(4/5 if you are on legacy hardware).
After installing mBlock 3.4.12, you must install the Arduino USB driver. mblock 3.4.12
The 3.4.12 release streamlined the "Extension Manager," allowing users to add support for third-party hardware (e.g., generic servo motors, ultrasonic sensors, LCD screens) or user-defined blocks. This modularity was crucial for educators looking to expand beyond the standard mBot curriculum. (4/5 if you are on legacy hardware)
mBlock 3.4.12 was built on the framework, utilizing the source code of Scratch 2.0 . generic servo motors
Without more specific information about what "mblock" refers to, here are a few educated guesses based on similar terms: