Description from extension meta
Connect Scratch to Arduino version of Gizmo robots
Image from store
Description from store
Gizmo Robot Extension is an app that lets you connect an Arduino (UNO and Nano tested) with gizmo_firmata or carbot_firmata to ScratchX programming environment.
In version 2, you can also connect microbit robots with an ESP32cam to ScratchX or Scratch 3.0 using Wi-Fi or Bluetooth.
Similar to https://chrome.google.com/webstore/detail/lofi-robot-extension/opdjdfckgbogbagnkbkpjgficbampcel?hl=en