Questions tagged [pi-3b+]
Use for questions specific to the Raspberry Pi 3 Model B+
443
questions with no upvoted or accepted answers
3
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0
answers
581
views
Poor performance with LXD/LXC. Extremely high CPU steal in the containers
I've got a pi 3 B+ running Raspbian 10. I installed LXD using a snap package.
There's two LXC containers running on my machine. One is an nginx reverse proxy and the other is running pihole.
Both ...
- 131
3
votes
0
answers
998
views
Connect with VNC to RPI 3B+ via Bluetooth
I want to do VNC via Bluetooth between my Raspberry pi 3b+ and an android phone.
Some forums say that bluetooth technology is so slow to connect VNC via a DUN network, but I was doing some research ...
- 149
3
votes
0
answers
1k
views
uv4l usb camera stream not working
I am using a raspberry pi 3b+, trying to make the usb camera work with uv4l streaming.
These are the packages I've installed:
uv4l uv4l-raspicam uv4l-raspicam-extras uv4l-server uv4l-uvc uv4l-...
- 31
3
votes
0
answers
202
views
Configure AlexaPi to use bluetooth speaker connected to my Raspberry Pi 3B+
I am trying to clone Alexa on my RaspberryPi 3B+. Following are the links which I am following.
https://github.com/alexa-pi/AlexaPi
https://github.com/alexa-pi/AlexaPi/wiki/Installation
I have done ...
3
votes
0
answers
644
views
webcam issue after UV4L installation
I am trying to make a usb webcam work on my rpi but it drives my nuts.
I have Rpi 3 model B+
Also I've downloaded the newest raspbian image (stretch with desktop and recommended software). It's ...
- 131
3
votes
0
answers
782
views
Install Windows 10 IoT on 3B+?
I bought a 3B+ a few months back and have been experimenting with it with Raspbian, but I recently discovered it is possible to run Windows 10 IoT on it and since I am mainly a C# developer, I want ...
- 131
3
votes
0
answers
860
views
BLE Connect fails with page timeout
I've got a custom BLE 4.1 device and I'm trying to connect it to Raspberry PI 3 B+ using hcitool, gatttool, bluetoothctl, ..., without success.
The device is an NRF BLE chip with the Nordic UART ...
- 131
3
votes
0
answers
105
views
Google assistant on RaspberryPi3
I need help as I am stuck doing a project. I followed the tutorial on google developers website " https://developers.google.com/assistant/sdk/guides/library/python/extend/install-hardware" and got the ...
- 31
3
votes
0
answers
199
views
Are the camera and display connectors of my 3B+ soldered the wrong way around?
I recently purchased a new 3B+ board and although the board board itself is working fine, I can't get the PiNoir camera to work.
The camera works fine on an another 3B board.
I tried several tricks on ...
- 131
3
votes
0
answers
851
views
Accelerated Numpy on Pi 3 B+
I'm looking to do some work with NumPy on my Pi 3 B+, and I'm not sure what the deal is with optimization, blas, etc.
I installed libatlas using:
sudo apt-get install libatlas-base-dev
Following ...
- 131
3
votes
1
answer
1k
views
Raspberry Pi Internet Issues
On my raspberry Pi 3B, attempting to access the internet for downloads fails. Anything that uses it (chromium, apt-get, etc) does not work, giving errors such as DNS server not found, or just hanging. ...
- 139
2
votes
0
answers
114
views
RPi 3B+ & Yocto & U-Boot : free UART pins to be available for a RS232/485 HAT
I have the following hardware/software setup:
Sferalabs StratoPi Base (Raspberry Pi 3B+ with a HAT for RS232/485)
Distro built with Yocto and meta-raspberrypi on thud branch
U-Boot
SysVinit
I want ...
- 21
2
votes
0
answers
1k
views
Postgres ERROR: SSL SYSCALL error: Connection timed out
I wanted to develop an app with Python that would run on a Raspberry and be remote controlled. This app should control (switch on and off) 2 leds based on the current day, time and the user's ...
- 21
2
votes
0
answers
77
views
How do I turn an brushless dc motor 1 cycle per second using pigpio and c++
I am using an esc and a bldc and im trying to slowly spin my bldc
I can get my motor to spin with
gpioServo()
but when I use
gpioPWM()
It just continues to beep
when i use
gpioServo()
it spins way ...
- 29
2
votes
0
answers
55
views
Raspberry PI 3B+ losing connnection
I have a problem with my raspberry. I can connect to it using putty(ssh) or VNC Viewer, but after few minutes the connection drops.
I still see it listed when i go to "connected devices" on ...
- 21
2
votes
0
answers
415
views
Wireless display with Raspberry PI 3
So, I Googled around for this, but it feels like almost all questions on the internet about this kind of thing are "how to stream from my laptop to my pi".
I was wondering about the other ...
- 121
2
votes
3
answers
888
views
Raspbery Pi 3B+ - My USB ports don't work, but ethernet does
This is a pretty short question.
My ethernet port works, but none of the usb ports seem to do anything when I plug anything in them. This is the case with a fresh raspi os image.
How can I debug this?
2
votes
0
answers
503
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 ...
- 141
2
votes
0
answers
913
views
Stream from USB webcam to rpi3+ hdmi screen
I'm looking for something I think should be simple, but haven't been able to find any resource that shows how to do it.
I have a USB webcam attached to my PI 3+. I also have a monitor attached to the ...
- 121
2
votes
0
answers
541
views
Raspberry Pi white screen after several days what is the problem
I have a Raspberry Pi that is connected to a touchscreen via HDMI.
After several days the screen becomes white and it does not work anymore.
When you reboot the Pi it works again.
The Pi is used to ...
- 21
2
votes
0
answers
97
views
Problem in initiating i2c driver module for bmp180 i2c based sensor at kernel level
For leaning purpose i am writing a i2c client kernel module for bmp180 pressure sensor.
My kernel code is ->
#include <linux/version.h>
#include <linux/module.h>
#include <linux/init....
2
votes
0
answers
129
views
rPi 3B+ boots with no activity light or ethernet
I’ve been using a 3B+ headless for several months. Yesterday I rebooted like I normally do using sudo shutdown -r now. It shut down, but wouldn’t boot up again. I figured I had done something to the ...
- 185
2
votes
0
answers
166
views
Raspberry Pi OpenVPN connects, but no internet access
I am trying to make a VPN to my Raspberry Pi 3 B. I followed this video and installed OpenVPN in order to do it. I did the dynamic DNS thing and also port forwarded port 443 because I chose TCP since ...
2
votes
0
answers
29
views
Button hardware for RPI
I have the following circuit:
I am wondering if this configuration will work if I'm trying to add buttons.
I wanted to set them up as GPIO=GPIO.PUD_DOWN and to have it activate on the rising edge, ...
- 99
2
votes
0
answers
254
views
Raspberry pi 3b+; buster touch events
I am a beginner with the raspberry pi and trying to get my hands dirty on RPi 3b+, OS- Buster, 7 inch HDMI- touch screen.
I am trying to build simple gui with one button and one label to display a ...
- 21
2
votes
1
answer
279
views
Timed trigger for GPIO input
I'm running a raspberry pi system that records fish as they swim passed an IR break beam sensor at a fish ladder. So far the system works well but I'm trying to cut down some of the false triggers. ...
- 41
2
votes
0
answers
551
views
How to debug headless WiFi connection?
I'm trying to run Raspberry Pi 3B+ in headless mode: I'm doing this by placing ssh and wpa_supplicant.conf files in the root of the boot SD card folder.
What I can do if something went wrong?
Is ...
- 405
2
votes
1
answer
1k
views
systemd-networkd: Bond Ethernet and Wifi (USB Dongle), AP with Raspi 3b+ on board Wifi
Raspbian Buster Lite, Raspi 3b+
I want to bond ethernet (eth0) and a USB wifi dongle (wlan1) for network/internet access. This part I've managed with success, dynamic failover works perfectly.
The ...
- 41
2
votes
0
answers
464
views
How to access bluetooth controller on `/dev/input/js0` as user/group?
I'm working on an application that is reading an XBox controller connected via bluetooth. After configuring it (see https://pimylifeup.com/xbox-controllers-raspberry-pi/), I noticed that only root has ...
- 121
2
votes
0
answers
215
views
Touchscreen calibration: touchscreen does not cover full display
I have purchased an industrial touchscreen monitor that supports Linux through PenMount drivers. The VGA video output (via HDMI adapter) works perfectly, and the USB touchscreen is perfectly ...
- 21
2
votes
0
answers
74
views
Powwering Raspberry pi 3 with Li-ion battery
I use MT3608 boost converter in order to convert Li-ion voltage to 5V for RPI, but when I connect battery, RPI doesn't boot up. When I check output of MT3608 it is 5V but it can't tolerate peak ...
- 21
2
votes
0
answers
286
views
Dropped wifi packets from Pi Zero W to Pi 3B+
We're trying to build a system where a master Pi 3B+ controls a dozen (or more) Pi Zero W clients - all running the latest raspbian (as of 18:00 EDT today) - in an isolated WiFi island (no ...
- 21
2
votes
0
answers
132
views
Image rollback using Raspberry Pi Bootloader
I'm using Yocto framework based RPi build and have created My SD card partition as follows,
======================== SD card with 3 parts ========================
| 68MB(bootloader) | 4GB(...
- 21
2
votes
1
answer
288
views
Is there a way I can boot up an already shut down Raspberry Pi without physically accessing it?
I have a Raspberry Pi 3 B+ which is currently shut down, and not appearing on my network.
The Raspberry Pi is running MotionEyeOS. And is powered using power over ethernet.
I've tried starting it by ...
- 129
2
votes
0
answers
5k
views
Raspberry Pi 3 B+ - Error: Driver 'sdhost-bcm2835 is already registered, aborting. What is that and how to solve it?
I have a Raspberry Pi 3 B+ and a microSD 64GB.
I am going trough the boot process following this video.
This is what I have:
MicroSD card 64Gb (it is working) formated to FAT32 using MiniTool ...
- 143
2
votes
0
answers
2k
views
Disable mouse acceleration on Raspbian Stretch
I can't figure out how to change the mouse acceleration setting such that the change is persistent. Changing the value in the Preferences > Keyboard and mouse settings keeps resetting every time I ...
2
votes
1
answer
9k
views
Difference between iface wlan0 inet manual and iface wlan0 inet dhcp in wifi to ethernet router?
I have developed a wifi to ethernet router. Wifi is connected to my home router having internet and ethernet is connected to my laptop( just for testing).My laptop is not getting internet, but it gets ...
- 201
2
votes
1
answer
3k
views
Rpi3b+ to Rpi3b+ jtag/SWD connection and OpenOCD
I'd like to hook together two Raspberry pi 3b+ to use jtag/SWD with OpenOCD. I learned it can be done, but implementing it has proven challenging. I have two questions:
How to connect the Rpi's. If I'...
- 871
2
votes
1
answer
530
views
Trying to run a C# Discord Bot on Raspberry Pi 3 Model B+ with Windows 10 IoT
I have developed, in Visual Studio 2015, a C# Console Application which uses the Discord.Net API. It works great running on my PC, which has Windows 10, however I am looking to run the program 24/7 on ...
- 21
2
votes
0
answers
263
views
How can I force the Pi to wake a monitor
This question is not specifically a Pi question, but about how to FORCE the Pi hdmi to wake my monitor from sleep, which seems to be a seems to be specific to the Pi hardware, although it may be a ...
- 58.6k
2
votes
1
answer
5k
views
3B+ fails to boot Ubuntu mate
I have the problem that the bootloader and kernel are too old in the mate image to run the on the new hardware.
Raspian works fine with a noobs install.
I tried the advice in the thread here
https:...
- 29
2
votes
1
answer
2k
views
How to split a display into many and access all the screen
I'm trying to split the screen in raspberry-pi.
and access each screen for each display
I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
- 31
1
vote
0
answers
25
views
Pi 3B+ (several of them ! ) no longer perfortm USB boot
All 5 of my 3B+ no longer perform a USB boot, from USB stick. Problem first noticed where OS was MoodeAudio and a HiBerry Hat was in use. Other similar systems (using diferent 3B+'s with different ...
- 11
1
vote
0
answers
735
views
Specified qdisc kind is unknown when using tc netem to emulate latency on Raspbian
When I tried to emulate latency using tc. I get the following error on Raspberry Pi 3B+.
sudo tc qdisc replace dev eth0 root netem delay 100ms
Error: Specified qdisc kind is unknown.
These are the ...
1
vote
0
answers
18
views
2 LCD screens 1 raspberry3B+
I got a raspberry pi 3 B+ and two small LCD screens, this one and this one
The first is attached on the gpio pins, the second one on the hdmi port
the problem is they are just mirroring each other, ...
1
vote
1
answer
144
views
LXDE-pi -- cannot show desktop on local monitor, but VNC is fine
I'm setting my RaspberryPi 3B+ (Debian Buster) up as a magic mirror. I've run into a really weird issue that I can't wrap my brain around.
The magic mirror software is basically an EletronJS app, ...
- 11
1
vote
0
answers
38
views
Respond to GPIO in fastest way possible
I'm trying to respond to a trigger from a ~1MHz clock and I'm having trouble doing this in the time required (under 400ns). I'm using a Raspberry Pi 3b+ and I've seen benchmarks of 50Mhz+ for toggling ...
- 111
1
vote
1
answer
113
views
Create Wireless Hotspot doesn't work
I want to turn my Raspberry Pi 3b into a Wi-Fi Access Point, but i have the probleme as you can see in this image
1
vote
0
answers
51
views
No FIQ.h on Raspberry PI3B+
I was exploring the FQI routine for ARM processors. I noticed that most Linux kernels provide a fiq.h header file yet my RPi does not seem to have it. Using find does not return anything. My Linux ...
- 21
1
vote
0
answers
187
views
How to Define USB Port as a Stable Name on Raspberry PI 3B+
In my Pi,
on the /etc/udev/rules.d/10-local.rules file
ACTION=="add", SYMLINK+="USB4", ATTRS{devpath}=="1.5"
ACTION=="add", SYMLINK+="USB1", ATTRS{...
