Questions tagged [wireless]

Using different not wired technologies as a communicational interface on a robot. Most commonly: WiFi, Bluetooth or other RF interface, also there are solutions using IR-light or even ultrasound.

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ROS2 Humble Issues Sending and Recieving messages with Wireless Communication

I am running ROS2 Humble on multiple computers across a wireless system but have been having some issues with data rates and node visibility. I haven't had any problems when testing with an Ethernet ...
Jalen Beeman's user avatar
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Does N:N connection is possible via WiFi DIRECT on Ubuntu?

I am searching for wireless connection method between robots using WIFI DIRECT in Linux. I read many articles and papers, but I couldn't find any example of 1:N and N:N connections in Linux(especially ...
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Robust Communication Network in Swarm Robotics

I'm looking into best practices to build robust wireless communication networks for a swarm of ground based mobile robots. In particular the mobile robots have cellular connectivity, but some areas ...
Rexcirus's user avatar
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Pico W does not connect to my phone's hotspot

I am trying to connect my Pico W to the hotspot that I have. The password and the name of the hotspot are in a file called "secret." I found the code online and when I try to run the code ...
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Pi Pico - HC05 AT commands don't work

I am trying to set up a Bluetooth communication between two pi pico devices using HC05s. I am trying to make the two HC05s connect and I read that you need to set up Master/Slave configurations using ...
kak_taki's user avatar
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Create LAN network between laptop and robot

First of all I don’t really know if this is the right community for the question. And second, I’m a noob in telecommunications and I want to know what should I do to establish a good wireless ...
Pau's user avatar
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What RF transceivers modules are used on AUVs for communication with ground station?

I am working on a project where we want a RF transceiver on the AUV for communicating with the ground station when its on the water surface. I am looking for RF modules that can work in proximity to ...
Harish's user avatar
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How to do wireless communication between robots and desktops?

I'm currently controlling an autonomous navigating robot (turtlebot2) with the attached pc. However the attached pc doesn't have enough power to do image processing such as openpose, so I want to use ...
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Converting wired USB connection to a Bluetooth connection

Is there a way to convert usb wired signals to wireless Bluetooth signals? For example, can a usb keyboard be converted into a wireless Bluetooth keyboard using something that the keyboard can plug ...
SidS's user avatar
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Rospy and udp sockets

Hi, I want to send data (x,y and yaw values) over UDP to a system that isn't running ROS (a myRIO or any other micro-controller) I am using a code written in in python (ROSpy) by someone in else that ...
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Error while running rosserial on bluetooth

I have connected HC-05 to Arduino mega and initialized the bluetooth connection through port rfcomm0. I had uploaded the code to arduino and When i try running rosserial node to subscribe the message ...
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how control robot wireless using RViz?

i try to build robot that work like turtlebot. i dont want buy turtlebot . how can i control my robot from Rviz and send command to real robot wia wifi ? what hardware and circuit i need ? ...
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What relay or other gizmo do I need to switch between two circuits?

I have built a fighting bot but improvements could be made. I currently use 1 channel to switch spinners on and off and another for self righting. The spinners cannot turn during self righting as ...
Lee Wilson's user avatar
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254 views

Communication in SWARM robotics [closed]

Hey so I am trying to research into SWARM robotics, and trying to find helpful information or even articles/papers to read on the process of setting up communication protocols between different robots....
Zotto's user avatar
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3 votes
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How do I interface with a drone?

I recently bought a drone(quadcopter). I like how the drone works but now I would like to create an application that will allow me to control the drone remotely from my PC or Phone. How does a ...
Nirmal Raj's user avatar
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Raspberry pi 3 location in a set field, no gps

I'm developing a project which involves a raspberry pi 3 remote control rover and I need to know the exact location of the raspberry pi rover in a set field. Let's say I have four logs, one in each ...
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What wireless game controllers are supported by Indigo?

Can a microsoft xbox controller be used? Originally posted by Mike Peel on ROS Answers with karma: 1 on 2015-12-13 Post score: 0
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Why can two Series 1 XBees only talk in X-CTU?

I have two Series 1 XBees that won't be in transparent mode because they are in AT command mode when I'm not in X-CTU. I had asked for help elsewhere and no one had the answer except telling me about ...
user10514's user avatar
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What are the frequencies used for within drones?

What are these frequencies used for within the drone technology, and why these values? 35 MHz 433 MHz 868 MHz 2.4 GHz 5.8 GHz
user9933's user avatar
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3 answers
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Simple wireless connection between two circuits

I'm relatively new to robotics, and I'm building a project for which I need a simple wireless connection between two circuits such that when the first circuit is switched on, the other circuit gets ...
Cerberus's user avatar
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1 answer
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Arduino triggers a camera to start recording [closed]

I've already made an Arduino device which detects the trigger event, but now I want it to trigger the recording and storage of video when this event occurs. If the camera could be wirelessly ...
Eric's user avatar
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Connecting USB Xbox Controller to National Instruments cRIO

I have a FIRST Robotics spec National Instruments cRIO. I would like to connect a USB wireless Xbox controller to it in order to control it from a distance with minimal extra hardware (which is why I ...
carpenma's user avatar
1 vote
3 answers
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How can I communicate wirelessly between a RasPi and servo?

I want to use a Raspberry Pi to pan a camera mounted on a servo wirelessly from ~100 feet away. What are some good servos and transceivers for this? To clarify, there should be no physical connection ...
Richard's user avatar
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Connect ROSARIA to pionner robot using wifi

Hi, I have a P3DX robot with an onboard pc running Windows. I want to move it using a remote laptop running Linux with ROS and ROSARIA installed. The problem is that ROSARIA uses Serial port to ...
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1 vote
1 answer
185 views

Shallow underwater wireless sensor network [closed]

I need to make shallow (max 2m) underwater wireless sensor network. Data payload is about 10kB/s. I know that VLF band (~3-30kHz)could be the best solutions for that, but cause of time-to-market I ...
Tom33's user avatar
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using range-only sensors for mapping in SLAM

SLAM noob here but trying to implement an algorithm that fuses odometry data and mapping based on wifi signal strengths for a 2D robot. 1) After various readings of different resources, I came across ...
Raaj's user avatar
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2 answers
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What wireless technology to use to control robots in classroom?

I want to build a cheap robot programmable in Scratch graphical language, that could be employed during lessons in school. Scratch code is interpreted on a PC, so on the robot there should be only the ...
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ROS Answers SE migration: Network Setup

I have two computers, both running Ubuntu 12.04 and ROS Hydro. I have a Pioneer3-DX robot which I am running with p2os on one computer connect to the robot by ...
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3 votes
0 answers
104 views

choose ZigBee modules for full wireless mesh [closed]

What is the most common ZigBee IP Modules to create full wireless mesh mode? I know that it should be 1) coordinator and 2) router to create full-mesh But I am interesting about what kind of modules ...
Mikhail Nikitin's user avatar
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1 answer
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using wireless to send images

I'm new here. I want to save the rgb images and depth images from kinect and using wifi to send to another laptop.Is that accessible? If it's accessible, what packages do I need? Thank you very much. ...
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How do I capture images from a wifi camera?

Hi, i am new at this so I need your help, I need to capture images from a wifi camera( this in particular SJ4000 WIFI). I had thought of doing it using the usb_cam and changing the /dev/video0 for the ...
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1 vote
1 answer
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What type of Antennas to use for XBeePRo 2.4Ghz

I am planning to use 2.4Ghz XBeePro 63mW Devices for a project that requires a coverage area of around 1.5-2km. When i go to select an antenna there are various options like Circular,Virtical, ...
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Regarding Long distance wireless communication

I have a requirement to transmit some sensor data through wireless to a distance of 2 kilometers. I am a newbie to these technologies and concepts. Can anyone help me by providing some pointers to ...
Amal G Jose's user avatar
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1 answer
44 views

Sending a smartphone's GPS wireless

I'm building camera device which is able to take pictures of paragliders in mid air. To let the camera know where the glider is I thought about using GPS data from the pilot's smartphone. My ...
TobiasK's user avatar
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7 votes
4 answers
5k views

Robot docking for self-recharging

I want to build a simple obstacle avoider robot, but this time I want it to be self-recharging so I am building a dock for this purpose, so I want it to be able to locate the dock and go for it when ...
Jihed Jaouabi's user avatar
2 votes
2 answers
18k views

Control a 2.4 Ghz AR Drone from the computer [closed]

I had a Doyusha Nano Spider R/C mini-copter, it's controlled by a 4ch joystick 2.4 Ghz. I look for a low cost method to control it from the computer. The software is not a problem, but how can I ...
Amine Horseman's user avatar
1 vote
3 answers
6k views

How to control an Arduino Board with wireless PS3 controler?

I'm currently building a hexapod bot, composed with an Arduino Mega board and an USB SSC-32 (from Lynxmotion). But now I want add a PS3 wireless controller to move my hexapod, I have made some search ...
Arthur's user avatar
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1 answer
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Setting up wireless connection b/w Parrot drone and GCS

I have set up Odroid-U3 board with a WiFi module running ROS I would like to maintain wireless contact with the drone from my computer What command will enable me to do so? Originally posted by ...
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1 answer
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Further Optimization suggestion for wireless openni streaming

Let me first describe the system that I've came up with.. I have two Odroid-U3 with Asus Xtion Pro Live and Wifi. Both of them run the ...
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1 answer
23 views

Why publish if no one is subscribing?

Although it sounds like something my wife probably wonders about me sometimes - why do I talk if no one is listening? - I've wondered the same thing many times about a ROS publisher. I've never ran ...
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1 answer
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collecting robot activity data on-line

I would like recommendations or suggestions for automatically collecting usage information on a set of indoor robots. The robots all run ROS Hydro on Ubuntu Precise and have fairly good but not ...
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1 answer
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May I use ROS this way?

I am new to ROS. I have a robot, which collects data through its sensor. And I have a laptop with ROS residing on Ubuntu. I may want to send the sensor data to the laptop through a router. Is there ...
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0 votes
1 answer
6 views

How to handle unreliable connection with rospy?

Im running ROS on a AUV that connects wirelessly to a pilot computer. The AUV runs roscore and the pilot computer runs a few nodes to send commands and display its state. When the AUV loses connection ...
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0 votes
3 answers
3k views

Any image transfer protocol for wireless serial transfer?

I want to send image over wireless serial communication. I am planning to capture images using either raspberry pi or stm32 mcu using DCMI and then transfer image using wireless serial communication ...
nikhil's user avatar
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1 vote
2 answers
452 views

GPS Amplifier - Is this reliable?

I'm multimedia developer who is searching for a way to get GPS signal inside buildings/structures. Is amplification a reliable way to fix this GPS signal issue? Will a "GPS Amplifier" work as ...
fiskolin's user avatar
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5 votes
1 answer
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Cons and pros of wireless technologies for rescue robot

robotics enthusiasts! I'm a member of a team which has to develop a mobile rescue robot to cooperate with firemen (e.g. on earthquake sites). The problem we have is connection of a commander post ...
Martin Pecka's user avatar
1 vote
4 answers
2k views

RC Transmitter Quadcopter with Arduino

I have a WL v262 quadcopter and I want to control it using Arduino instead of the joysticks on the transmitter. I opened up the transmitter and saw that each joystick has 2 potentiometers on the PCB ...
Raynos's user avatar
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3 votes
4 answers
145 views

Localising a robot swarm non-optically

This question is further to Localizing a swarm of robots. In summary: I want to create a swarm of robots which can each measure their own position in a 3x2m room with a 25cm high ceiling, to an ...
Rocketmagnet's user avatar
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9 votes
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679 views

Localizing a swarm of robots

I have a 300cm x 300cm room with a 25cm high ceiling (yes twenty five centimeters). It contains 50 small wheeled robots (about 20cm x 20cm). A central computer will orchestrate the movements of the ...
Rocketmagnet's user avatar
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sync problem on image and camera_info over wireless

I was running pgr_camera_driver (with a PointGrey Flea3 GigE camera) that published both color image and camera_info with the same timestamp in tandam over wireless network. Color image and ...
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