Questions tagged [pi-3b+]
Use for questions specific to the Raspberry Pi 3 Model B+
1,171
questions
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Raspberry Pi ignoring wireless interface when wired interface is present
I have a Raspberry Pi 3B+ connected over ethernet to Network X, which is not connected to the internet. It's also connected using the WiFi interface to Network Y, which is connected to the internet. ...
- 101
0
votes
0
answers
10
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OMXplayer cannot seek in HLS stream
I am using OMXplayer to play HLS streams from NRK with a RPI3B+. Until now I have used dbuscontrol.sh to seek forward and backward in the streams, but suddenly it has become impossible to seek.
...
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votes
2
answers
40
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switch to a 64 bit mode?
I have an old B+ which I think is 32 bit but curious if this can be switched to a 64 bit mode??
Does this info help at all?
$ lscpu
Architecture: armv7l
Byte Order: ...
- 237
-1
votes
1
answer
35
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my Raspberry Pi 3B+ stops booting some time after work
my Raspberry Pi 3B+ stops booting some time after work. Different manifestations: either only the red LED flashes, or the green one blinks 4 times. This starts to show up after I reboot the board. ...
- 1
0
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0
answers
25
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Raspberry pi 3b+, 3 green flashes, no display at all
my raspberry pi 3b+ was used to catch flightradar 24 signals. Suddenly it stopped working. On close visual inspection there were signs of water droplets close to IO pins. Now it won't boot. Red light ...
- 1
0
votes
1
answer
33
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GPIO 2 Shut Down Not Working
I have a Pi 3B+ with an adafruit matrix bonnet. Im trying to shutdown the Pi with a single pole double throw switch I had laying around. I'm currently able to get the power on working through GPIO 3. ...
- 1
0
votes
0
answers
38
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Raspberry pi OS crashing
I am using raspberry pi 3B+ for a project. I have installed the bullseye which is currently the OLD STABLE.
The raspbian mirror that I am using is: http://ftp.tsukuba.wide.ad.jp/Linux/raspbian/...
- 11
0
votes
0
answers
25
views
Can't get simple assembly code to run on 3B+ board
I am writing a bare metal code to run on GPIO 4 on raspberry pi 3B+
.section .init
.globl _start
_start:
# pin 4 for 3B+
ldr r0, =0x3F200000
mov r1, #1
lsl r1, #12
str r1, [r0, #...
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-2
votes
1
answer
32
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Cannot install openCV in Raspberry Pi 3 model B+ where source list is Jessie
This is for the project the board is provided from our college
we are trying to install openCV on Raspberry Pi 3 model B+ but we cannot install cmake and openCv.
But we have encountered an error . one ...
- 1
0
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0
answers
38
views
Case for multiple different versions of pi
Firstly, I'm not building a cluster, but due to lack of space, I just want to put my Pis into one case where they can share power and ethernet (POE)
I currently have a Pi 3B and 4B with plans on ...
-1
votes
1
answer
93
views
Fastest Way to Flash OS Image to Raspberry pi SD card
I want to Flash OS Image in a Much Faster way , In network Boot Mode, Currently i am using DD Command to Flash OS to 32 GB SDCARD on Client raspberry pi 4 board, its taking 10mins for 6.5GB image size,...
- 13
0
votes
0
answers
50
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Are there different versions of raspberry pi 3B+? [duplicate]
I have one 3B+ card that was bought some time ago (maybe ~1year).
I have been using this as a testing PC.
Yesturday I recived two new 3B+ cards (rough visual inspection they look the same as older).
...
0
votes
0
answers
79
views
Raspberry Pi 3B+ freezes on cron reboot
I set up a cronjob on my Raspberry Pi 3B+ (1GB RAM) to reboot every morning, which worked fine for over a year. For three days, however, the RPi has been crashing immediately after reboot.
By “...
- 101
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0
answers
23
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Building a LoRa Gateway to capture all spreading factors and all bandwidths on Raspberry PI
As the title suggests, I have a substantial task at hand, so I'm unsure if I'll be able to cover everything in this message. However, I'll attempt to provide links to related questions if needed. I ...
- 101
0
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0
answers
27
views
HCIUART not working after Kernel Upgrade
For some experiments with BLE I did manually a kernel upgrade of a Raspberry Pi 3B+ by using (example; I tried a few versions of the official GitHub repository):
https://github.com/raspberrypi/linux/...
- 101
0
votes
0
answers
46
views
How to install Veloview for Velodyne on Rasberry pi 3 model b plus?
I have installed 64 bit rasberry pi os on rasberry pi model b plus, I have downloaded Veloview tar.gz file from their website that was under the linux 64 bit category. I am worried whether there is ...
0
votes
1
answer
26
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Raspberry Pi 3 model b+ does not give any output [closed]
For some reason my Raspberry Pi 3 model b+ does not want to boot and does not give any output signal. I tried several SD cards with fresh OS on them. What I noticed is that the green LED shows the ...
redstongamer
0
votes
1
answer
72
views
Brother Printer not in the CUPS list
I am using Raspberry Pi 3B+. I am making my printer - Brother DCP-T300 wireless using Raspberry Pi. But, I am not able to make it run.
In the option of choosing the make, Brother was not present.
So, ...
0
votes
1
answer
241
views
Troubleshooting "Failed to start dhcpcd.service on all interfaces" - Buster on Raspberry Pi 3
We have been testing "PiSignage", an opensource digital signage solution, on a Raspberry Pi 3 running Buster. We have a webserver that is hosting a webpage we intended on using as an "...
0
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0
answers
44
views
How is it made that NIC has name eth0 not usb0?
Raspberry Pi network card is internally a USB card. Why then it has name eth0 and not usb0?
I need to find a code, which is responsible for this.
I am simulating Raspberry Pi with QEMU and having a ...
- 175
-1
votes
1
answer
28
views
Raspberry Pi 3B cannot connect to wifi
I was trying to connect to wifi from my RPI3 running Ubuntu 22 server.
This is my conf file
/etc/wpa_supplicant/wpa_supplicant.conf
Ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
...
- 107
0
votes
0
answers
195
views
Unable to install mongodb on Ubuntu 22.04 on Raspbbery Pi 3B
So first I tried to install the latest version of mongodb on my raspberry pi running Ubuntu server 22. But as I was going through other answer the hardware config of RPI3 does not support latest ...
- 107
-2
votes
1
answer
211
views
turning on or off a gpio pin
Is there someone that knows how to simply turn on or off a gpio pin? I don't understand why rpi have to make it so hard. I hope someone gives me an answer, ask me if you don't understand the question. ...
- 1
0
votes
0
answers
17
views
dpkg fatal error while installing libxmlsec1:armh package
I am getting the following error while executing the following code on raspberry pi 3B+:
sudo apt install --reinstall libxmlsec1:armhf
It is to be mentioned that, I am using this code after removing ...
1
vote
0
answers
32
views
Problem controlling 3 servos of different types [closed]
I had a remote developer do code for 3 servos to control a mechanism. He made sure to aquire similar hardware. Rpi4 and 16channel pwm driver. He used 3 sg90 servos. I have 1 sg90 and 2 smaller servos....
- 11
0
votes
1
answer
105
views
DC Motor + goBILDA Speed Controller + Raspberry Pi 3b+ : Moves clockwise but won't move counterclockwise
I appreciate any help in this puzzling situation - I'm at a loss here.
As part of a Robotics project, I'm trying to control a motor with a Raspberry Pi. The exact components I'm using are:
A ...
0
votes
0
answers
13
views
first boot, login with ssh, only default user, no keyboard [duplicate]
I freshly installed Raspbian on my new Model 3 B. My Pi has an external touch display, which works, but I have no USB keyboard. Therefore I'd like to connect with my Pi via ssh to set it up and ...
- 101
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votes
0
answers
23
views
Problem Using Python CAN with Pi Can 2 Hat
I hope to find some answers here regarding a program of mine that doesnt seem to work! It is a modified version from https://rb.gy/blrhk . I am using the RPi in conjunction with an arduno uno with a ...
0
votes
0
answers
187
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Raspberry 3B+ Wifi not works anymore also with new OS/Sdcard.. broken chip? Please help!
EDIT:
On suggestions of @milliways I'm editing the question since he says that all the stuff I posted is irrelevant, and I have to "start fresh".
I installed again a new fresh image of ...
- 1
0
votes
0
answers
30
views
Raspberry Pi 3B+ has erratic network connections (both Ethernet and Wifi)
Running a Raspberry Pi 3B+ for several months.
The week or so, both the Ethernet and the Wifi started cutting out frequently for short periods.
At first, I thought it was just dropping packets, but a ...
- 1
0
votes
1
answer
47
views
Why can't I SSH into my Raspberry Pi 3b+ after a variable period of time?
On boot, I can successfully SSH into my pi. Then when I exit the session, I can immediately SSH back into it but if I wait some variable length of time (usually a few hours but sometimes more and a ...
- 1
0
votes
0
answers
20
views
PostgreSQL directory on SSD
I have a Raspberry Pi 3 on my network with PostgreSQL installed on it.
At first, I had some tables installed on it, and saved on SD, and it worked perfectly. I had enabled entrance from the network ...
- 1
0
votes
0
answers
21
views
Waveshare display acting wierd
I am using a waveshare 7inch display it was working well but today when i connexted it to raspberry pi the output is unexpected
Please help me out
Thanks in advance
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1
vote
0
answers
105
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Receiving push messages sent through my phone (Android) to my Raspberry Pi via Pushbullet [closed]
I am already using the Pushbullet API via python running on my Raspberry Pi 3 B+ to send push notifications upon certain events, that I receive on my Android phone. I would like to also send back ...
- 31
0
votes
3
answers
281
views
Raspberry Pi 3+ "brownouts" and under voltage issue with good power supplies
My raspberry pi 3+ is showing undervoltage warning. I know this is a common issue and I've done a fair bit of trouble shooting, so please keep reading.
At first, I tried powering my raspberry pi with ...
- 103
0
votes
2
answers
207
views
Low power warning when using pi with touchscreen
I’m using a raspberry pi 3B with this DSI touch screen from waveshare.
As a power source I’m using this battery hat, which according to the documents should provide 5V. The battery is also fully ...
- 101
0
votes
0
answers
67
views
Raspberry Pi SD Card Reader Overheat?
We have Raspberry Pi 3B, and tried plugging it in after trying to supply power using the GPIO pins but to no response. We tried to turn it on again using the cable charger we initially used but only ...
0
votes
0
answers
454
views
Raspberry Pi Camera: Picamera2: Cannot configure camera in the middle of a stream
I'm making a remote config PiCamera for astrophotography, using the official Camera Module 3. When the user configures the camera, my application sends a request in JSON format over an HTTP socket. ...
- 113
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
0
votes
2
answers
254
views
Can I run Raspbian OS and Octoprint os on same SD card?
I am working with Raspberry pi 3b+. I have installed Raspbian OS on the SD card. Now, I have to install Octoprint on raspbian os system. How to do it?
While installing Octoprint from raspberry image ...
4
votes
1
answer
3k
views
Remmina does not connect to Raspberry Pi Bullseye after RealVNC-server update
The Problem:
I have a Raspberry Pi I connect using the VNC client Remmina from Ubuntu 22.04. Recently the realvnc-vnc-server was updated in the Raspberry Pi. Since the update the connection from ...
- 474
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
654
views
Raspberry pi camera module 3 works only on libcamera
I recently bought a Raspberry Pi 3b+ and Camera module v3. After days of troubleshooting, I got the camera to spit out images on the libcamera CLI. But, I can't create a picamera.PiCamera object in ...
- 113
1
vote
3
answers
304
views
Checking angle of servo motor with a Raspberry Pi 3B+
I was trying to check the angle of a servo motor using my Raspberry Pi 3B+. Although when i run the code the servo motor jumps to 90 degrees (physically) and returns an angle of 0.0 in the terminal. ...
- 11
3
votes
1
answer
146
views
After kernel update windows appear stuck in the corner
After updating with apt yesterday, all new windows show up cropped in the upper left corner of the screen. See screenshot. I do not know if this is related. I have set the Desktop Preferences to ...
- 33
0
votes
0
answers
66
views
LAN7515 replacement USB controller chip
a defective video cable shorted pin 1 + 2 of GPIO shortening QFN regulator MXL7704-03. Replaced and WORKING but
LAN7515 which has built-in USB controller had fried too and USBs DONT WORK!!! i DONT ...
- 9
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
0
votes
2
answers
134
views
Unable to connect to raspberry pi 3b over minicom
I want to connect to my raspberry pi 3 model B V 1.2 to minicom using serial cable. I have attached serial cables to correct pins like this.
image of my setup
I have installed raspbian from the ...
- 101
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