Questions tagged [hardware]
Questions relating to the physical components that the Raspberry Pi consists of.
974
questions
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Looking for a “high resolution” LED strip
I'm trying to find a high density addressable led strip, mean as many LEDS crammed as close together as possible and their colors can be changed individually. I want to make a spinning blade of LEDS ...
0
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0answers
17 views
7" LCD POWER options
I have a question about powering a 7" LCD. It should be a rather intuitive answer, but I really don't want to risk my screen on the off chance that I'm wrong.
While experimenting with things this ...
2
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0answers
31 views
Stacking up multiple grove base HATs on Raspberry Pi
I want to stack multiple Grove base HATs on a single Raspberry Pi.
This is the HAT i am using
https://wiki.seeedstudio.com/Grove_Base_Hat_for_Raspberry_Pi
My application needs to interface 24 analog ...
3
votes
1answer
119 views
Pi Zero W 1.1 - What kind of component is this? What does it do?
Unfortunately a component (see image, component is encircled in red) is broken/missing on my Pi Zero W 1.1.
So far everything still seems to work, but anyway:
Do you know what kind of component this ...
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0answers
24 views
Powering raspberry pi with 7.2 Volt battery and a Buck Converter with 1.5A output
I've connected the Raspberry Pi's 5V and GND to the Outputs of a buck converter(https://www.droking.com/30W-Power-Supply-Module-DC-5-32.0V-to-0-30.0V-Buck-Converter-Adjustable-Voltage-Regulator-DC-12V-...
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13 views
Pi 4 not working with HHKB Hybrid type s keyboard
I can't find the keyboard device using the bluetooth manager and it does not work when I connect via usb. Any help please!!!
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0answers
36 views
Problem with audio
I want to implement Jarvis on my RPi4 and got some problems.
I have a Respeaker 4- mic array hat for the Pi and want to use it as an Audio input. As audio output I want to use the 3.5 jack.
When I ...
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0answers
50 views
Every 24h, network connectivity ceases
Every day my Raspberry Pi 4 4GB loses ethernet (wired) network connectivity (I don't use WiFi on the device). The device is otherwise still functional, but no matter whether I down/up the interface, ...
1
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2answers
255 views
Can you use the Rpi compute module CM4 without the IO board?
I want to use the raspberry pi for some projects, although the normal pi is too big and I want it to be as compact as possible. I thought about using the compute module(without the IO board) since it ...
1
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1answer
44 views
Help identifying an SMT component
I have a RPi zero w that is missing a SMT component.
Does anyone knows what component is it and knows it specifications so I can try to solder it again?
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116 views
Can i run Counter Strike 1.6 on Raspberry pi 3b+
I really enjoy fps games and would love to play CS 1.6 but i don't know if it's possible to install on a Raspberry pi.
Anyone got any tips?
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1answer
51 views
Raspberry Pi Zero GPIO Pins not working from opposite side?
As a disclaimer, I'm new to digital electronics and somewhat new to soldering.
I recently bought a standard GPIO header for my raspberry pi zero, but in order to use both the camera part of my case ...
0
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1answer
60 views
working micro pushbutton gives no Input on GPIO RPi4
I use a simple python script (https://github.com/edus44/lakka-gpio-control/) for Lakka GPIO button input on a Raspberry Pi 4.
The script works perfectly: If I short wire one of the GPIO Pins to GND ...
2
votes
1answer
64 views
RFM69HCW with Raspberry as gateway for wsn
Good day,
I am making a wireless sensor network prototype using communication technology, the RFM69HCW module [3]. I use an Arduino nano for the processing unit for the sensor nodes, and for ...
1
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0answers
27 views
Measurements for port placement
I'm going to design my own Pi 4 case because the existing cases I've found don't really meet my requirements. Where can I find complete measurements for port placement? At https://www.raspberrypi....
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0answers
96 views
relay switch switches ON but never switches OFF [closed]
I connected my FL-3FF-S-Z two channel relay board to my Raspberry Pi 3, with gpio 0 and gpio 1 (numbers are from to $ gpio readall).
Following some guide, as GPIO generates only 3.3v I have removed ...
0
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1answer
45 views
Switch out the X1 Oscillator on a RPI
Just like a lot of people I'm using a RPi as a NTP server.
There is a nice thread about it here: Switch out the X1 Oscillator on a RPI 2/3
User @colintd had a brilliant answer about switching the ...
0
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2answers
55 views
GPIO extension - USB to GPIO module (NOT GPIO to USB)
I ran out of GPIO on my RPI and now looking for a module to converts USB to GPIO for my Raspberry. I am not interested in converting GPIO to USB, but interested in USB to GPIO.
I've been googling for ...
3
votes
1answer
51 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
45 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
78 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 ...
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0answers
26 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 ...
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2answers
94 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
25 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
62 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 ...
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0answers
20 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
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1answer
71 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
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1answer
71 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
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2answers
193 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
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2answers
192 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
198 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
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1answer
492 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 ...
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0answers
685 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
46 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
80 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
54 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
46 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
124 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
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0answers
66 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, ...
1
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1answer
77 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
118 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
61 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
227 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
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1answer
71 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 ...
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0answers
28 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
248 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
61 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
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0answers
36 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
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2answers
67 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 ...
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0answers
102 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'...
