Mblock 3.4.12 Jun 2026

Unlike its successors, mBlock 3.4.12 is not a web-based application. It is a fully offline, standalone executable. Its core features include:

represents the final, most polished release of the "Scratch 2.0" lineage before the shift to mBlock 5 (which is based on Scratch 3.0 and Electron). This specific build number is frequently cited on GitHub, educational forums, and maker community boards as the "last great version." mblock 3.4.12

Using blocks to read data from ultrasonic sensors, light sensors, or line followers to trigger robot movements . Unlike its successors, mBlock 3

If you need Python, ESP32, AI features, or cross-platform cloud saving, you should use mBlock 5, Arduino IDE 2.0, or PlatformIO. This specific build number is frequently cited on

Do you have a story about using mBlock 3.4.12? Share your legacy robot projects in the comments below.

is unplugged from the robot's mainboard, as it can interfere with the USB serial communication. Robot Not Responding

Unlike newer versions (mBlock 5), version 3.4.12 is often preferred for older hardware setups or specific educational curricula that rely on the classic Scratch 2.0 layout . Typical Workflows