Questions tagged [pi-4]

For questions that apply specifically to the Raspberry Pi 4 and not other/all models.

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4 views

Why is my Webserver not accessible outside LAN? [migrated]

so i tried to set up my first web server using a raspberry pie. It all works great in my local network, from every machine and using both 192.168.178.59, which is my Pi's local ip and using the global ...
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2answers
7 views

Fan won't turn off on shutdown

I am trying to make sure my fan turns off when I power off my raspberry pi (without having to unplug it). My fan is connected to the 3.3V pin. I didn't connect it to the 5V pin because I deemed the 3....
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1answer
13 views

How do I pair an Apple Magic Trackpad 2 with RPi4?

Can an Apple Magic TrackPad 2 be paired with a Raspberry Pi 4 , so that I can control the Raspberry Pi 4 with the TrackPad 2 via a wireless connection ? If so, how do I set up the wireless connection ...
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1answer
24 views

Can't install sox on raspberry 4b

Here is what I get: pi@raspberrypi:~ $ sudo apt-get install sox Reading package lists... Done Building dependency tree Reading state information... Done Package sox is not available, but is ...
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0answers
17 views

Puffin browser on raspberry pi 4 64 bit

I need to run puffin browser on my raspberry pi 4 running kali linux which is a 64 bit os.The deb package puffin.com offering is armf that is for 32 bit operating systems. I need arm64 version of ...
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0answers
20 views

How to power PCA9685

I am using the RP 4B and am trying to control a servo with the PCA9685. Unfortunatelly I am very new to all that and therefore I don't know which specific components I need to power it up. I bought a ...
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1answer
13 views

PiCamera V2 NoIR and AMG8833 thermal sensor mmal_vc_port_enable: failed to enable port vc.null_sink:in:0(OPQV): ENOSPC

Hardware used: Raspberry pi 4b, 4 gb ram, AMG8833 thermal camera, PiCamera V2 noir, ALL brand new, i just bought them few weeks ago. Im trying to do finish a project and i ran into a not that good ...
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0answers
12 views

Change slew and driving current GPIO raspberry Pi 4

When I generate a clk signal 2.4MHz usign GPIO4 and internal PLLD I obtain a signal that seems to have a driving limitation. I have seen that for previous Raspberry models there are PAD registers ...
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0answers
18 views

I'm not sure how to use putty while connected to a sensor

I'm trying to follow this tutorial. I'm a bit lost on how I'm supposed to be using putty while still being connected to the sensor, since both the sensor and the serial cable connect to the same pin. ...
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1answer
40 views

Raspberry pi with HDD and SSD not booting on reboot

I have a Raspberry Pi 4 B with 2 disks connected via usb. One is an SSD and the other is an HDD. Both of them are in SATA to USB cases that have their own power supply each. I've configured the Rpi4 ...
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0answers
11 views

SSL certificate for multiple dock containers running on RPI 4

Hi guys I have a question regarding docker containers and ssl certificates. I want to install more than one docker containers like pi hole , Bitwarden and motioneye . To access them I have to type ...
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0answers
15 views

How to change desktop theme using a .sh file? (RASPBERRYPI OS)

I have been playing around with raspberrypi os and the hardware its self. But besides i have a question i wan to ask, How do you change the desktop theme of raspberrypi os using a .sh file? Or is it ...
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1answer
23 views

Raspberrypi4B: Unable to establish a BLE connection between RPi4B and Ubuntu Laptop

I am unable to establish an ble connection between my Raspberrypi4B and Laptop. Configuration is as below: Laptop: Ubuntu-20.04.2 LTS, bluez version: 5.53 Raspberrypi4B: Ubuntu-21.04 bluez version: 5....
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1answer
38 views

Is there a way to connect a serial cable to my pi while it is connected to my breadboard?

Currently I have my pi connected to my breadboard using a cobbler and breakout cable so I can connect some sensors (DHT22 and BMP280). Is there are way I can also connect my serial cable to it so I ...
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0answers
18 views

Raspberry Pi 3B as Access Point for Windows 10

So, I have my new Pi 3B with Raspberry Pi OS installed, and my Pi 400 with a build of Windows 10 Insider preview with an ISO that I MYSELF LEGALLY built from Microsoft's arm64 UUP servers. So I want ...
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17 views

Raspberry Pi 3+ / 4 wifi connection problem

I am setting up the RPis 0W, 2, 3, 3+, and 4 for some tests. For the connection to the internet, I use WiFi. The setup worked as expected till the Pi 3+, which refused to connect to the router. Then I ...
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0answers
25 views

How do I get MySQL-Python?

The tutorial I am using says to use easy_install MySQL-python, I'm getting the error easy_install: command not found. I have tried sudo apt-get install python-setuptools as well as the solutions ...
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0answers
34 views

Can't connect to Raspberry pi 4B via WAN IP

I have installed and configured owncloud 2 months ago and port forwarded ports 443 and 80 on my router. Back then it worked flawlessly, but now it does not for some reason. The Owncloud server works ...
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0answers
14 views

Model error while running yolo.py file on Raspberry Pi 4 [closed]

I am trying to run the yolo.py file from this forked repository https://github.com/jaskiratsingh2000/yolov5 on the raspberry pi 4. When I use the following command in my windows machine. it totally ...
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1answer
185 views

What is this 8-pin fpc place On RPi 4?

I was looking at my Raspberry Pi 4B and I saw something like a not soldered place for fpc connector and I got curious what is that!??? just Look under USB2 at top right corner in the image bellow.
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0answers
34 views

Getting error easy_install: command not found

I have done sudo apt-get install python-setuptools, when I try to run either easy_install -U distribute or easy_install MySQL-python I get the error easy_install: command not found The tutorial I am ...
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0answers
22 views

Raspberry pi and Fusion 360 [closed]

I am thinking of buying a raspberry pi 4 4GB or 8GB. If I install windows 10, can I run fusion 360 without lagging?
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0answers
21 views

Raspberry pi 4 gives vertical color lines on bootup

I am using a Raspberry pi 4 model B 4GB with ubuntu 20.04 installed on a 32GB memory card and when I booted, I got a display with vertical color lines. I tried using multiples displays and all results ...
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1answer
23 views

Kodi unusable on RpiOS desktop

I have raspberry piOS with i3 desktop. I followed the instructions on this page, which describes official tweaks for rpi4 and Kodi. Initially I set the gpu mem value to 1024 and it wouldn't boot. So I ...
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0answers
16 views

Raspberry Pi 4 won't connect to hotspot created by laptop running ubuntu 20

I am working on a project where I need to connect my RPi 4 to a laptop hotspot. Everything was running OK when I had Ubuntu 18 LTS installed on laptop. After I switched to Ubuntu 20 LTS, RPi 4 won't ...
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1answer
34 views

I would like to install blender on my raspberry pi4 [closed]

I am trying to install blender 2.79 from the software packages on my new raspberry pi4. It won’t do it. How do I install and run blender?
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0answers
19 views

Raspberry pi OS screen seems to dim on low lit desktops

I have a raspberry pi hooked up to my screen, all the ambient light dimming features of the screen itself are turned off. There are two desktops (dwm), one with Terminator open and the other with ...
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1answer
30 views

Unable to install TVHeadEnd PVR client - Missing PVR Clients add-ons section in Kodi

I have followed theese quides: how-to-stream-digital-tv Kodi on Raspberry Pi OS / Raspbian Buster Installed KODI on RPI 4B. Also have installed working TVHeadend server. But cannot get ...
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0answers
25 views

how to play the multimedia as long as the rfd tag is placed on mfrc522 sensor and stop as the user takes the card away

I am working on a project where the user can play media using rfid tags. The file name is written into it when user places the card on the MFRC522 sensor, the corresponding media starts playing. I ...
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2answers
30 views

Raspberry Pi 4 does not respond ssh

My setup is a RaspberryPi4 with SSD (Kingston 120GB) as boot drive. It has also a regular HDD connected to it. Both hard drives are connected to a USB dock via 3.0 USB. The dock has also a power ...
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1answer
52 views

Trying to debug why the magnetic sensor of my MPU9250/6500 Gyroscope Acceleration Magnetic Sensor won't connect via I2C but all the other sensors will

I am trying to debug why the magnetic sensor of my MPU9250/6500 9-Axis 9 DOF 16 Bit Gyroscope Acceleration Magnetic Sensor IIC/SPI won't connect to my Raspberry Pi 4+, but all the other sensors will. ...
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0answers
13 views

Noise on interrupt pins while using Hardware PWM

i have been using the RPI4 to control 2 brushless motors with encoders, using 2 PWM signals to the motor driver, and reading both 3.3 V encoders(2 channel resolvers each) using interrupts. If i move ...
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1answer
29 views

Pi4 mass storage gadget and powerbank powered

I'm planning on using a pi 4B to act as a usb mass storage via a gadget module on the usb-c port. However, I want it to keep being powered when the usbc power is down, to finalise it's internal tasks. ...
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0answers
12 views

Strange issue with wifi (works only with hdmi)

I have set up wifi connection from GUI and raspi-config. In both cases after reboot rpi does not connect to wifi network. There is one strange thing. If I connect rpi to hdmi it suddenly connects to ...
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0answers
7 views

Take pic and store with multi cam adapter module

Im working with Raspberry PI4, two night vision camera modules and multi cam adapter module. I need to take pictures and store it on the desktop. How do I do that?
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0answers
14 views

uart2-5 Raspberry Pi 4

I am using an Raspberry Pi 4 os-ubutun-mate 20.04(focal) I am trying to to enable uart2 and uart3 on my Raspberry Pi 4. However, I'm not sure how to do this? I've read several articles and posts ...
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0answers
16 views

Irsend and irw not working simultaneously

I am using irsend command in lirc library to send ir signals through an ir transmitter. At the same time, i want to receive ir signals from a ir remote. But irsend and irrecord commands in lirc ...
0
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1answer
41 views

Pi 4: No Composite Video Out

I have a Pi 4 Model B Rev 1.2. I'm unable to get the composite video out to function. I think I have enabled the composite video out and set up NTSC 4:3 correctly by including the following in my ...
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0answers
25 views

How to recognise which button is pressed in ir remote using lirc raspberry pi?

begin remote name Samsung_BN59-01175B bits 16 flags SPACE_ENC|CONST_LENGTH eps 30 aeps 100 header 4676 4367 one 685 1557 zero ...
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0answers
30 views

Python Errno 2: No such file or directory

Im trying to load a stockfish engine for a largre segment of code. I get the error FileNotFoundError: [Errno 2] No such file or directory: '\\home\\pi\\Documents\\stockfish_20090216_x64_bmi2.exe': '\\...
1
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1answer
25 views

Error 121: Remote I/O error in smbus.py call

I have four MCP23017's connected to a Rpi4 on i2c bus 1, and a HT12K33 on bus 2 which is on gpio pins 27 and 17. I made a chess board with the MCP's checking reed switches for open/closed, hence the ...
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0answers
19 views

ERROR for pi4: mmal_vc_component_enable: failed to enable component: ENOSPC

Please help as I'm going mad! im using 2 cameras on the multi cam adapter module on a raspberry pi 4. I followed the Arducam multi cam adapter module documentation. I have been getting this error ...
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0answers
17 views

Mount SMB share while being able to change owners

It's pretty hard for me to explain what I'm actually looking for. So I'll describe what I'm trying to achieve: I'm running Ubuntu 64 bit, docker with Traefik 1.7 and Portainer on my RPI 4 Now I'm ...
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0answers
14 views

Python and Systemd - Service file can't find the moudle [closed]

so I have this issue with systemd despite having async praw installed. I've tried using python 3.7 but even that does not work
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0answers
58 views

RPi4 won't power on from 5V if any load is present on 3V3

The short version: Raspberry Pi 4B, rev 1.1, doesn't turn on when provided with 5V on the pins 2&4 if any load is present on the 3V3 (pins 1&17). However, powering the Pi from a USB-C source (...
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0answers
31 views

How to emulate the raspberry os on the jetson nano with qemu-kvm

I'm trying to install this repository on my emulated raspbian-bullseye / raspberry pi-bullseye os : https://github.com/stantonious/ss-apps It requires a raspberry board,but I haven't one. For this ...
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2answers
18 views

How to check if wiringPiSetup() was run

I am working on a C++ project using several objects that use wiringPi. When I initialize the objects each runs wiringPiSetup() in their constructor. If I test the objects individually all o them work. ...
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2answers
22 views

User getting removed from group after reboot

I am running Ubuntu Server 20.04.02 LTS in my RPi 4b. I ran into the problem that I couldn't access the GPIO without sudo/root with my python scripts so I changed the /dev/gpiomem group ownership to ...
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0answers
47 views

My rfid-rc522 reader stops reading after some time, how can I debug it?

I'm using the reader below to read mifare cards (13.56mhz), I have an electron/node.js application for this. For some reason after an uncertain amount of time(shortest time I noticed was about 30 ...
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0answers
28 views

RPI-4 Bluetooth board does not find iOS devices

On a brand new RPI-4, I cannot find apple iphones neither using module bluetooth nor bluez package. I tried to scan for BLE devices and all the command line tools such as bluetoothctl and hciconfig to ...

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