All Questions

When I run this Python3 script from the command line or from Thonny I get correct results. When I run it through crontab the variables ipaddress an ssid stay empty. Can anyone tell me why? Any ...

I am facing this problem even after trying many recommendations from this site. I am using windows 10, raspbian stretch lite(2019)/raspbian stretch(Nov2018) and I don't have a monitor. Earlier I could ...

I don't have a HDMI screen, nor do I have access to the router. From what Ive been told, it has Kali installed. I am connecting the Raspb directly to the computer with a Ethernet cable. I have tried ...

I am using raspberry pi 3b model with android things. I need to attach GPS module NEO6mv2 with the pi. How can I disable the serial debugging console?

I want to calibrate a touchscreen named "eGalax Inc. USB TouchController" on my Raspberry Pi. I think X and Y axes of the touchscreen are inverted. I used xinput_calibrator for this purpose. When I ...

I booted and used my Raspberry for the first time yesterday. I used USB mouse, keyboard and monitor first, enabled ssh and vnc and established connections with my Windows laptop going forward. I did ...

I am currently working on a project using laser module, a capacitor and an LDR. After looking online, I found a library in Python called GPIOZero that allows me to do this directly, as follows: from ...

I am trying to run some tests about network on my Raspberry Pi 3 B+, and I have raspbian on it. I installed flent via apt install flent, and I ensured that non-free repository is enabled. I still can'...

The idea is the following: I have a Raspberry PI connected to a breadboard. To this breadboard, I would like to connect (digital and analog) sensors and actuators while the PI is running. Or remove ...

I am working on project which involves sending datastream from raspberry pi to Windows PC. This should only be done through Ethernet link. I looked for ethernet libraries but i did not find any. Also ...

Hi guys I want to create a basic GUI with TKinter. This is my code from tkinter import* import tkinter.font win =Tk() win.title("Test") myFont = tkinter.font.Font( family = 'Helvetica', size = 12, ...

I am working on a self driving rc car project and I need a servo to steer my car. As I was getting a bit jitter with RPi.GPIO I tried pigpio library. I am using a Raspbery Pi Model B. But it won't ...

I am booting my pi as text with autologin. Even after modifying the bashrc file in the /home/pi folder, I still see the text in white. I know that the color is enabled, because during the boot, I ...

I get these error messages: mmal: mmal_vc_component_enable: failed to enable component: ENOSPC mmal: camera component couldn't be enabled mmal: main: Failed to create camera component mmal: Failed to ...

I have made a facial detection app using Python on RaspberryPi. The code is working fine and writing the name of the detected person on the camera's screen but what I want to do is to display the ...

TL;DR, usb-wifi works, but it's extremely (!) slow compared to onboard wifi, even though the dongle has a big antenna and a a better signal quality. I looked far and wide and did all I could find, but ...

My /etc/apt/sources.list file: deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi # Uncomment line below then 'apt-get update' to enable 'apt-get source' deb-src http://...

I have a Raspberry PI 3 B+, and when I activate the GPIO 4 as output and checking agains a multimeter I get its 3.3V as expected. If I connect the GPIO4 to one end of a coil (http://www....

A few days ago I asked a question that had (probably) had to do with en interrupt being fired by an ENC28J60 chip (SPI) and messing with the UART buffer. See here. I found a software fix for this ...

I ran a program with selenium from selenium import webdriver driver = webdriver.Firefox() driver.get('http://www.google.com') and this error accured Traceback (most recent call last): File "/...

I need to install and use Qt for my gui medical device (dental glazer furnace) part into my raspberry zero like this: SO I have tried cross compilation qt first which I have some problem which doesn'...

Whenever the system starts, the zfs-import init script does not run: root@kapnet:# /etc/init.d/zfs-import status ● zfs-import.service - LSB: Import ZFS pools Loaded: loaded (/etc/init.d/zfs-import;...

So, here's a synopsis of what I am trying to do. I want to put 3 RC522 readers side by side inside of a book, facing the cover, that will be constantly on, using a Rpi zero W. When an RFID chip gets ...

I'm trying to make my pi work with mt7612u driver, which is included in 4.19.y branch. But just got following error: [ 34.271279] mt76x2u: probe of 1-1.5:1.0 failed with error -22 [ 34....

I have Raspbian Stretch installed on my RaspBerry Pi Model 3B+. I paired the speaker using bluetoothctl, but I cannot see it in raspi-config (Advanced Options -> Audio) list. Also I tried several ...

please help me. how to send data / capture/image from rasberry pi to android or smartphone device rasberry pi 3 webcam smartpohone adroid xiomi note 4

I am using some PCF8951 board like this: I remove all the jumper, like this: This is every thing: Then I plug two senor board to this board. Everything plugs into AIN0 will get the correct value. ...

How to connect the 3.3 V Raspberry Pi UART logic level to the 5 volt RS232 C logic level?

I am using Android things on Raspberry Pi 3 B with a 7-inch touch screen. Currently, I always see a yellow thunder bolt sign on the screen which means that the Raspberry Pi isn't receiving a high ...

Following the instructions in https://www.tal.org/tutorials/building-qt-512-raspberry-pi,: wget http://download.qt.io/official_releases/qt/5.12/5.12.3/single/qt-everywhere-src-5.12.3.tar.xz tar xf qt-...

I've been looking for a while to how to get the kind of click of a button on GPIO. Is it a single click? Double? Triple or more? Is it a long click? a very long click? a combination of them? I haven'...

I am a realative RPi noob so forgive me if this is a simple problem. I am making a keycard system with the RC522 reader, and I have everything wired up correctly. It works with writing and reading ...

I successfully made the buggy from the raspberry pi website: https://projects.raspberrypi.org/en/projects/build-a-buggy and I am happy with it because it works and everything. BUT the chassis is made ...

I am about to build a photobooth with my Canon DSLR and a RasPi. Now when I plug the USB of the camera, raspbian will automatically mount it and prevent my command line scripts from using it (device ...

I'm looking for a way to connect fingerprint scanner with raspberry pi3 using python. I'd like to use only gpio or hat (not usb) interface. I'm searching for a while without figured out, so I've ...

i need to ensure that even if my executable C/C++ codes are copied to another raspberry Pi (dumping the SDcard), they will not run there. what are the possible ways to do this. Update: it seems ...

When I attempt to connect via SSH from the Pi (client) to another machine (server) on a port other than 22 I get a "No route to host" error message: Successful SSH pi@raspberrypi:/opt/pihole $ ssh ...

Goal: Install Python3.7 on the Raspberry Pi. Then install Numpy for Python3.7 Found this very useful Github Gist: https://gist.github.com/SeppPenner/6a5a30ebc8f79936fa136c524417761d Ran the ...

I am doing video conferencing on my Raspberry Pi 3b+. I have tried both Jitsi (better) and Google Meetings but both of them have a 3-5s lag between the real world and the self-image shown on the pi (...

I want to connect the TX and RX pins together and from the command line echo some text into /dev/ttyAMA0 and tail the result (from somewhere). I ultimately want to communicate with an Arduino but ...

Header Pins 1, 2, 4, 17 are labled 3V3 and 5V on the schematics but the connections to the BCM and/or regulators are not in their documents. It appears the 5V node is coming from the raw USB/external ...

I have hard shutdown the raspberry pi zero and after that, I cannot read the SD card in into it; reader (connected to my Linux OS pc). But the sd card works in the pi connected with LCD TFT 5 inches,...

What is the best way to connect a Raspberry Pi with Firebase?

Following the instructions in https://www.tal.org/tutorials/building-qt-512-raspberry-pi,: wget http://download.qt.io/official_releases/qt/5.12/5.12.3/single/qt-everywhere-src-5.12.3.tar.xz tar xf qt-...

I'm building a power relay controller based on RPi and I want to be able to turn my whole system off by asking Alexa to shut it down. I have considered using an Alexa-controlled "smart" relay to ...

Hi I have OSMC installed on berryboot. And I want to Add my own Subtitle fonts (.ttf). I tried to locate Font file from OSMC File Manager. But I only found a file named "addons" this was the path: ...

I'm running Raspbian Jessie 4.9.35-v7+ on a Pi 3 Model B. I cobbled together a basic python script to monitor a GPIO pin and send a network signal to a remote application, made two copies of the ...

I'm trying to generate signals using an AD9833 and a raspberry pi 3 model B+ but each time I build my programme I have this error message: ad9833.c:36:2: warning: implicit declaration of function ‘...

I have to setup Quectel EC25-E hooked up to my Rasp Pi Zero. I can setup the ppp connection but manually. This is what I do: Quectel module ppp connection However, I have to make this pi headless ...

I'd like to print on the LXDE Pannel (LXPanel) the IP address of my Raspberry Pi, so I can have a direct view about how to connect to the Pi from another computer when I reboot it, since its IP is ...