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Questions tagged [raspbian-stretch]

Raspbian-Stretch is a GNU/Linux operating system derived from Debian 9, initially released in August 2017. Raspbian is the most widely used Pi based distribution and the one recommended by the Raspberry Pi Foundation, who distribute their own images of it in two flavours, a full version with Desktop GUI, and a "lite" version without any GUI pre-installed.

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How to bridge the local network of an access point with a remote private network by openvpn?

My access point spawns a wireless local area network. Now I want to connect it to my other private network over the internet with openvpn so it gets direct part of the remote network in a common ...
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10 views

Software control backlight of a 3.5 inch display

I'm using a 3.5 inch SPI screen on a Raspberry PI3. I would like to know how is it possible to control the backlight value with a shell command. I try to use the command echo %s > /sys/class/...
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19 views

How can I diagnose a headless Raspberry Pi Zero W that hangs?

I'm trying to run my Pi Zero W as a motion detecting camera using RPI cam web interface but it keeps hanging after a few hours at most. Before it hangs, it can record motion detect videos and upload ...
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25 views

Accidentally clicked on “Expulse SD card” on RPI3

I accidentally clicked on "Expulse SD card" on RPI3 now I don´t have any image I can access Terminal with an SSH but if I try to connect it to my TV with an HDMI or with a remote desktop I don´t get ...
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1answer
22 views

Adduser command missing

I use rkhunter on all of my RPis, since some are used as dedicated servers, to try and ensure no rootkits or other malware are installed on them. When I did the check as usual today, I got the ...
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Python Error code (TypeError: __init__() got an unexpected keyword argument 'vf')

Here is the full code can you please fix the error for me # USAGE # python detect_faces_video.py --prototxt deploy.prototxt.txt --model res10_300x300_ssd_iter_140000.caffemodel # import the ...
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9 views

hcitool does not find devices despite GUI showing multiple

I'm trying to better understand C (and bluetooth) using a Raspberry Pi 3 b+ as the testing grounds. I started by writing a C program that uses BlueZ to scan for bluetooth devices (script pretty common ...
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14 views

Raspberrypi 3b+ interface with Voice recognition module V3.1

I have write program for Voice recognition Module V3.1 and Raspberrypi 3b+ , but my problem is I am not able to write any of my voice command on voice module when I speech my command its not return ...
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1answer
30 views

How to remove `raspi-copies-and-fills` from Raspbian

I did apt update && apt upgrade as root and now my Raspbian system is corrupt and won't boot anymore. After some debugging I noticed there's the package raspi-copies-and-fills. Fortunately, ...
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1answer
51 views

Raspberry SSH works on Linux but access denied on Windows 10

I can login with ssh my_username@192.168.0.5 when I use Ubuntu 16.04. However using Windows 10, it says PuTTY: Network error: Permission denied. Windows Power Shell: > ssh my_username@192....
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Failing using startx to launch different desktops

I am trying to use startx to launch different desktops according to an argument using case...esac This is my .xinitrc mate(){ (sleep 5 && conky) & mate-session } case $1 in ...
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Passing audio from bluetooth to cloud

I want to use my RPI Zero W as a bluetooth headset (HFP) and take the audio (the voice of the caller) from a phone call and pass it to the cloud to do some TTS on it. The response from the cloud ...
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1answer
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Limit to number of videos that can be selected via buttons in kiosk?

I'll try to make this brief initially, in hopes that someone knows off the bat that there is some limit in omxplayer that I'm hitting. If not, I can post the code and more details about what I've ...
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19 views

SIP video call Performance issue

I'm facing performance issue during video call made between RaspberryPI3 and Laptop, the video image from RaspberryPI3 are not running smooth and the overall CPU usage consumes more than 80%. Here ...
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2answers
25 views

timedatectl set-timezone Access denied

I get error when trying to set time: $ sudo timedatectl set-timezone America/New_York Failed to set time zone: Access denied This is on an almost pristine stretch lite image. I noticed $ ...
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2answers
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How to run program automatically after booting Raspberry pi on stretch

I have written a program for wireless communication between raspberry pi and Arduin0 with Hc05. But how to run this program automatically after booting pi? every time I have to login pi and run the ...
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1answer
34 views

{ [Error: , Remote I/O error] errno: 121, code: '', syscall: 'writeByte' } from raspberry pi to Azure

I tried to follow the instruction below to send sensor data from my raspberry pi 2 to Azure. Connect Raspberry Pi to Azure IoT Hub (Node.js) I connected the sensors to my pi device in a different ...
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1answer
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regarding system used uart port of raspberrypi3 b+

I want to do a serial communication Raspberrypi and voice recognition module v3, and for that I have to disable the system used UART port raspberrypi3. After disabling the raspberrypi3 b+ system used ...
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1answer
34 views

Does 'xdotool' only work on OS with gui?

I have installed xdotool on my raspbian stretch with desktop and on there, everything works fine. But I also tried to install xdotool on raspbian stretch lite and on lite I always encounter the ...
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how to control 6 d0f robotic arm using raspberry pi with gpio [closed]

I have a 6 dof robotic arm and I want to control it with raspberry pi and Google aiy voice kit. I want to make a voice controlled robotic arm with 6 dof robotic arm using raspberry pi and aiy voice ...
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19 views

how to install Azure IoT Hub Device Client SDK python on Raspberry PI 3 B+

I am using Raspberry PI 3 B+ with Raspberrian stretch os. How to install Azure IoT Hub Device Client SDK python on Raspberry PI 3 B+
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1answer
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Access point as WiFi repeater with additional WiFi-dongle

There are some tutorials to make an access point a WiFi repeater using only the on-board WiFi chip of a Raspberry Pi. But I want to use an additional USB/WiFi dongle as second interface for the up-...
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20 views

Try to sending and receiving data from raspberry pi to HC05 arduino

But I am not able to connect my HC05 module with Raspberry Pi 3B and I am getting error like: connect 00:18:E4:40:00:06 Attempting to connect to 00:18:E4:40:00:06 [CHG] Device 00:18:E4:40:00:06 RSSI: ...
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2answers
97 views

Raspberry Pi to configure automatically as an Access Point OR WiFi client

There are many guides for setting up a Raspberry Pi as an Access Point, and even some which allow switching between Access Point and WiFi client. I wanted a setting which would work as a normal WiFi ...
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1answer
42 views

CPU/RAM monitoring of one process

I know close questions have been asked, but I did not find any answer to this. I would like to monitor CPU and RAM of a process I launch, which is executed through several threads. I would like the ...
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2answers
32 views

Netboot PXE and usage extremly slow

I tried to use the netboot feature of the RPi3 and booted via network. Therefore I used dnsmasq of pihole, tftpd-hpa and NFS on another Rpi3. I want to use the RPi headless. The Boot takes up to ...
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1answer
61 views

Unable to Reconnect WiFi on Pi 3 after Connection Drop

Question What is the current proper way to force reconnection to a WiFi access point? (Or even better: automatically reconnect after the connection is dropped?) The only way to reconnect that has ...
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28 views

How to connect to multiple Bluetooth speakers?

Can I connect 3 speakers to the PI and listen to them at the same time? The distance will be less then 5 meters so that should not be a problem. I'm using a PI3 with Raspbian Stretch.
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App runs above desktop

i am running a kivy app programmed in python 3.5 3 in raspberry pi 3b+. The GUI app runs above the desktop and keeps the desktop active. How the GUI window can be docked into the main window of ...
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0answers
18 views

alternatives.tar.0 file fills /var/backups daily using all available space on Debian

On Raspbian stretch, every day at 6:30 am, an alternatives.tar.0 file is created in the /var/backups folder, leaving 0% free space. So far, I have not been able to figure out what is doing this or why....
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2answers
106 views

cron not executing python3

I am running Raspbian Stretch and have a python 3 script that executes correctly when I am in the relevant directory and input it in the command line as: sudo python3 Example.py The shebang #! line ...
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1answer
39 views

How do I start and stop the on board wireless access point?

I would like to have my wireless access point available at particular periods of the day and not at others. I have a RPi3+ running default Raspbian and followed https://www.raspberrypi.org/...
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1answer
51 views

Running a persistent node js server on boot and keeping the command line open

I know there are a lot of answers to this question but none have worked for me and I've been at it for something like six hours... Most of the answers also look like they're years out of date. I am ...
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1answer
25 views

Using my Apache2 www folder on a USB drive: PERMISSION DENIED

My Raspian Apache2 does not seem to like the www folder on a RAspberry-3B USB drive, which I can easily access from my Windows network. It keeps giving me You don't have permission to access / on this ...
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1answer
21 views

Raspbian Stretch install imapclient to Python 3.5.3

Why I need it: I've run into an issue where I first wrote a python script using imapclient to check my gmail using Python 2.7. Then continuing the path to full automation I made another script which ...
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1answer
54 views

Raspberry Pi will not boot using a custom image

I am trying to make a custom Raspberry Pi image, using the following program https://github.com/RPi-Distro/pi-gen. I am using Debian 9 Lite release as a base. A little brief, this program goes ...
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2answers
45 views

Can't login into VNC viewer

I recently setup VNC Viewer both on my Pi (3b+) and my laptop (Ubuntu 16.04 LTS). Using Stretch Lite. Installed lightdm. Using RealVNC. Followed the guide on raspberrypi.org After I connect to the Pi ...
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Sharing home LTE conncetion via RPi + OpeVPN

Setup: RRi connected (bridged) to home network router (192.168.178.99) RPi LTE stick (192.168.8.100) RPi acts as OpenVPN server on 192.168.178.99 being publicly available via portforwarding and ...
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0answers
24 views

PiCamera python : buff/cache memory keeps increasing

I need to take a picture in each second in an infinite loop. I've wrote 2 different python scripts: one with camera.capture() and another with camera.capture_continuous() In both cases, I see the ...
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0answers
31 views

Self-walking robot with Raspberry Pi Cam object detection

I am now trying to make a self-walking robot with Raspberry Pi and Raspberry Pi camera. But i am now facing several difficulties and wish to gain insight from here, My final goal: An robot able to ...
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56 views

SONY TV as Display / Monitor

Background: I have successfully used pi-3b+ to display on LG LED TV, New model Sony 4K LED TV. Requesting your support: The year 2011 SONY 40NX710 model is showing blank (No desktop / text-console). ...
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1answer
36 views

raspberry pi application menu icon restore?

accidentally deleted the red rasberry app menu icon from toolbar. I purchased a new SD preloaded and it automatically updated to latest rasbian and while trying to restore default monitor settings ...
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0answers
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raspistill quality issues: single photos vs timelapse

For some reason there seems to be a huge jump in quality when using the -tl switch for a timelapse over individual pictures. raspistill -t 1 -o /mnt/usb128/photos/test%016d.jpg -ex auto -awb auto --...
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3answers
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Crontab suddenly doesn't start jobs

I'm suddenly having crontab issues, I didn't do anything other than change the script names and then change them in crontab as well so they all natch, the scripts work if I start them manually, so i'm ...
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1answer
50 views

Strange performance problems

I've been trying out a raspi 3 as a desktop recently, and have run into strange performance problems, particularly when using chrome. setup: raspberry pi 3 running raspbian stretch 2.5A power supply ...
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1answer
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Upon starting Node-RED my Pi detects all of its i2c addresses as connected

I've been trying to connect an MPU-9250 module to my raspberry pi B+ in order to output the sensor's data through a Node-RED UI, i followed this tutorial to setup the MP-9250: https://kingtidesailing....
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1answer
51 views

wine: cannot find L C:\\windows\\system32\\msl.exe

I want to run MSLPU39_Cloud_Ultrasound_Diagnostic_System_Version_1.2.exe software on raspberry pi 3 Model Vi.2. (This pi has Quad Core 1.2GHz Broadcom BCM2837 64bit CPU.) This is a windows based x64 ...
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0answers
30 views

raspistill timelapse stops producing output

So I'm trying to run a timelapse for 24-36 (or until storage space is full) but raspistill seems to stop producing output after anywhere from 50-300 stills. raspistill -t 129600000 -tl 5000 -o tlapse%...
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1answer
29 views

Prevent guest user from using bluetooth and wifi

I'm running raspbian stertch and need to create a guest user to use the raspberry pi with limited permissions. To be specific, I'd like to prevent the guest user from using Bluetooth and wifi. I ...
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1answer
39 views

Can't reclaim freed disk space

How to reclaim freed disk space after Telegraf filled all swap on Raspberry Pi Zero running Raspbian 9 Stretch? /var/swap grew to 14GB, so I disabled swap with dphys-swapfile and deleted the swap ...