Questions tagged [connection]

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

Filter by
Sorted by
Tagged with
0
votes
1answer
6k views

Send audio from one Pi to another- Same network

Beginner here. The Goal: Send audio source from one Pi to another over the same network. Both Pi's will have a static IP and will be locked onto each other. I've attached a diagram for ...
0
votes
1answer
119 views

Rpi3 tethering with mobile phone

I would like to give an internet connection to my rpi3 no matter where I am. I have no screen and no keyboard for my rpi3, but I can modify the sd card in my computer. I saw a lot of thread where ...
1
vote
1answer
946 views

How do I connect this anemometer to a Raspberry Pi? [closed]

I want to connect an anemometer to my Raspberry Pi 3. I'm trying to use the Maplin N25FR Wind Speed Sensor. How do I connect it to my Raspberry Pi? I found this picture online, but I don't ...
2
votes
2answers
6k views

Connect to Raspberry Pi 3 without ethernet and keyboard

I have a Raspberry Pi 3 without any monitor, keyboard or even LAN cable. I only have a laptop with Ubuntu. Can I connect to Raspberry Pi 3 via wifi+SSH without ethernet? I do not know the IP of ...
1
vote
0answers
55 views

Raspberry pi one as vpn router

I have a router that is connected to a modem. All connected devices have internet access through the router. I would like to connect a raspberry pi (version one, model B) to this network via cable, ...
0
votes
2answers
895 views

RPi-iOS communication over WiFi

Here’s my plan: have a python script running hardware pwm code for a brushless motor im using. The idea is to have an iPhone have an app where 1. The python code can be interacted with to adjust a ...
1
vote
1answer
1k views

How can I connect to my Raspberry Pi 3 over SSH in this scenario?

I have a new Raspberry Pi 3 B 1.2 and I am trying to SSH into it. I don't have a monitor or an HDMI cable. I have already etched the img file with Raspberry Stretch onto a 64 GB SD card using Etcher....
1
vote
2answers
691 views

Controlling robot using raspberry pi 3 WiFi with no server, no web, no internet

I want to build a mobile robot with android as a controller from long range, I think it's best to connect using wifi, not a bluetooth because it's too short range. My problem is "how to connect my ...
0
votes
2answers
213 views

How to interface to a Pi without knowing its IP or having a large HDMI monitor?

I wish to access a RPi's shell, but I do not wish to lug around some big display and ideally 120 volt power wouldn't be required. A Linux or Windows laptop are acceptable or maybe some other typical ...
1
vote
2answers
589 views

How do I connect an S beam load cell to a raspberry pi 3 and then to my Laptop?

I am a university masters student who is currently working with a group of mechanical engineers to built a tabletop tensile and fatigue testing machine. To measure the forces being applied to a sample ...
0
votes
0answers
712 views

Extend WiFi range of build in access point

We're using our Raspberry Pi 3 to control some music and lighting over it's access point with a smartphone - completely offline, on a handcart. Now we have connection problems when we're getting to ...
1
vote
0answers
141 views

SATA/USB-connected drive is sometimes not recognized on rpi

I use a sata/usb converter to connect a Samsung drive to the rpi. It is often not recognized at system start. The drive is recognized without problems when I plug the USB into my ubuntu laptop. I ...
0
votes
2answers
285 views

Raspberry Pi ssh with laptop using putty

How to find whether the ssh port is open and RaspberryPi have sshd running or not?
1
vote
3answers
9k views

Raspberry Pi Zero W can't connect to WiFi through desktop environment

I have a Micro SD card with 2017-08-16-raspbian-stretch on it. I confirmed that the cards content matched the img file exactly. Now I put the card into my Raspberry Pi Zero W and connected hdmi, ...
0
votes
3answers
2k views

RPi2: Python requests fails for https (Errno 101)

I'm trying to make my first web scraper and keep getting errors for https URLs but not http. I am running Python 2.7.9 on RPi2 with Raspbian Jessie. I am also SSHing into the Pi on my laptop. All of ...
5
votes
6answers
8k views

SSH connection refused even though ssh file is in /boot

My image: 2017-08-16-raspbian-stretch-lite from here My Raspberry Pi: Raspberry Pi Zero W My computer: Linux (Fedora 26) What I did I followed the official instructions on how to flash the img to a ...
1
vote
1answer
775 views

Help with connecting NPN proximity sensor to rpi3

I have an NPN LJ12A3-4-Z/BX proximity sensor that I want to use to detect water usage on a water meter that has a rotating iron disk. To make sure I don't overpower the 3.3v GPIO inputs I want to use ...
1
vote
2answers
51 views

Raspberry - same address in every location

I have an RPI2 what I want to use as a "developer platform" with git and mysql server. I using dyndns for remote access, but! when I home I can access it from 192.168.1.125 and when I'm remote I can ...
0
votes
3answers
522 views

Wireless raspberry pi 3

I'm able to connect raspberry pi 3(running kali linux) to a phone via its mobile Hotspot using ssh. But each time I first have to plug the pi to a screen to start it up. I want to know a method with ...
-1
votes
2answers
321 views

Can I connect to my Raspberry Pi 3 with neither an internet connection nor Ethernet cable?

I am trying to learn how to connect to my Raspberry pi 3 to my laptop without internet or a router. I know some have suggested that I use an Ethernet cable, but my computer (Windows 10) does not have ...
0
votes
1answer
43 views

Cannot find/connect to RPI from desktop, but CAN from phone

I'm running OctoPrint (3D printing software) from my rpi3. I just changed apartments, connected to the wifi via my config file, and it works great BUT I can only connect via my phone. My desktop (...
1
vote
0answers
3k views

Reset network configuration and set WiFi Static IP

I follow this tutorial to be able to setup static IP address on WiFi connection, in particular, after change /etc/network/interfaces file I do this two commands sudo systemctl disable dhcpcd sudo ...
1
vote
2answers
4k views

Can't connect through PuTTY

I'm going crazy trying to connect to my Pi through PuTTY. I know I have SSH enabled, I checked the ports, used ifconfig and put in every single IP address I saw in there, used hostname -I, and they ...
0
votes
3answers
3k views

Raspberry pi 3 connect to wi fi but can't connect to internet

I use "Raspbian jessie" on my raspberry, and I have configure it to connect to my wi-fi, but the strange thing is when I try to send data with Mqtt, I have this error : MqttException (0) - java.net....
1
vote
1answer
74 views

Connecting jumper wires through door [closed]

I'm building a setup to measure the occupied surface of a trailer. In order to do this, I want to place several ultrasonic sensors (HC-SR04) on the swing doors. The setup is shown below, with the ...
0
votes
0answers
568 views

How to connect Pi 3 to computer screen or TV?

I am new to using Pi and know little about programming and hacking. I have been having issues with connecting my Pi 3 to a moniter or a screen of some sort, I also cant ping it. I put in ping ...
0
votes
1answer
7k views

Raspberry Pi 3 No wireless interfaces found

I have Raspberry Pi 3 and I tried to config for auto connect to wifi like this example http://weworkweplay.com/play/automatically-connect-a-raspberry-pi-to-a-wifi-network/ but when I finish, I got "...
1
vote
1answer
533 views

Pi appears as offline according to Xfinity router even though it IS connected

I'm SSH-ing into a Pi right now, so it is definitely connected to the network. It is connected via Ethernet. The Pi is running default Raspbian. Other Wi-Fi and Ethernet devices that are connected ...
0
votes
1answer
799 views

Cannot connect to network or internet when using PiVPN (OpenVPN)

I've been trying to set up my Raspberry Pi3 with a VPN on a Jessie Lite image. I've been successful with using the PiVPN installer to create a stable server, and client generator (OpenVPN based). My ...
1
vote
1answer
2k views

How to connect pi zero w to the internet?

I recently got a zero W. The main reason I got it was so that I wouldn't need to drastically increase the size of my projects by adding a wifi and bluetooth module. However, on a clean install of ...
2
votes
1answer
145 views

Pi 3 loses network connection

I'm having a strange problem. Every few days my Pi loses the connection to my WiFi and only after I disconnect and connect the Pi to the power supply does the connection come back. I saw in the /var/...
-1
votes
1answer
416 views

Cannot connect Raspberry Pi 3 Model B to MATLAB R2015b using MATLAB Rasp Pi support package.

When I use the code: mypi = raspi('192.168.0.12','pi','raspberry') It shows this error: Error using raspi (line 169) Cannot establish a TCP/IP connection to the board with device address "192....
-2
votes
1answer
83 views

Old RC car too new [closed]

I have a old RC car/truck with a good battery. It's starting is 2 dc motors on the back wheels (Skid steering?). Am I able to use a Raspberry Pi, USB web cam and a USB wifi card to make a RC car that ...
0
votes
1answer
617 views

Putty automatic connection script

I created a script to connect automatically to my Raspberry using putty : start /D "C:\Program Files\PuTTY\" putty.exe -ssh 192.168.1.104 -l pi -pw mypassword But it doesn't load properly, it does ...
-1
votes
2answers
181 views

How can I connect 5 Raspberry Ppi's? [closed]

Can I connect 5 raspberry pi's with one another? If yes how? Can I use gpio's to connect or are there any other ways? I have a task where I need to connect raspberry pi and make them communicate ...
3
votes
1answer
8k views

Can Raspberry Pi 3 connect to multiple bluetooth devices?

I plan to make a RetroPie gaming station using 8BitDo bluetooth controllers, and I need to know if i need to spend extra money on bluetooth adapters to support multiple connections for multiple ...
2
votes
1answer
150 views

Raspberry Pi 3b not connecting to WIFI [closed]

Been through all the forums and having no luck. I have tried the following: *Channel - using 6 and all 13 showing available *WiFI source - tried changing router to non UK, but not possible, changed Pi ...
2
votes
1answer
372 views

Force eth0.0 route to eth0?

If I have PiA and PiB, its fairly simple to make PiA a gateway for PiB by setting the 'static routers=PiA' on PiB in /etc/dhcpcd.conf But what if I want/need to set up two IP addresses on a Pi and ...
-1
votes
1answer
2k views

How to send notifications from android to RPi? [closed]

I have a project in my college, In that i need to push arrived notifications from android phone to RPi and i want to display those in the raspberry pi screen. How can i do that please somebody help.......
0
votes
1answer
157 views

Chromium broswer doesnt open google and says its untrusted

Hello I need to install an extension for chromium for my project on raspberry pi but chromium says that the google extensions and pretty much any google sites are untrusted I tried reinstalling ...
6
votes
2answers
222 views

Strange wifi behavior using raspberry pi zero as portable AP

I have a raspberry pi Zero with a 4 port USB hub attached to it (via pins on the back). The WiFi dongles that I'm using are twin Edimax EW-7811UN models. What I'm trying to use it for is Internet ...
0
votes
0answers
176 views

Unable to connect to headless rpi; rpi won't stay connected to router

I got a raspberrypi 3 setup with Jessie (2017-01-11-raspbian-jessie.img), and everything working great with it. It was connected to the router via ethernet, and I could connect either on my local ...
0
votes
2answers
209 views

Raspberry pi and rs232

I am working on a small project for work. I am trying to figure out if you can connect 3-4 RS232 to USB ports to the raspberry pi. I would like to gather information from a digital micrometer and a ...
1
vote
0answers
927 views

Configure RPi OpenVPN ip tables problem

I am attempting to set up my RPi to work as a VPN server. I used these 2 tutorials: http://www.bbc.com/news/technology-33548728 and https://www.raspberrypi.org/forums/viewtopic.php?t=81657 When I go ...
3
votes
1answer
783 views

Connect Xbox One Controller to Raspberry Pi

I know this has been solved (generally) for RetroPie, but I'm hoping to have a generic solution I can use for other purposes--like controlling robotics. And RetroPie dominates the conversation. Is ...
0
votes
4answers
5k views

Pi3 SSH connection closed

I have new RPi3 everything seems to work fine except the fact that I can not connect to it via ssh (from my laptop with Ubuntu 16.04). I have enabled the ssh on raspberry pi and I can establish the ...
1
vote
0answers
185 views

How to connect RPi 2B with SM900?

I have a Raspberry Pi 2B and a SM900 module and I want to make a UART connect with jumpers using raspberry GPIO and the shield pins. My problem is how could I make it? How to power up the SM900? I ...
-1
votes
2answers
651 views

Internet connection impossible through PC via Ethernet

I have a Raspi 2B running Raspbian and I want to connect it to the Internet with an Ethernet cable via my laptop (which is connected with WiFi to my router). Unfortunately, I am officially connected ...
-1
votes
2answers
152 views

Controlling a geographically mobile Pi 3 (using iPhone 6S)

I've had a look around and I can't find anyone with a similar setup to what I'm looking for, maybe someone here can help? I want a Pi3 that I can carry with me and control from my phone (terminal ...
2
votes
1answer
1k views

Connecting Raspberry Pi to a photo frame

I'm trying to use a photo frame as a LCD monitor to a Raspberry Pi 2. The logic board in the photo frame connects to the LCD with a AWM 80c 60v 20624 VW-1 ribbon cable. Is there any way I could ...