Questions tagged [communication]
means of sending messages, orders, etc., through the transmission media like air, conductor. ...
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Is there a ROS kinetic topic for changing the image on Pepper's screen? [closed]
I need a way to change the image displayed in Pepper's screen, I have already launched the bringup and naoqi_driver but there ...
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ROS 2 Humble FastDDS Monitor
I struggle to use the eProsima FastDDS Monitor on Humble. I managed to make it work with Vulcanexus Docker image; however, if I follow the guide from 2022 Roscon presentation, I don't see any network ...
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ROS across computers connected with low-bandwidth bit steams
I am at the early stages in a design project which will involve a complex robotic system operating mostly autonomously (payload) with a very flaky downlink to a ground station.
ROS seems to be useful ...
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Is it possible to use high frequency antennas with low frequency RFID readers
I'm going for something similiar to this TRF7960A RFID MultiplexerExample System.
Is it possible to use the same TRF7960A RFID device (or any other ...
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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 ...
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Ros2 and communication - How do you post a Ros2 message in a text box in Unity?
I am developing a project with ros_msft_mrtk and would like to send simple messages via Ros2 to Unity or then to the Hololens2. Unfortunately, I don't understand Ros2's communication. I use the ...
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Yaskawa Comm Error
I have several DX100 & YRC1000 units on our plant network. Two of the units intermittently fault out with a comm error 1301. One is a DX100, the other is a YRC1000. The only way to clear the error ...
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OPC-UA in ROS 2 to communicate with PLC
I would like to establish a communication between my PLC (RevPi) which runs Codesys and a Jetson Nano (or Rasperry Pi) which will be running ROS2. The latter will be connected to a Router (for ...
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Trouble establishing Ethernet connection between UR3 and PC
First of all sorry if this forum is not the most adequate space for this type of question.
I am having a hard time establishing an Ethernet/IP connection between my UR3 and my computer, I am just ...
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Locating nearest device position
I have the following use case:
Given a set of points in a space, I would like to use a smartphone to detect and locate the closest point (Possibly accurate to the at least a meter range)
I am not ...
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How to perform decoupling between decision making and action execution in ROS2?
Hi I'm making a robot using:
ros2 foxy
OS Ubuntu Linux 20.04.2 LTS (Focal Fossa).
Linux 5.8.0-59-generic
I built an Action based on the tutorial Building an Action Server and Client. Then expanded ...
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When reading serial data between Arduino and a node, it hangs. How can I properly send and read data?
I'm using ROS2 foxy with no libraries installed. It runs on an Ubuntu 21.04 x64 machine with kernel 5.8.0-59-generic.
I created a project with the goal of controlling an Arduino using python serial in ...
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Jetson tx2 to Teensy 3.6 Serial communication issue
I am trying to establish serial communication between Nvidia Jetson Tx2 and Teensy 3.6. Using pyserial, while reading the data sent from Teensy 3.6 on Rx pin on the Jetson, I come to an error that ...
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solid communication methods for a docking robot
I have a simple robot which drives along a track and waters plants. After each watering mission, it should return to its dock for further instructions. The dock has a Raspberry Pi, while the robot ...
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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 ...
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Is there any RAPID instruction to save image as variable in YuMi integrated vision without using RobotStudio?
I want to perceive the images from the cameras embedded in YuMi IRB 14000 arms and store them as videos, in Ubuntu without using ABB RobotStudio.
is there any way to do that? if yes how can I do that ...
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Communication method between drone swarm members
I am a doing my FYP in drone swarm anti collision algorithm.
The project aims to develop an algorithm to fly a minimum of 3 drones and here are the requirements:
1-the drones can identify the ...
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Do I need Fantom Tether Interface for ROV
I try to make a ROV for some undergraduate science project.I planing to use raspberrypi for control and image processing but ı will use ethernet cable for cominication. But every source ı look they ...
Umut
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Multiple machine ROS image transmission error
I'm currently trying to establish communication between my Raspberry Pi based robot and a Cluster which are on the same network. Although I am able to ping and SSH one device using the other, I'm ...
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How can robots communicate, locate and identify each other?
I'm planning to build some simple robotic boats. They will be travelling some distance alone but should also be able to group and physically connect together to form one boat. When they are near each ...
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Can't get iRobot Create to respond
We have an iRobot Create connected to a Win 10 PC with the cable supplied with the unit.
We have followed the instructions here:
http://www.robotappstore.com/Knowledge-Base/How-to-Use-a-RealTerm-...
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iRobot 600 series OI wake from sleep via BRC
I have attached an Adafruit Circuit Playground Express to my Roomba OI, and after manually waking it up I am able to successfully send opcode commands based on the Roomba OI Manual. I can even start, ...
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Data saving/sharing standards for objects, actions and senses
I am working on a language (computer language) for robotics to communicate with each other.
I am looking for naming standards that is unique and usable for robotics, for example when two robots are ...
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MSP (Multiwii Serial Protocol) receiving data with pyMultiWii issue
I want to get telemetry data from my flight controller (Matek F405-CTR) and send control commands to it via MSP protocol.
I've already configured UART3 port on Matek in Inav configurator (look at pic)...
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How do robotics companies track faults in production systems?
Are there any specific tools or practices which robotics companies use in order to keep track of errors in:
Sensors/Actuators malfunctioning or returning unexpected results
Programming errors or ...
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Doppler effect in long distance communication using 868MHz band for telemetry signals
I am working on a project which involves multiple quadcopters working about 5 km away from the ground control station. The communication is planned to be done using RFD868+ modules on each of the ...
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Communication between Intel Edison and Open Mv7
I'm trying to do a simple communication between an Intel Edison and Open Mv 7 Camera through UART (Tx/Rx). I assumed this would be a simple task but both sides receive "�". Both are using python, the ...
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How to update the cartesian target when the robotic arm has a communication delay?
My robot system uses a 3D mouse to teleoperate the robotic arm's TCP. The robot returns its TCP's position every 10-20 milliseconds to the remote PC. The remote PC returns the new destination based on ...
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How to receive messages from a UR10 URScript?
I've been looking at existing this UR TCP/IP communication protocol answer, the data linked but I'm still a little confused to how I could retrieve values from calculations, for example ...
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How to work with arduino softwareserial communication?
This is my first project using Bluetooth module HC-05. I am using two of these modules. One is connected to an Arduino Nano(slave) and another one is connected to an Arduino Uno(master). I have paired ...
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DX100 controller communication protocol
I have a motoman robot for use in a pick and place application. It has a DX100 controller which has an ethernet interface which could be used to control a slave device using the Modbus TCP protocol.
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Sensors, Methods for Finding Other Robots
If I can constrain two robots to a hypothetical box, what sensors or common formal methods exist that would enable the two robots to meet? I am specifically interested in the communication of relative ...
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EtherCAT slave sensor node [closed]
We are currently working on a project where we want to use EtherCAT as a communication protocol between a central system (master) and several nodes (slaves). We want these slaves to have the following:...
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UR3 TCP/IP communication protocol
I'm currently programming a C socket for communicating via (Ethernet) TCP/IP with an UR3 robot which control software is version 3.3. I'm able to get raw data from the ports 30001,30002, and 30003. I ...
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TCP Communication with PCDuino
I'm working on a robot that is controlled by an xbox controller connected to a windows computer and commands are sent to a pcduino through a tcp connection. I have it working by sending a string of 1'...
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Building a stationary robot which can talk [closed]
I am a Computer Science major and I only have basic ideas on Robotics. I am planning to build a stationary cubical AI.
The main purpose of this bot will be that, it will have a sensor to check if ...
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Connecting a CC3D board with Raspberry Pi to get telemetry data
I want to get telemetry data in my Raspberry Pi that will be connected to a CC3D board either via USB cable or Serial communication. How can I get the data? I plan to have wifi communication between ...
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Establishing Data Transfer between two Raspberry Pi's using GPIO
Good day
I am currently implementing an autonomous quadcopter with stereo vision using raspberry Pi. One (Let's call this Pi_1) is responsible for stereo vision the other is responsible for motor ...
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How can I control fast real time sensor (250Hz) with slow system display(60Hz)
We do some experiments of real time representation of sensor position on TV. In this experiments, we used sensors for collect real time position in 3D at 250Hz and TV for Display the sensor position ...
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Which middleware for IPC and multi-threading in a autonomous robot? [closed]
Aim: To use multi-threading and inter-process communication(IPC) when coding an autonomous robot.
Platform: Embedded Linux (Yocto)
Constraints : Limited CPU power.
We are building an Autonomous ...
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Libusb and arduino communication not working
I am doing a line following robot based on opencv. I have my onboard computer(an old pandaboard) running opencv. It will calculate the offset from the required path and communicate it to the arduino ...
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How to transfer signed integers with libusb?
Folks at programmers stack exchange asked me ask here:
I want to communicate with an arduino and sent integers it. I code this program in C++. I initialy used bulk_transfer(), but it sends only char ...
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Is it possible to have A/V feed and serial communication on an RF transceiver at the same time on an Arduino?
Is it possible to transmit live audio/video feed and at the same time, receive commands through UART using only 1 RF transceiver connected to the Arduino board?
I want to control the Arduino through ...
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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 ...
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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 ...
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Communicating between a beaglebone black and an arduino using ttyO4
I'm trying to get an arduino to talk with a beaglebone black.
I have followed this tutorial for getting ttyO4 open on the BBB and used the following command on to set the serial line correctly:
...
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To control an omni wheel robot wirelessly using bluetooth and arduino
I am trying to control an omni wheel robot which has 4 motors using 2 joysticks, plus there are some actuation switches which I want to control too. I am using arduino mega and a pair of bluetooth ...
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control circuit of a humanoid robot (something like iCub or Asimo)
My friend and I are building the upper body of a humanoid robot for our M.Sc thesis project. There are 24 DC motors in this robot. The thing I want to know is what is the best way to command these ...
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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 ...
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Hokuyo URG-04LX-UG01 and Mac compatibility issues
I've got my hands on this laser range scanner but seem to have some problem receiving any output from it.
I can't find any guide on how to set it up on the internet, so I was wondering if it is even ...
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