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Questions tagged [pi-3b+]

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

308 questions with no upvoted or accepted answers
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17 views

Changing picade's power off functionality

I added a picadeX on top of my Rpi (3B), and it comes with a soft power off functionality. It works like a toggle switch : click once to power on click again to power off As I wanted to integrate ...
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29 views

Can't log in via any means

So I'm running Raspbian (I installed with NOOBS initially if that makes a difference) on a Raspberry pi model 3B+ and I can't log in. before anyone says it, I know this question has been posted before,...
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1answer
34 views

autonomous lawnmower with gps, radar and remote control

I am trying to build an autonomous lawnmower using raspberry pi 3B+. I want to include auto-steering or remote control and also I want to include the radar as well to avoid any obstacles and also want ...
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2answers
36 views

Second wifi (dongle) only as local network

I'm running Raspberry Pi (3B+) 9 (stretch) Wlan0 connected to WAN with network info stored in wpa_supplicant.conf. I recently purchased an Wifi dongle in order to create a wireless access point from ...
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24 views

Remote access lags on 3B+ when firewall enabled

I'm having some weird problems with SSH and VNC on a 3B+. I've got basic firewall rules on the Pi to allow that traffic through, but I get major lag with them. I'm talking 2 minute delays. If I ...
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84 views

Raspberry pi running hassio wont connect to internet/network all of a sudden?

I have a raspberry pi 3b+ which i use at home to run all my home automations stuff - one day when i came back from work nothing worked? all my dashboards, my lights, all automations nothing worked.. ...
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1answer
157 views

How do I connect my Raspberry Pi 3 B+ to a hidden network? Nothing I've read works

I just installed Raspbian on my SD card, but I cannot connect to my network initially because it is hidden. I've tried following the guide https://raspi.tv/2017/how-to-auto-connect-your-raspberry-pi-...
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1answer
49 views

How to use at the same time 2 hardware pwm in wiringpi

I need help to configure 2 hardware PWM channels. I am developing device, and sometimes I will need active 2 PWM channels with different frequencies (frequencies is low: 410 and 580 Hz).I'm writing ...
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23 views

PiCAN2 network is down

I am using RPi 3 model B+. I am trying to set up can communication using Pi CAN2 (From SKpang) with baud rate 500000. But I am getting "write: Network is down" whenever I am sending "./cansend can0 ...
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1answer
60 views

SSH connection hangs in Mac OS Terminal - No prompt for password

I've been SSH'ing into my Raspi 3 B+ for some time now from my Mac OS with no issues. I recently set a static IP address for my Pi on a LAN network connected via ethernet cable. I edited sudo nano /...
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1answer
26 views

Raspberry 3B+ Can it be connected the same time for WiFi and for Ad-Hoc wireless network

Sorry guys, I'm not a Linux guru at all. So the problem: I have a general wifi in my office and there is Internet shared via this network I have a raspberry 3b+ device I could connect rpi to this ...
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2answers
66 views

Test raspberry power supply

I have a raspberry pi 3 B+ and an external hdd like this one Connecting it directly to the pi makes the pi shutdown and restart I’ve tried to use an external usb hub with power but it still keeps ...
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1answer
147 views

Unable to install Mongo-DB on Raspberry Pi with Ubuntu Core 18.04

I am trying to install mongoDB on my Raspberry Pi 3b+, which has an ARM 4-Core 64 bit processor. I was trying to install MongoDB on my Pi just as mentioned in their documentation but unfortunately I ...
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55 views

reading EMG on Rpi3 using Teensy 3.2 on usb serial

We are using MyoWare EMG sensor and reading the RAW EMG pin as well as filtered SIG pin on the board. What it basically does is sends an analog value as a fraction of the input Voltage, which in this ...
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1answer
53 views

Can Pi 3b+ be killed by wire under ethernet port

Can raspberry pi be killed by cable under ethernet port? I had moved pi on desk and placed it over a cable in area shown on picture (cable has only 5mm exposed wire), after that pi freezed and din´t ...
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8 views

Can I save and open multiple videos with OpenCV or any other module/package/method

So, I have been working on a project which requires me to open an animation/video if the user gives an input of a recognized string mentioned in my code. Basically if the word entered by the user is ...
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283 views

Alsa Lib PyAudio error on Raspberry Pi 3b+

I was looking at an old question that gave advice for fixing these errors: ALSA lib pcm_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown ...
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25 views

Raspberry pi 3b + not booting up after connecting with Raspberry pi Camera

I am using Raspberry Pi 3 b+ for 3 months. I connected the pi using laptop Ethernet SSH connection. Yesterday i connected raspberry pi camera to the raspberry pi and enabled the interface setting ...
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17 views

Has anyone used spidev library with python 3?

I am currently trying to interface a RPI 3B+ with a flash memory chip using SPI communication. do anyone have a good resource for using SPI communication with memory? What language should I use. I ...
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28 views

RPi_Cam_Web_Interface doesn't works and shows wrong HTML site, how to fix?

I wanted to stream from my RPi to a website that I can access over the IP address. The best solution seems to be RPi_Cam_Web_Interface. I followed the instructions on the elinux.org that seems to be ...
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18 views

VLC with the 10.1 inch Seeed display will cut off videos in both windows and fullscreen mode

I'm currently running VLC on the latest version of raspbian, on a Raspberry Pi 3 model B+. I have a Seeed 10.1 inch IPS display connected to it via HDMI. To get the Seeed working correctly, I ...
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147 views

Sudden influx of “frame reassembly failed” messages after Raspbian update

Problem Looking in /var/log/syslog, I see a lot of messages like this: Bluetooth: hci0: Frame reassembly failed (-84) Here's a recent segment from the logs: Jul 9 02:23:34 apple-pi kernel: [ 3268....
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161 views

Error installing lirc on raspberry pi 3

I would like to install lirc on my raspberry pi 3B+. Unfortunately there is an error message when installing with apt-get. I just reinstalled raspbian using Noobs to avoid any problems due to changed ...
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128 views

Integrated Bluetooth on my RPi 3 is not working!

So, basically I am connecting a Bluetooth earpiece to my RPi 3.B The problem started when I typed the following in the terminal sudo bluetoothctl the following output came ""Waiting to connect to ...
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13 views

How to get my font to work

I just downloaded a font and it's a .ttf file but it isn't working, I was hoping someone could help me figure out what's wrong. Thank you!
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38 views

Bluetooth connection between Raspberry pi and BT speaker falls

I have Raspberry pi 3B+ and bluetooth speaker Beats Pill+. Using alsa I am transferring audio from rpi to speaker. It works well but after few minutes bluetooth connection falls down. Using dmesg logs ...
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29 views

ttyusb don't appear in raspberry

I work with a LTE modem. Normally when I plug it, ttyUSB0/ttyUSB1/ttyUSB2/ttyUSB3 appear. Suddenly it stops working and I don't know what happened. Why does it happen? Thank you in advance Update: ...
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33 views

The sound/speaker of my pi-top doesn't work

Can someone help me find out how to fix this. I have tried turning on 12S sound and rebooting. I have tried using the hdmi speaker that you put inside but that doesn't work either. Can someone help me ...
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19 views

Waveshare GSM HAT and RPi camera

Does anyone know, if the waveshare gsm hat affects the camera unit on the raspberry pi? Because if I plug the hat on the RPi, then I can't use the camera.
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52 views

Teamviewer glitch with moving windows

I just installed TeamViewer on raspberry pi B 3+. I use the latest Version of TeamViewer on Windows(client) and on my pi(host). Now this happens when I move a window. And this stays till I click on ...
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1answer
176 views

How to set up wifi with ubuntu 18.04.2?

I'm trying to use ubuntu OS on my raspberry pi 3 B+. I have formatted my microSD card to FAT32 and copied the ubuntu-18.04.2-preinstalled-server-arm64+raspi3.img. I am able to have the OS working. ...
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68 views

RPI 3B+, Wifi super slow (10x slower than onboard) when using USB Wifi despite huge antenna

TL;DR, usb-wifi works, but it's extremely (!) slow compared to onboard wifi, even though the dongle has a big antenna and a a better signal quality. I looked far and wide and did all I could find, but ...
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24 views

Adding Subtitle font in OSMC

Hi I have OSMC installed on berryboot. And I want to Add my own Subtitle fonts (.ttf). I tried to locate Font file from OSMC File Manager. But I only found a file named "addons" this was the path: ...
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71 views

RaspberryPi 3 B+: Error in running two webcams simultaneously

I purchased two webcams (Logitech C310 HD Webcam) to use with RaspberryPi (RPi 3 B+ model). When I run individual cameras, they are running fine but when I tried to run both cameras at the same time ...
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1answer
41 views

Pi 3 B+ sudden audio failure

A few months ago I bought a RasPi 3 B+ to act as an overglorified doorbell using reed switches to tell the Pi to play a custom MP3 with the "Playsound" Module into the Company's PA system. It worked ...
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336 views

Raspberry Pi 3 B+: Many video devices are showing

I attached two webcams to RaspberryPi 3B+ using USB power hub. But when I wrote ls -la /dev/video* in Terminal, output shows many video devices as shown below: crw-rw----+ 1 root video 81, 0 Jun 7 ...
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30 views

Connected to the internet but unable to ping

I have a Raspberry Pi 3b+ with a Huawei E3372 LTE USB Stick. I use a mobile simcard in this USB stick to provide it with a internet connection. The problem now is that I can't even ping the IP ...
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1answer
75 views

Pi 3 B+, 7" official touch screen and a Sense Hat query

New here, but wanted to ask about the above. My Pi 3 B+ is connected to an official &" Touchscreen display, which uses a double adaptor to provide power to the Pi and scren. This work fine. ...
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15 views

Join raspbian in a samba domain

I'm trying for an rpi in a samba domain. I researched a lot but nothing works ... I would ask for a tutorial from you guys or even the link to some that worked. I'll use the same raspbian. I'm ...
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93 views

Can't send UDP packets

I am trying to send a 4-digit number, that is a result of two HC-SR04 sensors'measured distance, through UDP and according to almost every command and wireshark on my computer, the Raspberry isn't ...
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0answers
16 views

Confused about btpan python script

This has been done in Raspberry pi 3b in Raspbian Stretch. The goal was to setup a PAN between two raspberry pi. I have followed this tutorial for the command bt-pan server pan0. However I had a few ...
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2answers
92 views

Making the VCNL4040 proximity sensor work on Python

I purchased the SparkX module with the VCNL4040 proximity sensor you can see here: to use this sensor via Python, but on the repo for the Adafruit library it seems like the library is not available ...
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0answers
31 views

how to connect my raspberry pi to pc which has no hdmi port but a 5 usb port

I am not to find out how to connect rasberry pi to my pc which has no HDMI port Any suggestions please . Thanks
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1answer
49 views

ReSpeaker 2mic drivers can't be installed on Pi 3b

I’m trying to set up a ReSpeaker 2mic Pi HAT. Emphasis on trying. According to the instructions, i’m supposed to do this: sudo apt-get update sudo apt-get upgrade git clone https://github.com/...
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1answer
71 views

Using cgroup module in iptables cause “no chain by that name” error message

Trying to use cgroup module in iptables rule cause "No chain/target/match by that name" message. I'm using: Linux raspberrypi 4.19.42-v7+ #1219 SMP Tue May 14 21:20:58 BST 2019 armv7l GNU/Linux ...
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0answers
29 views

dgps commands return such as: “bash: cgps: command not found”, apparently because they are not on $PATH

Installed dgps on RPi 3 B, connected Sparkfun f9T RTK GPS board, and received NMEA stream via SSH serial port. So the setup works. However all the dgps commands return command not found. Looking at ...
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0answers
26 views

Raspberry Pi 3B+ RS Components

Went crazy trying to get my 3B+ setup with the latest version of Raspbian from the website. No matter what I did I could not get the system to boot, and have only a solid red light and a flashing ...
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0answers
59 views

How to solve Raspberrypi 3 b+ stretch os Bluetooth host down error

how to solve this error : I am trying to builed a communication between raspberry pi and Hc05 Bluetooth module. But many cases I am getting host down error and not able to send data properly. below ...
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0answers
42 views

Get input from bluetooth with Node js

I want to use a raspberry pi 3B+ with node js to create a simple number counter that will be incremented by pressing a bluetooth button. I need a suggestion on the button to buy, and if it is possible ...
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1answer
272 views

Xbee-API python

I'm trying to use my Raspberry Pi B+ as a gateway so others sensors, also with xbee, can send data and get a few kind of commands by it. The problem is that i can only read the data with the simplest ...