Questions tagged [connection]
A connection describes a link between two systems where data can be exchanged.
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TFT HSD - 9190J-D1 connection to Raspberry Pi model B
I have Raspberry Pi 4 Model B
I want to connect SPI TFT 4" LCD HSD-9190J-D1 using GPIO pins.
Kindly help me up with proper connections and necessary drivers required for the LCD to work as ...
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wired connection between raspberry pi and android app
I am reading Can data with Pcan, and I am transferring my Can data to my Raspberry Pi 4. With this code
import can
import serial
# CAN bus setup
can_bus = can.interface.Bus(bustype="pcan", ...
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1
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server stuck at socket.accept()
I am trying to establish the connection between my pc (windows11) and rpi 4 (buster v10). I have set rpi as an access point so that it has a fixed ip address, for example, 192.168.20.1 and connected ...
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run script after some device from dhcp ip pool connect to hotspot raspberry pi 4
I was searching answer from over a week and still don't find it. I'm fresh user of raspi and linux and network config so be patient for my stupid questions :)
I describe my problem.
I used raspi to ...
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Wifi adapter not showing up in ifconfig and nmcli
Neither ifconfig -a nor nmcli dev show display a wifi adapter on my Raspberry Pi4B.
After executing the following commands (which originally were listed in a related post (https://forums.raspberrypi....
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SSH connection to Raspberry PI Zero W with modern Raspberry OS imager
I'd like to connect via ssh over usb from a linux laptop to a Raspberry Pi Zero W 1.1. I looked up several tutorials and followed them to the best of my ability but they seem to be outdated, as they ...
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I cant connect my Raspberry Pi Pico
So I'm trying to connect my Raspberry Pi Pico to Thonny but I doesn't let me select com4 or anything else except "try to detect port automatically" and when I put it, it does not let me run ...
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Where to make electronic connections diagrams
I'm making a little project with a raspberry pi zero, for documentation purposes I'd like to add some connection diagrams/representations, my main purpose is to have an easy reference to see pin ...
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Raspberry PI not picking up Logitech C270
I am currently struggling because my Raspberry Pi is unable to connect to the webcam. Running lsusb never shows anything (keeps loading) and v4l2-ctl --list-devices says Cannot open device /dev/video0,...
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Can ssh to raspberry pi and download packages but cant ping any sites
I am encountering a very odd problem and would greatly appreciate some help.
I can ssh to my RPi and also connect to it via a remote desktop connection.
However, once logged into the RPi I cant ping ...
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Raspberry Pi Zero W SSH: `client_loop: send disconnect: broken pipe/timeout/Connection reset`
I am using a Zero W for Environmental Data Logging.
I am using a 3A rated power supply.
The device itself is exclusively used remotely via ssh or VNC.
For both cases, I am spontaneous losing ...
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Raspberry PI 3B+ losing connnection
I have a problem with my raspberry. I can connect to it using putty(ssh) or VNC Viewer, but after few minutes the connection drops.
I still see it listed when i go to "connected devices" on ...
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1
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509
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Can´t SSH into a Raspberry Pi
I am experiencing problems with SSHing into a home Pi that I have.
When trying to SSH into it I get this error:
kex_exchange_identification: read: Connection reset
When using the -v option I get this ...
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Unable to connect to Raspberry Pi 3 B+ from MacBook Air through wire
I am trying to establish a wired connection between my RPi 3 B+ and my MacBook Air. After I connected the two devices with a wire, my MacBook got IP=169.254.214.218, and my RPi got IP=10.0.0.21. When ...
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Problem Connecting Raspberry pi Pico with Thonny
Whenever i download the micropython uf2 file from Thonny and wait for it to reboot i get this message:
Unable to connect to COM4: could not open port 'COM4': PermissionError(13, 'Access is denied.', ...
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"IP forbidden" for Raspberry Pi, but not for laptop, after home IP change
The problem
Recently my ISP gave my home a new IP address. I run a program on the Raspberry Pi that connects to some external APIs that have my home IP address whitelisted. After the IP change, a few ...
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Unable to connect to any of the torrent indexers
I have freshly setup DietPi on my Raspberry Pi 4 (4 GB). I had the same DietPi set up earlier for months and it worked fine but after this fresh installation, I am unable to connect to any of the ...
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Why can I not login to my raspberry pi 4b?
I am attempting to log in to my raspberry pi 4b for the first time. I have the wifi file all sorted out and I have a blank file called ssh. I have done ping raspberrypi.local and its shows up and ...
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3
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Connecting Several Pis over Network
I am running an Intro to Robotics class, and I am having them create different projects to use in my classroom with pi zero 2ws. For example: a countdown clock using LED lights. I want to be able to ...
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Is it normal my wired internet connection is capped?
I'm experimenting quite a surprising slow internet connection on the Pi. I scrolled a lot through the web and I'm unable to figure out whether it's supposed to be that way or not: some people seem to ...
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RPi 4 won't connect to wifi extender
I have a RPi 4 which i am wanting to setup wirelessly - this works fine on my home WiFi. But because I am very far away from my router (other side of house) it is incredibly slow. I do have a WiFi ...
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1
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Can 2 different wires be connected to the same GPIO pin?
I am trying to make a voice assistant with the Raspberry Pi and ReSpeaker 4-mic array.
ReSpeaker 4-mic array requires 40 pins to be connected to Raspberry Pi. But besides that, I want to connect the ...
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Errno 121 Remote I/O error happening too often on Raspberry Pi 4 [closed]
I'm using a Raspberry Pi 4 - Rev1.4 together with a tc9548 multiplexer and 2 additional I2C sensors behind each multiplexer channel.
OS version:
AME="Raspbian GNU/Linux" VERSION_ID="11&...
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SSH into Raspberry Pi connected to Linux Laptop via Ethernet cable
How do I SSH into my Rasperry Pi which is directly connected to my Linux Laptop via an Ethernet cable? As far as my research went, it does not get assigned an IP, which is the reason why I can not ...
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468
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Issue with Raspberry Pi and VNC Viewer
I am using a Raspberry PI 3 and am trying to connect it with my laptop using VNC viewer. My Raspberry PI has not been able to connect with VNC viewer since the last 2 to 3 days after I changed the ...
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495
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Connection to WiFi when it shows up - DHCP timeout?
We switch off WiFi an a raspberry over night. In the morning both is switched on together. Unfortunately the pi starts faster than the access point and therefore the pi could not connect to a wifi. ...
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Unable to connect Raspberry to Wifi
I want to connect my Raspberry to Internet through Wifi, but it can't detect any Wifi. I've read that only Pi 3 and + models can do that, but mine is a Raspberry Pi 3 Model B Plus Rev (see picture). ...
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Raspberry Pi | Data Communication | Process Data
I need to receive electricity data from a charge controller with a raspberry pi and process these data on the hmi screen. How can I get accurate information about raspberry pi data communication, how ...
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Bespoke Power Supply cable issue
I am trying to create an in-car (headrest) entertainment system using the Pi 3B with 7" screen using OSMC, when OSMC is shutdown it does not fully power off the screen, I can detect the shutdown ...
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1
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Detecting connection between two arbitrary GPIO pins on Pico [closed]
I wrote a code that I run in Thonny which detects if a connection is made between the 3.3V output and a GPIO pin on the Raspberry Pico:
print("Hello World!")
import time
import digitalio
...
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Error Connecting Raspberry 4 model B to Windows 10 Directly with ethernet cable
I received my Raspberry Pi 4 Model B yesterday installed latest Raspberry OS on MicroSD and have been trying to connect it to Windows 10 directly with a Ethernet cable "no hub or router" and ...
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Trouble setting up SSH "Connection Timed out" on Headless RPI 4
I've decided to enter into the world of HomeLabs with the acquisition of an RPI 4. I went throught the procedure of setting up the RPI and everything worked correctly.
I've used both a(n) dynamic/...
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How to use a Raspberry pi as a WiFi-to-Ethernet converter?
this is my first question on this site.
My problem is that i have an old PC lying around with no WiFi adapter but it has an Ethernet adapter.
I want to connect my Raspberry pi to WiFi then connect it ...
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(Another) Cannot SSH to Raspberry Pi from Mac -- Port 22: Connection Refused
So, as the title states, I cannot SSH to a Raspberry Pi from my Mac. I have done so in the past, but can't figure out why it won't work now.
Unless stated otherwise, all devices I mention below are ...
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Folding at home stuck on "Connecting"
Information
Hello. I'm having some issues with the Folding@Home Client for raspberry pi. I am using a raspberry pi 4 with the 64bit version of Raspberrypi OS (Found here: https://downloads.raspberrypi....
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connection to port 22 refused before asking for username/pword
I've added an empty ssh file to the /boot directory. When I run ssh [email protected], I get this error: ssh: connect to host raspberrypi.local port 22: Connection refused without being asked for ...
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Can I use this screen from a digital brochure with the Pi?
I recently received a kind of digital brochure that was just this large screen in a cardboard envelope. I ripped it out and I'm curious - can I drive this with a Pi? I tried looking for ribbon cable ...
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SSL certificate for multiple dock containers running on RPI 4
Hi guys I have a question regarding docker containers and ssl certificates.
I want to install more than one docker containers like pi hole , Bitwarden and motioneye .
To access them I have to type ...
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How can Rpi connect to and read the DIY PH-4502C pH Sensor?
How can Rpi connect to and read the DIY PH-4502C pH Sensor?
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SSH - Can't connect from LAN after switching to another network
A couple of days ago I bought a new raspberry pi 4, for now, I don't have desktop support but I set it up in headless mode (installed raspbian on sd card).
I was able to connect it using ssh when it ...
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1
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504
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Only 8 devices can connect to my pi 4 [closed]
I conducted tests today with a Rpi4 4Gb RAM as a wireless access point and I wasn't able to connect more than 8 devices. But then I want to be able to connect at least 20 devices. Pls, help.
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Raspberry Pi 3b+ loses WIFI connection after 10 minutes
My Raspberry Pi 3b+ loses WIFI connection after 10 minutes, after it loses connection, I cant re-connect because there are no WIFI networks in the dropdown list. My only option was to completely ...
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202
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Pi 3A+ keeps loosing connection randomly
I'm trying to set my rPi 3A+ as a local server running a docker container that is constantly logging info from a service. (It's running Teslamate)
I've been having trouble keeping it connected to my ...
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What's the best way to remote control a Raspberry pi - powered robot? [closed]
I'm going to build a robot powerd by raspberry pi and i wnat to control it remotely,
the principal tasks that need to have a remote exchande of data is:
the streaming of 3 cameras
the monitoring of ...
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203
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Can a Raspberry Pi boot a small OS/application off of a floppy disk?
Is it possible to develop a small OS/script for the Raspberry Pi that can boot from a floppy disk? If so what knowledge and tools would be needed to accomplish this?
i.e. No sd card, just a floppy ...
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Failed to get D-Bus connection: Unknown error -1
Well I ran into a major network failure when I try to get two PIs talking to each other directly through their Ethernet ports. They use to connect to each other and communicate, but for some odd ...
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503
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RealVNC Connection Problem
I have a question regarding RealVNC and the Raspberry Pi 3B. I can't connect to the Raspberry pi and I get following error message: "Timeout while waiting for a response from the computer".
...
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What power supply can I use for 2 servos?
I am a complete noob when it comes to raspberry. I have 2 servos MG996R that I need to power from an external power supply. Currently I am doing it from the board, and when I turn both of them the ...
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Connecting 2 Raspberry Pi's for Extra GPIO ports
For the project I am working on, i will need more GPIO pins than the Raspberry 4B provides. I'm looking into combining 2 Raspberry 4B's together to get extra GPIO pins. I also looked into port ...
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2
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528
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SSH to multiple Raspberry PI 4B
I have 2 PI that are connected to my local network first PI has the IP: 192.168.1.48 and the second one 192.168.1.49 that I can SSH to them in my local network without a problem, however I opened a ...
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