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Dany LE

JETTY: Jarvis Serial to ROS-2 Transport Layer

My ROS based DIY robot( presented in the previous post) uses the NVIDIA Jetson Nano for high level robotic algorithms with the ROS 2 middle-ware. The Jetson is connected to an Arduino via a serial link for low-level hardware interaction and control. As the Arduino is used for low-level communication

Jarvis: The DIY robot

It has been a while since i started to build an upgraded version of Dolly, my first DIY ROS based robot. This upgraded version is named Jarvis. Changes from the previous version: * Hardware: * The robot is now use tracks instead of wheels * Jarvis footprint is bigger and has more room

Control GPIO using the new Linux user space GPIO API

From the version 4.8, the Linux kernel introduces a new user space API based on character devices for managing and controlling GPIOs ( General-Purpose Input/Output). This post presents the basic of the new interface as well as a simple tutorial/example to demonstrate how to use the new API

Running your own AntOS VDE system using a Docker image

Update: The image is now available on Docker Hub at: https://hub.docker.com/r/xsangle/antosaio (image: xsangle/antosaio:latest). This post has been updated with the latest instructions on how to host a local instance of AntOS VDE using Docker. Building and setting up AntOS from scratch can

How to list supported ciphers suites of a server?

I run into a problem of how to check whether my SSL ciphers suites configuration works correctly on my server. Basically, with openssl, client can verify if the server supports a particular cipher suite using the following command: openssl s_client -cipher "$cipher" -CAfile ca/ca.crt -connect

AntOS 1.0.0-alpha

Github: https://github.com/lxsang/antos branch antos-1.0.0a Demo: https://app.iohub.dev/antos/ using user name and password: demo/demo If one wants to run AntOS VDE locally in their system, a docker image is available at: https://github.com/lxsang/antosaio API Documentation: https://doc.iohub.

Rust tip: (Unix) drop the current user privileges

Brief Rust is a modern programing language which is claimed to be blazingly fast and memory-efficient. It syntactically similar to C++, but is designed to provide better memory safety while maintaining high performance and productivity: * Zero cost abstraction: allow a perfect balance between performance and productivity * Memory efficient with no

Meet Dolly the robot

Ladies and gentlemen, please meet "Dolly the robot", the first version of my DIY mobile robot. My goal in this DIY project is to make a low-cost yet feature-rich ROS (Robot Operating System) based mobile robot that allow me to experiment my work on autonomous robot at home.

A first step guide to PhaROS

PhaROS is a collection of Pharo libraries that implements the ROS (Robot Operating System ) based client protocol. It allows developing robotic applications right in the Pharo environment by providing an abstract software layer between Pharo and ROS. This guide makes an assumption that readers already have some basic knowledge about

Dispatching tasks to multiple Pharo VMs using SystemProcess

Doing a research work in robotic domain using Pharo as a prototype and implementation tool (via phaROS) is a whole new experience. It is quite impressive to see how quick an implementation idea becomes a working prototype/solution in Pharo thanks to its productive development environment. Most of my robotic