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1answer
31 views

3.5" LCD driver conflicts with UART

I'm using RPi Zero W with 3.5" LCD driver ( here ). Everything works well except the UART. Linux console is disabled and UART is enabled. When video output is on HDMI port, I can send and receive ...
-4
votes
0answers
25 views

Raspberry pi desktop cluster [duplicate]

Can I connect 2 Raspberry pis 4b together to get Faster desktop? If I can Tell me how please 🧐
0
votes
0answers
13 views

How to make a Led Visualizer with USB audio input

I've been trying to figure how to get this to work or a while now, I've found a GitHub for a led strip visualizer called ledvis and it supposedly works with audio input, but the depository is very ...
1
vote
0answers
37 views

Raspberry PI 4 won't boot into desktop

Hey guys I'm stuck in a tricky situation :D Today I tried to rotate my touchscreen via adding a line in the libinput.config file. Something must have gone wrong because now when I boot just the ...
0
votes
1answer
41 views

Updating from such a repository can't be done securely (Raspberry pi)

I'm running a 3B+ with Raspbian and I have a problem updating my raspberry pi 3b+ pi@server:~ $ cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" NAME="Raspbian GNU/Linux&...
0
votes
1answer
23 views

Jon Eskdale's Touchscreen dimmer

I have the official 7" touchscreen installed on a Pi 3B running Strech V9. I have installed the touchscreen-dimmer project from the Github repository & followed the readme.me the screen dims ...
0
votes
1answer
26 views

MG 996R Micro servo Using Raspberry

I have a MG 996R micro servo which I am using with a Raspberry Pi and Python. It seems that this servo is not working with Python. I have tried experimenting the values, increasing and decreasing of ...
0
votes
0answers
27 views

Can the same SD card be used for Raspberry Pi Zero and Raspberry Pi 3A+ that is to be accessed wirelessly (SSH & wpa_supplicant)?

I wanted to use an older Raspbian 9 (Stretch) version of 2017/2018 because I wanted to use the "perf" tool which is not available for the current version. But the previous version was not ...
1
vote
2answers
35 views

Use dropbox client on Raspberry Pi B+ Linux raspberrypi 5.4.51+

I am trying to install dropbox client on my raspberry device: Raspberry Pi Model B Plus Rev 1.2 % Linux raspberrypi 5.4.51+ #1327 Thu Jul 23 10:53:06 BST 2020 armv6l GNU/Linux based on instructions ...
0
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0answers
31 views

Shutter delay for camera used with Pi

I am reading about shutter delay involved with digital cameras here. I checked cameras available for Pi on amazon (camera1 and camera2). I wanted to ask if anyone knows what kind of shutter delay is ...
1
vote
1answer
54 views

Pi 4: SD Card or USB SSD?

I'm currently using my Pi4 as a NAS with OpenMediaVault and i was thinking about moving the OS from the SD Card to an external SSD on one of the USB 2 Ports, since both USB 3 Ports are being used for ...
0
votes
0answers
57 views

Powering capacitive soil moisture sensor from 5V Pin

I'm completely new to RPi, and I'd like to make a garden project, at first I would like to measure the soil moisture. I purchased one of these sensors https://www.amazon.com/Analog-Capacitive-Moisture-...
0
votes
2answers
42 views

Copy text file from my raspberry pi to windows pc over ssh

I am using raspberry pi model 3b boards for my project. These boards are acting as BLE rssi scanners and are storing the rssi data in a text file (saved on desktop). Now, in order to analyze that data,...
1
vote
0answers
16 views

Connecting Mini GSM/GPRS Breakout 800L to Raspberry Pi model 4B

I am trying to connect my Raspberry Pi to a sim card that I bought so that is can send an SMS and access the internet, but I am struggling to connect the sim module to my Pi. I have attached a GPIO ...
1
vote
2answers
26 views

How can I delete Chromium browser history at boot up on Raspberry Pi-4 b

Playing the online game, Forge of Empires, I get the notice to clear cache. This is run in Chromium Browser on my Raspberry Pi 4 b 4Gb running Raspberry OS 32 bit.
0
votes
1answer
43 views

How to run Minecraft Server in the background properly

I have a Minecraft Server on a Raspberry Pi 4 that I would like to run in the background. Is there a proper way for me to do this? I hear there are other methods, such as ctrl-z, '&', etc. Which ...
-1
votes
1answer
34 views

Where the heck is WiringPi? [closed]

I was trying to run a program at boot, and whenever I tried it never found the wiringpi module. daveofeves told me try and use the exact file path, but I looked in literally every file on my pi and ...
1
vote
2answers
52 views

How do i start? [closed]

I'm a homebrewer looking into getting into the automation side of brewing. I'm setting out to get a part list together to expand my build and I've heard this sort if process can be done with the ...
0
votes
0answers
15 views

Having Trouble Pinging the Raspberry Pi 3B+ [duplicate]

I am unable to ping my Raspberry pi with the “.local suffix” yet it responds without the suffix. I have included some of the messages it is sending me when it boots below and included what I learned ...
2
votes
2answers
30 views

RP4 omxplayer installation problem

I'm trying to install omxplayer on raspberry pi 4 (Debian Buster x64) but I'm having so much trouble and can't install it. First of all I tried: apt update apt install omxplayer And had the following ...
0
votes
1answer
32 views

Non-working SD card - is it recoverable?

I've been using a Raspberry Pi 4 (headless) with camera module and Motion installed as a security camera. It worked pretty well for a while and then just stopped. I couldn't access it via ssh anymore ...
2
votes
2answers
48 views

How to code for Raspberry on ordinary PC [closed]

I am learning how to make things with Raspberry. For now I do coding right on the Raspberry. However, this is a very slow computer and I believe there is much more efficient way of working. How to ...
0
votes
1answer
33 views

Opening multiple serial port slows down USB speed

note that this is a duplicate of my question on stackoverflow I am currently working on a software that use Python3 (pyserial) to interface with a lot of serial port (~24) on a Raspberry Pi Compute ...
0
votes
1answer
41 views

SSH into Rasberry Pi 4 over USB (Ubuntu Core) [duplicate]

Is it possible to SSH connect via USB-C -> USB to Rasberry Pi 4 in Ubuntu? Like this
0
votes
0answers
26 views

Possible ways of 16khz sound input in raspberry pi 4

I am using the Teensy 3.2 development board for converting audio signals from analog to digital. Also, you can be called a custom USB sound card. Here I attached the Audio programming diagram. I am ...
0
votes
1answer
20 views

Compute module CM3+ change GPIO 37 alt function

I am trying to switch the alt functions on GPIO36 and GPIO37 on CM3+. I installed and ran the pigpiod service. I find that for GPIOs greaters than 27 that pigs command returns "no permission to ...
1
vote
4answers
50 views

power troubleshooting

I am trying to power a raspberry pi 3 over a long distance (5 meters). I can power the raspberry pi with the standard power supply from Raspberry Pi itself, but when I use these: https://www.digikey....
0
votes
1answer
37 views

PermissionError: Permission denied

I have a python program that imports gopigo. If I run the program under my user it works fine. I need to invoke it from shairport-sync service. when I do that I get the following error: Jul 27 19:35:...
0
votes
1answer
40 views

Unexpected Ping Response

I just got a new RaspberryPi 3B+ and have added an empty SSH file with no extension a wpa_supplicant.conf file that contains the following to my microSD card: country=US update_config=1ctrl_interface=/...
2
votes
0answers
35 views

Trouble updating Raspberry pi 3

I have a Raspberry Pi 3 Model B V1.2. I downloaded the latest, 2020-05-27-raspios-buster-full-armhf.img, installed it from Linux via dd. It runs. It goes through many reboots, updating and installing ...
0
votes
0answers
12 views

How can I display through resistive touch screen and hdmi monitor at the same time?

I have an application written in Python that working witht resistive touch screen. The problem is that I need to display it to a big screen for presentation purpose. The problem is I can only choose ...
0
votes
1answer
24 views

Change the read-only to write

I don't know why suddenly the following message has started to appear. -bash: cannot create temp file for here-document: Read-only file system I can't write files, only read, can't use tab to end ...
1
vote
1answer
34 views

How to install pi libraries to cross compile for pi-zero in wsl2

I started developing a dbus based code for pi-zero, and compilation is slow. I would like to cross compile in my PC to speed things up. I have WSL2(Ubuntu) setup on my PC and copied the pi toolchain ...
0
votes
1answer
19 views

Booting of RPi 3A+ fails for the Raspbian stretch 2018-03-13 and even for 2017-08-16

I have a 16GB micro SD card, on which raspbian strecth 2018-03-13 is installed (via win32diskimager, earlier formatted via SD card formatter). It works perfectly for my RPi zero model, but doesn't ...
0
votes
1answer
43 views

Enable Gigabit Ethernet on a Raspberry Pi 3B+ [closed]

I'm using a 3B+ rev 1.2 with a wired connection through a CAT7 Ethernet cable. Using speedtest I realised that I wasn't getting upload speeds higher than ~95Mbps, so I did a bit of research. pi@...
-1
votes
0answers
8 views

PHP requesting shell to run Python script failer (err int==1)

Script 1 (bash): checks if there is internet. Yes -- 1 to Q.txt No -- 0 to Q.txt Script 2 (php) if Q.txt == 0 go to wifiSetup.php wifiSetup.php Takes SSID, and encodes password as PSK, saves at wifi....
0
votes
0answers
11 views

nfs server on linux with windows 10 client

I have a nfs server on a raspberry pi 3 b+, that share an ext4 directory. The nfs client is a windows 10 computer. I have a problem with character encoding on client side. All accent characters are ...
0
votes
0answers
14 views

RPI 4 hdmi output glitching

I got a rpi 4, months ago, I haven't used it much since the time I got it...I recently turned it on, it looked fine at first but then the screen started to get a green horizontal dashes all over the ...
0
votes
0answers
30 views

I custom build rpi kernel that I misconfigured as the time specific syscalls return bad values. What steps should I take to debug this?

Jump down to edit 2 to see the most current information I have on this question. I am leaving everything else as a preamble explaining the situation. I am setting up my first RPi to be a home DNS ...
0
votes
0answers
21 views

Reading ECU via XCP with RPi

Hello is it possible to connect my RPi with the ECU of lets say my car over OBD interface and XCP and if yes how would I start such a project? I would like to apply remote analysis of my local ...
0
votes
0answers
31 views

Unable to boot custom built alpine image

I'm trying to build a custom Alpine Linux image for the raspberry pi. I'm using below script with some customisations, however, when I try to boot the image on the pi, I cannot get anything. The light ...
1
vote
2answers
41 views

Is there a better way to fix messed up wpa_supplicant and interfaces files on Windows?

Hello I am very new to Raspberry pi having got a Raspi 0 only a few days ago. The only way I know to access any of the code is by ssh-ing from my laptop into the pi, but it worked and I was very happy ...
-2
votes
1answer
27 views

WiFi stops working on Raspberry Pi when SD card reader is overclocked

I'm having a very weird problem where if I overclock the SD card reader on my Pi 3B+ using dtoverlay=sdhost,overclock_50=100 the wireless stops working. Raspi-config says 'No wireless interface found'....
0
votes
1answer
59 views

Raspberry Pi 4 unable to run aarch64 binary with aarch64 kernel

I followed this instruction to enable 64 bit kernel. https://www.raspberrypi.org/forums/viewtopic.php?t=250730 And I am pretty sure now my kernel is 64 bit. $ uname -a Linux RPi4 5.4.51-v8+ #1327 SMP ...
0
votes
0answers
7 views

I have Problem where the Ip Cam video is Lagging when RPi 3.5" inch (SPI) LCD is usedwith RPi 4

I have interfaced and IP camera with resolution 1280720 to Raspberry Pi 4 4GB and 3.5 " TFT LCD chinese version with xpt2046 controller (touch ..which is disabled)(resol 480320). I have ...
3
votes
2answers
98 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 ...
0
votes
1answer
21 views

I want to allow two instances of mPlayer to play music over a single bluetooth link to a speaker

I have an application which makes two uses of playing two files at the same time. The first is where it plays a white-noise file very quietly and continuously so that the sound-card does not go to ...
0
votes
1answer
31 views

double boot on the same PI

I have a pi for 2usages: retropi watch video from netflix into the pi-linux (standard) Today the pi boots with retropi interface direclty and if i want to watch videos i have to quit ...
0
votes
0answers
29 views

Boot Windows ARM on Raspbery PI4 from SSD via USB3 adapter

I want to test my dev on ARM devices. With an SDCard it's too slow, Windows is unusable. I do : I build an Windows 10 ARM ISO enable USB with "winpatch" put on SSD (via USB3-SATA adapter) ...
0
votes
2answers
24 views

Can I run NOOBS directly off of a Chromebook?

I have a good 64-bit chromebook and 16GB SD card. I want to use multiple noobs OSs, but my Pi was destroyed by my dog. Is this possible without buying a new Pi?

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