All Questions

0
votes
1answer
38 views

Multithreading Python Raspberry Pi 3 B+

My Raspberry Pi 3 b+ is reading by Modbus the values of an irradiation sensor, processing all the data, showing it in a plot and showing some warnings (if the irradiation ramp is higher than 5%). I ...
0
votes
1answer
38 views

Effective way of developing on a PC and deploying the program onto a headless Raspberry Pi

The way I mostly go about developing for a Raspberry Pi is by writing the code on my main machine in an sshfs directory that corresponds to /home/user on the Pi and then testing it by sshing into the ...
0
votes
0answers
23 views

Corruption of external USB pen

I'm running Raspbian Lite on an RPi3B+. It's powered with a bench power supply capable of sourcing over 3A. I never see an "under-voltage" warning. My application requires an USB pen drive always ...
1
vote
1answer
30 views

Installing XFCE4 on raspberry Pi

I want to try out XFCE4 on the raspberry pi. This is mainly because of two reasons: ► I just like XFCE ► I want a bit more flexibility when it comes to GUI scaling - I have a 240x320 LCD and need to ...
0
votes
1answer
15 views

pxe boot works but USB ports don't

I'm running a PXE server that provide the boot files perfectly. The raspbian jessie start well but the mouse and keyboard doesn't work. to create the respo, i've done a rsync on a working image ...
0
votes
1answer
29 views

Why is WiringiPi unable to find hardware revision?

I installed Ubuntu 18.04 on a Raspberry Pi 3 B+ and WiringPi following the instructions presented here. The problem is that when calling the GPIO utility, I get the following error: It seems that the ...
0
votes
1answer
15 views

Unable to get to recovery mode, sd card write protected, vfs error unable to mount root fs on unknown- block(179,2)

So I've followed a whole bunch of issues here for a good few hours and I wouldn't ask here if I wasn't completely out of ideas. So today I came home to find my rpi3 unresponsive. It's running Stretch,...
2
votes
1answer
58 views

Recognizing a counterfeit Pi

I'm considering purchasing a Pi 3 at a local store rather than importing it from Adafruit. However, a lot of local retailers are, how can I say, significantly questionable. I've heard that are some ...
0
votes
0answers
23 views

USB accessing using raspberry pi without any inbuilt ports [on hold]

Can we access USB flash drive in Raspberry Pi without connecting it to inbuilt ports? Can we access it through serial pins in Raspberry Pi? Is there any possibilities to use Raspberry Pi as an SD Card ...
1
vote
1answer
26 views

Don't start Pi on power connection

I've currently got my raspberry pi setup with a power switch that wakes it up from power off (using GPIO3) and shuts it down safely using a simple python script. Pretty basic stuff. The problem ...
0
votes
2answers
35 views

Restart Pi after ping failure?

I have been creating a prototype using Pi Zeros, they work great at my house but are failing often at customer's site (other side of country). I do not know if the Pi kernel is crashing or if it's ...
0
votes
0answers
20 views

SD Card Copy failed

I used SD Card Copy utility on Raspbian Stretch, the copied card will not boot. Error indicates end Kernel panic - not syncing: Attempted to kill init! Tried multiple SD cards. What do I need to ...
0
votes
0answers
22 views

How to recover from a kernel panic like this?

Getting stuck while boot process, I don't remember installing anything on Kali linux raspberry pi
0
votes
0answers
10 views

Video looper not working

I'm currently on site installing an art installation and am having trouble with my video looper failing. I used the image from Tim Schwartz and it appeared to be fine at my studio, but now it is ...
0
votes
1answer
18 views

I2C Level Shifter 3,3V Raspi 5V Arduino Mega

I am connecting Raspi (Master) via I2C with Arduino Mega (Slave). Do I need a level shifter for this or is it non compulsory? As of now my code runs for some time before i get a Remote I/O Error ...
1
vote
0answers
19 views

Troubleshooting PiVPN connectivity outside of LAN

I've set up pihole w/ cloudflared + pivpn on a raspberry pi 2b+ Everything seems to be working properly when connected to my internal WIFI (cable modem / router combo) on an Android client using the ...
0
votes
0answers
27 views

Omxplayer doesn't play videos when OpenGL enabled

Today I setup my new RPI3 B+ with raspbian stretch as a desktop (OpenGL enabled 128 mem split). I use RPIs for some time as servers but not as desktop. I tried to play video (with avc codec) with ...
-1
votes
1answer
29 views

dealing with the landline signal

I have a problem, I need to solve i want to connect the landline telephone to the raspberry pi and make the raspberry pi act as a telephone line (receive and makes the call) (and as it possible to ...
0
votes
0answers
6 views

Cant configure controller after selecting it

I’m trying to boot my retropie for the first time. It says “Hold a button on your device to configure it.” I hold a button on my keyboard and the bottom says keyboard but it never takes me to the ...
1
vote
1answer
30 views

Access wpa_supplicant inside docker

How can I access wpa_cli inside a docker? I want to connect to wifi from inside a docker in Pi 3. For that I am using wpa_cli. But when I run wpa_cli inside the docker I get following error: Could ...
0
votes
1answer
32 views

SSH Error: Connection timed out : RPi

I am new Raspberry pi user, recently while exploring , I did a remote shutdown of my Rpi with sudo halt command, since then I am not able to connect the Rpi remotely from my windows machine using ...
0
votes
0answers
45 views

Fragile code on rasp pi running IOT

I'm using a Pi 3 with Android Things to operate some relays that control valves on an irrigation system. The system uses the internet to get a weather forecast to work how much water to use, and uses ...
0
votes
1answer
31 views

3.5 inch HDD case/rack with seperate USB connection?

I want to build a NAS with RAID 1 using two 3.5 inch HDDs. I want to connect the HDDs via USB. Thus I'd need two cases for the HDDs with two seperate power supplies. Cases/Racks with two HDD slots ...
0
votes
0answers
11 views

How to configure keysettings for each game individually for picade?

I have the picade from pimoroni and use it for example with the C64 emulator. Within the picade there is the special Picade PCB board which does the keymapping that should be reprogrammable. My ...
0
votes
1answer
13 views

How to use usb to ttl in raspberry pi zero [on hold]

Working on a project in which i want to read data coming from a plc. I am using Raspberry pi zero as my microprocessor. I want to connect USB to TTL module to Raspberry pi zero. Can anyone help me. ...
0
votes
2answers
28 views

How to get the i2c ground signal to pass into the rasberry pi

I want to build a circuit, that is a Raspberry Pi Zero W, powering 8 Adafruit Alphanumeric displays (or even more). The max, theoretical current draw from an Adafruit Alphanumeric is 280mA. ...
0
votes
0answers
5 views

how would one “import” wifi settings from kubuntu (retropie)

to put it simply, I'm having trouble setting up my wifi, as i dont have a keyboard. Setting up the WiFi via putting wpa_supplicant.conf in the boot directory isn't working, for unknown reasons. how ...
1
vote
0answers
24 views

MotionEye OS: How to run additional services?

is it possible to run additional services with MotionEye OS ? Trying to make a baby monitor with sound monitoring and triggering, OPenVPN, DDNS server, Blynk server, DHT22 sensor,... I already done it ...
0
votes
0answers
12 views

On the Raspberry Pi 3B+ can the POE pins be used for 12v-24v DC power input

I have an application where I need to power a Raspberry Pi 3B+ in a compact case form a 12v power supply. I also have a 3A 5v power supply available in the case. The GPIO header is covered up with a ...
0
votes
0answers
18 views

Docker container, “* failed to open vchiq instance”

My Raspberry Pi camera is running on my RP3 and works fine. I am trying to run it inside a docker container, but I keep running into the * failed to open vchiq instance error. This is my Dockerfile ...
1
vote
2answers
37 views

Is it possible to set a static IP for each WiFi connection?

Say wifi1 is on 192.168.1.1 and wifi2 is on 10.11.11.1, I think I need a separate static IP for each network e.g. 192.168.1.233 won’t work on wifi2. Is there a way the raspberry pi can automatically ...
0
votes
1answer
26 views

DS18B20 device not showing

Things I've tried: Replacing the DS18B20 twice (First one was a different brand than the other 2) Using: modprobe -r -a w1 w1-therm modprobe w1 pullup=1 modprobe w1-therm strong_pullup=1 Checking ...
0
votes
1answer
20 views

SenseHat joystick loop consumes 100% cpu load

After messing around with the SenseHAT for the Raspberry Pi (a Model 3B in my case) and testing the LEDs and sensors, I wanted to try out the included joystick as well. Naively going after the "...
0
votes
0answers
13 views

Hostapd interworking http redirection not working on RPI access point

I am trying to redirect a client on node web server once connected to the RPI accesspoint. I am using hostapd as the access point on my RPI stretch. My goal is for a client's browser to open to my ...
0
votes
0answers
35 views

Updated apt-transport-https, now `sudo apt-get update` doesn't return any information

I attempted to run sudo apt-get update, but got the error E: The method driver /usr/lib/apt/methods/http could not be found. Following to this answer, I checked /etc/apt/sources.list.d/ and found no ...
1
vote
2answers
46 views

Physically Identify a faulty USB drive on the Pi (3B+)

I have four identical USB flash drives connected to a Raspberry Pi, one of which is (apparently) failing. I'm trying to find out which one.. It (the device is at /dev/sda) won't mount, with the ...
0
votes
0answers
21 views

Resilio Sync vanishes without notice

I have a raspberry pi 3 here with the latest (for today ;-) raspbian on it. Also the latest version of resilio sync 2.6.3. I have installed it so that it will automatically start at boot etc. When ...
1
vote
1answer
41 views

Runtime Warning: This channel is already in use

I am writing a code for Ultrasonic distance sensor. I have wired all the things perfectly and written the code for it but somehow it gives a runtime error of the channel already being in use. Below is ...
1
vote
1answer
27 views

Libboost package installion error on Raspberry pi 3b+

Command: sudo apt-get install libboost1.50-all-dev Result: Error: Could not find any package by globe and regex libboost1.50-all-dev Error: Unable to locate package libboost1.50-all-dev
0
votes
1answer
67 views

I2C Programm stops running after a few seconds / Remote I/O Error nr 121

i have an Arduino Mega hooked as slave to the raspi via i2c. My python scripts looks like this import smbus import time bus = smbus.SMBus(1) SLAVE_ADDRESS = 0x08 def requestreading(): block = ...
1
vote
1answer
36 views

OpenGL desktop driver

I have RPi3 with 7" touchscreen display connected, Raspbian Stretch installed. I would like to use OpenGL desktop driver. I run "raspi-config" > Advanced Options > GL Driver and select the driver. ...
0
votes
1answer
21 views

Use pi as PXE server to boot driveless x86 machine [on hold]

So I have an x64 laptop with no working USB ports, no optical drive and no HDD or SSD interface. I wish to boot it from my raspberry pi via PXE using ipv4. All I have is one raspberry pi 3B, the ...
-1
votes
0answers
23 views

SPI communication in Raspberry pi [on hold]

I need to send and receive data from a micro controller from raspberry pi3B+ using SPI protocol. Can any one please provide a python code for performing this operation. My need is to send particular ...
0
votes
0answers
24 views

Arm relay for 20 sec and play a video

i am trying to put together some code i have found. i am noob with python. So i want to press a button and 1)arm relay for 20 sec 2)play a video at same time, and to stop both after 20 sec. in those ...
2
votes
0answers
37 views

How can I install the latest kernel from kernel.org to Arch Linux ARM for Raspberry Pi 3 model B?

I am using Arch Linux on Raspberry Pi 3 model B. I want to install a newer kernel (currently I have 4.14.94-1-ARCH kernel installed) I have downloaded and compiled the mainline kernel 5.0-rc5, which ...
0
votes
1answer
28 views

Client connects to node web server once connected to Raspberry Pi Access Point

I would like to connect a client to my Node.js web server via my rpi access point. I have successfully setup my rpi3 stretch as an access point. Now I am trying to have the client redirected to the ...
0
votes
0answers
12 views

What is the operating humidity of the Raspberry Camera Module V2

I'm developing a project involving a Raspberry Cam that is likely to take pictures in a relatively high relative humidity context. However, I can control the relative humidity (the setting is in a ...
0
votes
2answers
27 views

Raspberry does not register to windows DNS server

It gets its local dynamic IP correctly assigned by dhcp from the windows server 2008r2. Also, the dns server is assigned correctly (can ping anything inside and outside my local network). But i ...
-2
votes
0answers
21 views

Why Metasploit Framework not running on Raspbian?

when i try to create a package for android backdoor (android/meterpreter/reverse_tcp) the build gone ok but when I transfer the file on my mobile (no root, no anti-virus) and open a session while ...
-1
votes
3answers
40 views

Runing python script after startup

R Pi 3 B+, Raspbian I would like to run a Python script after the Pi has booted up. There loads of posts about this like here & here & here. They either dont work or I just plain dont ...

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