Questions tagged [power-supply]
The methods for powering the Raspberry Pi (typically via its micro-USB connection.)
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Possible to Power an IP camera from Pi
I have a raspberry pi 3 b+.
I was thinking instead of using an USB camera or the camera module would it be possible to connect an IP camera?
The raspberry pi will be powered by a battery and the pi ...
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1answer
10 views
Power Raspberry Pi using GPIO Pins and a 10A supply with 7805
I am currently working on a project where i have micro-controller,stepper drivers etc all powered through a single 12v 10a power supply. I was planning to use the same supply to power the raspberry pi ...
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0answers
21 views
Pi 3B, 2 Servos and 2 Ultrasonic sensors. Power Supply needed
So right now I have the following items in front of me:
Raspberry Pi Model 3B
The power cable / plug that comes with it
2x MG995 Servo motors (<- open short compact datasheet for voltage info)
2x ...
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1answer
32 views
External 12v power supply to relay
I have a 12v 8 channel relay https://www.modmypi.com/raspberry-pi/relays-and-home-automation-1032/relay-boards-1033/8-channel-12v-relay-module which I want to connect to my RPi3 so I need an external ...
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1answer
32 views
Using a molex powered usb panel to power multiple pi's
I have been looking into multiple ways to power numerous rapsberry pi's from one power source.
I am not an electrical engineer and as such some methods I have researched online are less than ideal, ...
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1answer
47 views
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 ...
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2answers
33 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 ...
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2answers
60 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.
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2answers
43 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
28 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
51 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
86 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
31 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
71 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
20 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
77 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 ...
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2answers
90 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
45 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
137 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+).
...
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1answer
45 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 ...
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1answer
104 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
171 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, ...
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2answers
101 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 ...
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2answers
167 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 ...
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1answer
73 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
30 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 ...
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2answers
226 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
140 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 ...
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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
717 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 ...
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1answer
56 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
97 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
114 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 (...
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1answer
193 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
594 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
743 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
328 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
62 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
74 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
658 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.
...
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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 ...
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2answers
54 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 ...
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1answer
286 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, ...
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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 ...
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2answers
82 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
70 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
597 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
67 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 ...
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1answer
81 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 ...
