{"id":45303,"date":"2020-01-08T10:01:24","date_gmt":"2020-01-08T17:01:24","guid":{"rendered":"https:\/\/www.realsenseai.com\/uncategorized-cn\/hedgehog-robot-by-erwhi\/"},"modified":"2026-03-19T15:55:33","modified_gmt":"2026-03-19T21:55:33","slug":"hedgehog-robot-by-erwhi","status":"publish","type":"post","link":"https:\/\/realsense-redesign.fwc-staging.com\/cn\/news-insights-cn\/hedgehog-robot-by-erwhi\/","title":{"rendered":"Build your first robot with ERWHI Hedgehog"},"content":{"rendered":"\nIf you have paid any attention at all to the technological advancements in the last decade, one thing is clear; robots are here to stay and will increasingly become a part of our daily lives. You will see more robots being used for tasks that are too dangerous for humans<\/a> such as nuclear site cleanup or disposal, being used to help fight fires while reducing the danger to human firefighters and more. Robots are also increasingly being used for repetitive<\/a> or physically demanding tasks, freeing up workers for more complex and creative work. As a developer or engineer, if you want to become part of this growing market, it can often seem challenging to get started with robotics. There are many different aspects to robotic development, from relatively simple challenges like giving the robot the ability to move, to complex problems like autonomous navigation and SLAM<\/a>. Once you have those problems solved, you can start to tackle the purpose of the robot \u2013 what task is it designed to do? How do you complete specific actions in a chaotic and ever-changing world?\n

The ERWHI Hedgehog<\/strong><\/h2>\nIf your goal for 2020 is to build your first robot, a great place to start would be the ERWHI Hedgehog \u2013 an open source hardware and software project designed and built by Giovanni Bruno. The project started when he joined the University of Naples Federico II in Naples, Italy to study automation engineering, and has grown with him as he continues his studies there. The first version of the robot was fairly simple \u2013 a robot that would run until it found a red ball. He named it \u201cERWHI\u201d \u2013 Eyed Robot With Human Interaction. Later on, he also needed to simulate and test some algorithms about navigation, so he created a new version of the robot with the \u00ae RealSense\u2122 R200 camera. The robots are designed to be small \u2013 specifically to fit in a backpack for easy train or bus travel as Giovanni commutes between home and his university.\n\n
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The RealSense R200 enabled ERWHI<\/figcaption><\/figure>\n\nA later version of the ERWHI became the basis for the Aaeon UP Robomaker kit when Giovanni attended the Maker Faire in Rome, 2017 and met the Aaeon team \u2013 the ERWHI\u00d7UP version of the robot used the RealSense ZR300 camera paired with the UP Squared main board. With Aaeon\u2019s support, Giovanni created a reference robot, an open design for people who need to develop a robot in a short period of time. In 2019 Aaeon released the UP Squared RoboMaker Developer Kit for AWS RoboMaker, which includes a number of the ERWHI Hedgehog main components \u2013 the UP Squared board, the RealSense Depth camera D435 and AI Core X, along with Giovanni\u2019s software.\n\n
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The ERWHI Hedgehog with the RealSense Depth Camera D435<\/figcaption><\/figure>\n

Small but Mighty<\/strong><\/h3>\nThe ERWHI Hedgehog design is based around the RealSense depth camera D435, with support also included to mount the D435i, the version of the camera which includes an IMU. In Giovanni\u2019s words \u201cRealSense is at the base of the robot as a fundamental part of the robot \u2013 3D SLAM implementation needs something like a depth camera or a stereo camera. The robot also fuses different data to evaluate odometry, so visual odometry estimation is computed from the RealSense images. From a hardware point of view, D435 seems to be the smallest device that offers RGBD streams at full HD resolution using global shutter. Since the ERWHI Hedgehog\u2019s footprint is 120mm by 120mm, the D435 was the best choice at 90 mm x 25 mm x 25 mm.\n\nCheck out this recent video of the ERWHI Hedgehog in the Neapolitan Subway.<\/em>\n