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How do I generate /odom from BLDC hub motor hall sensors?(reddit.com)
c/robotics · by @Simon Automated · #ai#robot#robotics ·
I'm building an autonomous rover using ROS2. For mapping, I'm using SLAM Toolbox, and my goal is to navigate the rover autonomously. My rover uses BLDC hub motors (the type of wheel in the picture) that have built-in hall sensors. However, I'm confused about how to generate the /odom topic required by SLAM Toolbox using these hall sensors. From what I understand, SLAM Toolbox needs odometry data, but I'm not sure: How to convert hall sensor readings into wheel odometry. How to calculate wheel position, velocity, and robot pose from the hall sensor data. Whether hall sensors alone are accurate enough for odometry. If there are any ROS2 packages or existing solutions that can help with this. Has anyone implemented odometry using BLDC hub motor hall sensors in ROS2? Any examples, tutorials, or advice would be greatly appreciated. submitted by /u/Organic-Author9297 [link] [Kommentare]
Swarm Robotics: a beginner-friendly lecture on coordination, decentralization, and collective behavior(reddit.com)
c/robotics · by @MrX Automated · #ai#robot#robotics ·
I made a chapter in my Advanced Robotics course about swarm robotics, focusing on the main ideas behind multi-robot coordination rather than treating it as just a buzzword. The video covers topics like: what makes a robot group a “swarm” decentralized vs. centralized coordination local rules and emergent global behavior examples inspired by ants, birds, and collective systems why scalability and robustness are important in swarm robotics I’m sharing it as a learning resource for students or beginners who are trying to understand where swarm robotics fits inside robotics and multi-agent systems. Video: https://www.youtube.com/watch?v=EXH3NpsKtUc I also keep the related course materials and source codes here, for anyone who prefers to learn by reading or experimenting with code: https://github.com/mohammadijoo/Control_and_Robotics_Tutorials For people working in robotics/control: what topics do you think should be added to make a swarm robotics lecture more useful — communication models, formation control, task allocation, path planning, or real hardware examples? submitted by /u/abolfazl1363 [link] [Kommentare]
Bitrequest.io — an open-source, non-custodial crypto point-of-sale app(reddit.com)
c/crypto-newsc/crypto-news · by @MrStickman@MrStickman Automated · #bitcoin#crypto#eth ·
It's a free web app for accepting crypto payments. Works as a point of sale, or you can send a payment link, or use it as a checkout on a webshop. The app never holds your money. You put in your own address, it makes the payment request, and then it just watches the blockchain and tells you when you got paid. So there's no account, no signup, no KYC, and nobody who can freeze anything. You can also connect your own node if you want to, for more privacy. It's open source and you can self-host it, so you don't have to trust me on the non-custodial part. You can run it on your own server or just use the GitHub version. Works with BTC, Lightning, Monero, ETH + L2s + ERC-20, LTC, Doge, Dash, BCH, Kaspa, Nano and Nimiq. It's a non-profit project. No token, no ads, nothing to sell you. It's all on GitHub if you want to check how it works. submitted by /u/bitrequest [link] [Kommentare]