Work - Mblock 3.4.12

In Edit > Arduino Mode Settings , you can select the exact board type (Uno, Mega, Nano) and the COM port. Save this configuration to avoid re-selecting every session.

: Built on the intuitive Scratch 2.0 framework, making it accessible for absolute beginners. mblock 3.4.12

If you can find a stable installer and a laptop from 2015, download it. Teach a student to turn on an LED using blocks, then show them the digitalWrite() command. That moment of understanding—seeing the abstraction peel away to reveal the machine code—is what mBlock 3.4.12 does best. In Edit > Arduino Mode Settings , you