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Questions tagged [pi-3b+]

Use for questions specific to the Raspberry Pi Model 3 B+

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73 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 ...
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185 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 ...
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0answers
42 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 ...
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0answers
34 views

Chromefy (Chrome OS) on RPi3B+?

Has anyone tried using Chromefy (a way to get official Chrome OS on any device) or similar Chromium OS releases on the RPi3B+? If so, which one works best?
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44 views

Low video quality with h264_omx encoder

I have a Logitech C922 webcam and I'm recording using ffmpeg with this settings: ffmpeg -thread_queue_size 1024 -f alsa -r 16000 -i hw:1,0 -f video4linux2 -thread_queue_size 512 -s 1920x1080 -i /dev/...
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34 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'...
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49 views

Problem autostarting pigpiod

On my Pi3B+ I had pigpiod configured to run on boot and I can successfully run compiled c programs; specifically DHTXXD.c which contains:- /* DHTXXD.c 2016-02-16 Public Domain */ #include <stdio....
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70 views

Android RPi bluetooth disconnects after pairing

I'm trying to set up some simple communication between my RPi 3B+ and my phone One Plus 3, but when I try to pair the RPi, it gets disconnected a few seconds after pairing, and disappears from "Paired ...
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37 views

Using Bluetooth to transfer data between two Pi's

I am using two Pi 3B+'s, one is a calculator without a screen, the other one is the human interface with a screen. I would like to command the calculator with the other Pi via Bluetooth. I am using ...
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0answers
33 views

Ethernet Indicator led on pi 3B+ not glowing

I am a newbie to Raspberry Pi and recently bought Raspberry pi 3 B+. I first downloaded and burn the minibian on sd card as some course suggested minibian. But whenever I connect pi with power, only ...
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62 views

PI NOIR Camera Not Working

I recently bought a Raspberry Pi 3B+ and a Pi Noir Camera and attempted to set them up. I followed the install instructions on the Pi website for the board and camera, and unfortunately received an ...
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160 views

Slow Chromium on Raspberry Pi 3B+ after update from Jessie to Stretch

I've been looking into my problem for days now and I didn't find a solution to it. If there is already a question about this issue, I have not found it, my apologies. Please direct me to it if there ...
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0answers
100 views

Bare Metal RPI 3B UART not working

I have referred many tutorials to get UART working in bare metal environment on RPI 3. https://github.com/dwelch67/raspberrypi/tree/master/uart05 https://github.com/mrvn/RaspberryPi-baremetal/tree/...
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48 views

Jackd problem on RPi3 B+ Stretch

I'm running Stretch on an RPi 3 B+. I have a C-Media USB sound card showing up as: card 1: Device [USB Audio Device], device 0: USB Audio [USB Audio] and ALSA recognises it as the default card ...
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44 views

Safe GPIO configuration for powered-down RPi?

I have a RPi3 driving a robot and I've built a dual H-bridge circuit to run it. I have seperate fuses for the RPi and the driving circuit and I'm glad I do! Trouble is, when the RPi is off, the H-...
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38 views

Recent raspivid segmented filenaming does nog work properly

I updated to pi3B+ and got the most recent raspivid. In my old software I use raspivid -sg 6000 -wr 40 -sn 4 -o REC_%04d.h264" to produce a file named REC_0004.h264. The new version produces a ...
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34 views

Connect to failover WiFi if other router is unavailable

I have two WiFi networks configured in /etc/wpa_supplicant/wpa_supplicant.conf as below, and I'm able to manually switch from one to the other via GUI with no problems (via RealVNC usually). However, ...
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0answers
27 views

Rpi3 WIFI AP go down after some time of innactivity?

I have setup my Rpi 3 as wifi access point and it was working for a long time. But some day, wifi stop working unexpectedly and i was no idea that what was the problem. It means wifi access point is ...
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0answers
37 views

Relay for controlling backlight of touchscreen not reacting after a while

I connected my rpi3 to a 10" touchscreen. I connected the backlight of the touchscreen to a relay which I'm controlling via the GPIO pins. This is working fine for the first couple of minutes. But ...
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432 views

Sorry, could not load the WebRTC extension for UV4L

I have a RPi 3B with a Raspberry-pi Camera Module OV5647 sensor HD video Webcam 5MP 1080p mounted and working. I am trying to get UV4L streaming working and have encountered a problem. UV4L driver ...
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325 views

How to upgrade other major OS to work on 3 B+

Scenario I am yet another victim of thinking my rpi 3 B+ was broken when it wouldn't boot up. It turns out that the 3 B+ is looking for some special boot instructions. I currently have: Ubuntu Mate ...
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115 views

Raspberry Pi 3B+ Ethenet socket Orange LED flashing

I have this weird issue with my Raspberry Pi 3B+ where during normal operation, e.g. while running sudo apt update && sudo apt upgrade the command errors out saying it couldn't connect to the ...
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16 views

Why do fbedev OGLES Draw Calls takes 30+us each?

When operating with the framebuffer OpenGL Drivers on my HTC Vive, performance is incredibly good on my Raspberry Pi 3B+ EXCEPT that every single draw call takes anywhere from 30-50us, regardless of ...
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812 views

Slow Refresh Rate on WaveShare 3.5" LCD (B) on RPi 3 B+

I've flashed StickyFingers-Kali-Pi-armhf-180607 to my Raspberry Pi 3 B+ with Waveshare 3.5" LCD (B). I update and configure the unit for my specific screen using the guide's instructions, entering the ...
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294 views

opencv cv2.imshow doesn't work

I'm working a project that getting a video from usb camera on raspi for encode qr code. So I wanna display the current frame, but i am getting this error: <cv2.imshow('Current', frame) error:/...
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31 views

A weird bug in Raspian

I just updated my Raspberry pi 3B+, after the reboot all windows get their “top” cut of like this: And everytime the cursor is outside the current window it appears as an “x”, I hope you can help me ...
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950 views

Pi 3B+ jack audio inputs

Related: Raspberry Pi 3 audio input? I need to be able to input several jack microphones (minimum 2, more could prove useful) to my raspberry, to do some audio processing (between all inputs), and ...
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0answers
427 views

Issue on Display Resolution

I am unable to set the correct screen resolution when trying to connect TV/Monitor(via HDMI) with RaspberryPi3 at runtime, the following are the steps: Disconnect TV if already connected Boot ...
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0answers
4 views

Raspberry Pi 3B+ Bluetooth undiscoverable on iPhone

I installed latest version of Raspbian Stretch with desktop (which comes with pre installed bluetooth). I turned the bluetooth on, and made it discoverable. At the same time I searched for available ...
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0answers
12 views

Pi stopped booting after one night

Last night I set up my Raspberry Pi Model 3B+ as a Samba Server with an External Hard drive. After connecting to it on one of my PCs, I went to sleep. I also had VNC Server set up on the Pi so I had ...
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6 views

RPI Motion service delay on restart

Is there any way to delay the start of the Motion service on RPI restart? I'm having an issue where v4l does not make it yet to provide /dev/video0 but Motion is already trying to open it and ...
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17 views

Waveshare 3.5 (A) display speed 41000000 not work

i had a real waveshare 3.5 lcd. and, i try to edit config.txt. i'm try to edited speed=41000000,fps=60 and speed=36000000,fps=60. refresh rate is worked so smoothly! but display's color is terrible. i ...
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0answers
22 views

Correct wpa_supplicant config for WPA2-Personal connection

I need to setup my pi 3b+ headlessly (I dont have access to a monitor or keyboard). I have already burnt raspbian lite to my sd and added the ssh and wpa_supplicant.conf files. However, the pi does ...
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0answers
15 views

What's a decent overclock for RasperryPi 3B+ with added heatsink at these temps?

So I've been bench-marking my 3B+ with sysbench and i've been thinking of adding an overclock, but i don't want to over do it, what is a decent overclock with these temps (47.2'C is average idle temp) ...
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23 views

Video on local page lags but on YouTube it plays smooth

3B Plus model and latest Raspbian version. I’m developing an ExpressJs app where I could display photos and videos as a slideshow in a web browser. Everything works fine except when it comes to ...
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31 views

Connecting wifi to Raspberry Pi 3B+

i have used wifi before and it worked but now only Ethernet works. ive tried the config file and switching wifi dongles but nothing. ive use sudo ifup wlan0 and get wlan0 not detected , but ifconfig ...
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0answers
25 views

Error while opening LXTerminal in Raspberry Pi

I have got a problem. I am giving power to RPI 3 B+ and waiting for starting OS. Then when I open LXTerminal there are symbols with error of /etc/inputrc(see screenshot in down). Please help me, and ...
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0answers
11 views

Is there anyway to use raspberry pi to control an air compressor driving a hydraulic press?

I have a 20 ton shop press that I would like to automate to have certain run settings at a certain psi for a specific amount of time. For instance if I wanted to press something at 140 psi for 3 ...
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0answers
18 views

Xorg doesn't properly work on RPI3

I'm trying to configure Xorg on my Raspberry Pi 3 (Model B). I've just installed Debian GNU/Linux (unstable/arm64) and it runs. Then, I've decided to install Xorg, LightDM, and i3 but I'm having ...
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0answers
40 views

Raspberry Pi 3.5 Inch Display Works on Pi 2 B but not 3 B+

The exact screen is this one. http://www.neosecsolutions.com//products.php?28 On a Raspberry Pi 2 B it boots to raspbian. On the 3 B+ it gives a white screen, The Raspberry Pi 2 B has a white screen ...
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0answers
72 views

Raspberry Pi 3 Model B+ — Wifi Country not set every boot?

I have a Raspberry Pi 3 Model B+. On the initial installation, I was able to select a WiFi network and connect to that in order to download and setup everything I need. After that, I had to switch ...
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0answers
48 views

AArch64, Weston, xwayland — x clients not working / Desktop freezes

I have installed AArch64 (ArchLinuxARM-rpi-3-latest.tar.gz) as described here on a new rpi 3. Additionally I installed those packages: mesa libva-mesa-driver libnotify notification-daemon adobe-...
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0answers
15 views

My videobooth powered by raspberry pi, has a buzzing noise in the video clip, because of external lightning

My videobooth consist out of: raspberry pi 3b picamera (I use picam) usb microphone (which is actually a external sound card usb with jack input to the microphone) 4 led TL lights (230V) (switched on ...
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0answers
57 views

Add Bluetooth 5 to Pi3 B+

Are there already easy to add Bluetooth 5 chips for the Pi3 B+. I couldn't find anything but maybe someone here has done it before or has a clue how to add Bluetooth 5 capabilities? I want to increase ...
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0answers
27 views

Hard-drive standby mode - drive doesn't wake up

I want to use an external hard drive and send it to standby mode. In order to do that I used hdparm. Then I used the comment hdparm -y /dev/sda1 specified for my hard drive, so it goes into standby ...
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0answers
44 views

Effects of fan vibration on Raspberry Pi. (and ideal operating temperature)

I am using a case with fan to keep my Raspberry Pi which is deployed as a storage server. It has a USB HDD (platter based HDD, not SSD) attached to it. There's also a USB drive (pen drive) to store ...
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0answers
122 views

Captive portal in standalone network

I want to know is it possible to set up apache as captive portal serving files from rp memory. So far I've managed to create standalone network following this link Setting up a Raspberry Pi as an ...
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0answers
72 views

MacOS Unable to init server error when SSH'ng to Raspberry Pi

I have a project where I have created a Docker container for OpenCV and another Docker container for my Python codebase which can do motion detection on my Raspberry Pi installed with the Pi camera ...
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0answers
12 views

How to enable audio volume on 3b+ /w vx1 usb sound card

I have an rpi 3b+ that I want to get all audio to come out of the USB sound card - a VX1, which seems to have worked on an earlier version from this When I power it up / connect it, it gets detected ...
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0answers
19 views

Output in PulseAudio only switchable when running in root account

I'm trying to have PulseAudio play sound through the HDMI port. Sadly this doesn't work, when loggen in as a normal user. The green tick is non existent in all accounts, but the root account, which ...