# stem Published articles for stem. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Petoi Quaddle - A mini robot dog for physical AI experimentation (Crowdfunding) DevFeed: [Petoi Quaddle - A mini robot dog for physical AI experimentation (Crowdfunding)]() Original publisher: [Read original article]() Author: Jean-Luc Aufranc (CNXSoft) Published: 2026-09-04T08:03:49Z Content type: news Language: en Sources: [CNX Software - Embedded Systems News]() Topics: [Robotics](), [Physical AI](), [ESP32-S3](), [Arduino](), [Raspberry Pi](), [coding](), [Open Source]() Tags: [3d-printing](), [arduino](), [broadcom-bcmxxxx](), [c-c-plus-plus](), [crowdfunding](), [edge-ai](), [education](), [esp32](), [esp32-s3](), [esphome](), [espressif](), [hardware](), [micropython](), [open-source](), [physical-ai](), [raspberry-pi](), [robot-dog](), [robotics](), [ros](), [simulator](), [smart-home](), [smart-speaker](), [stem](), [video]() ### AI overview The Petoi Quaddle is a mini robot dog designed for learning robotics, coding, physical AI, and 3D printing. It uses an ESP32-S3 motion core, optional AI hardware, OpenCat firmware, and multiple programming environments. Petoi launched it on Kickstarter with three models and planned December 2026 shipping. ### Source excerpt If you are not into ducks, but still would like to play around with physical AI, the Petoi Quaddle is a mini robot dog equipped with 4 servos controlling its legs and is designed to help people learn robotics, coding, AI, and 3D printing. The robot is powered by an ESP32-S3 motion core for servo control and wireless connectivity, and an optional ESP32-S3 AI core to enable voice commands and Smart Home control. The robot can walk, strafe, spin, talk back, and react to the user's touch. Three models are available depending on the user's requirements: Builder, Buddy, and Scout. A Raspberry Pi Zero can also be mounted on the top in place of the ESP32-S3-based AI core. Petoi Quaddle runs OpenCat open-source firmware (Arduino) already used in the earlier Petoi Bittle robot dog, first introduced in 2020. The robot can be programmed in a visual programming IDE with drag-and-drop [...] The post Petoi Quaddle - A mini robot dog for physical AI experimentation (Crowdfunding) appeared first on CNX Software - Embedded Systems News. ## 📚 3LM: A Benchmark for Arabic LLMs in STEM and Code DevFeed: [📚 3LM: A Benchmark for Arabic LLMs in STEM and Code]() Original publisher: [Read original article]() Author: Basma Boussaha; Leen AlQadi; Mughaira; Shaikha Alsuwaidi; Giulia Campesan; Ahmed Alzubaidi; Mohammed Alyafeai; Hakim Hacid Published: 2025-08-01T14:25:21Z Content type: article Language: en Sources: [Hugging Face - Blog]() Topics: [Benchmark](), [LLM evaluation / benchmarking](), [Large language models (LLMs)](), [datasets](), [Code generation]() Tags: [benchmark](), [code](), [code-generation](), [datasets](), [llms](), [ocr](), [quality-assurance](), [stem]() ### AI overview The article introduces 3LM, a benchmark for evaluating Arabic Large Language Models on STEM subjects, structured reasoning, formal logic, and code generation. It combines native educational multiple-choice questions, synthetic high-difficulty STEM questions, and translated code-generation tasks. ### Source excerpt A Blog post by Technology Innovation Institute on Hugging Face ## Verkle tree structure DevFeed: [Verkle tree structure]() Original publisher: [Read original article]() Author: Guillaume Ballet; Dankrad Feist Published: 2021-12-02T00:00:00Z Content type: tutorial Language: en Sources: [Ethereum Foundation Blog]() Topics: [Code](), [client]() Tags: [developers](), [how-to](), [implement](), [introduction](), [layout](), [merge](), [post](), [research-development](), [scheme](), [stem](), [storage](), [structure](), [vector]() ### AI overview This developer article explains the structure of draft Verkle tree EIP designs. It describes replacing Merkle tree hashes with vector commitments, merging account and storage tries, using 32-byte keys, and organizing keys into 31-byte stems with one-byte suffixes. ### Source excerpt A Verkle tree is a commitment scheme that works similar to a Merkle tree, but has much smaller witnesses. It works by replacing the hashes in a Merkle tree with a vector commitment, which makes wider branching factors more efficient. Thanks to Kevaundray Wedderburn for feedback on the post.... ## A Square Deal for Women DevFeed: [A Square Deal for Women]() Original publisher: [Read original article]() Author: Square Engineering Published: 2014-04-30T16:06:00Z Content type: opinion Language: en Sources: [Square Corner Blog](), [Square Corner Blog RSS Feed]() Topics: [Development](), [Code](), [Computer science]() Tags: [advocacy](), [career](), [company](), [computer-science](), [development](), [engineering](), [experience](), [program](), [stem](), [technical]() ### AI overview A Wellesley student describes participating in Square's College Code Camp, a program that brings women studying computer science to San Francisco to learn development languages, meet company leaders, and explore technical careers. The article also discusses Square's efforts to encourage women and girls to pursue STEM fields. ### Source excerpt A College Code Camp participant shares her experience as a women in STEM.