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The methods for powering the Raspberry Pi (typically via its micro-USB connection.)

0
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2answers
32 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 ...
1
vote
1answer
9 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 ...
0
votes
1answer
18 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
votes
1answer
33 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?
0
votes
2answers
36 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
votes
1answer
50 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 ...
0
votes
0answers
9 views

UPS using TP4056 and 18650 Batteries [migrated]

I have build this UPS battery supply to power a Raspberry Pi using 18650 batteries,using the TP4056 battery charge controller. The circuit as follows: This is working fine at the moment, but I'm ...
-1
votes
2answers
48 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
56 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
vote
1answer
68 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 ...
1
vote
1answer
162 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 ...
0
votes
3answers
88 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....
0
votes
2answers
42 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 ?
1
vote
1answer
39 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 ...
1
vote
1answer
49 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 ...
0
votes
1answer
99 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
votes
0answers
15 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
votes
2answers
25 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
votes
1answer
45 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
votes
0answers
10 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
votes
2answers
56 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 ...
1
vote
0answers
41 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
votes
0answers
131 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 ...
1
vote
0answers
31 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
vote
1answer
38 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 ...
1
vote
3answers
313 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
votes
1answer
34 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
votes
0answers
25 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 ...
1
vote
2answers
540 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 ...
0
votes
1answer
93 views

usb to eth adapter hot-plug on pi zero w causes reset

RPi zero w v1.3 running RASPBIAN LITE stretch I would like to use an ETH adapter to connect to the pi, but if I plug it before starting the system all works fine, while in case of hot-plug it causes ...
0
votes
0answers
489 views

Raspberry pi 3 b+ and 7" touchscreen over poe

I have an issue, i want to power my pi and 7" touchscreen over poe but the raspberry pi poe hat supplies only 2.5 amp. 7" touchscreen requires 2.5 amp and rpi 3 b+ also requires 2.5 amp so i am in ...
1
vote
0answers
209 views

Powering Raspberry Pi Zero when USB OTG is in device mode

I'm using a Raspberry Pi Zero as a USB device, i.e. it is connected and powered via the OTG USB port to a USB host (in this case another Raspberry Pi, but it could be a PC or any other USB host): ...
0
votes
2answers
139 views

Power Pi Zero with 3.5V?

I have an old, completely analogue phone-entry system in my flat. I'd like to play with using a Pi to interact with it, e.g. sending a notification to my phone when the buzzer rings. I've measured ...
3
votes
3answers
198 views

How to protect Raspberry Pi when powering via 5v pin?

I have reglaurly heard that while it is possible to power the Raspberry Pi via the 5v rail, you do so at your own risk. This is because the rail lacks any of the protections that the USB port has ...
0
votes
1answer
116 views

Raspberry Pi power supply

This has been asked and answered many times, but my specific question is not in the list of results when I search. I have a nominal 2.6A supply here, and it remains stable at 5V up to exactly this ...
2
votes
2answers
162 views

Diagnosing power supply issue

I am running LibreELEC 8.2.4 on a RPi3B. I have attached a USB disk BUFFALO HD-PNTU3 (1To). For the last week the disk has shown some issues which may be related to low power (making some noise while ...
0
votes
1answer
3k views

Raspberry Pi 3B+ won't boot; red LED blinking [duplicate]

I just got a new Raspberry Pi 3B+ with the official case and official power supply. When up, I get a blinking red LED, and on the screen (HDMI) I see a big rainbow-ish square and a lightning symbol in ...
0
votes
0answers
56 views

how to connect power supply from turtlebot 2 to raspberry pi 3?

I am a beginner user of turtlebot and raspberry pi so I need help desperately. I want to power up raspberry pi 3 using turtlebot battery, so as for trials, I used a micro USB wire by cutting it half ...
0
votes
1answer
1k 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 ...
0
votes
1answer
294 views

What is it about the redesign of the new Pi 3 B+ power supply that's discussed here? [closed]

Today's announcement at raspberrypi.org: Raspberry Pi 3 Model B+ On Sale Now at $35 describes several improvements. In the linked YouTube video changes to the power supply are discussed between 04:30 ...
0
votes
0answers
43 views

Power supply or pi card?

I have a pi sd card with raspbian on it. The version of the Raspberry Pi I am using is the Pi B 2 When I tried to boot it up with a normal power supply (micro-usb) it started to boot fine, but it got ...
0
votes
1answer
45 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 ...
1
vote
1answer
25 views

Pi and h-bridge power issue

I am following this tutorial in my attempt to create my first Pi based robot. I am using a Pi 3 model B and I believe I have things wired up correctly however while the H-Bridge is powered up, the Pi ...
0
votes
2answers
303 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 ...
0
votes
0answers
193 views

Disable Power Over HDMI

I built a Retropie using a PI Model 3B that is powered via the GPIO pins. Specifically with this case which adapts micro usb to the GPIO power. Everything works fine except when I turn the system off. ...
0
votes
1answer
87 views

False-positive button press on power interference

I'm having a rather funny issue with GPIO & tactile switch. The issue is as I understand purely electric. My RPi is connected to a cheap usb "Extreme Style 5V 3.1A" PSU. Same power outlet is ...
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votes
2answers
46 views

Why RPI need such a high current?

I am little bit confused. All my colleagues tell me that I need 2.5 or 3A power source. Indeed, it does not work with with "smaller" source. However, the general knowledge and this site (and many ...
3
votes
0answers
95 views

Zero W: Cut USB power lines?

I understand that the Zero W USB port has just the power lines connected to all the power on the board (+5V and GND). I also understand that you can use something like Adafruit PowerBoost 1000C to ...
0
votes
2answers
115 views

Pi keeps turning on and off when I have a number of USB devices

So I have a Raspberry Pi B+ - I've had it for several years now, which I think may be the cause of this problem, though I'm not sure how. Basically, it's fine when I have just a keyboard plugged in, ...
3
votes
2answers
161 views

Can I fix my bricked RPI3?

I've been having problems finding a good 2A+ power supply around the house that would stay above 5 volts but no dice. So I gave up and tried powering from a bench power supply to a variable dc-dc step ...