bolt question)
I have the Raspberry Pi 3 to use for RetroPie and I was plugging my cable into the TV and getting this thunder bolt symbol and eventually I started up and my whole install was corrupted. I discovered ...
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0answers
15 views
Several relays power consumption on RPi Zero
I'm making a element, where my RPi zero turns on/off 4 relays (REES52 Optocoupler 4 Channel 5V Relay Module).
I want my circuit to work constantly for as long as possible (ideally for several years) ...
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2answers
59 views
Powering Raspberry Pi using DC Power supply
I am trying to power my raspberry pi model 3 model b+ using this DC power supply. According to the official FAQ the power requirements seems suitable. But, I am not how to use the power supply to ...
0
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0answers
36 views
Raspberry pi zero damaged by USB hub/phone
Raspberry pi zero w connected to 1.8A power supply.
Connected HDMI monitor.
Connected USB 3.0 active hub (without its own power supply)
In hub: Logitech keyboard receiver and LG G6 in USB tethering ...
0
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2answers
65 views
Is it safe to use this battery with the Raspberry Pi Zero?
I have two questions actually:
1) is it safe to use this battery and these wires with the raspberry pi zero?
2) if yes, where do i solder the highlighted (red square) ends to the zero board?
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1answer
39 views
Can i use 2.5Amp on Raspberrypi 3B GPIO 5v pins? [duplicate]
I'm thinking of using a 5V and 2.5Amp power supply to power up my Raspberrypi 3 model B over it's GPIO 5V PIN. Is it safe to use 5V 2A IN GPIO PIN?
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1answer
131 views
How to power Raspberry Pi from a lab power supply via USB?
How can a Raspberry Pi be powered from a lab power supply via USB?
I have a lab power supply that can easily output 5 V/4 A and I would like
to use it to power a Raspberry Pi (version 3B and 3B+).
...
0
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1answer
44 views
Prevent Pi Zero W from turning on after receiving power
My Pi Zero is powered by a small ATX PC power supply that is also powering a few other components: projector, audio amplifier. I'm using the gpio-shutdown device tree overlay to add a power button on ...
0
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1answer
82 views
accidently reversed polarity power to Raspberry Pi 3B+
I was trying to make a custom power source to supply power to the micro usb port on the Pi B+ and I reversed the + and - by accident and then smelled something like burned plastic. The SD card doesn'...
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1answer
170 views
Pi shuts down every day at 11:23 PM
I have a Pi Zero W running Raspbian Stretch Lite (June 2018). I'm using it to turn the crank on an automatic cat feeder. I've barely changed the base configuration: apt-get-installed git and samba, ...
0
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2answers
71 views
Overcurrent protection
Are there any over-current protection measures on RPis? Either on GPIO or power supply pins.
Are there differences between versions?
Unfortunately two of my 3b+ boards are dead now because of brief ...
0
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2answers
106 views
Powering Motor with Raspberry pi and h-bridge
I am trying to control a 3-6 volt motor with a raspberry pi and h-bridge. I have a separate power source for my pi and my motors.
I have tried a 6v, 9v, and 12v power source. However, the motor ...
0
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1answer
71 views
Is it okay to power the Pi Touchscreen by plugging into the Pi?
I have the official raspberry Pi 7 inch touch screen, and I have mounted to it a Pi 2. Lately I have been using it and I have been plugging the power into the Pi itself. I however recently remember ...
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0answers
26 views
Portable Raspberry for Recalbox
Today is the day where the beta of Recalbox for 3b+ is out.
For the moment, it's working. I want to know how to make my RBerry portable, so that I can play with it everywhere.
I'm new to all that ...
0
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2answers
166 views
Powering Raspberry Pi 3 with 5v/3A Buck converter
I am using Raspberry Pi 3 with Raspbian OS. I will be powering my Pi 3 board from a output of 24V battery. So I will be using a 5V/3A buck converter. I will be connecting my GPS, Pi camera and 4G ...
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1answer
100 views
Monitor Displaying “No Signal” with RetroPie at Powerup
I'm in the process of building a game console using RetroPie and a Raspberry Pi 3. I'm connecting the Pi to a monitor via HDMI, and I'm powering both using a power strip with an on/off switch, to ...
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1answer
21 views
wifi - WiFi sometimes does not work
When I powered the Raspberry Pi 3B on (I use Gentoo), WiFi was working. After reboot, it stopped working, both ip link list and ifconfig commands do not list it (they do if WiFi is working).
I am ...
0
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1answer
38 views
Using Raspberry in Nanosatellite [closed]
I want to use raspberry pi in space projects like cubesats. I worry about effects of space radiation on raspberry.Is this possible to do?or i need to choose another board or something like that?
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2answers
486 views
safeness of using 18650 + battery casing for raspberry pi
I am planning to use a 18650 battery and a casing like below to run a raspberry pi zero W outside on my watch, but I hear bad stories about lithium ion batteries, like 18650, exploding on a regular ...
0
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1answer
55 views
Automatically bring back the Pi while it shutdown
I've experienced several P3B+ automtically shutdown cases, by skiping the analysis of the root cause, I wonder what is the solution to automatically bring back the Pi again while it shutdown, I mean ...
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2answers
87 views
underVolt shows but DC meter +5
volt and current measurement dongle from power supply shows 5.00 volts within 4% and current is less than 500 ma but lightning bolt showa undervoltage. WHY?
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2answers
95 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 (...
1
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1answer
170 views
Uninterruptible Power supply for PI 2 B+
Will it be possible to provide short term power to the B2+ model with the following setup?
5V 2A 44W Uninterrupted Power Supply Alarm System Security Camera Dedicated Backup Power Supply 6-10 Hours
...
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1answer
515 views
RPi 3 B+ under voltage with Retropie
I recently acquired a brand new RPi Model 3 B+ and decided to try and install Retropie (v4.4) on it. I managed it to boot properly and I got a PS3 controller to work via USB.
The problem is that I ...
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3answers
602 views
Powering RPI 3 and using relay from same source
I want to build something of a smart home device such as a smart switch /outlet for example that controls something like a light. However, I don't know what the wiring should be Like, if it's possible....
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2answers
245 views
Rpi Zero W ( not Rpi 2,3 ) - power consumption, idle and GPIO operate [duplicate]
Spec wise - all raspberries require 5v 2A input.
My project needs multiple remote rpi’s to send periodical status of GPIO using python script ( runs on Raspbian Strech Lite ).
Is a 2A a must ?
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1answer
51 views
Official power supply not working (no LEDs)
I just bought a new Raspberry Pi 3 Model B+ with the official power supply. When inserted, it does absolutely nothing. None of the LEDs light up, with or without an SD card.
However, a cheap phone ...
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1answer
72 views
Power LED blinks at first boot, but fine during second boot
I have a Raspberry Pi 3 Model B+. When I turn it on, it works fine but the red PWR LED keeps blinking. Everything else works fine, with no issues, but when I power it off and turn it on again, then it ...
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1answer
510 views
Can I provide 1A, 5V to Raspberry Pi Zero W
I want to design a Power Supply Unit(PSU) for Raspbery Pi Zero W. I will have a camera https://www.raspberrypi.org/products/camera-module-v2 connected and running, two relays and few gpio's running.
...
0
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0answers
17 views
Turn on WittyPi via ligth
I want to use my Pi outdoors for measurement. I measure the temperature and some other things periodically via the wittyPi. But I also want to make the wittyPi turn on when light hits a solar panel ...
0
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2answers
48 views
Is there a way to control the power output from raspberry pi3?
I'm new to electronics and I'm thinking of building a small racing car. I have this toy car that has a DC motor and a servo motor to control the direction of the car. My plan is to write some software ...
0
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1answer
201 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, ...
0
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0answers
14 views
Bootup problem, freezing Pi, power problem with IR camera or USB
When I bootup my py with latest version of raspbian with only one IR camera my Pi wont bootup. The red led blinks red. This same PI, Img, and SDCard were working weeks with same camera + nova PM ...
0
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2answers
74 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 ...
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0answers
64 views
Raspberry Pi external power supply for sensors
I am working on a project that involves a Raspberry Pi 3B+ and multiple sensors (temp/humid DHT22, pH probe and EC probe from atlas scientific, cameras....).
I am trying to figure out how to power my ...
0
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0answers
450 views
lightning bolt on first powerup
I purchased the CANAKIT Raspberry pi with the Canakit power supply. I purchased the pre-loaded microsd card.
On first power up I got the rainbow and the lightning bolt (no menu)
I've tried 3 alternate ...
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0answers
54 views
Hardware setup for LED with external power supply
I am looking for help to use a raspberry pi 3 as a multiple LED switcher.
The setup should be:
6 LEDs at 3W, 9.6V and 300mA (each!)
a external power supply for the LEDs
a breadboard to put everything ...
1
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1answer
61 views
Supply 3.3V sensors using GPIO pins
I am using a RPI zero to receive some data from sensors.
All these sensors use 3.3V supply.
A teacher gave the idea of using the GPIO pins(not the VCC's itself) to supply power to the sensors, so ...
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4answers
1k views
Is there a code for the power LED blinking (I've noticed a pattern) or is it simply “blinking” and that's it?
I recently got my first Raspberry Pi (model 3 B+) plus a starter kit from Adafruit, and I have encountered my first challenge: boot the darn thing. The starter kit came with a micro SD with NOOBs ...
0
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1answer
51 views
Supply 5v to peripheral using solder pads and not GPIO?
This seems like a simple enough question but it hasn't been easy to find an answer!
I have a Pi3 (with recommended PSU), official screen, official camera and I've now added the respeaker 2-mics Pi ...
0
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0answers
27 views
Power supply for prototyping with Raspberry PI and motor
I'm going to be working on controlling a motor from the RPI board. The motor needs 12V. I'm thinking of buying a single power supply, to supply both the RPI and the motor with during prototyping. For ...
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2answers
4k views
Raspberry Pi 3 Model B+ Stable Red Light When Powered Up
I recently got a new Raspberry Pi 3 Model B+ and I managed to flash the OS. But the problem seems to happen when I try to boot it. I do not have the official adapter, but I tried the following:
with ...
