Questions tagged [connection]

A connection describes a link between two systems where data can be exchanged.

Filter by
Sorted by
Tagged with
0 votes
0 answers
35 views

Connecting multiple sensors, servos, etc. to Raspberry Pi 4 B

Hello everyone 👋 I recently got a bunch of sensors, servos, transmitters, etc. (like literally I have now a hundred of different sensors) But now, how to connect it all to Raspberry Pi (in my case ...
bbybunny's user avatar
0 votes
0 answers
14 views

SSH from Windows 10 to headless RPi works, but from Ubuntu 22.04 doesn't [closed]

I have a Lenovo Thinkpad P1 laptop that doesn't have an Ethernet port, so I'm using a Startech Ethernet adaptor. I have a dual boot on the laptop with Windows 10 and Ubuntu 22.04. I connect directly ...
Radu Lucian Radulescu's user avatar
0 votes
0 answers
25 views

Connect to a network but no internet, not even the default gateway

I have a Raspberry Pi 4. I can establish a connection fine (wireless or cable), but packets are not getting out. I can't even ping the default route... Please see attached image. Sorry, typing this on ...
Merc's user avatar
  • 145
0 votes
0 answers
23 views

Can't send document files from pi to my phone or laptop on bluetooth (it is showing up as audio)

Running Debian version 12 on a Pi4B. My pi is my typewriter, and I want to send document (WordGrinder) files from the pi to my Pixel phone (or laptop) over bluetooth. I have a strong bluetooth ...
PangolinGold's user avatar
0 votes
0 answers
94 views

Hooking up a rotary encoder to raspberry pi 4

There are a ton of questions on this, and I'm pretty new at working with rotary encoders. I purchased this one Taiss E38S6-600-24G, thinking (incorrectly I might add) that it would be a simple thing ...
Greg W's user avatar
  • 1
0 votes
0 answers
215 views

Can't connect to the INTERNET on a new and fresh install of Ubuntu Server 23.10

After a week of trial and error, Ubuntu Server 23.10 is FINALLY running on my Pi. FRESH install! The device is a Pi Zero 2 W, and the OS is currently running in loopback mode. It is unable to get ...
Omar's user avatar
  • 111
0 votes
0 answers
80 views

Raspberry Pi Zero W losing WiFi-Connection after AccessPoint restart

I have noticed, that raspberry Pi’s are predictable in losing their Wifi-Connection permanently after the accesspoint was turned off (power off). I have tried multiple raspberrys (10+) and three ...
neopulsar's user avatar
-1 votes
1 answer
54 views

Raspberry Pi 4B not discoverable

Just bought a new Raspberry Pi 4B, and im installing this device with the recommended OS(64b) using the Raspberry Pi Imager. Im using LAN cable from my router for internet connection. The issue is, i ...
ironborn1945's user avatar
0 votes
1 answer
306 views

Unable to connect my laptop to Raspberry Pi 4B via Ethernet with the new Bookworm

I installed bookworm a couple of days ago and today I was at the university when I realized that I couldn't connect via ethernet cable. Using TigerVNCViewer gives me this message: Failed to connect to ...
ed190's user avatar
  • 1
0 votes
0 answers
20 views

How to connect 64+ light sensors to a board?

Making a robot to play chess with physically. I've embedded light sensors into the board but I'm not sure how to manage that much input? What would I need to manage each input individually. (Rasp Pi3)
Justin Miller's user avatar
0 votes
0 answers
53 views

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 ...
Jiwan Rai's user avatar
0 votes
0 answers
58 views

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", ...
Alper's user avatar
  • 1
0 votes
2 answers
258 views

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 ...
masami's user avatar
  • 1
1 vote
1 answer
51 views

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 ...
Marko's user avatar
  • 11
0 votes
0 answers
313 views

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....
user1143191's user avatar
2 votes
1 answer
212 views

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 ...
none none's user avatar
  • 121
-1 votes
2 answers
598 views

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 ...
PythonKid's user avatar
3 votes
2 answers
105 views

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 ...
Rodolfo BocaneGra's user avatar
1 vote
1 answer
630 views

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,...
Adam Turaj's user avatar
1 vote
0 answers
41 views

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 ...
nickhir's user avatar
  • 73
1 vote
0 answers
130 views

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 ...
Paschl's user avatar
  • 11
2 votes
0 answers
60 views

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 ...
Albert B's user avatar
1 vote
1 answer
749 views

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 ...
dvmc's user avatar
  • 13
0 votes
0 answers
32 views

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 ...
Leo's user avatar
  • 1
0 votes
2 answers
4k views

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.', ...
Andreas's user avatar
0 votes
0 answers
71 views

"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 ...
minitauros's user avatar
1 vote
0 answers
65 views

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 ...
N_H1922's user avatar
  • 111
2 votes
4 answers
7k views

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 ...
Pixeled's user avatar
  • 125
2 votes
3 answers
676 views

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 ...
Joshua Mitchell's user avatar
0 votes
0 answers
52 views

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 ...
Etsaf's user avatar
  • 101
0 votes
0 answers
130 views

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 ...
Elliot Cullen's user avatar
-1 votes
1 answer
147 views

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 ...
arm's user avatar
  • 9
1 vote
0 answers
2k views

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&...
Marco Bobinger's user avatar
0 votes
2 answers
2k views

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 ...
weisbrja's user avatar
0 votes
0 answers
657 views

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 ...
Chandani Mourya's user avatar
0 votes
1 answer
631 views

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. ...
Martin's user avatar
  • 1
-1 votes
1 answer
187 views

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). ...
PepitoGrillo's user avatar
0 votes
0 answers
43 views

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 ...
praw's user avatar
  • 1
0 votes
1 answer
27 views

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 ...
Simon Payne's user avatar
0 votes
1 answer
1k views

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 ...
a.t.'s user avatar
  • 171
2 votes
0 answers
208 views

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 ...
Dango's user avatar
  • 21
0 votes
0 answers
104 views

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/...
Amsterdamned96's user avatar
1 vote
1 answer
3k views

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 ...
zyad ali's user avatar
0 votes
3 answers
3k views

(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 ...
SnifflinDrake's user avatar
1 vote
1 answer
438 views

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....
Owen's user avatar
  • 21
0 votes
0 answers
588 views

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 ...
user134068's user avatar
0 votes
0 answers
79 views

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 ...
Ian Hyzy's user avatar
  • 205
0 votes
2 answers
193 views

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 ...
user133742's user avatar
1 vote
1 answer
518 views

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?
Pierre Auger's user avatar
0 votes
1 answer
59 views

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 ...
genadi325's user avatar

1
2 3 4 5
8