Questions tagged [hardware]
Questions relating to the physical components that the Raspberry Pi consists of.
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How do I control 6 motors with a Raspberry Pi? [closed]
What motor driver can drive 6 motors with a Raspberry Pi?
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Video decoding HW acceleration broken in Kodi on Raspberry Pi 4 after upgrading to Raspberry Pi OS 12 (Bookworm)
Hardware video decoding worked fine on Raspberry Pi OS Bullseye with its Kodi 19.1. Now that I upgraded it to Raspberry Pi OS Bookworm (Kodi 20.1) (which, as I realized, hasn't been released yet) it ...
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Capacitive Touch Controller Help
hoping somebody can point me in the right direction. I've done some research but feel a bit stuck.
My intention is to use an Android Tablet I found on Ebay as a Homeassitant dashboard, bought it with ...
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2
answers
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How to physically remove WiFi from 4B?
I am closely following Scott Young's training on working with deep focus.
I have a new 8GB Raspberry Pi 4B along with an Samsung 870 SSD and NVMe to USB 3 converter - I am working just right.
But as ...
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17
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Moving an external hard drive to a fresh install
I use a pi4 with 32-bit raspbian and a USB drive with an ext4 partition as a NAS. I want to upgrade the pi4 to 64-bit through a fresh install.
If I reinstall raspbian with the same user/pw, will my ...
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28
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Are BCM2711's CPUs always running in 'secure' world?
If SoC's don't use TrustZone, according to this answer it means that the CPU starts in the 'secure' world but does not change to the 'normal' one. Is this the case with the Raspberry Pi 4's BCM2711? ...
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32
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Issue with Raspberry Pi 4 and Monitor Resolution
I recently got a raspberry pi 4 (8GB) and a 1080p monitor. I have installed Kali linux 2023.2 and parrot sec os 5.3 but my 1920x 1080 monitor isn't working with my raspberry pi 4, and keeps defaulting ...
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I2C Device is not detected
Another issue arises since my last question which I have not solved yet. I am trying to use SGP40 sensor on Raspi4
the sensor has built-in pull up 10k resistors in both SCL and SDA, the sensor VLogic ...
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1
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did I fry Raspi I2C pins?
So I wanted to test a sensor I have on the pi, the sensor has on-board level switchers supports both 5V and 3.3V with a 10k pull-up resistor for both SCL/SDA, Mistakenly I wired the Vin into the 5V ...
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How to interface 6 HC-SR04 ultrasonic sensors rasberry pi
I am a beginner to Rasberry Pi and working on a parking warning system for a go-kart. The plan is to use 6 ultrasonic sensors (3 at the front of the kart and 3 at the back) to achieve distance ...
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Installing operating system (Raspberry Pi)
Hi, I am trying to start a project and this is the first time I am using Raspberry Pi. I intend to create a retro gaming console, but I am unsure what kind of Operating system I should use. I see it ...
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1
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Avrdude with Pi3B problem with dependencies
I've installed the newest version OS, but now I have to fix connection with my additional components. I have to install avrdude_5.10-4_armhf.deb. I always used this tutorial.
However when I try ...
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OSError: [Errno 5] EIO wit a raspberry pi pico
I am using the Raspberry Pi Pico with this code:
#Pico Invaders!
#
# TODO : Implement alien shots, Shields, Sound
from machine import Pin, I2C, ADC, PWM
from ssd1306 import SSD1306_I2C
import time
...
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Trying to do hardware H264 encoding with gstreamer on a Raspberry Pi 4B
I am attempting to do hardware-accelerated H264 encoding on a Raspberry Pi 4B. I am running bullseye with an aarch64 kernel and a 32-bit userland:
ben@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME=&...
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HDMI port on old raspberry pi physically hot when ran on batteries?
I have a pi with a step-down and some batteries and for some reason the hdmi is the hottest part, even when I don't have a hdmi plugged in? Could somebody explain
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JamHat Button latching & timing
replacement question posted for clarity.
I am trying to use JamHat buttons to direct my Python 3 Robot program.
A typical code snippet demonstrates the problem. Run the snippet with the indicated ...
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CamJam LED HAT buttons do not latch
I'm using the CamJam Jam Hat, 6 LED, 2 Button, 1 Buzzer HAT.
Research found simple scripts which run and easily find Button presses.
Inserting the same code in a larger program and checking the same ...
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Dead Raspberry Pi, Rev 1.4, please help me identify model of the chip [duplicate]
Hi! I am trying to fix shorted out Raspberry Pi 4B and I identified this chip as bad (Running extremely hot while Raspberry looks dead).
The chip itself is scratched and protected from reading model ...
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Powering Raspberry Pi 3B+ with Multiple Attachments: Recommendations for Portability
Ok so I'll try and keep this short and sweet. Basically, I have all these attachments for my Raspberry Pi 3B+
Raspberry Pi 7" Touchscreen
Case for Touchscreen w/ Cooling Fan
Raspberry Pi Camera ...
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How to pick the correct R-Pi
I have a requirement to build a monitoring device with a display. The main conditions are:
Need a MySQL database
Need Internet connectivity via WiFi
Capable of reading MODBUS slave device, and other ...
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1
answer
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Why does Raspberry Pi 400 use white color (and not black) for its USB 2.0 port?
On a quick look up, it seems the general trend is white for USB 1.0 and black for USB 2.0. I also glanced through the USB 2.0 specification to try find anything relevant but it seems a bit ...
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What is this component on the Raspberry Pi 4 Model B?
Can anybody identify the chip in this section of the board? My RPi won't boot and this chip is scorching hot (over 80° according to a temp probe). I'm guessing this chip is busted. I've replaced SMDs ...
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Question concerning the display (ribbon cable) port on the board
I had an idea for a raspberry pi project, but i need some more info first.
I looked a bit but i didn't see anything about it, what connector type does the display (ribbon cable) connector use, and ...
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Empty Pi Hat/Bonnet
Does anyone know where to find a Pi Hat or Bonnet that is empty? By that I mean a PCB that has the connectors to solder stackable headers onto, but no connections just raw PCB? The reason I want ...
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Raspberry Pi Zero 2 W to 5GHz Access Point
i know that Raspberry Pi Zero 2 W are not able to connect to 5Ghz access point. Would it be possible with adapter over USB to connect to 5Ghz access point?
I found several adapters in Internet, but i ...
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2
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How do I fix the usb-c port cracking on my pi 4?
Today I inspected my raspberry pi (4B, 4 GB ram) to see if any cables were disconnected, as my new Viewsonic monitor kept restarting for some reason, and I saw this:
It looks as if the USB-C port in ...
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1
answer
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Raspberry Pi undervoltage strange issues
So I have an old Rpi2 B, and I was getting an undervoltage error trying to run OctoPrint on an old bundled PSU.
I swapped for a 5V/4A PSU with the same error, I only have the power supply and an ...
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Recommended GPIO to read 10Mhz clock in CM4
I have a 12-bit parallel output ADC, which samples at 10M samples/sec. A 10MHz oscillator clock is connected to it in the custom designed PCB. The 12 data lines are directly connected to the CM4. The ...
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Benchmarking performance RPi vs Old Laptop
with the current shortage in RPi availability, I found myself looking for good deals of second hand computers.
Basically, I only want the RPi to perform computation and act as a server, nothing more, ...
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RPI 3 B+ 3V3 Shorted to Ground, Pin 18 Shorted to ground. Can this be Saved or is Pin 18 a safe sign for a dead CPU?
As the title suggests. I removed the power managment chip already but 3V3 is still shorted to ground.Since the schemtacis arent complete i cant find all caps to test first.Can there be another issue ...
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Adding a `cec-gpio` dtoverlay for CEC debugging
I want to build a CEC Debugger as described in the Kernel.org documentation with my Pi Zero 2 W, I plan on using something like this:
I am having trouble with the final instructions listed to enable ...
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Raspberry Pi 4B won't boot, is it dead?
I'm new to the Raspberry Pi world. I was in a charity shop today and I've seen a deal I couldn't resist so grabbed the Pi for 10 euro knowing full well that it could be faulty. Anyway once I got back ...
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Hyperpixel 4.0 strange behaviour of Touch driver error
I since a few months, I have been using a Hyperpixel 4.0 Touchscreen with my Raspberry 3B+ without any problems. Since a few weeks i use my touchscreen with the Raspberry Pi 4 Compute module and ...
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Interfacing Saitek Megamaster MX-530 with Raspberry Pi
I found out an old Saitek Megamaster MX-530 joystick that I used to play games on old Pentium machine with Win XP. I've tried to used on modern system buying midi/game port converter (25 pin) to USB ...
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What is the magnification of the stock lens used in Rpicam V2?
I'm trying to get the overall optical magnification of my digital microscope and wondered if the lens built in the Rpicam v2 has any magnification. Does anyone know this specification? Thanks!
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External USB disk disappears
So I have a RPi4B 8GB running as a Plex Media server. Works great, no issues really. I am running Debian GNU/Linux 11 (bullseye).
The Plex pi is running in a Geekworm NAS Pi kit - after market power ...
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How to get board game pawns position
I am building a semi-digital version of the famous Monopoly game.
For this, I'm using a screen with a Bubble.io app for the interface:
Now, I would ideally like to detect the physical position of the ...
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"Make" command gave error while trying to compile AP drivers for MT7601U on raspberry pi 4
i have a wifi adapter which has MT7601U chipset in it, but the driver in linux kernel for this chipset doesn't support AP mode, so i was trying to install the AP driver from this github page:
https://...
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Using raspberry pi for 5 different frequency generation and FFT concurrently
I want to use a single raspberry pi to do the following concurrently -
Create 100, 200, 300, 400, 500 hz frequencies from 5 different ports.
Determine Fast Fourier Transforms of this 5 frequencies
...
4
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2
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How is the slew rate of a GPIO determined?
I’ve noticed that if measure the rise time of GPIO on a CM3+L in a carrier board, I get very different results. GPIO22 for example, manages <2ns, which seems inline with the electrical ...
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GPIO buffering with the ULN2003
I thought I understood the ULN2003AN before purchase, but I'm clearly missing something. I created a very simple test with two power supplies. One producing 3.3V and the other 24V.
Connections:
I ...
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59
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How to mimic RC signals using raspberry pi?
I am working on an automated Quadcopter and I am trying to build a flight controller using Arduino board and raspberry pi.
I don't want to use a transmitter and receiver in this project instead wants ...
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Pin outs and conflicts: Adafruit Voice Bonnet vs TFT Touchscreen
Apologies for this simple question, I'm not really a hardware person.
Reading the pinout diagram for the Voice Bonnet here: https://learn.adafruit.com/adafruit-voice-bonnet?view=all it seems (if I ...
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I can't get My BLDC (Brushless DC motor) to run
Goal
Use Pulse Width Modulation (I think that is the standard approach) to control the speed of my BLDC.
I have tried so many things
#include <stdio.h>
#include <inttypes.h>
#include <...
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0
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90
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USB ports no longer carry data
A lightning bolt took out a number of devices in my home and my raspberry pi 4b 8gb seems to have been affected. All 4 USB ports still provide power to peripherals but there seems to be no data ...
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108
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How to control existing button with a Raspberry Pi? [closed]
I've got a simple standing with two buttons up/down. It has built in overload protection, i.e. when it's blocked. I'm pretty sure the controller behind the up/down button does that.
As my first Pico ...
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How to CPU throttle Raspberry Pi 4?
I want to know how to throttle the CPU usage on my pi to lower the current draw. I have tried looking this up but I couldn't find anything on the internet.
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Rpi Pico receiving on multiple UARTs
Expected behavior:
in hardware I connect UART of a number 0/1 to the correct Pin numbers tx/rx and get it based on that connection
Actual behavior:
in hardware I connected UART of a number 0/1 to the ...
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3
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498
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Board getting super hot, what's wrong with my Raspberry Pi 3?
So I was about to benchmark cooling techniques to cool my raspberries when I noticed that my RPI3B Rev 1.2 board was getting abnormally hot out of the box when booting a vanilla Raspbian from the SD ...
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3
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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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