Questions tagged [wireless]

Wireless is a term used to describe anything that can, due to new technologies, function, fully or partially, without wires. Generally this is wireless network (WiFi), or wireless connection with USB devices (bluetooth), but wireless power is also starting to emerge.

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Problems using OpenSSH to remotely Access Raspberry Pi

I have a static IP setup for the raspberry pi and have no problem connecting via ssh while on the local network. I have the OpenSSH server running on the raspberry pi(pi4 model B running rasbian) and ...
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SSH over internet on pi 4(connectivity using RF modem )

Sorry if I am asking a silly question as this is all new for me also read many questions here but bot find appropriate one that ans my problem Problem: I want access pi from another network over ...
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How can I monitor LAN traffic on raspberry pi?

I am trying to build a local network consisting of around 10-25 raspberry pis, each running on a static ip address. I wonder how I can monitor the traffic in the network. To be specific is there any ...
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44 views

How to use a Pi 3B+ as a “travel router” with both USB + wireless tether for multiple iOS or Android devices?

I have a Raspberry Pi 3B+ unit that I'd like to use as a "travel router" to attach multiple networks to the Internet via any one of a few different tetherable phones a la the following diagram via ...
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How to use an IR Transmitter to control Hi-Fi speaker

I have this old Hi-Fi speaker system (Philips DC146) that I'm using with my RPi to stream my music with airplay from my phone and I've set up this motor to switch it on/off because it makes some noise ...
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61 views

Raspberry Pi 4 doesn't show a wireless interface - what drivers are required?

I have a raspberry pi 4 running Raspbian Buster. I'll be the first to admit this particular instalation is non-standard. It's been upgraded a version or two and was definitely active on my pi-3 if ...
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Wireless issue in Raspi Pi Octoprint

Why does my raspberry pi desktop wireless icon indicate "No wireless interfaces found". And then another window opens and it says "eth0:configured 192.168.1.102/24 wlan0 not associated"
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56 views

NAT from wlan0 to eth0

I have several industrial machines. Each machine is an isolated network, 10.10.0.0/8, with three elements: A Raspberry Pi, a PLC, and an HMI. The IP addresses of the three components are static and ...
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How to send sensor and analog data wirelessly to Pi without internet

I'm fairly new to all things RPi so im still trying to get my bearings. I want to control a robot from a distance, about a Mile approx. I have build the robot and i have no problem controlling it ...
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43 views

Creating a network extender

Today I was hoping to setup a network extender. I want it to connect to my router via ethernet, and then share out that connection via WiFi, and stay on the same network. All of the tutorials I looked ...
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Raspberry Pi 4G

I have a robot (using the Raspberry Pi 3) outside my home with no internet connection, and I want to remotely access like this my Raspberry Pi's desktop. How can I do this? Perhaps if I get this ...
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Tor Router Raspberry pi 4 Access-Point no internet connection [closed]

I am trying to create a Tor Router with a Raspberry Pi 4, the newest raspbian version, the inbuild Wlan0-Card for the Access-Point and a external Edimax Usb Wlan1-Card to get a internet connection. I ...
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RPi Wireless LoRa Signal Synchronization

I have a RPI3B that I'm using with pigpio to create a waveform to transmit a square wave signal at ~200Hz over a wired connection. For each transmitter signal pulse, a GPIO pin then sends a signal at ...
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1answer
66 views

How can Rpi communicate with Arduino in RF (Radio Frequency)?

I need to transmit and receive data between Rpi and Arduino, in RF (Radio Frequency). I must say I have next to zero experience in this field. So any help, papers, documentation, book or manual would ...
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190 views

Did anyone get a Miracast display working with a Pi 4?

I have tried using miraclecast, which builds without problems but won't find a Miracast screen which my Windows 10 laptop has no trouble to work with. pi@raspberrypi:~ $ sudo service wpa_supplicant ...
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1answer
437 views

hostapd problems while setting up Pi 4 as Access Point

First of all i want to say that i'm new to all of this, so please dont hate me if the answer to my problem seemed obvious to you. I just tried to follow this tutorial to set up my Pi 4 as an Access ...
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1answer
134 views

captive portal with apache on a raspberry pi

I'm trying to make a captive portal with apache as a server and a raspberry pi on AP mode. I have some trouble trying to make the captive portal splash, I tried all tutorials on the internet and I can'...
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Control SPI Wirelessly

I would like to control a WaveShare e-Ink display wirelessly. I have lots of experience working with this type of device over SPI using the GPIO boards and the WaveShare python libraries. I'd like to ...
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Pi4 WiFi connection interuptions (Ubuntu 19.10 image)

I use RPI4 and Ubuntu 19.10 64bit image. The WiFi (I use the built-in) stops from time to time with those errors: Feb 08 15:21:58 ubuntu kernel: kworker/u8:2: page allocation failure: order:0, mode:...
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Default network/interface

After trying to set up a static IP address and doing something (I'm not sure what went wrong) not quite right, I'm left with a broken network/ interface. I'd like to reset it to its default state (...
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Pi wireless access point requires service networking restart before devices can connect

Firstly, I am completely new to Raspberry Pi and Linux so I apologize that I may need spoon-feeding. I've installed Raspian Buster on my SD card and got the Raspberry Pi 4 booted up. My plan was to ...
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Raspberry Pi wireless internet won't work

So, I recently had to reconfigure my wireless network because it wouldn't connect on Raspbian for the life of me, although it could connect on noobs. I reconfigured it and such however whenever I try ...
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Raspberry pi 3 B with Buster can't be pinged, wlan0 stuck in DORMANT

I'm trying to use the built-in wifi on my pi. I upgraded the OS on my Raspberry pi 3 B from Jessie to Buster. Since the upgrade, I haven't been able to ping my pi. I noticed that ip link showed wlan0 ...
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60 views

How can I control a Raspberry Pi over Bluetooth with an Android Smartphone?

I am looking for ways fo control a RPI with Kali Linux over Bluetooth. I would like to be able to turn on the RPI and connect to it via Bluetooth without using a screen, a keyboard and a mouse. I ...
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Is it possible to access an Android Phone's volume permission and control it with RaspberryPi?

I want to have a wireless network using RaspberryPi where it connects with an Android phone, accesses its volume permission and turns it down. Any inputs on how to go about this?
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265 views

Maximum Raspberry Pi 4 WiFi hotspot clients

I have configured Raspberry Pi 4 as a WiFi hotspot with hostapd on Raspbian Buster. I connected 10 clients, no problem. I want to use it as a Free WiFi. So, I concern to know how many clients could be ...
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151 views

wpa_supplicant: sync channels between two wireless (virtual) interfaces

I'm working with a raspberry pi zero w with a stripped down distro - NARD, and I would like to use two virtual wireless interfaces, one running in AP mode (service network) and the other connecting to ...
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177 views

Port forwarding issue. How do I troubleshoot?

I have a Pi, running Raspbian 10 Buster. I would like to portforward VNC and transmission. I have opened the ports in my router, firewall. The ports are still "closed". I was trying to see why is ...
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1answer
171 views

Raspberry Pi 4 Wifi disconnected after change screen resolution

I'm having some problems with Raspberry Pi 4... The wifi works normally when I use 1920 x 1080. But when I change the resolution from 1920 x 1080 to 1280 x 720, the wifi suddenly disconnected and ...
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1answer
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2 Wifi cards with 2 different jobs

I have an RPI 3B+ and a wifi dongle that can support monitor mode. I look for ways on google on how to use the internal card to connect to ssh and the wifi dongle to use it for monitor mode using the ...
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67 views

How to configure raspberry pi as wireless router and web server at the same time?

I configured my raspberry pi as a wireless access point with a bridge between eth0 and wlan using this tutorial but now I can't access it. I'm not quite good with networking, but I think it doesn't ...
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(Wiring) RPi 4B laptop keyboard

NOTE: Not that I've chosen a few wired keyboards, I'll accept an answer that explains HOW to (easily) wire a keybard to the pi - it cannot obstruct the use of a small fan powered by the GPIO. I'm ...
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How to toggle wifi based on Ethernet connection?

I've tried a dozen different searches, but nothing has turned up exactly what I need. Here's my use case: [Minimally at boot, bonus if dynamically] If Ethernet has (or obtains) link, configure ...
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I wanna make a raspberry pi car using an RC car. I would like to know if the servo multiplexer is necessary? [closed]

I've asked this question in the Robotics Stack Exchange and I am asking here as this is kind of important and I need some answers fast. My apologies if this is rude or if it causes problems in any way....
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166 views

wpa_supplicant.conf Changes Disappear

I'm trying to setup my wireless on a raspberry pi 4 running raspbian, and I'm making changes to the wpa_supplicant.conf file per other answers here on Stack Exchange. However, after I make the ...
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No wireless interface found [duplicate]

I've just got a raspberry pi. However I cannot connect to my wifi. Here are what is in my /etc/wpa_supplicant/wpa_supplicat.conf: ctrl_interfsace=DIR=/var/run/wpa_supplicant GROUP=netdev ...
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435 views

Pi Zero W configuration to run AP + Client Mode on Raspbian Buster lite

I have a project in which I need to configure a Raspberry Pi Zero W to run both wireless AP and Client mode at the same time. I've seen the tutorials and methods others have used on Raspbian Stretch, ...
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1answer
495 views

How can Rpi4B use UART to read and analyze received data at a 3DR FPV Air Radio Module?

I am trying to set up the FPV telemetry radios (Air and Ground Module 433MHz). I have connected the Ground module to my laptop (USB) and air module to Raspberry Pi 4 UART pins. Using Mission planner ...
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342 views

My wlan0 interface is not coming up

I have a raspberry pi 3 that I was using as hostspot. Today I booted it and the wlan0 interface is gone when typing ip a When doing raspi-config and try to configure a wireless interface, I receive ...
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26 views

Raspberry Pi couldn't find wireless interfaces!

After a while I have started my raspberry pi, the wifi disconnects and when I am clicking on my Wifi icon it is saying No wireless interfaces found How am I supposed to solve this?
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218 views

Can you switch from connecting the RPi from pifi access point to an actual router access point

So for a robotics project I have in mind I'm trying to create an access point on my rpi so that I can directly ssh into it without using wifi from another router. But the problem is that I'm not sure ...
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1answer
254 views

Long range interface between a Raspberry Pi and a smartphone? [closed]

I would like to control a Raspberry Pi 4 with my smartphone (for my drone). Now I'm looking for an interface between the RPi and my Android phone. Requirements: Control with a web interface or app ...
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1answer
144 views

Wireless interface removed when DHCP lease expires

I have configured the wireless interface on my Raspberry Pi 3 as follows: allow-hotplug wlan0 iface wlan0 inet dhcp wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf wireless-power off iface default ...
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1answer
23 views

Pi stopped connecting to wifi in fedberry?

I'm using a rpi3 b+ and fedberry 27. I had connected to wifi previously, now it suddenly stopped working. In edit connections I shows that I have my wifi network as a saved connection and my password ...
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21 views

Noobs wireless detection

Im reinstalling my raspberry and once i inicialize noobs and search for networks it does not detect my home network but it detects my neighbours. Once it install the raspbian OS, the OS already ...
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271 views

Raspbian crashes when connecting to AP

Following Raspberry Pi's own tutorial for setting up an access point (https://github.com/raspberrypi/documentation/blob/master/configuration/wireless/access-point.md) from a clean Raspbian Buster ...
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103 views

USB Camera with Rasperry Pi: Sending raw data from dev/video0 to PC through tcp/udp

I want to send the raw USB data to my laptop to process it and then send it back (image processing). Is there any way I can just send the data through tcp/udp without raspi doing all the hard work?
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1answer
202 views

SSH connection hangs in Mac OS Terminal - No prompt for password

I've been SSH'ing into my Raspi 3 B+ for some time now from my Mac OS with no issues. I recently set a static IP address for my Pi on a LAN network connected via ethernet cable. I edited sudo nano /...
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24 views

Simple wireless camera with API recommendations

I have a whiteboard and want to build a setup where I can press a button and have a picture of the whiteboard delivered to google drive. I have a raspberry pi that acts as a little toy server for ...
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1answer
1k views

Automatically Create Hotspot if no Network is Available

I want to automatically create an access point, if there is no network found, so that I can connect to my Raspberry Pi everywhere. If nobody is connected to the hotspot for a while it should search ...

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