Questions tagged [hardware]
Questions relating to the physical components that the Raspberry Pi consists of.
959
questions
3
votes
1answer
30 views
GPIO stuck high after shutdown/halt
I'm new to the world of Raspberry Pi, I'm setting one up as a little PC for a kid. I have a RPi 4 running Raspberry Pi OS, and I've build a case around this heatsink. I have created a simple circuit ...
1
vote
1answer
40 views
How is the radio module connected to motherboard (CPU) on Pi-4? [closed]
By this link we can see that in Pi 4 there is Wi-Fi module (called radio module under the picture).
But I can't figure out, how is this module connected to motherboard? Is this PCI bus or whatever?
...
0
votes
1answer
39 views
USB drive is not visible [closed]
I mounted an Ext3 USB drive using fstab. It works, but I have one issue. Sometimes when I turn on the system, the drive is not visible. I can not find it in mnt, media or in the desktop.
It does not ...
1
vote
0answers
19 views
Physically turn the Raspberry Pi Touch display on and off with a switch
I use a Raspberry Pi Touch Display that I connect like shown in the following picture to my Raspberry. The black and red wires are connected to thee GND and 5v pins respectively. Now I want to ...
1
vote
2answers
34 views
Raspberry PI with Linux and C# on it - how to read hardware/sensor info
I need to create a Monitor.Health service that receives pings on each of the client's raspberries each 5 minutes , showing tempreture of the device , is it online and other hardware info that is shows ...
0
votes
1answer
23 views
Camera + hardware for sky-watching project [closed]
I would like to build a Raspberry Pi setup with a camera, the idea being that the camera sits outside, pointed at the sky, and sends the video stream to my computer, inside my home. I'd like to use ...
2
votes
1answer
57 views
Is joining NEO6MV2 module and RC 522 module together to Raspberry Pi possible?
I am new to this but from my initial project requirements, I will need to join GPS Module and RFID Module to a Raspberry Pi 4. Do the GPIO pins support the required output? Is there any guide on how ...
1
vote
0answers
18 views
restrict `apt upgrade` to available hardware or hardware version
I have an old-ish RPi 1BP. It's slow, but remains useful for some things. I do keep the software current through periodic apt update & apt upgrade.
I've noticed that since the upgrade to buster, ...
1
vote
1answer
60 views
Can I stack multiple different HATs on RaspberryPi4?
I want to use multiple different HATs on the same Raspberry Pi. These are the boards I want to use:
https://www.sparkfun.com/products/16328
https://www.seeedstudio.com/ReSpeaker-4-Mic-Array-for-...
0
votes
1answer
48 views
Raspberry Pi 3B fell to the ground, “4R7” box looks busted. Is dead?
I was toying around with the Pi, left it in a place where I should have not put it, and it fell to the ground. I picked it up again and noticed one of the small "4R7" labeled boxes was kind ...
-1
votes
2answers
81 views
How can I write a GPIO interrupt driver? [closed]
Having used Python for a simple robotics platform for experimentation with machine learning I've found Python lacks in supporting hardware in anywhere near real time. Polling the GPIO using C is ...
0
votes
2answers
59 views
Can you use 1 large SSD device for booting and data (2 partitions) on Pi4?
I want to use one partition for booting (RASPIOS) and one for the data files. The reasons I have are: 1- cost per GB on SSD devices is less and 2-separate devices causes more heat along with increased ...
3
votes
2answers
112 views
How to get accurate compass?
I'm building a project based on raspberry pi that relies on fairly accurate compass to be viable. Essentially, if I could know where's North with about 10° of error, I'd be quite happy.
I've bought ...
1
vote
1answer
159 views
Desolder wifi/bluetooth module on a Raspberry Pi 4
What does the process of physically removing the wifi/bluetooth module look like for a Raspberry Pi 4? How hard it is for a beginner & for someone experienced with soldering? And how likely it is ...
0
votes
0answers
219 views
Raspberry pi 4 - Hardware offload of h264 video decoding in Chromium
I am trying to develop a web application displayed in chromium in kiosk mod (78.0.3904.108 (Official Build) Built on Raspbian , running on Raspbian 10 (32-bit)).
I am hoping to play h264 medias ...
0
votes
1answer
39 views
GPIO to control a 12V remote control [closed]
I am trying to automate the pressing of a remote control button by the PI.
With the buzzer it works well.
If I replace the buzzer with the remote control it sort of works.
The remote control has an ...
-3
votes
2answers
74 views
GPIO to control 12V switch
I am trying to automate our front gate. The gate is operated by a 12V remote control. My idea is to get the Raspberry Pi to press the button and automate this.
Working towards this I have connected a ...
0
votes
1answer
43 views
rPi4 no longer capable of HDMI output. Eeprom recovery did not help
I have a rPi 4 that died on me, in two stages:
First it would only show a yellow screen on HDMI outputs.
Then later, it completely stopped outputting HDMI altogether. It seems to be in a reboot loop?
...
0
votes
1answer
45 views
what servos should I use? [closed]
I want to make a humanoid robot with my pi, but am unsure of what servos I would need. I did some research and found out they a rated in kg/cm, so I calculated the weights they would be lifting, ...
3
votes
1answer
72 views
Knocked off an SMD from Raspberry Pi Camera Rev 1.3, but camera still works. Is the SMD needed for continued operation?
I accidentally knocked off and lost an SMD labelled "C9" from the Raspberry Pi Camera. The Camera still works, and I am unable to spot any differences. What is the role of the capacitor, and ...
1
vote
0answers
42 views
PIR sensor always high with Raspberry Pi3 without breadboard
I have a HCSR501 PIR motion sensor, which has 3 pins (Vcc, Out, Gnd) that I've connected to 5V, GPIO 26, and Gnd respectively. Despite following all the steps in tutorials for interfacing the sensor, ...
0
votes
0answers
48 views
Delay/Lag when controlling motors with arduino from raspberry pi
I'm making a car-type-thingy where I control motors connected to an arduino with a raspberry pi via serial communication. I'm using the adafruit motor shield to control the motors. I want to control ...
0
votes
1answer
56 views
Raspberry Pi 4 - BCM2835 Library - SPI1 - data mode 1
I use the BCM2835 library to communicate in SPI with an ADC. The SPI0 interface is already used by a touch screen (https://www.pi-shop.ch/pitft-plus-480x320-3-5-tft-touchscreen-fuer-raspberry-pi-model-...
1
vote
1answer
44 views
How to connect harness cable to male pins of Raspberry pi
I have a raspberry pi and omron sensor d6t. This sensor comes with connector in which you can connect harness cable to it. It looks like below:
For my development purpose I connect the wires from ...
0
votes
1answer
101 views
Can I use a USB drive instead of a micro sd card?
I have a USB but not a micro SD card. I installed the operating system onto it.
Can I use that as the storage and OS layer for my Raspberry Pi 4?
0
votes
1answer
27 views
Raspberry Pi shows all I2C addresses in use while nothing is connected
I've been building an autonomous boat with a raspi zero, and today I added a new i2c device. I first disconnected two other I2C devices I had attached. I then used i2cdetect -y 1 to verify that no ...
0
votes
0answers
27 views
USB Soundcard: 2nd configuration doesn't show up on raspbian, but does on MacOS, Ubuntu on a laptop, and Windows. Is this a hardware issue?
I'm trying to get the usb soundcard embedded in a DJ mixer (Allen & Heath Xone23C) to play nice with a raspberry pi for the sake of using it with Xwax, an open source dj software. The problem is, ...
-1
votes
1answer
136 views
Desoldering ports on Pi4
Are there specific considerations to quality of traces/pcb for data? I want to desolder the ports on the Pi4, replace them with pins and mount the Pi to a dumb board that extends the lines to put the ...
0
votes
2answers
58 views
Raspberry Pi using a laptop? [duplicate]
So I tried using a laptop to install Raspberry Pi, without connecting the USB cable to a keyboard and mouse, but I am not seeing any Raspberry Pi display on my laptop screen?
Do I need a keyboard and ...
0
votes
0answers
19 views
Raspberry Pi 3 : how to find device number and card number with bluetooth
I'm trying to set up google assistant on my raspberry pi with this guide:
https://pimylifeup.com/raspberry-pi-google-assistant/comment-page-2/?unapproved=27549&moderation-hash=...
0
votes
2answers
56 views
How do I know that a Dual-Band USB WiFi dongle will work on Raspbian or other Linux distrobution?
How do I know if a Dual band USB WiFi dongle will work on a Raspberry Pi running Linux?
I know that Linux must have a driver that supports the wifi chipset used in the dongle. But with the number of ...
0
votes
0answers
60 views
Multi-channel Audio Recording with asoundrc - sudo sound card not appearing
I'm trying to find a way to record audio from 4 separate sound cards at once, using a raspberry pi running with rapbian. From what I've read it should be really straight forward so I'm not sure what I'...
1
vote
0answers
49 views
Raspberry Pi FlexRay HAT [closed]
I've been searching for a couple of days for a FlexRay HAT / module for Raspberry pi without success.
Is there such a module available?
0
votes
2answers
386 views
Can I use HDMI 1 instead of HDMI 0?
I am using a raspberry pi 4 and I only have an adapter, so it's to big to fit in HDMI 0 is there a way I can make it work with HDMI 0?
1
vote
1answer
42 views
Feasibility of a coprocessor socket on the next gen Rpi [closed]
I'm aware of several different constraints on the Pi5 (and beyond), and I was hoping someone could give the full list and what specifically prevents such a feature (and why).
The next Rpi will still ...
1
vote
2answers
58 views
Is it safe to underpower my raspberry pi?
I have bought a raspberry pi 4 B. But I don't have a powerfull enough power suply, and won't be able to get one in a couple of days. IS
1
vote
1answer
302 views
Pi 4 does not see SD. Can't boot from SD-card
My Rpi 4 doesn't see the SD-card. I have switched SD-cards, formatted them all correctly. Also used both Raspian and Noobs. Nothing helps because it does not see the cards.
Every 'solution' on the ...
2
votes
0answers
99 views
Controlling a laser rangefinder via the raspberry pi
First, a disclaimer that I am an electronics newbie. I got my hands on a laser rangefinder which looks very similar to this:
On the top left corner, there are two sets of pins. The first set has ...
0
votes
0answers
104 views
Hardware watchdog during reboot
I'm creating a prototype of a Raspberry Pi 3B+ that uses Mender as the update manager. My goal is that if the Raspberry Pi is stuck somewhere in the boot process (Corrupted Kernel that cannot even ...
2
votes
1answer
41 views
Audible ground noise from ultrasonic sensor (VMA306)
I'm having problems with audible noise from a VMA306 sensor. Everything is working great apart from the audible low frequency buzz after my code is done running. The sound stops when touching any ...
1
vote
4answers
191 views
External hard disk disappears after a few hours
I have an external hard disk drive, formatted with ext4 and connected to my Pi 3B+ running Raspbian with Kernel 4.19.97-v7+. Every now and then, usually after about 12 hours, but
sometimes a few ...
2
votes
1answer
39 views
RPi 0W: some GPIO pins apparently not working
I have a Raspberry Pi 0 W, connected with both a WaveShare Battery HAT and a WaveShare 1.44" LCD screen with joystick and three buttons.
The screen works, the joystick works partially and the three ...
1
vote
0answers
32 views
Getting PC hardware info through pi zero
I am trying to get some info about the hardware on my PC through my pi zero for example CPU temperature and RAM speed etc. I have connected my pi zero through a single usb cable into my PC (I am able ...
1
vote
1answer
144 views
Is it possible to use PAPI on a Raspberry Pi 4B with raspbian buster?
I want to use the PAPI library to record hardware performance counters during benchmarks, but it does not seem to work on my Raspberry Pi 4 B.
Installing PAPI was not a problem, but there are no ...
-1
votes
1answer
27 views
Does “3B+ onwards” include 3A+?
I want to buy the following (emphasis mine) for my 3a+
The official Power over Ethernet (PoE) add-on board for the Raspberry
Pi. Use this HAT to power a Raspberry Pi via an Ethernet cable,
...
2
votes
2answers
398 views
overvoltage on POWER SUPLY; not on the gpio pins
I am feeding 5.41 V on the microUSB power supply pins to a raspberry Pi 3B. Yeah, I know, USB = 5V +/- 5%. Because reasons, I have to keep doing this for a while. What I find is that dmesg ...
1
vote
0answers
89 views
Cannot log in to raspbian buster with default username and password
I have an issue logging in to my new raspbian buster (raspbian 10 Raspbian Buster with desktop and recommended software) using the known default {pi, raspberry}.
My keyboard is in English and I have ...
1
vote
0answers
26 views
Nothing on screen while booting
I am having trouble booting my raspberry pi 0 w. I am using a 32 gb micro sd card with noobs downloaded on it. I have followed the steps on the raspberry pi website to boot the pi, but when I plug in ...
0
votes
0answers
103 views
compiling hardware-accelerated VLC into YOCTO for Raspberry Pi 3
How does one achieve it to compile a hardware-accelerated (in this case via the Broadcom VC4) version of the VLC media player for the Yocto project?
I already tried to
install VLC via the local.conf ...
1
vote
0answers
525 views
pi4 4gb not powering XBOX one wireless dongle
I have a 2GB and a 4GB raspi 4 and the problem persists in both PIs
Im trying to control my robot using the xbox one controller. I want to use the dongle instead of the bluetooth to get a bit more ...
