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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32 views

How to write a C++ wireless communication to control my raspberry pi over network

I have a raspberry pi and I want to convert it into a RC car which I will control through my PC. I know C++ programming and I intend to use that to write the software stack. I want to create a C++ ...
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35 views

Temperature/PH/Humidity sensors Wireless?

I am designing an irrigation system. I have already put in place the pump piece, piloted by the Raspberry through a relay. Please note that this is an outdoor system, so the less wires are there the ...
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32 views

Wireless communication between a RPI and a Android app - without internet

I got a RPI4 and I would like to communicate to it from my Android Studio made app. Specifically I would like to start a javascript with node.js on the RPI. So the RPI should be sort of an headless ...
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1answer
255 views

Connect WiFi and Ethernet simultaneously

I'm trying to connect the raspberry to the ethernet and wifi at the same time, but don't work. Raspberry infos: Model: Pi Model 3B+ V1.3 /etc/dhcpcd.conf: # A sample configuration for dhcpcd. See ...
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40 views

Working with multiple linux network interfaces [closed]

I'm running an application, where I need to use the LAN interface as a communication input with a device, using a socket server open on the IP for that interface, make the handling of this data and ...
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2answers
49 views

How to control raspberry pi (gpio and peripherals) using an app from anywhere in the world [closed]

For a school project I am undertaking, I need to send commands to a raspberry pi device wirelessly far away from the Raspberry Pi itself. The goal is to send commands which will: i) Control a motor ...
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1answer
60 views

Can we use RPi as main router which directly connect to ISP provided broadband cable to access internet?

Im beginner to RPi and networking as well so i have very basic question for start. i am trying to build a internet wifi router using RPi3 with the help of material available on internet. But i can ...
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38 views

Can I connect more than one sensors to a raspberry pi wirelessly [closed]

I am getting a raspberry pi for my birthday and decided to do a little research. While following a few tutorials I noticed that they all are using different raspberry pi machines for each project. I ...
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WiFi stops working on Raspberry Pi when SD card reader is overclocked

I'm having a very weird problem where if I overclock the SD card reader on my Pi 3B+ using dtoverlay=sdhost,overclock_50=100 the wireless stops working. Raspi-config says 'No wireless interface found'....
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83 views

How PowerOff Bluetooth on Pi4?

There's some information around disabling Bluetooth interface on boot for Raspberry Pi3 and previous, as described on this page: Disable power on Wifi and Bluetooth interfaces during boot? The same ...
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88 views

Wifi camera to capture picture at a specific time of day and upload to Google Drive [closed]

I work in a powerplant and there's a power meter that is unable to be connected on the network. I need to [1] monitor the data displayed on the power meter screen at [2] 7:00 AM, 3:00 PM, and 9:00 PM ...
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165 views

Best way to automatically reconnect to Wifi? NetworkManager? [duplicate]

I have a Raspberry Pi4 24h connected to the internet via Wifi. Sometimes, I think due some signal loss, it don't reconnect until I reboot it. I've already tried to run a script that automatically ...
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71 views

Stream data between load cell or HX711 to RPI

I built a scale with my RPI using a standard load cell and HX711, is there a way to stream the data from the load cell to the RPI either from the HX711 or from the load cell itself to the HX711? The ...
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2answers
47 views

Wireless Card - RPi4

I went ahead and used the command to check what the Wireless Card was of the RPi4, and I got the code to be VL805 by VIA Technologies, Inc. Is this wireless card compatible with airmon-ng? If not, ...
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39 views

wifi to ethernet trunk port

I have a location in a building where running an ethernet cable is just not possible. I am looking for way to get a raspberry pi to connect wirelessly to one of the AP's and convert it to ethernet. ...
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34 views

5G mini WiFi USB dongle to work with Compute module 3B+ and latest Raspbian OS

I have developed a client-server application in Raspberry Pi and used the edimax WiFi dongle to configure WiFi and access point needs. Now I want to change this Edimax mini USB dongle to a better 5G ...
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1answer
30 views

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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51 views

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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119 views

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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1answer
134 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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51 views

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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1answer
238 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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97 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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3answers
83 views

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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1answer
46 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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0answers
76 views

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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316 views

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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31 views

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
84 views

How can Rpi communicate with Arduino in RF (Radio Frequency), Say Using nRFL2401+?

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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453 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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1k 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
253 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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1answer
33 views

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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116 views

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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43 views

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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34 views

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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31 views

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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2answers
237 views

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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73 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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19 views

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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570 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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2answers
286 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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183 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
350 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
17 views

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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2answers
78 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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107 views

(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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2answers
51 views

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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50 views

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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