All Questions

1
vote
0answers
14 views

Bluetooth Blues

I've discovered again that cursing and swearing at inanimate objects doesn't actually improve things, so I'll try posting a question. A couple of months ago I attempted a fairly ambitious project (...
0
votes
1answer
3 views

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 ...
0
votes
1answer
11 views

Powering 100mA LED

I want to power an 1.5V LED fully and control it using pi. I can only use 16mA per pin and i need 100mA. Can you give me suggestions? I can turn it on with 5V and 35 ohm resistor but not control it. ...
0
votes
0answers
9 views

Creating device driver which feeds GPS Co-ordinates from phone to raspberry pi

I dont have GPS module,So i was thinking whether I can feed GPS coordinates from my android/ios phone to raspberry pi over wireless protocol like bluetooth/TCPIP. Can I create virtual device driver ...
2
votes
1answer
16 views

Is it possible to revive GPIO 18 pin? [duplicate]

I guess it (pin 18) got burned after me accidentally connecting it to the 12V of the led strip and not the data pin, while the RPI ground and 12V ground were connected too. I used pigpiod, gpiotest ...
0
votes
0answers
4 views

Updating Fedora 29 gives me this “error loading repository 'fedora' has failed”

I have Fedora 29 minimal running on a Pi 2. However whenever I run the command; sudo yum update I get the following error message; error loading repository 'fedora' has failed I am able to ping ...
0
votes
0answers
5 views

wps_supplicant@.service not present in Jessie

I've been following along with the WiFi repeater setup and I've hit a snag. I am running Jessie rather than Stretch. I don't have wps_supplicant@.service in /lib/systemd/system/, just wps_supplicant....
0
votes
1answer
14 views

VNC disabled after each reboot

I run VNC through raspi-config. Turns on. I run sudo vncserver. Works. I reboot. Everything is shut down/disabled and i have to redo it. How can i permanently enable vnc? (raspbian, over ssh) error i ...
0
votes
1answer
15 views

Camera with speed sensor on raspberry pi?

I'm new into coding but I'm making a project where a camera should take a picture if the Raspberry pi gets a certain value from a sensor. For example, if I have a speed sensor and camera connected to ...
1
vote
0answers
18 views

Error unknown machine command despite compiling without errors

I recently made a project using opencv 4 on my raspberry pi 3 b+, but then decided to port the whole project to a new raspberry pi zero, as I want to make it a permanent setup and want to keep my py 3 ...
0
votes
2answers
18 views

Can a single Ethernet interface be addressed on DIFFERENT subnets?

Can a single REAL Ethernet interface be addressed on (2) DIFFERENT subnets? But how can this be when a Pi only has a single REAL interface- and therefore only a single MAC address to map the (2) ...
0
votes
1answer
17 views

SSH over hotspot network?

I have looked through here a bit and seem to have a unique situation I'm trying to address. I have an iphone with my hotspot enabled. I connect to the hotspot with a raspberry pi zero w over wifi. I ...
0
votes
0answers
17 views

Mobile Wi-Fi Solution

I have created a Raspberry Pi 3A+ prototype system consisting of a rover with camera and touch screen remote control that communicate across a Wi-Fi network. My expectation was to have the rover ...
0
votes
0answers
6 views

dhclient doesent renew lease after wifi drop - wpa_supplicant

i have set up /etc/network/interfaces because i need some static adresses on single interface. This causes to use dhclient instead of dhcpcd wich works fine. Now i have the problem that when i boot ...
0
votes
0answers
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/...
0
votes
0answers
7 views

RPi camera OCR,and save output in variable (pyhton with tesseract)

I want to make a python code for the raspberry pi, with the tesseract OCR engine, that it keeps reading text from the camera in realtime, saves in a variable, and sends output to Arduino. Is there a ...
0
votes
0answers
8 views

How can I launch RetroPie games from the command line (for Pegasus front end)

I'm using RetroPie and it was working great until I installed Pegasus front end. Pegasus is awesome, and it mostly works right out of the box because it pulls metadata and art from EmulationStation. ...
0
votes
0answers
14 views

Waveshare ADC Board Full Scale Issues (ADS1256)

I am using the Waveshare High-Precision AD/DA Board with my Pi to read an analogue 0-5v signal. I am using a 5V reference voltage, but I can't seem to read full scale. Applying 0V reads out -344 ...
0
votes
0answers
14 views

POE power for BOTH Pi and Hard Drives?

I have a need for some network-accessable storage for backups, in a location where there is only POE power. There is no mains AC electricity available. Ideally I'd like 2TB of space so an SSD is ...
-3
votes
1answer
35 views

Can you get Ubuntu to work on the Pi 3 B+?

I have got Ubuntu on my Pi3 B+ but it does not work, I have version 16.04 and I made sure I did everything correct, I even ran thru the process 3 times, my 3B+ is new and had no problems with raspbian....
0
votes
0answers
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 ...
0
votes
0answers
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 ...
0
votes
0answers
45 views

Creating router without using ethernet

I would like to make router from my Raspberry Pi 3B+ using built-in wifi. After installing the OS, I made update, upgrade and installed packages: sudo apt update -y && sudo apt upgrade -y &...
1
vote
1answer
22 views

Translation request for News re wpasupplicant during upgrade

During a routine upgrade (sudo apt-get upgrade), the following "news" appeared in my terminal window: apt-listchanges: News --------------------- wpasupplicant (2:2.6-19) unstable; urgency=medium ...
0
votes
0answers
21 views

2 USB Sound Cards in Raspberry Pi

I have a pair of Alesis Active Monitors which have a USB input and it's a pain connecting devices to it so I felt using a Rasberry Pi with bluetooth and audio ins to allow for multiple connections ...
0
votes
0answers
6 views

Cups doesn't work on Pi3B+ with Brother DCP-7030

I'm running the latest version of CUPS pn my raspberry pi 3B+. I have my Brother DCP-7030 printer connected via usb. I configured everything according to [this][1] tutorial. I have the web interface ...
1
vote
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 ...
0
votes
0answers
8 views

Video streaming from Raspberry PI - Python vs. raspivid + netcat

Some time ago I posted the following post on Stack Overflow, but I got no reply. I can't figure out where the additional lag with the Python method comes from. The netcat method is really smooth with ...
0
votes
2answers
37 views

Errors compiling C program with time.h library

I am facing some problems in my raspberry Pi 3 B+ when I compile this simple program that uses time library: #include <stdio.h> #include <time.h> int main(int argc, char** argv) { ...
-3
votes
0answers
13 views

phython program to display the data received over raspberry pi over monitor

I'm working on project, I want to display the input data which is image, text msg, video. Input data is send using an Android app over IP address of raspberry pi3. I want a program for data receiving ...
0
votes
0answers
11 views

Undefined TERM on freshly installed Raspbian Stretch

I have a weird problem. Just finished a fresh install of 2018-11-13-raspbian-stretch.img (Raspbian Stretch with desktop) on Raspberry Pi 2 Model B V1.1 Did the pre-configuration, passed through ...
0
votes
1answer
42 views

GPIO only reaches 2,4v when high

TLDR; Under little load the GPIO 22 reaches 3,5v whereas under more load it only reaches ~2,4V, which is not enough to trigger the reset-line on an ATMEGA328P. UART GPIO Pins still reach 3,3V in both ...
-1
votes
0answers
18 views

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 ...
0
votes
1answer
23 views

How to loop mount an iso in raspberry pi?

I'm trying to do: sudo mount -o loop ubuntu-18.10-live-server-amd64.iso /mnt/ubuntu and getting: unknown filesystem type 'iso9660' Doing a: uname -a on my pi reveals: Linux pi 4.14.79+ #1159 Sun ...
0
votes
0answers
12 views

How to stream m3u8 link on raspberry pi?

I have raspberry pi 3 and tried to play m3u8 link using omxplayer directly but that didn't work. pi@raspberrypi:~ $ omxplayer 'http://somesitename/tv/m3u8.php?channel=Discovery_HD&quality=900' ...
0
votes
1answer
16 views

Connection via Ethernet to Windows

I'm having an issue with creating a direct connection with RPi 3 B+ and Windows laptop (to use as interface with RPi for first time set-up). I formatted the microSD card to FAT32 (Master Boot Record) ...
0
votes
0answers
18 views

Emulate USB devices from one Pi zero to another Pi zero

I'm looking for the best way to emulate USB devices that are plugged into a Pi zero and connected to another Pi zero through GPIO pins, so the second Pi zero will emulate the actual device that is ...
0
votes
0answers
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 ...
0
votes
0answers
23 views

Pi 3b+, integrated wifi loses connection on 5ghz network with carrier lost

I hope your all doing well. Before some weeks i did buy my first raspi, and I'm quite happy with it. As my starter Project, i wanted to create an Accespoint out of it, and after some days reading ...
0
votes
1answer
25 views

problem when running the python application in /etc/rc.local in console mode

I'm coding an application to run when starting raspberry, however when trying to run this error is returned: QXcbConnection: Could not connect to display My application is done in python with qt ...
0
votes
0answers
19 views

Use Python flask or NodeJS for controlling stepper motors via Web?

Im planing a project where I need to controll some stepper motors with my RaspberryPI. I'd like to controll those motors interactively via a web GUI. This server should run on my Py. Now I found a ...
0
votes
1answer
44 views

How to connect a SATA disk through GPIO (not USB)

I repost this here because i was told on stackoverflow that my question was off-topic. I would like to connect a lot of SATA hdd on my raspberry PI. I've read about how are sata pins made and I can ...
0
votes
0answers
10 views

installed Vokoscreen

I installed vokoscreen to record my Pi desktop and I was wondering if there is any better way to record it, I like it and all, but my screen gliches, is there anything I can do to make it work faster ...
0
votes
0answers
11 views

Is overclock a good thing to set to full, my sources say there is a risk of card damage

I love making things work on the Pi, I have a lot of things that involve overclock on full, VLCplayer, minetest, and some other apps. But i have heard there is a risk to what I am doing, can someone ...
0
votes
0answers
17 views

Motor-Potientiometer read and write, additional power source

I want to get and set values for a motor potentioneter ALPS RK16812MG from a raspberry pi. I found a similar approach here however, the answers in that forum suggest a different wiring with an ...
1
vote
2answers
66 views

5V-3.3V Sensors Confusion

Most of the sensors available in the market requires 3.3V-5V. The GPIO of the Raspberry Pi is 3.3V max only and not 5V tolerant. I have seen tutorials around the internet that they supply the sensors ...
0
votes
1answer
13 views

Dependencies problem installing mmrcn

Hello i am trying to use ML techniques to identify cars in an image using opencv. I have been following this tutorial : https://medium.com/@ageitgey/snagging-parking-spaces-with-mask-r-cnn-and-python-...
1
vote
1answer
20 views

Why doesn't dist-upgrade upgrade to stretch?

I have an old Model B+ (I found out by checking this page – my hardware revision code is 0010), which I'm trying to upgrade to the latest Raspbian. I take it from the answers to this question that it ...
0
votes
1answer
23 views

How to get Raspberry Pi 3 & Android device to communicate with each other, and authenticate?

In an Android app that we created for a project (a step-counter fitness tracker), we require user authentication to access the user's data in Firebase. Same goes for the Python program in the ...
0
votes
0answers
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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