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Ttelostelos-robotics.hashnode.devApr 21 · 9 min read

TwinVLA: Bimanual Manipulation from Two Single-Arm VLAs — Outperforming RDT-1B with 50 Episodes

TL;DR TwinVLA (arXiv:2511.05275) is a framework that composes two pretrained single-arm VLAs into a coordinated bimanual manipulation policy — without any large-scale bimanual pretraining. Two instances of SingleVLA (0.8B) are connected through Joint...

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Ttelostelos-robotics.hashnode.devApr 20 · 12 min read

Swerve Drive: Slip-Free Omnidirectional Platform — Complete Analysis (2/3/4-Wheel Comparison)

TL;DR Swerve Drive is an omnidirectional mobile platform where each wheel independently controls both its steering angle and drive speed. It achieves slip-free omnidirectional motion with full traction — the key advantage over Mecanum/Omni wheels. Th...

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Ttelostelos-robotics.hashnode.devApr 20 · 11 min read

GR00T N1 & N1.5: NVIDIA's Open-Source Humanoid Foundation Model — Complete Analysis

TL;DR GR00T N1 (arXiv:2503.14734) is NVIDIA's world-first open-source generalist humanoid robot foundation model, announced at GTC 2025 in March. GR00T N1.5 (May 2025) follows with FLARE loss + Eagle 2.5 VLM upgrade, pushing real-robot language-follo...

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PpikoTutorialpikotutorial.hashnode.devAug 15, 2025 · 7 min read

Trying ROS2: client/server within a single container

Welcome to the next pikoTutorial! In the first article of Trying ROS2 series I showed how to implement and examine a basic publisher and subscriber within a single Docker container. Now it's time for checking out how do you implement and set up a cli...

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PpikoTutorialpikotutorial.hashnode.devAug 5, 2025 · 7 min read

Trying ROS2: pub/sub within a single container

Welcome to the next pikoTutorial! I've worked with ROS 1 on various projects, but with its end-of-life approaching in 2025, it felt for me like the perfect time to dive into ROS 2. In this article you'll read about: setting up a typical ROS publishe...

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BBBtechienoob-diaries.hashnode.devAug 4, 2025 · 1 min read

Part 3: Installing the CARLA ROS2 Bridge

This is where the magic happens – connecting your ROS2 world with our CARLA simulator! We'll download and build the carla-ros-bridge from its repository. Navigate to /~ and clone the bridge repository: cd ~ sudo git clone --recurse-submodules https:...

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BBBtechienoob-diaries.hashnode.devAug 4, 2025 · 2 min read

Part 2: Installing ROS2 Humble - The Robotics Brain

Welcome to the second part of our beginner's journey! Now, it's time to dive into the powerful robotics framework ROS2 Humble, which will serve as the "brain" for our autonomous applications. After that, we'll install the crucial CARLA-ROS2 bridge to...

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PpikoTutorialpikotutorial.hashnode.devAug 3, 2025 · 1 min read

Bug of the week #9

Welcome to the next pikoTutorial! The error we're handling today is a ROS runtime error: The message type 'X' is invalid Typically occurring when calling commands like: ros2 topic echo /topic_name What does it mean? To understand where does this err...

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ABAbhiroop Bhavsarthekinematicloop.hashnode.devJul 7, 2025 · 3 min read

Why CAD is Not Just for Mechanical Students ?

🛠️ Introduction When most people hear CAD (Computer-Aided Design), they think of mechanical engineers designing gears or automotive parts.But in the world of robotics, CAD is just as essential or maybe even more. As a mechanical engineering student ...

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GKgayatri kumargeekee.hashnode.devJun 19, 2025 · 10 min read

📝Speak Clearly!

🏙️ The Problem in Robot Town... So far, bots like WeatherBot and UmbrellaBot have been talking to each other, but only using plain text messages (std_msgs/String). That’s like sending someone a sticky note with just one word: “Rainy.” But what if we...