Questions tagged [power-supply]
The methods for powering the Raspberry Pi (typically via its micro-USB connection.)
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Connecting 40+ transmitter coils to Raspberry Pi
I am currently working on a school project to make the wireless charging platform
from scratch but with more surface for originality. My current design requires 42 transmitter coils and these coils ...
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Quick way to maxise power usage on the RPi Pico without external HW?
I'm looking at powering a Pico over USB and I'd like to temporarily boost input current high, hopefully beyond 200 mA, certainly beyond 100 mA. What's a good way, programmatically, preferably from ...
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Ground offset when powering devices directly from 5VDC transformer
I am reading in current sensor (ACS712 20A) values using the MCP3008 ADC into my rpi zero. I am also using a Songle SLA-05VDC-SL-C relay, and have found that both the current sensor being on, and ...
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Undervotage detected while using UPS hat (b) on wheel robot
I am doing a mecanum wheel robot project included 2 motor drivers l298n. I use raspberry pi 4 GPIO to control the motor drivers and my power supply for rpi is an UPS hat (b). I keep receiving ...
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Power Pi 4 from Viewsonic touchscreen
I have a Pi 4 connected to a Viewsonic Touchscreen monitor.
The monitor has a USB C output that the monitor user manual shows being used to power a laptop. I am trying to use this USB C output (...
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Raspberry Pi Zero - 5 or 5.1 volts?
I am doing a little project where I power Raspberry Pi Zero from motorcycle battery (even when the bike is running). I have a step down converter which is set to 5V between the battery and Pi. But I ...
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Controlling and Powering 12v LEDs
Disclaimer: this is my first PI project, and at the moment I have only a basic knowledge of circuitry, so please be gentle.
I'm looking to construct a device using a PI 3B+ that'll be housed outdoors ...
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Can I use this power supply?
The maximum power supply for a Raspberry Pi 4 is 5V/3A but here I have a 5V/3.1A power supply. Can I use this power supply? Will I fry my Pi 4?
Below is a photograph of the power supply. The text on ...
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Can I use this fast charger for my Raspberry Pi 4? [closed]
It is a fast charger and says 5V/10W and also says 45.0W MAX? Please help me out.
I don't know what to do. Will it destroy my Pi 4?
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Can I let my RPi power off randomly?
I am placing my Raspberry Pi 4 in an embedded application on my boat. I am using a PICAN-M HAT to provide both connectivity to the NMEA2000 backbone, as well as power to the Pi (5v 3A).
The NMEA2000 ...
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Raspberry Pi Camera feedback freezes when moving NEMA 17 stepper motor with A4988 stepper motor driver
I have a Raspberry Pi with a camera module and a NEMA 17 stepper motor connected to it. When I run the command ffplay /dev/video0, the video runs perfectly. However, whilst the video is running, and I ...
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Does Pi draw more power when GND is connected to pin 16?
Strange question perhaps, but I was wondering if anyone knows if a Pi would in theory consume more energy when the GND pin is connected to pin #16? I have an interactive piece of software running on ...
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Can my charger power Raspberry pi 4?
I am new to Raspberry pi and I wonder do I need to buy a charger because in my country they cost a lot and when I examine my charger I saw that 5V 3A and I thought Raspberry pi 4 charger is 5V 3A too. ...
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How do I prevent raspberry pi automatic turn on when I connect the power plug?
I connect the power in plug. After that raspberry pi automatically turn on .
But I want it to be on when I press the button, how can I do this?
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Powering RPi 4B via USB-C Intermittent
The USB-C port on one RPi 4B is not making a good connection. If I apply side pressure to the USB-C power cord, the connection is made, and the RPi powers up, but when I release pressure it dies again....
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Raspi can'to connect to Wifi with Power Suply ~5.3 V via USB-C
"I have a PSU that delivers ~5.3 V on USB-C.
With this PSU, my Raspi does not connect to the Wi-Fi network. However, with another PSU that delivers ~5.1 V, the Raspi connects without any problems....
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Undervoltage with 5V 5A PS
I know this is a subject that is exaustive and at risk of sounding ad nauseam I have to ask because I have no solutions. My pi is reporting undervoltage. I haven't ran into this since using a Pi1 ...
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Separating power in Pi Zero when using the Pi as a HID that must be working without shuting down
I asked an AI:
When you use raspberry pi zero w as a HID, is it necessary to connect the pi to a machine via a single micro usb cable, for the power and the data connectivity? Does that mean that ...
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Which micro usb port if preferable to power pi zero?
Pi zero w has pwr micro usb and normal micro usb. Both of them can be used to power the pi.
What is the safest way to power pi zero w, via pwr micro usb or data micro usb?
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RPI fails to boot after reboot; ok after unplug
Four of my five Raspberry Pi boot flawlessly upon sudo reboot; one fails. This RPi, but none of the others, has a Hifiberry Amp2 mounted on the GPIO header.
I suspect for the below reasons that the ...
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Powering Pi 4B with dead PMIC
One of my many Raspberry Pi 4's in one of my clusters recently broke down. After some troubleshooting, I was surprised to find out, that the power circuit on the board was actually toast.
I have no ...
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External hard drives keep getting unmounted
I have an OpenMediaVault NAS on top of the Raspberry Pi OS Lite set up on my Raspberry Pi 4B.
I have two 1 TB Toshiba HDTB410XK3AA hard drives connected to the Pi through a powered USB hub.
Now I am ...
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Is my Raspberry Pi original?
I recently bought a Raspberry Pi 4 Model B. This is the first time I have bought a Raspberry Pi. As per my understanding, the recommended power supply is 5.1V / 3A. I am using a different power supply ...
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Current draw Raspberry Pi 4 measurement results. Does anyone have more data?
I thought this would help with designing HAT power. Does anyone have similar measurements while running software and connected devices?
Scant information on the current draw. I measured through the ...
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How to support the power supply of servo motors using an ordinary AC-to-USB adapter?
I normally power my Raspberry Pi Pico via a USB connection to my computer. However, when working with servo motors, the motors can draw quite a bit of power, destabilizing the USB communication ...
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Power Pi Pico by applying 5 V to VSYS—any experiences with or thoughts on additional safety measures?
The official Pico datasheet chapter 4.5 suggests using either a Schottky diode or a P-channel MOSFET (P-FET; or a combination of both) when powering the Pico from an external power source (at least if ...
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RPi can't boot up from battery, needs to be connected to USB-c then while the battery is connected disconnect power supply USB-c
I have noticed that my Pi will not boot from a battery (supplying 5.26v Raspberry Pi 4 Model B) unless I first start it up from the USB-c power supply and then connect the battery power supply. My ...
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Powering GPIO-interacting sensors with external 3V3
I am using a Raspberry Pi Zero, with an x706 PSU hat (2 x 18650 batteries). The X706 PSU is charged by a good quality, stabilised 5V power supply unit providing up to 3A. The Pi is hooked up to many ...
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How best to run a raspberry Pi 4 from a 12V DC supply
The Raspberry Pi 4B uses the USB-C input as its power supply. To the best of my knowledge a full power USB-C supply is 20V or is it any voltage up to 20V?
If it's variable, is there a good way of ...
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Maximum power draw on Pi Pico 3.3V rail with USB power
The Pi Pico datasheet recommends a maximum power draw on the 3V3 pin (pin 36) of 300mA. However, the RT6154B datasheet indicates that up to 3A can be drawn when Vin > 3.6V, which is the case when ...
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Insufficient power for RPI + 7" Touch Screen
I have a raspberry pi 3B. It is connected to a 7" RPI Touch screen, (made by RPI). The screen gets 5v from the pi and the pi is connected to a 5v, 2.1A USB power pack.
For some reason the power ...
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raspberry pi 3 B v1.2 not booting no led light and heating on the backside
I haven't used the pi for a few month now , it was stored in good condition. so yesterday i flashed the SD card with rasbian bullseye and booted up the pi. every thing was normal except the wifi , i ...
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Strange voltage on 3.3V pins
I have bought a new Raspberry Pi 4 and while troubleshooting connection to a DAC module I measured the voltage at 3.3V power pins. With reference to the pin header number as shown on the diagram below,...
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Raspberry Pi 4 wifi intermittent latency drop
I'm running Ubuntu Server 20.04 headless on a Raspberry Pi 3 and 4. SSH connection is through a wireless router with only my laptop and the Pi connected. Pinging the Pi (192.168.0.215) shows the ...
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Monitoring power consumption of a Raspberry Pi 3B+ device
I am wondering if it is possible to measure the power being consumed by the CPU core (ARM chip) of a Raspberry Pi? Specifically, I want to monitor this power consumption for various applications that ...
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Do I need a on and off button for my power supply?
I purchased this power supply https://www.raspberrypi.com/products/type-c-power-supply/. It’s the official power supply so I thought it would be good. Now I am hearing all these stories about what ...
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Difference between Pi3 and Pi4 RUN headers?
I am trying to disable boot when pi4 plugged to power. I found some usefull answers, but that answers are about pi 3. I am using pi 4 and I must connect together 2 RUN header pins. In pi 3 RUN header ...
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How to disable boot when plugged to power? [duplicate]
I want to disable boot of raspberry pi 4B when plugged to power
I have searched a lot and found a similar question, which gives a short and suspicious answer to this problem. If two RUN pins(holes) ...
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Is 4A enough for a NAS?
I have recently turned by Raspiberry Pi 4B into a small NAS. However, I noticed that the Pi disconnects from Ethernet from time to time. Whenever this happens (e.g. ssh not responding or Pi not ...
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Raspberry PI4 + Coral TPU + Telit LTE get "Under-Voltage"
I am using a Raspberry PI4 powered by the Raspberry power supply(5.1V,3A) and I have also a Coral TPU and a Telit Lte Modem attached on Raspberry USB 3.0 Ports Hub.
According with the Coral Power ...
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3 12V DC motors on raspberry pi with L298N
Completely new to this stuff. For context, I am trying to connect 3 DC motors that probably are 12v. I haven't bought them yet, they will definitely be more than 5v. I want to be able to control all ...
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Raspberry Pi 4 WiFi and Ethernet stop working after a ribbon cable plugged in to custom HAT
I have been struggling with a strange issue where as soon as I plug a ribbon cable into a custom designed HAT (with nothing connected on the other end), the WiFi and Ethernet temporarily go down.
My ...
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Send power on/off/cycle command from one Pi 4 to another Pi 4 using GPIO (each having their own power supply)
I would like to control power of a Raspberry Pi 4 using another Raspberry Pi 4.
Each Raspberry Pi is powered by its own official Raspberry power supply, to make sure each one gets enough power.
It ...
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Turn on pi at specific time with RTC to save battery
I'm looking into powering my raspberry pi via a powerbank. I already have a button and a relay to turn it on manually and when the pi shuts down flip the relay back to off position. Now I would like ...
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How much overvoltage for a few ms
i'm trying to build a system with a Raspberry Pi and 2 switchable 5V DC Batteries (USB Powerbanks). I want to switch using Arduino and Relays.
I would like to switch almost instantaneous, in order to ...
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Is it safe to power a Raspberry Pi Zero W with a Fritz!Box USB-port?
As many others im getting a Zero W for PiHole and i would like to power it using the usb-port of my wifi router. However, im concerned about undervoltage. I read the Zero W wants 1,2A, but usb 2.0 ...
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Calculating power adapter needs for my Compute Module 4 setup
So I'm finding it a little difficult to figure out how I should be powering my setup. I'll have Waveshares IO board here: https://www.amazon.com/gp/product/B08VJBGD1Q/ref=...
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USB power stay on after software shutdown?
When the RPi4 does a soft shutdown, it appears to leave power on to the USB ports. Is there a way to have the USB ports power off with the RPi?
I’m building a project with a Waveshare touchscreen that ...
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Can I power a Raspberry Pi 400 with a 5V 2.5A power supply?
I have Raspberry Pi 3 B+,and I'm considering upgrading to a Raspberry Pi 400. I understand that it is recommended to use a 5.1V 3A power supply, but can I use the 5V 2.5A supply I already have?
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Can sensor DHT22 be powered externally, and only read by Pi Zero W?
I am querying the DHT22 for temperature and humidity data, hooked on a Raspberry Pi Zero WH. My current setup works, and is as shown in the first picture, courtesy of the tutorial from PiMyLifeUp.
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