All Questions

How de do. I'm considering using a Rpi to display our system stats and build monitors for the codebase in our office. I've been questioning how i can secure it down so no one will be able to get any ...

How can we prioritize raspberry-pi3b+ model so that if my "code on python" is running then the raspberry-pi should not perform any other task in background. Since i have to calculate time taken by my ...

I am very new to Rasberry pi, I have written a program in python and connection with postgre sql. I am running python application on Rasberry pi and my database is on Windows server in LAN. Can anyone ...

Is there way to unlock min cpu frequency for Ubuntu 19.10 64-bit for raspberry pi? First, this linux does't have /boot/config.txt similar to raspbian or ubuntu 18.04 from berryboot Next, the ...

I have this adapter (https://global.rakuten.com/en/store/denshi/item/55154/) powering a set of RGB screens that I picked up from adafruit. Essentially I completed their pi/rgb matrix project and want ...

As I am sure most of you know by now, the Raspberry Pi 4 uses an onboard EEPROM for the initial boot configuration. The Foundation has stated that they plan to have a tool that can modify the embedded ...

I need, for a project, to connect on the same RPi (a 3B+) a NFC lector, the Sense Hat and also be able to use 26 GPIO port for additionnal LED and button. The project is a kind of a physical "Keep ...

I'm creating a clocking in system for work and I'm considering using a raspberry pi for the card interface. Having never used one before I just want to check if this is possible. I've seen a few ...

I am trying to get negative ADC value by giving -2.5 v to AD/DA high precision expansion board with Raspberry Pi 4. I am using python programming with twos complement of buffer size 200, unfortunately,...

So I am a beginner in raspberry pi and python and app inventor but I don't need to know at the moment the "how" of this project. I want to know if my android phone that is programmed with MIT app ...

I'm running PiHole in a docker container on a Raspberry Pi 4. I've disabled DHCP on my modem router and enabled it on the pi. On IPv4 everything seems to be working just fine, but on IPv6 devices ...

I am trying to install opencv 4 on my raspberry pi 4 using these instructions from this website but I have come across an error when I run the command mkvirtualenv cv -p python3. The error is found ...

how display output data from python shell to GUI listbox using button ?

Hey I'm doing a project and I need to combine programs of dht11 sensor and soil moisture sensor..but they're in different directories and their libraries also. I'm not able to run them simultaneously ...

I have purchased this 4G HAT and I'm using it with this module in a raspberry 4. I use the USB connection. I installed a ppp connection and everything is working correctly. My problem is: how do I ...

I'm trying to use an Xbox360 wired controller to jog a CNC machine driven by a Raspberry Pi 4. I'm trying to use a node.js module called xbox-controller that interfaces to the Xbox360 controller via ...

I have a python script which generates a set of tuples upon every iteration. I want the python script running on the raspi to receive the values as quickly as possible and do further processing. Both ...

I'm not that familiar with Linux but I'm running a pi-hole. I've just changed my network config on my router (Draytek) that supports VLANS and interlan routing. I have the PI on its own VLAN (2) LAN 3,...

I am writing a general-purpose stepper motor driver C shared library for the Raspberry Pi using PIGPIO (pigpiod C interface) for 4 to 7 motors using A4988 drivers. I designed an interface board (...

I'm trying to save video from my picam and it ends up like this: import picamera # set up camera camera = picamera.PiCamera(); camera.resolution = (640, 480); camera.framerate = 24; # record camera....

Devices: RPi3B+, USB to TTL CH340, SIM800C GSM module Here are the connection between the USB to TTL and GSM module respectively 5V-VCC, TxD-RxD, RxD-TxD, GND-GND Then I attach this USB to TTL to ...

I had successfully set up my raspberry pi as an access point as WiFi repeater followed this guide: Access point as WiFi router/repeater, optional with a bridge. I would like to set up my raspberry ...

I recently migrated a project of mine from Pi 3B+ to Pi 4B only to find that it now runs much slower than before. After investigation, it appears the culprit is the atomic library that I use heavily. ...

So ive been using dhcpcd all this time without realising that the package isnt installed. The problem is that the ip on my laptop isn't the same on the raspberry pi (which is hosting an ap). When i ...

I run Noble on the Raspberry Pi 3 (with Bluetooth) and i receive RSSI values from the nearby beacons that i have. However, if noble is ran the whole times i occasionally get the following error. ...

I have connected my circuit as mentioned in the below link: Writing/Reading an EEPROM chip using 1-wire bus I am able to read and write through commands mentioned in the link. I would like to know ...

I'm building the following script to be used with a RPi 4, with a USB Webcam and a TFMini Plus Lidar sensor (also USB plugged): import time as t import serial import datetime import cv2,io,imutils ...

I was trying to fix a problem that the pi can only connect to the internet using the 5-Ghz wifi but not 2.4-Ghz, after messing with router and the network manager settings, I couldn't solve it but end ...

I tried many answers on different websites. Raspberrypi.org, this site, linux.com, and others I cannot list. I tried Analogue with sudo raspi-config. I also tried amixer cset numid=3 1. I tried ...

When I was trying to mount a network share on boot by adding the following line to the /etc/fstab file: //<server>/folder /home/pi/target cifs username=<username>,password=<password&...

I have a RPi 3 compute module in a dev board that was given to me by another developer. It has code on it I need to test. This CM is running Raspbian Jessie. The unit is connected via Ethernet cable ...

I am running AGL (more about it here) image on Raspberry PI 3. I want to send application files from my laptop (where i build it and which has stable wi-fi connection) to the raspberry using scp. What ...

I'm trying the following command from the Pi to the PC (169.254.112.124): sftp pi@169.254.112.124:/C:/Users/Desktop/testtest.xml But I get this error: ssh: connect to host 169.254.112.124 port 22:...

I have a solid state relay but I think I don't need it anymore.

Someone managed to get openfortivpn installed and working on a Raspberry PI with vanilla Raspian image? It seems it should be supported but all I get with apt-get install openfortivpn is that "the ...

I have tried using miraclecast, which builds without problems but won't find a Miracast screen which my Windows 10 laptop has no trouble to work with. pi@raspberrypi:~ $ sudo service wpa_supplicant ...

I need a help . How can i install stm32cubeprogrammer on raspberry pi 3 . thanks .

What I tried: crontab -e creating a desktop entry at /home/pi/.config/autostart edit /etc/rc.local My python script: import os from gpiozero import Button from time import sleep from pynput....

The posts I found online show conflicting information on how the J2 header should be used, and seem to be derived from trial and error. None of the answers I managed to find seem authoritative; i.e. ...

Bit of a raspberry pi newb here so bear with me! Im using a raspberry pi model 3 for a university project, which means that I hop around different locations and have to get on different wifi networks. ...

Is there any place that debugging messages get logged during the start4.elf portion of the boot process? BEFORE start4.elf runs, when the EEPROM is running, it's possible to configure UART output. ...

I would like to use hardware PWM on a GPIO port to generate RC-5 IR codes with an IR LED. I read that .NET Core now has PWM support and that the Pi has at least one PWM-enabled GPIO pin, but I can ...

I have got this new raspberry pi zero and I am trying to figure out the best way to access it. It would really help if there is a way to do this without the need of a miniHDMI cable. I would prefer to ...

I am embarking on a cluster project using PoE hat. PoE hat is compatible with RPI4B. Vendor is selling "Raspberry Pi4." https://en.wikipedia.org/wiki/Raspberry_Pi#Specifications shows only 4B, so I ...

First of all i want to say that i'm new to all of this, so please dont hate me if the answer to my problem seemed obvious to you. I just tried to follow this tutorial to set up my Pi 4 as an Access ...

So at first I had a problem with my raspberry pi connecting to any Wi-Fi connection because of an error which sounds like this "no wireless interfaces found". I've tried several fixes, nothing worked ...

I'm building a security camera setup, and am displaying the camera feeds (RTSP streams) using a Raspberry Pi. I only want the display to be active when a motion event is triggered - this is handled by ...

For a project, I got to put Raspberries in client's homes, by a lot of clients. I also have to be able to ssh to them, so I can update them. My solution for the ssh is to set up a VPN from a server ...

I need to detect when the tension in a (micro) winch cord either exceeds or falls below maximum or minimum tension. The winch is powered by a stepper or servo motor and the intent is to back off when ...

system: raspbian lite 10 I made the .bash_aliases with some aliases. Accidently i put if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi into .bash_aliases instead of .bashrc. After sourcing ...