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Questions tagged [connection]

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

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16 views

Connection via Ethernet to Windows

I'm having an issue with creating a direct connection with RPi 3 B+ and Windows laptop (to use as interface with RPi for first time set-up). I formatted the microSD card to FAT32 (Master Boot Record) ...
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1answer
22 views

Problem with auto pair a Bluetooth device

https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/test/simple-agent I tried the Above Python script but getting a dialogue box 'Pairing Requested'. How to remove that dialogue box?
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1answer
23 views

Raspberry Pi and localhost Connection

So I'm currently doing a project using Beacon and Raspberry Pi. The raspberry pi collect the UUID and RSSI of the Beacon and send it using socket.io to the server ( localhost-my computer) to save it ...
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1answer
28 views

Connect raspberry pi to an iphone app without port forwarding

For our capstone project, we have a python code that is supposed to detect the presence of a tile beacon, then we want that program to communicate with an iphone app built with swift letting it know ...
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1answer
32 views

Raspberry PI Laptop Ethernet Connectivity Issue

I setup my headless Raspberry PI and called it Optimus. I connect my Windows 10 desktop machine to the Raspberry PI via an ethernet cable. If I ping optimus.local I get a response and can SSH into it -...
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2answers
96 views

How can I stay connected wirelessly online but also set the ethernet to a set ip address to connect to a piece of hardware

I am currently working on Raspberry Pi 3B+ (Stretch 9) and I have been stumped on how to be connected online wirelessly while also having my LAN port configured to receive and send data via a ...
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1answer
27 views

raspberry pi zero w TWO wi-fi connections 1)dhcp 2)static

hello I need that my Pi automatically connect to wi-fi's 1) At home (by dhcp)-easy 2) at work (static IP DNS router)-don't know how it's extrimle easy to do that on armbian by configs /etc/...
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0answers
23 views

Using Raspi to spoof a site

I'm trying to make my RasPi to spoof sourceforge.net (referred to in the rest of this question as sf.net), because my phone has an app that connects to sf.net to download additional files, but fails ...
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1answer
24 views

How to connect two raspberry pi zero w's to ond HDMI display

Has anyone successfully connected two raspberry pi zero w's together to one HDM1 touch display (7" for example)? Any tutorials available for this?
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0answers
25 views

Connecting Computer without Internet to raspberry with Ethernet and send Information via MQTT

I'm trying to connect a Pc without internet with a Ethernet Cable to my Raspberry and want to send informations from the Computer to the Raspberry via MQTT. I searched trough the internet but ...
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1answer
37 views

Wiring on RPI3 when connecting two peripherals - microcontrollers simultaneously

I am currently having an ADC(MCP3008) connected to a rpi3, using the following wiring map, in order to read data from analog sensors. MCP3008 -> RPI3 VDD -> 3.3V VREF -> 3.3V ...
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2answers
44 views

Is this Solenoid Connection Correct?

I'm new to this Raspberry Pi. I'm trying to build this project: https://www.hackster.io/hitherejoe/braillebox-braille-news-reader-e86060 But the circuit diagram in it: https://hackster.imgix.net/...
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0answers
141 views

connmanctl having problem with complex passphrase

The built in WiFi module seems to work fine, as it can connect to both of my open networks I created for testing, i.e. the 2.4GHz, and the 5.0GHz ones. If I set a simple passphrase (i.e. contains ...
5
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2answers
185 views

How can I replace Raspian SSH host keys if I can't login to pi? (“connection refused”)

After configuring a new Raspberry Pi Zero W, I have not been able to ssh into it over WiFi. The IP address is assigned and pingable, but I get 'connection refused' errors. After some research, I ...
2
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0answers
59 views

How to connect CMOS image Sensor to Raspberry Pi

I'm wondering if it would be possible to take an image sensor out of an old camera and plug it in to a raspberry pi via the csi connector. For Example would it be possible to take one like this from ...
2
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1answer
45 views

Raspberry Pi: Unable to access or ping after reconnecting any device to the local network

I have a raspberry pi that is connected to the network with DHCP. When I start it, I can ping it and connect to ssh through wifi. The issue is when I diconnect the device that I am using (my pc/...
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2answers
59 views

Programmatically SSH into pi on local network without looking up IP-Address beforehand?

I have a pi in my local network, and I sometimes want to connect to it via ssh. However, the pi always has a different IP-address, so I look it up beforehand each and every time. Is there a way for me ...
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1answer
1k views

Wifi Not Working with Ubuntu MATE 16.04 and Pi 3b+

I was able to get Ubuntu MATE to finally run on my Pi 3B+ after following this tutorial: https://www.youtube.com/watch?v=tdJrd75_068&lc=z234tvgocvmqyzb5a04t1aokgml1ll00iwv1gbnt2da0rk0h00410....
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3answers
801 views

Connecting to RPi from Linux with the ethernet cable without touching RPi

I have a Raspberry Pi 3 that runs on Raspbian and has SSH enabled. However, I don't have any monitor to connect it to (to set up WiFi connection), so my only chance to communicate with it is a basic ...
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2answers
69 views

How to change the wifi setting if not able to connect to device

I forgot what was wifi setting of my respberry -3. I want to connect that, but my device is not connecting to the wifi. Is there any way I can change the wifi setting of my device. I am able to mount ...
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1answer
38 views

Can't connect via SSH to RPi2

I have searched for old topics but I can't find anything that could solve my issue. I have installed Ubuntu MATE on SD card and created the ssh file on the boot\ directory. I connect the RPi2 ...
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0answers
156 views

Connect RunCam to raspberry pi

Just recently I got RunCam micro swift 3 (https://www.runcam.com/download/MicroSwift3-Manual.pdf) for computer vision project. However, I am struggling to understand how can I connect it to Raspberry ...
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0answers
111 views

Error connecting to Raspberry Pi 2 using xrdp

I have Fedora 28 MATE installed on a Raspberry Pi 2. I have xrdp installed and started/enabled on the pi, and have opened port 3389/tcp in the default firewalld zone. I am trying to connect to the ...
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1answer
33 views

Control Motor via Raspberry Pi connected to a Laptop (running code via PyCham)

currently working on a project with detecting objects via a Camera Module and controlling motors based on the camera detection (if object is in sector A, move motor B down, etc.) using Python. The ...
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2answers
77 views

Device discovery without wifi [closed]

In systems like Alexa or Sonos, the mobile app asks for location access and from there it tries to find the device. After that one is prompted to enter the wifi details and attach the device with the ...
2
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1answer
26 views

Raspberry Pi ZeroW - i can't acces from mobile (android)

I configured apache2 + php7 on Rpi Zero W, and I can access to the webserver using my PC by enter ip address of Rpi - but if I try to do that from mobile it fails... Raspberry and phones are ...
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1answer
26 views

At what instances do we use the Board mode and BCN mode in Raspberry Pi?

I know about the two modes of working in Pi using python, Board and BCN. However, I am really confused as to the instances or situations where I should use them. An example demonstrating their use ...
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2answers
260 views

Off grid communication

Over the last couple of weeks, I’ve become interested in off-grid communication, and I am currently looking into creating a simple communication protocol wherein multiple raspberry pi’s are able to ...
1
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1answer
58 views

Raspberry Pi controlled remotely by LAN but using alternate internet connection

My Windows laptop connects wirelessly to a LAN (with internet). My Raspberry Pi 3 B+ is wired to the same LAN. I can control the Pi from the Windows laptop using AnyDesk (remote desktop software). ...
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0answers
48 views

Pi Does not respond to SSH and ping wireless commands

Rasp. Pi Model B: Does not respond to SSH and ping commands via router. Always have to reboot physically by unplugging power cord USB and plugging it back. Any suggestions on how it can reboot locally ...
2
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1answer
3k views

Clients cannot connect to pivpn server anymore

I have been using and enjoying pivpn for nearly a year now. I am running pivpn and Pi-hole on the same RasPi without issues until now. Recently I have not changed anything besides the occasional apt ...
2
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1answer
310 views

Raspberry pi not detected using direct Ethernet connection

I am unable to use a IP scanner to find my raspberry pi when directly connected using Ethernet. (it worked like 1 month ago) If i connect my rpi into my router and which is then connected to my pc ...
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1answer
102 views

Setting up the Raspberry Pi for the second time and WiFi detection issues

I am a beginner. When I bought my Raspberry Pi 3B a week ago, I was told that they had already applied a set-up. I didn't know what it meant and I followed a tutorial to set-up the Pi for the second ...
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1answer
395 views

How to SSH Raspberry Pi from outside local network

I know this question has been asked many times but I could not get it running so I decided to ask it here. I have a Raspberry PI running on my local network which I can easily SSH it through my ...
2
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1answer
2k views

Connection to MySQL database does not work

I have two Raspbery PI 3 which I have installed (almost) identical. The configuration of /etc/mysql/mariadb.conf.d/50-server.cnf is identical for both Raspberrys. Problem: I can only connect to the ...
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2answers
831 views

wpa_supplicant connects to wifi but gets no ip

we are facing a weird issue. Basically, wpa_supplicant tries to connect to wifi network, and apparently succeeds, but it can get no IP address. We are using a Raspberry Pi Zero W to generate an ...
4
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1answer
508 views

Not able to connect using Windows Remote Desktop Connection

I'm trying to connect pi using Remote Desktop Connection in windows via Ethernet. But it's not detecting. Also in network connection center ethernet is connected but showing as unidentified network. ...
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1answer
74 views

Using Raspberry pi as I/O Board over the Network [closed]

I was trying to set up Jasper on my Raspberry Pi. While the programm was running fine I wasn't quite pleased with the performance. So i was thinking to run Jasper on a more powerfull machine and the ...
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2answers
134 views

Raspberry Pi: Automatic wifi connect without entering SSID, password

I am working on a project in which the Raspberry Pi kit will be shipped to the customer site. However, I am stuck at the question how to get the kit online, so that it can communicate with the ...
0
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2answers
105 views

To what pins should I connect 4 digits 7 segments display? [closed]

My display model is: 5641BH with common anode. It have 12 pins. 0.56" THT. Power range: 5 - 10mA (max 20mA) I have Raspberry Pi 3 model B. + T-Cobbler Plus. How the hell connect this thing.. In ...
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0answers
91 views

RasPi not reachable from Android phone

I've been strugling with this problem for quite some time now, and i'm at my wit's end. I don't even have any idea what i could try to be looking for. I have a raspi running with raspbian lite and ...
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0answers
626 views

OBD II Bluetooth Connection

I'm trying to connect an OBD II(ELM327) bluetooth adapter to my Raspberry Pi 3 for one of my projects but it keeps failing everytime I try it. I have the Raspbian updated software. I made a C ...
0
votes
1answer
315 views

Raspberry Pi3 Jessie will not reconnect after ethernet cable re-plugged

My Pi3 running Jessie loses connectivity after unplugging and plugging back the ethernet cable. It's literally driving me crazy. Hope you could shed some light here. Wifi is disabled in /boot/config ...
2
votes
1answer
4k views

Using /dev/rfcomm0 in raspberry pi

I have paired two android phones to the Raspberry Pi 3. However when I attempt to execute a file it gives me the error: [Errno 2] could not open port /dev/rfcomm0: [Errno 2] No such file or directory:...
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1answer
344 views

Bluetoothctl connect TIMEOUT exception

This is the error I am getting when I connect to my mobile phone using the connect method in this documentation: https://gist.github.com/egorf/66d88056a9d703928f93, raise TIMEOUT(msg) pexpect....
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1answer
2k views

Enable Ethernet tethering with LibreELEC

I have my Raspberry Pi 3 connected to my WLAN with the on-board chip. Now I want to connect my TV's Ethernet cable (it does not have WiFi) to the RPi3 to connect to the Internet from my TV (Ethernet ...
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2answers
40 views

When connecting the sense hat using jumping wires, do I need to connect to a ground pin?

I want to connect the sense hat to a raspberry using jumping wires. I understand that I need to connect the highlighted pins in this schema of the pin out. But do I also need to connect wires to a ...
0
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1answer
2k 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
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1answer
43 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
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1answer
560 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 ...