Hello, The problem looks simple at first, but it really isn't. Building a media stack that behaves the same whether it runs inside the robot, on your laptop, in simulation, on your phone, or on a distant powerful machine (all with short, repeatable delays) is anything but trivial! Sharing here the excellent blog post on the media stack behind Reachy Mini: https://huggingface.co/blog/pollen-robotics/reachy-mini-media-stack submitted by /u/LKama07 [link] [Kommentare]
Been working on a PiCar-X build on a Raspberry Pi 4B. v1 goal: detect an AprilTag (36h11 family, ID 0), steer toward it with a PID controller, drive forward, and stop at a configured distance threshold. Toggle it on from a browser dashboard, 3-second countdown, and it goes. I built this entirely with Claude Code. It’s been a massive productivity boost while balancing a full-time job, and the process of building agentically has been a great learning experience. WebSocket concurrent send corruption The broadcast coroutine and the sensor push loop were both calling send_json() concurrently. At await boundaries they interleaved, Starlette threw, and the client was silently dropped from the send set — meaning the toggle-off confirmation never arrived and the button stayed stuck in active state even after the car stopped. Fixed by replacing the shared client set with a per-connection asyncio.Queue and a single drain task per connection. Camera color inversion that didn't respond to the obvious fixes BGR888 didn't fix it. RGB888 + cvtColor didn't fix it either. Root cause: capture_array() on this Pi hardware returns RGB regardless of the format name, and this platform's libjpeg encodes from RGB input correctly without any conversion. One-line fix once the actual data layout was confirmed via a frame diagnostic log. Had to fully remove Vilib It uses a Picamera2 internal API (allocator) removed in 0.3.36 — crashes on any camera restart after a chase session. Server now owns Picamera2 directly for the full session lifetime. What's next v2 candidates on the list: distance-proportional speed, latching stop behavior, camera tilt tracking, and operator override during chase. Stack: Raspberry Pi 4B · PiCar-X v2.0 · Picamera2 · pupil-apriltags · FastAPI · Python 3.13 submitted by /u/okineedaplan [link] [Kommentare]
I designed and made a fully open-source mobile robotics platform for my robot arm, making it a whole robotics manipulator platform. The arm has 5 degrees of freedom, and the platform is 4WD with differential steering. The plan is to upgrade to mecanum wheels in the future. Current electronics are an NXP FRDM board controlling everything over WiFi, with an L298N Motor driver for the platform and off-the-shelf servo motors by DFROBOT. The idea was to use components that are easily available and easy to use! The plan is to continue working on it and upgrading it! submitted by /u/milosrasic98 [link] [Kommentare]
Has anyone received IROS results? The results are supposed to be out next week but I see my submission status currently changed to undisclosed, which, as far as I know, this happens usually at the day of sending out the notification. Any idea? Did anyone get any notification? submitted by /u/Street_Night_4344 [link] [Kommentare]
Hey all, I'm a robotics engineer by training turned ML/AI engineer because of passion right after school. I want to start combining these skills together and I think a competition is the best way of doing it. Here's an example of a challenge I'm talking about to set expectations : https://www.intrinsic.ai/events/ai-for-industry-challenge Anyone up for this? L.E.1. I'm based in Europe. I think online only competitions would be easiest to start with to get momentum going, then if the results are worth it, we can consider meeting in person if it makes sense. L.E.2. I don't have the next challenge in mind yet, I'm open to suggestions. submitted by /u/Due_Pickle1627 [link] [Kommentare]