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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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Trouble Connecting Bluetooth Keyboard After updating and upgrading Raspbian

I recently updated and upgraded my raspberry pi 3 b+, and now my Logitech keyboard K480 will not connect. It was working fine until this happened. I'm looking for any tips to see what I'm doing wrong/...
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1answer
28 views

p2p - Send data from Windows Computer to RPI [on hold]

I want to be able to send a small amount of data quickly directly from a windows machine to a Raspberry Pi 3 B+. My restrictions include: Preferably not having any sort of wired connection between ...
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21 views

Raspberry pi randomly disconnects my wlan0 but keeps working through eth0 and even wlan1

I have a raspberry pi 3 which will randomly disconnect from my wifi network. If I do ifconfig I can see that wlan0 has no IP address anymore. However, eth0 still has and my wifi dongle in wlan1 also ...
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14 views

Scan search USB port and manipulate the data received from wireless modem

Any example which helps me to search the automatic USB port availability in raspberry pi and sends the information of wireless sensor network, which uses the wireless modem as a gateway receiver. I ...
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2answers
33 views

Raspberry Pi batman-adv ad-hoc network setup unreliability

Problem: I am trying to configure batman-adv network on raspberry pi 3b+ following this, using on-board wlan0 interface coming with raspberry pi 3b+. Once the network is executed by following all ...
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19 views

What could trigger the removal of the WiFi device?

I discovered this morning that wlan0 on my RPi vanished during the night (at 04:14:13 in the unaltered log below): Dec 18 03:38:46 rpi1 wpa_supplicant[407]: wlan0: WPA: Group rekeying completed with ...
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1answer
64 views

Controlling Raspberry pi3 Wirelessly with HTML (Lighttpd)

I've been working on a Obstacle avoidance robot using Ultrasonic and IR sensors. The scope of my project is to execute my program over the air. Control the robot's movement using mouse or touch ...
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1answer
54 views

nmcli not detecting any network on R Pi 3 (controlled via SSH Ethernet)

SETUP: I plugged my laptop (Ubuntu 14) to my RPi 3 (Raspbian Stretch) via ssh over an Ethernet cable. PROBLEM: Doing nmcli dev wifi on the laptop gives me a whole bunch of networks. Typing the same ...
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1answer
69 views

hostapd 802.11n/ac bandwith [closed]

Some 802.11* standards support multiple bandwiths (20MHz-40MHz-...) and accordingly higher bandwith (in Mb/second)... with this hostapd configuration file, its not entirely clear if we can manually ...
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1answer
45 views

Two raspberry pi with wifi communication and pc with wifi or ethernet network

I want to setup a network between two raspberry Pi and a pc. The Pi's should use Wi-Fi to communicate with each other, and for the pc it doesn't matter if it's with an ethernet cable or over Wi-Fi. I ...
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24 views

How can I use a Raspberry Pi to verify a phone/tablet without contact?

Let's say I have a phone and the Raspberry Pi is 'expecting' it. How can I confirm the phone is a verified device? The easier it is for the phone owner the better. I have come up with a few ...
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1answer
105 views

Make wifi onboard as an access point and wifi dongle as a client

I want to turn my raspberry pi 3 witch installed Raspbian OS to access point and client to access wifi and bridge these two each other (in this question it's better to skip this bridge part). Exactly, ...
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70 views

OVS + Hostapd Raspberry pi setup

My experimental aim is to create OVS+Hostapd on raspberrypi 3B Module connected to PC as sdn controller. initial ovs configuration is ovs-vsctl add-br0 br0 ovs-vsctl add-port br0 eth0 Setting up ...
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1answer
29 views

Remove device history wireless hotspot

I have been using Raspberry pi 3B as a wireless hotspot following this How to use your Raspberry Pi as a wireless access point. I think there is a limit to a number of devices that can be connected to ...
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80 views

Internet connection repeater or bridge

What I'm working with Raspberry Pi Model B+ Soc BCM2835 Speed 700Mhz 512MB 2usb Wifi no. Ethernet yes My question is. How do I turn my Rpi into a wifi whatever it is called done. I'll explain more ...
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33 views

After purging libssl1.0.2 - can not connect to Raspberry

I am doing a tutorial from edx.org to learn to use Raspberry PI and to be able to send messages back and forth to the Azure IoT hub. While trying to send the messages to the hub I ran into multiple ...
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1answer
446 views

WiFi Mesh Network Setup

I've been trying to setup a wifi mesh network, with no success. I've tried: straight 802.11s - Didn't work at all cjdns (Tomesh) - formed a mesh network, but unreliable, slow data rates batman-adv - ...
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2answers
175 views

Small wireless temperature sensor recommendation [closed]

I am working on a human-care project using RPi. The second phase of project is in progress, and I need small wireless temperature sensor to be able to place on a human body. I've searched the internet,...
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101 views

RFM69 Radio Transceiver: Arduino is not registering acknowledgement for transmission sent by Raspberry Pi

I am building a system in which an Arduino Uno with an RFM69 radio chip transmits data to a Raspberry Pi running a script in Python. I am using the RFM69 library for both scripts: Arduino: https:/...
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17 views

Wireless & wired connections disabled

This is my first day using RPi. I have a RPi 3 model B. I was trying to change my RPi's IP address and subnet mask. While doing that I deleted my interfaces.swp swap file and rebooted my board. After ...
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2answers
117 views

Independent Eth and Wlan both with DHCP giving access to Pi without bridging

I have Motion running on my Pi. I want to be able to access the Motion interface/feed (hosted on <pi ip>:8081) to be accessible both via WiFi and via Ethernet with a static address and DHCP for ...
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1answer
3k views

Raspberry Pi Zero W as a WiFi repeater

I'm currently trying to setup my Raspberry Pi Zero W as a WiFi repeater, but the kicker is that I don't want to use another USB WiFi card. First of all, is this even possible, and if it is, what ...
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223 views

Wireless communication without internet

I am trying to make a project which consists of ultrasonic sensors connected to two Pis that would communicate wirelessly (without internet connection) to a third Pi that uses the inputs to control ...
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1answer
293 views

Internet Speed in Pi Zero W

Internet speed on raspberry pi zero W is too slow. I've measured the speed in same way on my computer with same IP but the result is incredibly different. Test on raspberry, pi@raspberrypi:~ $ ...
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90 views

raspberry pi zero add external ble module sx1280?

i m trying for raspberry pi zero with external ble module SX1280 for adding extra range of signals.i can communicate with SPI connection on pi with module.how do i disable internal bluetooth and also ...
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1answer
103 views

Sending data to and from raspberry pi 3 wirelessly using wifi / sim network data

I'm looking for advice regarding sending and receiving data between raspberri pi 3 and other devices assuming everything has internet connection. The data I'm looking to send doesn't have to be ...
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158 views

hostapd is adding a route and default gw on wlan interface

I'm having a race condition where I'm starting hostapd before I'm able to set up my internet connection (through a GSM USB dongle). If this happens, hostapd is adding a route and default GW to the ...
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12 views

Power draw over various states of wifi/bt connectivity

Can someone measure power draw of a pi with integrated wireless over different states of connectivity such as scanning, connected, disconnected, in-use, disabled, etc, for Bluetooth LE and WIFI each? ...
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131 views

Wireless Gyro/Accelerometer Sensors for Raspberry Pi

Is there a way to have a wireless gyro/accelerometer sensor connected to Raspberry Pi? Have worked with single MPU-6050 in the past. Was wondering if there was a way to have a wireless sensor instead....
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1answer
211 views

Crash on radio.begin() (for NRF24 Module )

I have connected my NRF24 module as described at bottom of this webpage. I cloned that repository and have Build using SPIDEV (I have ensured SPI was enabled and double checked that SPI module works, ...
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1answer
94 views

How to Send Data From Pulse Sensor Wirelessly to GPIO Pins?

I am following this tutorial: https://tutorials-raspberrypi.com/raspberry-pi-heartbeat-pulse-measuring/. But I would like to implement the sensor in a watch. Is there an accessory that can fit in my ...
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1answer
395 views

Connection to a Wi-Fi network without password

I'm currently working on my Raspberry Pi, running Raspbian, trying to connect to a network without password using iwconfig. ifconfig wlan0 results : ifconfig wlan0 wlan0 Link encap:Ethernet ...
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Trouble autoconnecting to wireless network after automounting USB drive

I'm having issues SSHing into a headless Raspberry Pi over the wireless network. I set up the fresh install properly with /boot/ssh and wpa_supplicant.conf, and I even modified etc/network/interface ...
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1answer
665 views

why is raspberry pi no wireless interfaces found. no wireless extension

no wireless interfaces found. If I connect through ethernet cable, it works. any idea how to solve it?
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1answer
4k views

How do I enable SSH on raspbian stretch (2018-04-18) by default on boot without a monitor

Background: I setup my wireless without a screen by mounting my distribution image(2018-04-18-raspbian-stretch-lite.img) according to the instructions on these links. mounting distribution image ...
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1answer
89 views

How to prevent raspberry to connect with open wifi?

Actually i am working on a project. I want my raspberry to stay connected with my DSL wifi. But raspberry connect with a open wifi automatically . Thats why i lose connection. Please help me that how ...
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1answer
40 views

Using usb wifi and onboard wifi simultaneously to connect to internet

I have a raspberry at a very remote site where the wifi range is not that great. I am using a USB wifi with the antenna to connect to the wifi. Should I disable the onboard wifi in this case as I am ...
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391 views

Setting up RPi3 access point, hostapd error: Failed to set channel

I'm running Raspbian 9 (strech) on a Pi-3 modem B ver 2. Following guides found online, I have had it working with hostapd as an access point once. But after reboot that stopped working. In the ...
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23 views

Barcode and Ardunino IR receiver

We are using our barcode scanner as basically a keyboard. Therefore when it scans the barcodes it just prints the numbers associated with that barcode. With that, we are now trying to make our barcode ...
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1answer
71 views

What resistors and capacity do I need for TSOP382 IR Sensors?

I'm not sure if this is necessary but this doc tells me that I have to put some R's and C's in the circuit: TSOP382 IR Receiver Modules for Remote Control Systems (Datasheet PDF) How do I know what ...
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2answers
174 views

How to synchronize images from two raspberry pis

I have 2 Pi Zero Ws (wifi), each with a Pi camera connected to them. Both Pis/cams are running on battery power and deployed in the desert. There is no network or internet connection. The cams are ...
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1answer
401 views

Buildroot Raspberry Pi 3 - No wireless interface

I am attempting to get a working buildroot image working on my Raspberry Pi 3 but have run into an issue, I cannot set up a wifi connection. Running ifconfig -a only shows the eth0 and loopback ...
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508 views

Connect Raspberry pi3 to Samsung smart TV through wifi

I am doing a project now for my office which I want to connect a Raspberry pi 3 to Samsung smart TV through wireless. I want to to use the TV like a computer monitor wireless. Raspbian is installed &...
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1answer
1k views

New Pi 3 B+ with Octopi wireless issues

I recently got the B+ model and I'm trying to switch over my Octopi to it from my B model. Finally got the Pi up and running after dealing with the rainbow screen issue and now I find the wireless ...
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0answers
810 views

iPhone Connects to my 5GHz WiFi Access Point but not Raspberry Pi 3 B+

I just received my Raspberry Pi 3 B+ with onboard dual band WiFi. I have a 5GHz Access point that my iPhone ( and MacBook ) connects to just fine. I am using wpa_supplicant on the Pi to manually ...
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261 views

Get wireless card information in C++

I want to use the built-in wireless card in ad-hoc and promiscuous mode, which, out-of-the-box, seems possible: The file /etc/network/interfaces: # interfaces(5) file used by ifup(8) and ifdown(8) #...
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1answer
1k views

How can I display sensor data on webserver by php? [closed]

I want to display sensor data on web server. I measure sensor data by arduino and it sends sensor data to raspberry pi via bluetooth(wireless). There are codes for logging data. code of arduino #...
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1answer
128 views

Should I wirelessly connect my Pis using “ad-hoc” or “infrastructure” mode?

I now have a lamp connected to a RPi Zero W and another Raspberry Pi 3 connected to XMOS. The RPi 3 has AVS "Alexa" running on it. What I want to do is to set up voice control so that the RPi 3 can ...
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1answer
42 views

rPi3 Access Point and Ubuntu artful 17.10 [closed]

I just configured the raspbian as an AP. The Wi-Fi connection works well on windows and android, but when I try to connect from Ubuntu, it enters but does not have an internet connection: In the ...
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1answer
278 views

Using different wi-fi networks at the same time

I'm trying to use 2 WiFi networks at the same time on one Raspberry Pi 3. I have configured the interfaces file and wpa_supplicant.conf for both networks, and I am using the built-in WiFi and a WiFi ...