All Questions

Filter by
Sorted by
Tagged with
0
votes
1answer
29 views

Raspberry Pi board is not detecting LAN connection

I'm working on Raspberry Pi board with Ubuntu OS but it's not detecting the LAN connection and I am not getting an IP address when I type ifconfig. I've added below code to /etc/netplan/01-config....
0
votes
0answers
14 views

ImportError:python2.7/dist-packages/RPIO-2.0: undefined symbol: makedev

I have a problem with RPIO. I am running a face recognition using OpenCV python on Raspberry Pi 3B+. pi@raspberrypi:~/facerec-pi/code $ sudo python capture-positives.py Tradeback (most recent ...
0
votes
0answers
10 views

Can't get OpenCV up'n'running in Raspberry Pi, what should I do? (details in the description)

I followed the whole tutorial (https://www.deciphertechnic.com/install-opencv-python-on-raspberry-pi/) line by line, but at the end when I imported the OpenCV library in Python CLI, it gave this error:...
0
votes
1answer
150 views

How to run emulationstation and Node.js at the same time?

I started my first foray into raspberrypi this past week. I have a few goals. The mail goal is to install Node.js and homebridge so I can automate a bunch of RF outlets and turn things on/off using ...
0
votes
0answers
11 views

12v DC proximity detector for use on truck (2-3 feet range)

Well after the 3rd time getting hit at work, this last time was major damage... of course no one said anything. I suspect that the issue is parking. The parking lot is a crappy design. Anyways, I ...
0
votes
1answer
17 views

Display a video at boot

we want to show a video in the entrance hall with the activities of our company. Now in crontab withcrontab -e i have this line to open the movie file that we want to show. @reboot vlc ~/Desktop/...
1
vote
1answer
3k views

How can I connect the H-bridge L9110 with the Raspberry Pi?

How can I connect the H-bridge L9110 with the Raspberry Pi model B's 26 pin GPIO header?
0
votes
1answer
12 views

How to send email from Pi using python without smtplib?

I am new in Raspberry Pi and I am trying to send mails without using SMTP. I have used SMTP before and it works perfectly fine. I just want to know are there any ways besides SMTP?
0
votes
0answers
11 views

execute my program when my Raspberry Pi boots up with time sleep 10

I am trying to execute my program when my Raspberry Pi boots up with time sleep 10. it workt only with time sleep: "time sleep 10 && ./DotNetConsoleApps/Tinkerforge/helloweatherstation" but ...
3
votes
5answers
325 views

Raspberry Pi run commands on boot

I thought that running commands on raspberry pi on boot was the easiest thing in my project. But it seems that it is complex enough not to work. I've searched a lot on the internet on a simple ...
2
votes
2answers
317 views

Signing in to VNC Server - no “Licensing” option

NOTE: Local connection working fine, I am trying to establish a cloud connection. I've been following the below guides to setup a cloud connection for VNC: raspberryPi documents realvnc documents ...
0
votes
1answer
45 views

RPI 4 — need libcrypto.so.1.0.0 to compile and run

I am trying to compile some c++ source code I obtained from a client. I managed to include all the dynamic libraries and running g++ <args> -o bin/thin <path to main.cpp> yields the ...
1
vote
2answers
102 views

How do I trigger a task to run when the system starts to reboot?

My Pi is rebooting for no obvious reason. Each time it reboots, syslog has a line that says the system is rebooting, so something must be causing it. I wrote a script to log which processes are ...
0
votes
2answers
17 views

How to implement remote control GPIO Raspberry Pi?

Good afternoon. I decided to build a small machine based on Raspberry, running through wifi. Wrote a simple web muzzle, which requests turn on and off the engines. Not sure if this is the best option, ...
0
votes
0answers
9 views

Raspberry PI4 slow ethernet

I have some issue with my LAN network with Rasberry PI 4. My network in PI has configuration: eth0: negotiated 100baseTx-FD flow-control, link ok when I run iper3 on PI: iperf3 -s a then on PC as ...
0
votes
0answers
9 views

How to connect Pi 4 to WiFi AP that requires web page logon

SCENARIO I have my headless RPi 4 running Raspbian Buster Lite setup as a NAT router, using the internal antenna wlan0 to connect to the WAN, and an external USB antenna wlan1 with its own SSID. I am ...
1
vote
1answer
674 views

Why is PIR motion Sensor always on?

I'm trying to make an alarm system but the motion sensor is always on as soon as the script is run. I've posted a question about a different problem i was having with this project so it'll confusing ...
0
votes
2answers
240 views

Raspbian automatic login (except when it shouldn't)

tl;dr Can I override the auto-login feature sometimes, to log in as root? My Pi is running Raspbian Jessie and acting as a kiosk in a public location. For this reason I have renamed the pi user and ...
0
votes
0answers
12 views

is it possible to set up multiple ssids using rpi 3?

I have been trying to setup multiple ssid configuration in my rpi 3B so that my rpi can broadcast multiple ssid through the adapter present in the stock hardware itself. Does BCM43143 support it?
0
votes
3answers
4k views

Strange wifi/ethernet behaviour when plugging in/out ethernet cable

i came accross a problem i was yet unable to solve with my raspberry pi. what i want is the following: startup wifi on boot with no ethernet connected when plugging in ethernet cable switch to ...
2
votes
3answers
7k views

No audio output via USB sound card

I bought an external USB sound card for my Raspberry Pi because the sound quality of the built-in 3.5mm audio jack is not that good and I experienced a lot of noise. The retailer of the sound card is ...
22
votes
6answers
114k views

Get CPU and GPU usage on Raspberry Pi

I am trying to figure out a good split for the CPU/GPU. Is there a way to monitor the CPU and GPU usage to see where I should make the split?
2
votes
2answers
245 views
+50

Setting up Bridged VPN using: RPi 3G Hotspot router + openvpn client to connect to home RPi OpenVPN server

I have a Raspberry Pi 3B+ which is working as a hotspot using a Hologram Nova usb ppp0 device where it receives Internet from and routes the internet through WiFi and Ethernet. This Hologram usb ppp0 ...
1
vote
1answer
452 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....
0
votes
0answers
20 views

PCF8591 with Analog Joystick I/O error when reading input

I have been trying to create a retropie unit, and I'm in the midst of writing a script to inject uinput events for the analog axis values. This is the code I've written so far, but the issue is that I ...
0
votes
2answers
38 views

Raspberry Pi 3 B+ won't boot up after 1 week of use

So I just got a new raspberry pi 3 b+ earlier this week by RS Components and I got it working on the first day. A couple days I shut it down and later when I tried to turn it back on, it didn't all it ...
0
votes
0answers
11 views

Can't Access Octoprint web server

I have 2 octoprint instances running on my raspberry pi. One octoprint instance is running on port 5000, and the other octoprint instance is running on port 5005. On the raspberry pi, I can connect to ...
1
vote
1answer
25 views

How to make/develop android apps and use them with RPi4?

I am using Raspberry Pi 4 for a while with the latest buster release. I searched for a lot of questions and find that android development is not possible with raspberry pi. But I wonder, that both are ...
0
votes
1answer
155 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....
0
votes
0answers
9 views

Bluetooth hci0 device suddenly missing on 4B+

After a recent reboot of my 4B+ I noticed that my bluetooth connections had stopped working. I noticed that bluetoothctl reported no device, and further that sudo hciconfig hci0 up indicates Can't get ...
1
vote
1answer
14 views

I2S 3W Class D Amplifier and 2.2“ SPI-Display (ILI9341) - GPIO 18 Problem

I want to connect the Adafruit I2S 3W Class D Amplifier Breakout Board and an 2.2" TFT Display (ILI9341) to a Raspberry Pi Zero. However, it seems that by default both components use the GPIO 18 (the ...
0
votes
0answers
6 views

Pi Zero (with pihole installed) refusing to connect to npm registry due to cert altname

I am trying to run npm install on a react project on my pi-zero. Since I have installed pihole, I understand my DNS settings may be pretty strange. I have tried running the install with pihole service ...
0
votes
0answers
6 views

Low Framerate in video recording using picamera

I am trying to record HD video using Picamera and writing it using OpenCV. But I am unable to get the desired frame rate (10 fps). I recorded the video of 1 minute but the video that was saved was ...
1
vote
1answer
9 views

Raspberri Pi (Raspian) running Apache 2, PhP(7) HTML CSS not running PHP

I am getting very frustrated with trying to track down the source of my problems with the code below. I believe it is something to do with php files not being run. (Note that all files are in the same ...
0
votes
1answer
26 views

Raspberry Pi getting burningly hot and not displaying

I tried turning on my raspberry pi 3 b+ and it wouldn't show anything to my TV, the entire Pi ( mainly around the SD card ) was so hot I could barely touch it. Bare in mind the pi was only on for ...
0
votes
0answers
30 views

Testbench for Raspberry Pi

I've owned Pi's since the first generation and have had various test rigs made from what I had to hand including stepping the voltage down from 12v and various bits of lego holding the components in ...
2
votes
1answer
23 views

Autologin root user without login and password window

I've running last version Raspbian. Edit a file /etc/systemd/system/autologin@.service and changed the one occurence of 'pi' in that file to 'root'. Edit a file /etc/lightdm/lightdm.conf and changed ...
4
votes
3answers
3k views

Raspberry Pi camera randomly freezes / crashes SoC

I use my Raspbery PI model B for capturing images for a timelapse. I capture an image every 30 seconds (roughly) using the build in raspistill command within a simple bash script seen below: #!/bin/...
0
votes
0answers
16 views

How to prevent programs like Jenkins from stopping/sleeping/waiting

I know this is probably a silly question, but I'm trying to get Jenkins running on my pi for a project. I've installed jenkins, changed the port to 9080 and port forwarded so that I can view it ...
1
vote
0answers
9 views

Accessing PI camera from Android using Firebase

i am trying to send pi camera footage to firebase and access it from my android app, can this be done using realtime firebase database ?
0
votes
1answer
63 views

Is there an affordable and flexible API dash button for Raspberry Pi?

I was wondering if there was a generic dash button for Raspberry Pi. I want to program button press to do something (programming language doesn't matter for me). It would mostly communicate to my ...
1
vote
1answer
947 views

I am wondering if its possible to make a two way radio with Raspberry Pi [closed]

Is it possible to create a two way radio that transmits and receives with a mic and speaker and one button to send with a Raspberry Pi? Like a intercom box that works over two way radio frequency so I ...
1
vote
0answers
1k views

How can I connect a PSP display to a Raspberry Pi? [closed]

So I recently took apart my old PSP 2000. I decided to keep my display from it to use for a Raspberry Pi project. I tried google but I couldn't really find anything. Does anybody know how to connect ...
1
vote
0answers
47 views

Network boot multiple Raspberry Pis

I am looking into SD cardless network boot options for a bunch of RPis. I would like them to all boot from one server, which should provide either of two images to the raspberry, as well as an ...
2
votes
1answer
31 views

Sending a binary data stream to a GPIO at a certain frequency

I would like to send a random binary data sequence to a rpi GPIO at a particular frequency and then read the data stream off a scope. Is there a way of implementing this through python?
2
votes
2answers
56 views

Reading R232 (Serial) from USB on Pi Zero

I know there are similar posts on this topic, but I've scoured them all and haven't been able to figure this out. I'm trying to control my projector via a R232 port. I have a USB to R232 cable, ...
0
votes
1answer
114 views

Reading analog value Raspberry Pi

I am a newbie with the Raspberry Pi. I want to measure Temperature Reading in 12/16 bit resolution. can someone guide me how CKT should be designed and How can read value using software. usually ...
0
votes
3answers
19k views

sudo raspi-config not working: boot partition not mounted

Just today I installed a version of Raspbian Jessie on my Raspberry Pi 2 model B. So, I wanted to disable the function that automatically sends the user to the GUI. But, when I typed in sudo raspi-...
0
votes
0answers
23 views

How do I read all registers of an INA219 sensor via SMBus in Python at once?

I'm trying to Connect my Raspberry Pi 3B+ with a Raspbian 10 to an INA219 current sensor (that also returns voltage and a premultiplied power) via SMBus in Python 3.7. After destroying one Raspberry ...
0
votes
1answer
32 views

C++ Long Double or equivalent on ARM64

I'm having a hard time getting a straight answer about long double precision on ARM64 architecture. I'm engineering a scientific machine requiring extreme precision, and the driver, which I will write ...

15 30 50 per page