As mentioned, mBlock 3 is no longer supported by Makeblock. Therefore, downloading version 3.4.12 specifically from official sources is no longer possible.
Run the driver installation tool from the "Connect" menu again.
mBlock 3.4.12 is a legacy version of the popular graphical programming environment based on Scratch 2.0. While newer versions (mBlock 5) offer cross-platform and AI/IoT capabilities, version 3.4.12 remains widely used for its stability, offline functionality, and native support for Arduino code generation. This paper provides a technical overview, installation guidance, use cases, and troubleshooting tips for mBlock 3.4.12. mblock 3.4.12
Users can see the corresponding Arduino C code generated by their blocks, aiding the transition from visual to text-based coding. Why Choose mBlock 3.4.12 Over Newer Versions?
The installer includes an "Arduino Drivers" checkbox. Even if you think you have drivers, check it. This installs the CH340 and FTDI drivers required for clone boards. As mentioned, mBlock 3 is no longer supported by Makeblock
Allows your computer and robot to communicate in real-time. The computer processes the blocks, allowing the robot to perform actions instantly while connected via USB or Bluetooth.
void setup() pinMode(13, OUTPUT);
Understanding the UI is critical to harnessing its power.
Users drag blocks into the script area. For example, dragging a "when green flag clicked" block followed by a "set led on board onboard to red" block creates an immediate visual instruction. This mode interacts with the hardware in real-time via a USB cable or Bluetooth 2.4G serial module. Arduino Upload Mode mBlock 3
During or after installation, navigate to the "Connect" menu and select "Install Arduino Driver" (CH340/CH341 drivers) to allow your PC to recognize USB connections to the boards.
Without more specific information about what "mblock" refers to, here are a few educated guesses based on similar terms: