mBlock 3.4.12 remains one of the most reliable legacy software versions for introducing students to robotics, physical computing, and graphical programming. Based on MITβs Scratch 2.0 open-source code, this specific version bridges the gap between visual block-based coding and real-world hardware like Arduino boards and Makeblock robots.
: May require enabling older application permissions or adjusting security settings.
As a mature version of the 3.x series, mBlock 3.4.12 brought together all the powerful features that made the platform so popular: mblock 3.4.12
: Uses a "drag-and-drop" jigsaw-style interface to teach programming logic without requiring knowledge of syntax.
Connect your hardware via USB, check your computer's Device Manager for the correct COM port, and select that port under Connect > Serial Port within mBlock. Troubleshooting Common Connection Issues mBlock 3
As mentioned, mBlock 3 is no longer supported by Makeblock. Therefore, downloading version 3.4.12 specifically from official sources is no longer possible.
You cannot easily add new sensors. If a component isn't in the default library, you must manually edit the arduino folder inside the program files (a nightmare for teachers). As a mature version of the 3
mBlock 3.4.12 is a legacy, desktop-based graphical programming environment. It allows users to drag and drop coding blocks to control hardware or create interactive animations. The Scratch 2.0 Foundation
, and the familiar green panda appeared, ready to guide them. This version was specialβit was built on the open-source foundations of Scratch 2.0, making it feel like a colorful puzzle. With a click and a drag, the student snapped together a "When clicked" block and a "Move forward" command.
: It was designed to bridge the gap between digital sprites and physical hardware, specifically supporting Makeblock robots like the mBot and mBot Ranger, as well as Arduino Uno Arduino Code Preview